/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/Problem18_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:50:01,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:50:01,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:50:01,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:50:01,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:50:01,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:50:01,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:50:01,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:50:01,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:50:01,843 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:50:01,844 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:50:01,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:50:01,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:50:01,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:50:01,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:50:01,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:50:01,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:50:01,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:50:01,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:50:01,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:50:01,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:50:01,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:50:01,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:50:01,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:50:01,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:50:01,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:50:01,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:50:01,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:50:01,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:50:01,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:50:01,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:50:01,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:50:01,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:50:01,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:50:01,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:50:01,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:50:01,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:50:01,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:50:01,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:50:01,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:50:01,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:50:01,878 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 22:50:01,902 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:50:01,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:50:01,904 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:50:01,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:50:01,904 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:50:01,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:50:01,905 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:50:01,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:50:01,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:50:01,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:50:01,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:50:01,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:50:01,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:50:01,906 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:50:01,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:50:01,907 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:50:01,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:50:01,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:50:01,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:50:01,908 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:50:01,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:50:01,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:50:01,912 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:50:01,912 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:50:01,912 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:50:01,912 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:50:01,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:50:01,913 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:50:01,913 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:50:01,913 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 22:50:02,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:50:02,309 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:50:02,316 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:50:02,319 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:50:02,320 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:50:02,321 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label38.c [2020-10-14 22:50:02,412 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/152481de6/675caac5ede741db855f4bcb94a8af7e/FLAG9358d61f9 [2020-10-14 22:50:03,255 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:50:03,263 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label38.c [2020-10-14 22:50:03,294 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/152481de6/675caac5ede741db855f4bcb94a8af7e/FLAG9358d61f9 [2020-10-14 22:50:03,380 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/152481de6/675caac5ede741db855f4bcb94a8af7e [2020-10-14 22:50:03,393 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:50:03,396 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:50:03,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:50:03,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:50:03,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:50:03,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:50:03" (1/1) ... [2020-10-14 22:50:03,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@342faa78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:50:03, skipping insertion in model container [2020-10-14 22:50:03,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:50:03" (1/1) ... [2020-10-14 22:50:03,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:50:03,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:50:05,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:50:05,151 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:50:05,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:50:05,845 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:50:05,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:50:05 WrapperNode [2020-10-14 22:50:05,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:50:05,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:50:05,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:50:05,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:50:05,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:50:05" (1/1) ... [2020-10-14 22:50:05,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:50:05" (1/1) ... [2020-10-14 22:50:05,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:50:05" (1/1) ... [2020-10-14 22:50:05,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:50:05" (1/1) ... [2020-10-14 22:50:06,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:50:05" (1/1) ... [2020-10-14 22:50:06,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:50:05" (1/1) ... [2020-10-14 22:50:06,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:50:05" (1/1) ... [2020-10-14 22:50:06,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:50:06,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:50:06,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:50:06,232 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:50:06,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:50:05" (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 22:50:06,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:50:06,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:50:06,313 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:50:06,314 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:50:06,314 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 22:50:06,315 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:50:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:50:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:50:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 22:50:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:50:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:50:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:50:06,318 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:50:06,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:50:06,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:50:13,038 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:50:13,039 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:50:13,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:50:13 BoogieIcfgContainer [2020-10-14 22:50:13,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:50:13,061 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:50:13,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:50:13,065 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:50:13,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:50:03" (1/3) ... [2020-10-14 22:50:13,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@622dbeb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:50:13, skipping insertion in model container [2020-10-14 22:50:13,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:50:05" (2/3) ... [2020-10-14 22:50:13,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@622dbeb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:50:13, skipping insertion in model container [2020-10-14 22:50:13,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:50:13" (3/3) ... [2020-10-14 22:50:13,070 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label38.c [2020-10-14 22:50:13,087 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:50:13,100 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:50:13,117 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:50:13,152 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:50:13,153 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:50:13,153 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:50:13,153 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:50:13,153 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:50:13,153 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:50:13,154 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:50:13,154 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:50:13,201 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-14 22:50:13,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-14 22:50:13,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:50:13,215 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] [2020-10-14 22:50:13,215 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:50:13,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:50:13,223 INFO L82 PathProgramCache]: Analyzing trace with hash 2095199465, now seen corresponding path program 1 times [2020-10-14 22:50:13,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:50:13,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [251417318] [2020-10-14 22:50:13,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:50:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:13,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:13,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:13,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 22:50:13,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:13,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416 [2020-10-14 22:50:13,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:13,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:13,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:50:13,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:50:13,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 22:50:13,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:50:13,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:50:13,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:13,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:13,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:13,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:50:13,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:13,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:50:13,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:13,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:13,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:50:13,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:13,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:50:13,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:50:14,000 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 22:50:14,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [251417318] [2020-10-14 22:50:14,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:50:14,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:50:14,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236157300] [2020-10-14 22:50:14,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:50:14,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:50:14,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:50:14,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:50:14,033 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 4 states. [2020-10-14 22:50:21,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:50:21,456 INFO L93 Difference]: Finished difference Result 2270 states and 4349 transitions. [2020-10-14 22:50:21,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:50:21,459 