/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:50:02,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:50:02,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:50:03,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:50:03,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:50:03,033 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:50:03,034 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:50:03,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:50:03,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:50:03,041 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:50:03,042 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:50:03,044 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:50:03,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:50:03,049 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:50:03,052 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:50:03,053 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:50:03,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:50:03,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:50:03,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:50:03,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:50:03,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:50:03,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:50:03,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:50:03,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:50:03,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:50:03,077 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:50:03,077 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:50:03,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:50:03,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:50:03,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:50:03,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:50:03,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:50:03,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:50:03,084 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:50:03,086 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:50:03,086 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:50:03,087 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:50:03,087 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:50:03,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:50:03,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:50:03,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:50:03,090 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 08:50:03,131 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:50:03,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:50:03,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:50:03,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:50:03,135 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:50:03,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:50:03,135 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:50:03,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:50:03,136 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:50:03,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:50:03,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:50:03,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:50:03,137 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:50:03,138 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:50:03,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:50:03,138 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:50:03,138 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:50:03,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:50:03,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:50:03,139 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:50:03,139 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:50:03,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:50:03,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:50:03,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:50:03,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:50:03,140 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:50:03,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:50:03,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:50:03,141 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:50:03,141 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 08:50:03,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:50:03,494 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:50:03,499 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:50:03,501 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:50:03,501 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:50:03,502 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-14 08:50:03,579 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/58c0aab8b/7e81e455d64e4e959b8496af6fb599f3/FLAG3ef13fece [2020-10-14 08:50:04,332 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:50:04,333 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-14 08:50:04,364 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/58c0aab8b/7e81e455d64e4e959b8496af6fb599f3/FLAG3ef13fece [2020-10-14 08:50:04,435 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/58c0aab8b/7e81e455d64e4e959b8496af6fb599f3 [2020-10-14 08:50:04,446 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:50:04,448 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:50:04,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:50:04,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:50:04,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:50:04,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:50:04" (1/1) ... [2020-10-14 08:50:04,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@394dfe3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:50:04, skipping insertion in model container [2020-10-14 08:50:04,459 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:50:04" (1/1) ... [2020-10-14 08:50:04,467 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:50:04,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:50:05,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:50:05,542 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:50:05,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:50:05,962 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:50:05,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:50:05 WrapperNode [2020-10-14 08:50:05,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:50:05,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:50:05,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:50:05,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:50:05,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:50:05" (1/1) ... [2020-10-14 08:50:05,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:50:05" (1/1) ... [2020-10-14 08:50:06,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:50:05" (1/1) ... [2020-10-14 08:50:06,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:50:05" (1/1) ... [2020-10-14 08:50:06,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:50:05" (1/1) ... [2020-10-14 08:50:06,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:50:05" (1/1) ... [2020-10-14 08:50:06,172 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:50:05" (1/1) ... [2020-10-14 08:50:06,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:50:06,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:50:06,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:50:06,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:50:06,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:50:05" (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 08:50:06,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:50:06,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:50:06,278 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 08:50:06,278 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:50:06,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:50:06,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:50:06,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:50:06,280 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-14 08:50:06,280 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:50:06,280 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:50:06,281 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 08:50:06,281 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:50:06,281 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:50:06,281 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:50:06,281 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:50:06,282 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:50:06,283 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 08:50:06,283 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-14 08:50:06,283 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:50:06,283 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:50:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:50:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:50:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:50:08,794 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:50:08,794 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 08:50:08,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:50:08 BoogieIcfgContainer [2020-10-14 08:50:08,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:50:08,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:50:08,807 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:50:08,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:50:08,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:50:04" (1/3) ... [2020-10-14 08:50:08,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c53cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:50:08, skipping insertion in model container [2020-10-14 08:50:08,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:50:05" (2/3) ... [2020-10-14 08:50:08,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c53cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:50:08, skipping insertion in model container [2020-10-14 08:50:08,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:50:08" (3/3) ... [2020-10-14 08:50:08,815 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-14 08:50:08,825 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:50:08,837 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-10-14 08:50:08,850 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-10-14 08:50:08,889 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:50:08,889 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:50:08,889 