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-10-14 22:50:21,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:50:21,507 INFO L225 Difference]: With dead ends: 2270 [2020-10-14 22:50:21,508 INFO L226 Difference]: Without dead ends: 1432 [2020-10-14 22:50:21,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:50:21,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-14 22:50:21,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1425. [2020-10-14 22:50:21,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-10-14 22:50:21,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2229 transitions. [2020-10-14 22:50:21,711 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2229 transitions. Word has length 26 [2020-10-14 22:50:21,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:50:21,711 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 2229 transitions. [2020-10-14 22:50:21,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:50:21,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2229 transitions. [2020-10-14 22:50:21,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 22:50:21,717 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:50:21,718 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 22:50:21,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:50:21,718 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:50:21,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:50:21,719 INFO L82 PathProgramCache]: Analyzing trace with hash 978092004, now seen corresponding path program 1 times [2020-10-14 22:50:21,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:50:21,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [93228805] [2020-10-14 22:50:21,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:50:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:21,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:22,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:22,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:22,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 22:50:22,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:50:22,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 784 [2020-10-14 22:50:22,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:22,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:22,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:50:22,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:50:22,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 22:50:22,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:50:22,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:50:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:22,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:22,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:22,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:50:22,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:22,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:50:22,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:22,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:22,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:50:22,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:22,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:50:22,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:22,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:50:22,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:22,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:22,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:22,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:50:22,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:22,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 22:50:22,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:22,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:22,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:50:22,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:50:22,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 22:50:22,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:22,843 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:50:22,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [93228805] [2020-10-14 22:50:22,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:50:22,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:50:22,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839205636] [2020-10-14 22:50:22,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:50:22,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:50:22,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:50:22,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:50:22,849 INFO L87 Difference]: Start difference. First operand 1425 states and 2229 transitions. Second operand 7 states. [2020-10-14 22:50:32,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:50:32,105 INFO L93 Difference]: Finished difference Result 4326 states and 6803 transitions. [2020-10-14 22:50:32,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:50:32,106 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 96 [2020-10-14 22:50:32,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:50:32,122 INFO L225 Difference]: With dead ends: 4326 [2020-10-14 22:50:32,123 INFO L226 Difference]: Without dead ends: 2907 [2020-10-14 22:50:32,127 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:50:32,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2020-10-14 22:50:32,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 2872. [2020-10-14 22:50:32,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2872 states. [2020-10-14 22:50:32,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2872 states to 2872 states and 3869 transitions. [2020-10-14 22:50:32,209 INFO L78 Accepts]: Start accepts. Automaton has 2872 states and 3869 transitions. Word has length 96 [2020-10-14 22:50:32,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:50:32,209 INFO L479 AbstractCegarLoop]: Abstraction has 2872 states and 3869 transitions. [2020-10-14 22:50:32,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:50:32,210 INFO L276 IsEmpty]: Start isEmpty. Operand 2872 states and 3869 transitions. [2020-10-14 22:50:32,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-14 22:50:32,212 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:50:32,212 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 22:50:32,213 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:50:32,213 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:50:32,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:50:32,213 INFO L82 PathProgramCache]: Analyzing trace with hash 732317436, now seen corresponding path program 1 times [2020-10-14 22:50:32,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:50:32,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308199052] [2020-10-14 22:50:32,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:50:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:32,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:32,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:32,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:32,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 22:50:32,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:50:32,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 642 [2020-10-14 22:50:32,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:32,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:32,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:50:32,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:50:32,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 22:50:32,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:32,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:50:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:32,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:32,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:32,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:50:32,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:32,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:50:32,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:32,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:32,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:50:32,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:32,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:50:32,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:32,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:50:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:33,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:33,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:33,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:50:33,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:33,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-14 22:50:33,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:33,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:33,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:50:33,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:50:33,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 22:50:33,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:33,431 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:50:33,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308199052] [2020-10-14 22:50:33,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:50:33,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:50:33,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804899002] [2020-10-14 22:50:33,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:50:33,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:50:33,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:50:33,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:50:33,435 INFO L87 Difference]: Start difference. First operand 2872 states and 3869 transitions. Second operand 7 states. [2020-10-14 22:50:43,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:50:43,909 INFO L93 Difference]: Finished difference Result 7289 states and 9554 transitions. [2020-10-14 22:50:43,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:50:43,913 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 116 [2020-10-14 22:50:43,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:50:43,939 INFO L225 Difference]: With dead ends: 7289 [2020-10-14 22:50:43,939 INFO L226 Difference]: Without dead ends: 4423 [2020-10-14 22:50:43,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:50:43,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4423 states. [2020-10-14 22:50:44,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4423 to 4332. [2020-10-14 22:50:44,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4332 states. [2020-10-14 22:50:44,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4332 states to 4332 states and 5417 transitions. [2020-10-14 22:50:44,156 INFO L78 Accepts]: Start accepts. Automaton has 4332 states and 5417 transitions. Word has length 116 [2020-10-14 22:50:44,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:50:44,157 INFO L479 AbstractCegarLoop]: Abstraction has 4332 states and 5417 transitions. [2020-10-14 22:50:44,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:50:44,157 INFO L276 IsEmpty]: Start isEmpty. Operand 4332 states and 5417 transitions. [2020-10-14 22:50:44,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-14 22:50:44,169 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:50:44,169 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 22:50:44,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:50:44,170 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:50:44,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:50:44,170 INFO L82 PathProgramCache]: Analyzing trace with hash -820903731, now seen corresponding path program 1 times [2020-10-14 22:50:44,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:50:44,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1889708000] [2020-10-14 22:50:44,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:50:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:44,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:44,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:45,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:45,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 22:50:45,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:50:45,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1106 [2020-10-14 22:50:45,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:45,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:45,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:50:45,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:50:45,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 22:50:45,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-14 22:50:45,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:50:45,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:45,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:45,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:45,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:50:45,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:45,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:50:45,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:45,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:45,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:50:45,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:45,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:50:45,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:45,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:50:45,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:45,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:45,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:45,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 22:50:45,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:45,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-14 22:50:45,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:45,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:45,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:50:45,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:50:45,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 22:50:45,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:45,937 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:50:45,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1889708000] [2020-10-14 22:50:45,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:50:45,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 22:50:45,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570396136] [2020-10-14 22:50:45,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:50:45,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:50:45,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:50:45,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:50:45,940 INFO L87 Difference]: Start difference. First operand 4332 states and 5417 transitions. Second operand 8 states. [2020-10-14 22:51:05,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:51:05,244 INFO L93 Difference]: Finished difference Result 11726 states and 15460 transitions. [2020-10-14 22:51:05,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:51:05,246 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 123 [2020-10-14 22:51:05,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:51:05,303 INFO L225 Difference]: With dead ends: 11726 [2020-10-14 22:51:05,304 INFO L226 Difference]: Without dead ends: 7400 [2020-10-14 22:51:05,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:51:05,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7400 states. [2020-10-14 22:51:05,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7400 to 5811. [2020-10-14 22:51:05,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5811 states. [2020-10-14 22:51:05,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5811 states to 5811 states and 7124 transitions. [2020-10-14 22:51:05,565 INFO L78 Accepts]: Start accepts. Automaton has 5811 states and 7124 transitions. Word has length 123 [2020-10-14 22:51:05,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:51:05,567 INFO L479 AbstractCegarLoop]: Abstraction has 5811 states and 7124 transitions. [2020-10-14 22:51:05,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:51:05,567 INFO L276 IsEmpty]: Start isEmpty. Operand 5811 states and 7124 transitions. [2020-10-14 22:51:05,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2020-10-14 22:51:05,576 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:51:05,577 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:05,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:51:05,577 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:51:05,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:51:05,578 INFO L82 PathProgramCache]: Analyzing trace with hash -202385590, now seen corresponding path program 1 times [2020-10-14 22:51:05,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:51:05,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1491201864] [2020-10-14 22:51:05,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:51:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:05,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:06,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:06,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:10,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:10,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 437 [2020-10-14 22:51:10,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:51:10,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 22:51:10,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:10,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:10,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:51:10,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:51:10,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-14 22:51:10,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:51:10,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:51:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:10,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:10,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:10,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:51:10,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:10,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:51:10,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:10,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:10,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:51:10,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:51:10,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:51:10,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:51:10,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:51:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:10,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:11,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:11,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:51:11,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:11,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 544 [2020-10-14 22:51:11,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:11,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:11,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:51:11,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:51:11,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-14 22:51:11,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 22:51:11,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:51:11,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:11,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:11,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:11,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:51:11,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:11,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 22:51:11,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:11,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:11,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:51:11,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:51:11,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 22:51:11,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:51:11,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-14 22:51:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:11,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:11,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:11,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:51:11,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:11,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 22:51:11,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:11,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:11,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:51:11,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-14 22:51:11,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:51:11,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:51:12,439 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 38 proven. 85 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 22:51:12,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1491201864] [2020-10-14 22:51:12,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:51:12,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:51:12,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184742510] [2020-10-14 22:51:12,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:51:12,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:51:12,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:51:12,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:51:12,444 INFO L87 Difference]: Start difference. First operand 5811 states and 7124 transitions. Second operand 8 states. [2020-10-14 22:51:24,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:51:24,220 INFO L93 Difference]: Finished difference Result 16920 states and 21145 transitions. [2020-10-14 22:51:24,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:51:24,221 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 423 [2020-10-14 22:51:24,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:51:24,280 INFO L225 Difference]: With dead ends: 16920 [2020-10-14 22:51:24,281 INFO L226 Difference]: Without dead ends: 11115 [2020-10-14 22:51:24,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:51:24,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11115 states. [2020-10-14 22:51:24,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11115 to 11013. [2020-10-14 22:51:24,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11013 states. [2020-10-14 22:51:24,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11013 states to 11013 states and 13082 transitions. [2020-10-14 22:51:24,617 INFO L78 Accepts]: Start accepts. Automaton has 11013 states and 13082 transitions. Word has length 423 [2020-10-14 22:51:24,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:51:24,617 INFO L479 AbstractCegarLoop]: Abstraction has 11013 states and 13082 transitions. [2020-10-14 22:51:24,618 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:51:24,618 INFO L276 IsEmpty]: Start isEmpty. Operand 11013 states and 13082 transitions. [2020-10-14 22:51:24,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2020-10-14 22:51:24,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:51:24,642 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:51:24,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:51:24,642 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:51:24,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:51:24,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1819885271, now seen corresponding path program 1 times [2020-10-14 22:51:24,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:51:24,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [85376810] [2020-10-14 22:51:24,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:51:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:24,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:24,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:26,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:26,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:29,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:29,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 625 [2020-10-14 22:51:29,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:51:29,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-10-14 22:51:29,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:29,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:29,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:51:29,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 22:51:29,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 404 [2020-10-14 22:51:29,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:51:29,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:51:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:29,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:29,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:29,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:51:29,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:29,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:51:29,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:29,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:29,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:51:29,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:51:29,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:51:29,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:51:29,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:51:29,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:29,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:30,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:30,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-14 22:51:30,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:30,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 22:51:30,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:30,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:30,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:51:30,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:51:30,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-14 22:51:30,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:51:30,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-14 22:51:30,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:30,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:30,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:31,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:31,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:51:31,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:51:31,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1302 [2020-10-14 22:51:31,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:31,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:31,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:51:31,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:51:31,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-14 22:51:31,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:51:31,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:51:31,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:31,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:31,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:31,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:51:31,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:31,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 22:51:31,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:31,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:31,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:51:31,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:51:31,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 22:51:31,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:51:31,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 501 [2020-10-14 22:51:31,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:31,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:31,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:31,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:51:31,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:31,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 22:51:31,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:31,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:31,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:51:31,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:51:31,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 22:51:31,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:51:32,249 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 329 proven. 