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:50:08,889 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:50:08,890 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:50:08,890 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:50:08,890 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:50:08,890 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:50:08,938 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states. [2020-10-14 08:50:08,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-14 08:50:08,974 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:50:08,977 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:50:08,980 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:50:08,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:50:08,986 INFO L82 PathProgramCache]: Analyzing trace with hash 400936191, now seen corresponding path program 1 times [2020-10-14 08:50:08,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:50:08,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [219715217] [2020-10-14 08:50:08,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:50:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:50:09,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:09,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:09,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:09,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:09,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:10,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:10,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:10,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:10,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:11,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:11,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:14,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:50:14,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 08:50:14,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 08:50:14,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-14 08:50:14,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:50:14,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:50:14,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:50:14,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:50:14,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-14 08:50:14,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 08:50:15,248 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-14 08:50:15,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:50:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:50:15,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:15,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:50:15,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:50:15,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:50:15,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 08:50:15,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:50:15,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:50:15,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:50:15,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:50:15,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:50:15,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:50:15,343 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 08:50:15,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [219715217] [2020-10-14 08:50:15,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:50:15,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:50:15,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423460117] [2020-10-14 08:50:15,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:50:15,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:50:15,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:50:15,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:50:15,369 INFO L87 Difference]: Start difference. First operand 631 states. Second operand 6 states. [2020-10-14 08:50:16,246 WARN L193 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-14 08:50:20,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:50:20,359 INFO L93 Difference]: Finished difference Result 979 states and 1694 transitions. [2020-10-14 08:50:20,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:50:20,362 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 75 [2020-10-14 08:50:20,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:50:20,383 INFO L225 Difference]: With dead ends: 979 [2020-10-14 08:50:20,383 INFO L226 Difference]: Without dead ends: 547 [2020-10-14 08:50:20,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:50:20,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2020-10-14 08:50:20,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2020-10-14 08:50:20,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 547 states. [2020-10-14 08:50:20,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 681 transitions. [2020-10-14 08:50:20,475 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 681 transitions. Word has length 75 [2020-10-14 08:50:20,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:50:20,476 INFO L479 AbstractCegarLoop]: Abstraction has 547 states and 681 transitions. [2020-10-14 08:50:20,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:50:20,476 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 681 transitions. [2020-10-14 08:50:20,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-14 08:50:20,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:50:20,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:50:20,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:50:20,482 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:50:20,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:50:20,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1549459471, now seen corresponding path program 1 times [2020-10-14 08:50:20,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:50:20,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1962973417] [2020-10-14 08:50:20,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:50:20,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:50:20,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:20,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:20,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:20,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:20,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:21,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:21,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:21,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:25,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:50:25,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 08:50:25,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:50:25,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-10-14 08:50:25,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:50:25,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:50:25,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:50:25,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:50:25,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 08:50:25,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:50:26,376 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-14 08:50:26,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:50:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:50:26,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:26,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:50:26,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:50:26,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:50:26,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 08:50:26,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:50:26,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:50:26,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:50:26,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:50:26,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:50:26,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:50:26,477 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 08:50:26,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1962973417] [2020-10-14 08:50:26,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:50:26,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:50:26,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849181377] [2020-10-14 08:50:26,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:50:26,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:50:26,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:50:26,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:50:26,482 INFO L87 Difference]: Start difference. First operand 547 states and 681 transitions. Second operand 6 states. [2020-10-14 08:50:27,058 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification that was a NOOP. DAG size: 309 [2020-10-14 08:50:29,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:50:29,850 INFO L93 Difference]: Finished difference Result 1067 states and 1371 transitions. [2020-10-14 08:50:29,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:50:29,851 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 76 [2020-10-14 08:50:29,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:50:29,857 INFO L225 Difference]: With dead ends: 1067 [2020-10-14 08:50:29,858 INFO L226 Difference]: Without dead ends: 667 [2020-10-14 08:50:29,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:50:29,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2020-10-14 08:50:29,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 607. [2020-10-14 08:50:29,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2020-10-14 08:50:29,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 791 transitions. [2020-10-14 08:50:29,904 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 791 transitions. Word has length 76 [2020-10-14 08:50:29,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:50:29,904 INFO L479 AbstractCegarLoop]: Abstraction has 607 states and 791 transitions. [2020-10-14 08:50:29,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:50:29,905 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 791 transitions. [2020-10-14 08:50:29,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-14 08:50:29,907 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:50:29,907 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:50:29,907 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:50:29,908 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:50:29,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:50:29,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1964168161, now