4 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-10-14 22:51:32,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [85376810] [2020-10-14 22:51:32,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:51:32,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 22:51:32,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890912660] [2020-10-14 22:51:32,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 22:51:32,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:51:32,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 22:51:32,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-14 22:51:32,253 INFO L87 Difference]: Start difference. First operand 11013 states and 13082 transitions. Second operand 9 states. [2020-10-14 22:51:45,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:51:45,538 INFO L93 Difference]: Finished difference Result 31037 states and 37752 transitions. [2020-10-14 22:51:45,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 22:51:45,539 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 609 [2020-10-14 22:51:45,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:51:45,592 INFO L225 Difference]: With dead ends: 31037 [2020-10-14 22:51:45,592 INFO L226 Difference]: Without dead ends: 17589 [2020-10-14 22:51:45,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2020-10-14 22:51:45,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17589 states. [2020-10-14 22:51:45,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17589 to 16777. [2020-10-14 22:51:45,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16777 states. [2020-10-14 22:51:45,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16777 states to 16777 states and 18371 transitions. [2020-10-14 22:51:45,975 INFO L78 Accepts]: Start accepts. Automaton has 16777 states and 18371 transitions. Word has length 609 [2020-10-14 22:51:45,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:51:45,976 INFO L479 AbstractCegarLoop]: Abstraction has 16777 states and 18371 transitions. [2020-10-14 22:51:45,976 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 22:51:45,976 INFO L276 IsEmpty]: Start isEmpty. Operand 16777 states and 18371 transitions. [2020-10-14 22:51:46,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 951 [2020-10-14 22:51:46,008 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:51:46,009 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:51:46,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:51:46,009 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:51:46,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:51:46,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1096097006, now seen corresponding path program 1 times [2020-10-14 22:51:46,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:51:46,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [750924376] [2020-10-14 22:51:46,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:51:46,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:46,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:46,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:49,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:49,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 970 [2020-10-14 22:51:49,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:51:49,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3700 [2020-10-14 22:51:49,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:49,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:49,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:51:49,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-14 22:51:49,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 22:51:49,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:51:50,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:51:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:50,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:50,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:50,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:51:50,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:50,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:51:50,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:50,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:50,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:51:50,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:51:50,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:51:50,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:51:50,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:51:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:50,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:50,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:50,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:51:50,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:50,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-14 22:51:50,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:50,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:50,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:51:50,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:51:50,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:51:50,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:51:50,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:51:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:50,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:50,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:50,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:51:50,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:50,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 22:51:50,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:50,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:50,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:51:50,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:51:50,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:51:50,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:51:50,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:51:50,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:50,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:50,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:50,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:51:50,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:50,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:51:50,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:50,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:50,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:51:50,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:51:50,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:51:50,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:51:51,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:51:51,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:51,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:51,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:51,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:51:51,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:51,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-14 22:51:51,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:51,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:51,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:51:51,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:51:51,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 22:51:51,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:51:51,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:51:51,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:51,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:51,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:51,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:51:51,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:51,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:51:51,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:51,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:51,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:51:51,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:51:51,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:51:51,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:51:51,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:51:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:51:51,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:51:51,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:51:51,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:51:51,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:51:51,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 22:51:51,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:51:51,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:51:51,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:51:51,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:51:51,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 22:51:51,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:51:52,355 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 239 proven. 2 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-10-14 22:51:52,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [750924376] [2020-10-14 22:51:52,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:51:52,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:51:52,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446386132] [2020-10-14 22:51:52,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:51:52,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:51:52,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:51:52,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:51:52,360 INFO L87 Difference]: Start difference. First operand 16777 states and 18371 transitions. Second operand 7 states. [2020-10-14 22:51:59,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:51:59,718 INFO L93 Difference]: Finished difference Result 39535 states and 44491 transitions. [2020-10-14 22:51:59,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:51:59,719 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 950 [2020-10-14 22:51:59,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:51:59,794 INFO L225 Difference]: With dead ends: 39535 [2020-10-14 22:51:59,795 INFO L226 Difference]: Without dead ends: 24176 [2020-10-14 22:51:59,830 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:51:59,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24176 states. [2020-10-14 22:52:00,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24176 to 24049. [2020-10-14 22:52:00,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24049 states. [2020-10-14 22:52:00,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24049 states to 24049 states and 26715 transitions. [2020-10-14 22:52:00,298 INFO L78 Accepts]: Start accepts. Automaton has 24049 states and 26715 transitions. Word has length 950 [2020-10-14 22:52:00,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:52:00,301 INFO L479 AbstractCegarLoop]: Abstraction has 24049 states and 26715 transitions. [2020-10-14 22:52:00,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:52:00,301 INFO L276 IsEmpty]: Start isEmpty. Operand 24049 states and 26715 transitions. [2020-10-14 22:52:00,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1048 [2020-10-14 22:52:00,348 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:52:00,351 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:52:00,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:52:00,351 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:52:00,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:52:00,352 INFO L82 PathProgramCache]: Analyzing trace with hash 352293580, now seen corresponding path program 1 times [2020-10-14 22:52:00,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:52:00,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [266433994] [2020-10-14 22:52:00,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:52:00,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:00,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:00,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:01,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:05,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:05,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1069 [2020-10-14 22:52:05,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:52:05,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-10-14 22:52:05,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:05,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:05,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:52:05,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 930 [2020-10-14 22:52:05,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 22:52:05,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:52:05,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:52:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:05,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:05,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:05,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:52:05,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:05,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:52:05,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:05,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:05,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:05,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:05,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:05,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:52:05,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:52:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:05,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:05,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:05,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:52:05,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:05,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-14 22:52:05,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:05,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:05,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:05,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:05,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:05,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:52:06,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:52:06,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:06,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:06,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:06,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:52:06,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:06,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 22:52:06,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:06,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:06,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:06,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:06,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:06,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:52:06,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:52:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:06,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:06,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:06,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:52:06,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:06,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:52:06,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:06,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:06,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:06,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:06,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:06,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:52:06,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:52:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:06,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:06,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:06,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:52:06,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:06,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 22:52:06,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:06,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:06,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:06,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:06,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:06,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:52:06,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:52:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:06,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:06,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:06,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:52:06,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:06,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 22:52:06,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:06,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:06,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:06,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:06,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:06,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:52:06,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:52:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:06,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:06,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:06,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:52:06,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:06,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:52:06,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:06,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:06,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:52:06,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:06,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 22:52:06,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:52:06,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 918 [2020-10-14 22:52:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:06,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:06,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:06,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:52:06,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:06,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 22:52:06,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:06,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:06,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:52:06,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:52:06,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 22:52:06,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:52:07,640 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 375 proven. 2 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2020-10-14 22:52:07,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [266433994] [2020-10-14 22:52:07,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:52:07,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:52:07,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468950435] [2020-10-14 22:52:07,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:52:07,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:52:07,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:52:07,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:52:07,644 INFO L87 Difference]: Start difference. First operand 24049 states and 26715 transitions. Second operand 7 states. [2020-10-14 22:52:17,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:52:17,918 INFO L93 Difference]: Finished difference Result 49112 states and 55897 transitions. [2020-10-14 22:52:17,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:52:17,923 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1047 [2020-10-14 22:52:17,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:52:18,004 INFO L225 Difference]: With dead ends: 49112 [2020-10-14 22:52:18,004 INFO L226 Difference]: Without dead ends: 26481 [2020-10-14 22:52:18,044 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:52:18,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26481 states. [2020-10-14 22:52:18,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26481 to 26186. [2020-10-14 22:52:18,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26186 states. [2020-10-14 22:52:18,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26186 states to 26186 states and 28937 transitions. [2020-10-14 22:52:18,599 INFO L78 Accepts]: Start accepts. Automaton has 26186 states and 28937 transitions. Word has length 1047 [2020-10-14 22:52:18,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:52:18,601 INFO L479 AbstractCegarLoop]: Abstraction has 26186 states and 28937 transitions. [2020-10-14 22:52:18,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:52:18,602 INFO L276 IsEmpty]: Start isEmpty. Operand 26186 states and 28937 transitions. [2020-10-14 22:52:18,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1115 [2020-10-14 22:52:18,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:52:18,621 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:52:18,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:52:18,622 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:52:18,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:52:18,622 INFO L82 PathProgramCache]: Analyzing trace with hash -776481985, now seen corresponding path program 1 times [2020-10-14 22:52:18,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:52:18,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1282321537] [2020-10-14 22:52:18,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:52:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:18,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:20,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:20,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1136 [2020-10-14 22:52:20,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:20,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1282 [2020-10-14 22:52:20,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:20,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:20,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:52:20,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1110 [2020-10-14 22:52:20,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 22:52:20,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:52:20,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:52:20,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:20,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:20,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:20,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:52:20,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:20,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:52:20,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:20,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:20,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:20,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:20,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:20,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:52:20,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:52:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:20,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:20,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:20,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:52:20,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:20,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-14 22:52:20,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:20,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:20,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:20,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:20,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:20,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:52:20,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:52:20,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:20,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:20,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:20,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:52:20,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:20,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 22:52:20,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:20,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:20,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:20,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:20,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:20,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:52:20,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:52:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:20,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:20,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:20,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:52:20,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:20,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:52:20,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:20,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:20,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:20,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:20,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:20,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:52:21,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:52:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:21,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:21,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:21,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:52:21,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:21,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 22:52:21,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:21,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:21,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:21,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:21,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:21,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:52:21,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:52:21,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:21,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:21,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:21,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:52:21,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:21,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 22:52:21,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:21,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:21,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:21,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:21,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:21,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:52:21,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:52:21,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:21,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:21,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:21,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 22:52:21,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:21,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:52:21,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:21,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:21,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:21,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:21,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:21,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:52:21,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-14 22:52:21,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:21,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:21,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:21,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:52:21,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:21,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:52:21,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:21,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:21,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:52:21,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:21,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:52:21,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:52:22,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1002 backedges. 81 proven. 4 refuted. 0 times theorem prover too weak. 917 trivial. 0 not checked. [2020-10-14 22:52:22,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1282321537] [2020-10-14 22:52:22,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:52:22,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:52:22,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804588225] [2020-10-14 22:52:22,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:52:22,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:52:22,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:52:22,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:52:22,033 INFO L87 Difference]: Start difference. First operand 26186 states and 28937 transitions. Second operand 5 states. [2020-10-14 22:52:29,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:52:29,291 INFO L93 Difference]: Finished difference Result 54509 states and 61193 transitions. [2020-10-14 22:52:29,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:52:29,292 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1114 [2020-10-14 22:52:29,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:52:29,369 INFO L225 Difference]: With dead ends: 54509 [2020-10-14 22:52:29,370 INFO L226 Difference]: Without dead ends: 29741 [2020-10-14 22:52:29,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:52:29,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29741 states. [2020-10-14 22:52:29,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29741 to 29723. [2020-10-14 22:52:29,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29723 states. [2020-10-14 22:52:29,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29723 states to 29723 states and 32764 transitions. [2020-10-14 22:52:29,872 INFO L78 Accepts]: Start accepts. Automaton has 29723 states and 32764 transitions. Word has length 1114 [2020-10-14 22:52:29,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:52:29,874 INFO L479 AbstractCegarLoop]: Abstraction has 29723 states and 32764 transitions. [2020-10-14 22:52:29,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:52:29,875 INFO L276 IsEmpty]: Start isEmpty. Operand 29723 states and 32764 transitions. [2020-10-14 22:52:29,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1142 [2020-10-14 22:52:29,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:52:29,897 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:52:29,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:52:29,898 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:52:29,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:52:29,898 INFO L82 PathProgramCache]: Analyzing trace with hash 51535848, now seen corresponding path program 1 times [2020-10-14 22:52:29,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:52:29,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1673851326] [2020-10-14 22:52:29,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:52:30,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:30,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:30,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:33,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:34,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:35,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:35,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1163 [2020-10-14 22:52:35,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:52:35,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-14 22:52:35,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:35,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:35,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:52:35,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 976 [2020-10-14 22:52:35,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 162 [2020-10-14 22:52:35,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:52:35,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:52:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:35,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:35,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:35,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:52:35,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:35,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:52:35,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:35,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:35,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:35,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:35,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:35,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:52:35,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:52:35,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:35,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:35,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:35,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:52:35,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:35,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 22:52:35,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:35,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:35,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:35,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:35,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:35,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:52:35,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:52:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:35,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:35,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:35,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:52:35,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:35,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 22:52:35,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:35,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:35,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:35,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:35,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:35,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:52:35,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:52:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:35,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:35,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:35,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:52:35,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:35,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:52:35,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:35,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:35,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:35,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:35,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:35,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:52:35,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:52:35,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:35,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:35,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:35,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:52:35,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:35,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:52:35,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:35,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:35,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:35,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:35,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:35,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:52:35,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:52:35,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:35,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:36,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:36,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:52:36,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:36,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:52:36,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:36,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:36,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:36,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:36,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:36,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:52:36,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:52:36,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:36,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:36,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:36,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:52:36,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:36,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:52:36,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:36,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:36,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:52:36,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:36,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 22:52:36,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:52:36,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-14 22:52:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:36,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:36,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:36,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 22:52:36,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:36,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-14 22:52:36,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:36,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:36,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:52:36,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:52:36,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-14 22:52:36,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:52:36,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1067 backedges. 517 proven. 2 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2020-10-14 22:52:36,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1673851326] [2020-10-14 22:52:36,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:52:36,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:52:36,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122995492] [2020-10-14 22:52:36,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:52:36,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:52:36,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:52:36,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:52:36,967 INFO L87 Difference]: Start difference. First operand 29723 states and 32764 transitions. Second operand 7 states. [2020-10-14 22:52:46,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:52:46,275 INFO L93 Difference]: Finished difference Result 68739 states and 77518 transitions. [2020-10-14 22:52:46,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:52:46,282 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1141 [2020-10-14 22:52:46,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:52:46,397 INFO L225 Difference]: With dead ends: 68739 [2020-10-14 22:52:46,397 INFO L226 Difference]: Without dead ends: 40434 [2020-10-14 22:52:46,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:52:46,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40434 states. [2020-10-14 22:52:47,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40434 to 40383. [2020-10-14 22:52:47,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40383 states. [2020-10-14 22:52:47,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40383 states to 40383 states and 44622 transitions. [2020-10-14 22:52:47,122 INFO L78 Accepts]: Start accepts. Automaton has 40383 states and 44622 transitions. Word has length 1141 [2020-10-14 22:52:47,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:52:47,123 INFO L479 AbstractCegarLoop]: Abstraction has 40383 states and 44622 transitions. [2020-10-14 22:52:47,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:52:47,123 INFO L276 IsEmpty]: Start isEmpty. Operand 40383 states and 44622 transitions. [2020-10-14 22:52:47,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1177 [2020-10-14 22:52:47,144 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:52:47,148 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:52:47,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:52:47,148 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:52:47,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:52:47,149 INFO L82 PathProgramCache]: Analyzing trace with hash -4866180, now seen corresponding path program 1 times [2020-10-14 22:52:47,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:52:47,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1293164981] [2020-10-14 22:52:47,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:52:47,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:47,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:47,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:49,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:49,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:50,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:52,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:52,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1200 [2020-10-14 22:52:52,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:52:52,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5657 [2020-10-14 22:52:52,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:52,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:52,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:52:52,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 976 [2020-10-14 22:52:52,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 22:52:52,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:52:53,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:52:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:53,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:53,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:53,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:52:53,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:53,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:52:53,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:53,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:53,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:53,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:53,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:53,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:52:53,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:52:53,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:53,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:53,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:53,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:52:53,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:53,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 22:52:53,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:53,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:53,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:53,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:53,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:53,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:52:53,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:52:53,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:53,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:53,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:53,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:52:53,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:53,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 22:52:53,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:53,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:53,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:53,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:53,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:53,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:52:53,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:52:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:53,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:53,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:53,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:52:53,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:53,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:52:53,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:53,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:53,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:53,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:53,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:53,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:52:53,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:52:53,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:53,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:53,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:53,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:52:53,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:53,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 22:52:53,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:53,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:53,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:53,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:53,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:53,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:52:53,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:52:53,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:53,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:53,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:53,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:52:53,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:53,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:52:53,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:53,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:53,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:53,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:53,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:53,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:52:53,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:52:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:53,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:53,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:53,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:52:53,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:53,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 22:52:53,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:53,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:53,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:52:53,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:52:53,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 22:52:53,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:52:53,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-14 22:52:53,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:53,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:54,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:54,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 22:52:54,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:54,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 22:52:54,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:54,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:54,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:52:54,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:52:54,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 22:52:54,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:52:54,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1070 [2020-10-14 22:52:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:52:54,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:52:54,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:52:54,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:52:54,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:52:54,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:52:54,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:52:54,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:52:54,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:52:54,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 22:52:54,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:52:54,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:52:54,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1316 backedges. 426 proven. 87 refuted. 0 times theorem prover too weak. 803 trivial. 0 not checked. [2020-10-14 22:52:54,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1293164981] [2020-10-14 22:52:54,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:52:54,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:52:54,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221879130] [2020-10-14 22:52:54,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:52:54,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:52:54,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:52:54,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:52:54,663 INFO L87 Difference]: Start difference. First operand 40383 states and 44622 transitions. Second operand 7 states. [2020-10-14 22:53:07,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:53:07,150 INFO L93 Difference]: Finished difference Result 95048 states and 106710 transitions. [2020-10-14 22:53:07,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:53:07,151 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1176 [2020-10-14 22:53:07,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:53:07,291 INFO L225 Difference]: With dead ends: 95048 [2020-10-14 22:53:07,291 INFO L226 Difference]: Without dead ends: 56083 [2020-10-14 22:53:07,348 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:53:07,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56083 states. [2020-10-14 22:53:08,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56083 to 53234. [2020-10-14 22:53:08,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53234 states. [2020-10-14 22:53:08,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53234 states to 53234 states and 58776 transitions. [2020-10-14 22:53:08,103 INFO L78 Accepts]: Start accepts. Automaton has 53234 states and 58776 transitions. Word has length 1176 [2020-10-14 22:53:08,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:53:08,104 INFO L479 AbstractCegarLoop]: Abstraction has 53234 states and 58776 transitions. [2020-10-14 22:53:08,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:53:08,104 INFO L276 IsEmpty]: Start isEmpty. Operand 53234 states and 58776 transitions. [2020-10-14 22:53:08,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1319 [2020-10-14 22:53:08,141 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:53:08,143 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:53:08,143 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:53:08,143 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:53:08,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:53:08,144 INFO L82 PathProgramCache]: Analyzing trace with hash 665771783, now seen corresponding path program 1 times [2020-10-14 22:53:08,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:53:08,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [467088112] [2020-10-14 22:53:08,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:53:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:08,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:08,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:09,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:10,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:13,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:13,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1342 [2020-10-14 22:53:13,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:53:13,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5080 [2020-10-14 22:53:13,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:13,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:13,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:53:13,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 983 [2020-10-14 22:53:13,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-10-14 22:53:13,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:13,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:53:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:13,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:13,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:13,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:53:13,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:13,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:53:13,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:13,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:13,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:13,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:13,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:13,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:13,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:53:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:13,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:13,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:13,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:53:13,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:13,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 22:53:13,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:13,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:13,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:13,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:13,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:13,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:13,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:53:13,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:13,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:13,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:13,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:53:13,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:13,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:53:13,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:13,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:13,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:13,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:13,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:13,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:13,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:53:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:13,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:13,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:13,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:53:13,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:13,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:53:13,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:13,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:13,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:13,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:13,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:13,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:13,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:53:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:13,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:14,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:14,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-14 22:53:14,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:14,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-10-14 22:53:14,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:14,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:14,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:14,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:14,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:14,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:14,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:53:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:14,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:14,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:14,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 22:53:14,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:14,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 22:53:14,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:14,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:14,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:14,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:14,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:14,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:53:14,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-14 22:53:14,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:14,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:14,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:14,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:53:14,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:14,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 22:53:14,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:14,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:14,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:53:14,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:14,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 22:53:14,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:14,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-14 22:53:14,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:14,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:14,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:14,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-14 22:53:14,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:14,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-14 22:53:14,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:14,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:14,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:53:14,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:53:14,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 193 [2020-10-14 22:53:14,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:14,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1163 [2020-10-14 22:53:14,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:14,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:14,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:14,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 22:53:14,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:14,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:53:14,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:14,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:14,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:14,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-14 22:53:14,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:14,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:16,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1692 backedges. 614 proven. 136 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2020-10-14 22:53:16,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [467088112] [2020-10-14 22:53:16,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:53:16,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:53:16,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017863074] [2020-10-14 22:53:16,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:53:16,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:53:16,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:53:16,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:53:16,261 INFO L87 Difference]: Start difference. First operand 53234 states and 58776 transitions. Second operand 7 states. [2020-10-14 22:53:28,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:53:28,329 INFO L93 Difference]: Finished difference Result 115028 states and 127469 transitions. [2020-10-14 22:53:28,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:53:28,331 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1318 [2020-10-14 22:53:28,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:53:28,457 INFO L225 Difference]: With dead ends: 115028 [2020-10-14 22:53:28,458 INFO L226 Difference]: Without dead ends: 63212 [2020-10-14 22:53:28,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:53:28,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63212 states. [2020-10-14 22:53:29,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63212 to 63130. [2020-10-14 22:53:29,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63130 states. [2020-10-14 22:53:29,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63130 states to 63130 states and 69379 transitions. [2020-10-14 22:53:29,336 INFO L78 Accepts]: Start accepts. Automaton has 63130 states and 69379 transitions. Word has length 1318 [2020-10-14 22:53:29,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:53:29,337 INFO L479 AbstractCegarLoop]: Abstraction has 63130 states and 69379 transitions. [2020-10-14 22:53:29,337 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:53:29,337 INFO L276 IsEmpty]: Start isEmpty. Operand 63130 states and 69379 transitions. [2020-10-14 22:53:29,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1341 [2020-10-14 22:53:29,367 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:53:29,368 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:53:29,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:53:29,369 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:53:29,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:53:29,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1426964703, now seen corresponding path program 1 times [2020-10-14 22:53:29,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:53:29,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [356614993] [2020-10-14 22:53:29,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:53:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:29,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:29,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:30,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:34,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:34,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1366 [2020-10-14 22:53:34,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:53:34,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5068 [2020-10-14 22:53:34,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:34,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:34,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:53:34,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1201 [2020-10-14 22:53:34,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-14 22:53:34,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:34,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:53:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:34,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:34,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:34,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:53:34,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:34,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:53:34,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:34,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:34,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:34,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:34,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:34,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:34,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:53:34,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:34,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:35,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:35,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:53:35,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:35,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 22:53:35,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:35,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:35,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:35,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:35,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:35,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:35,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:53:35,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:35,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:35,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:35,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:53:35,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:35,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:53:35,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:35,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:35,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:35,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:35,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:35,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:53:35,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:53:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:35,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:35,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:35,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:53:35,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:35,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:53:35,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:35,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:35,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:35,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:35,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:35,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0