seen corresponding path program 1 times [2020-10-14 08:50:29,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:50:29,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1057904620] [2020-10-14 08:50:29,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:50:29,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:50:29,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:30,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:30,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:30,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:30,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:31,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:31,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:32,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:33,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:34,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:50:34,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 08:50:34,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 08:50:34,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-14 08:50:34,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:50:34,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:50:34,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:50:34,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:50:34,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-14 08:50:34,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:50:35,695 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-14 08:50:35,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:50:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:50:35,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:35,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:50:35,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:50:35,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:50:35,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:50:35,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:50:35,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:50:35,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:50:35,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:50:35,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:50:35,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:50:35,751 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 08:50:35,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1057904620] [2020-10-14 08:50:35,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:50:35,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:50:35,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712997698] [2020-10-14 08:50:35,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:50:35,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:50:35,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:50:35,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:50:35,755 INFO L87 Difference]: Start difference. First operand 607 states and 791 transitions. Second operand 6 states. [2020-10-14 08:50:36,272 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 302 [2020-10-14 08:50:41,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:50:41,630 INFO L93 Difference]: Finished difference Result 2644 states and 3676 transitions. [2020-10-14 08:50:41,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 08:50:41,630 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 77 [2020-10-14 08:50:41,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:50:41,642 INFO L225 Difference]: With dead ends: 2644 [2020-10-14 08:50:41,643 INFO L226 Difference]: Without dead ends: 2367 [2020-10-14 08:50:41,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:50:41,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2367 states. [2020-10-14 08:50:41,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2367 to 1337. [2020-10-14 08:50:41,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1337 states. [2020-10-14 08:50:41,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1894 transitions. [2020-10-14 08:50:41,727 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1894 transitions. Word has length 77 [2020-10-14 08:50:41,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:50:41,728 INFO L479 AbstractCegarLoop]: Abstraction has 1337 states and 1894 transitions. [2020-10-14 08:50:41,728 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:50:41,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1894 transitions. [2020-10-14 08:50:41,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-14 08:50:41,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:50:41,732 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:50:41,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:50:41,732 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:50:41,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:50:41,733 INFO L82 PathProgramCache]: Analyzing trace with hash -358602547, now seen corresponding path program 1 times [2020-10-14 08:50:41,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:50:41,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [114736224] [2020-10-14 08:50:41,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:50:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:50:41,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:41,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:41,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:42,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:42,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:42,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:42,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:43,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:43,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:44,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:46,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:50:46,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 08:50:46,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 08:50:46,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 08:50:46,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:50:46,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:50:46,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:50:46,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:50:46,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 08:50:46,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:50:47,568 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-14 08:50:47,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:50:47,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:50:47,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:47,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:50:47,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:50:47,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:50:47,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 08:50:47,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:50:47,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:50:47,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:50:47,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:50:47,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:50:47,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:50:47,668 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 08:50:47,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [114736224] [2020-10-14 08:50:47,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:50:47,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:50:47,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236197985] [2020-10-14 08:50:47,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:50:47,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:50:47,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:50:47,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:50:47,674 INFO L87 Difference]: Start difference. First operand 1337 states and 1894 transitions. Second operand 7 states. [2020-10-14 08:50:49,036 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 317 DAG size of output: 314 [2020-10-14 08:50:52,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:50:52,354 INFO L93 Difference]: Finished difference Result 2780 states and 3987 transitions. [2020-10-14 08:50:52,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 08:50:52,355 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2020-10-14 08:50:52,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:50:52,367 INFO L225 Difference]: With dead ends: 2780 [2020-10-14 08:50:52,368 INFO L226 Difference]: Without dead ends: 1994 [2020-10-14 08:50:52,371 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-14 08:50:52,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states. [2020-10-14 08:50:52,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1337. [2020-10-14 08:50:52,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1337 states. [2020-10-14 08:50:52,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1892 transitions. [2020-10-14 08:50:52,483 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1892 transitions. Word has length 77 [2020-10-14 08:50:52,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:50:52,486 INFO L479 AbstractCegarLoop]: Abstraction has 1337 states and 1892 transitions. [2020-10-14 08:50:52,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:50:52,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1892 transitions. [2020-10-14 08:50:52,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-14 08:50:52,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:50:52,490 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:50:52,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:50:52,490 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:50:52,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:50:52,491 INFO L82 PathProgramCache]: Analyzing trace with hash -274197178, now seen corresponding path program 1 times [2020-10-14 08:50:52,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:50:52,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1372159137] [2020-10-14 08:50:52,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:50:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:50:52,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:52,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:52,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:52,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:54,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:54,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:54,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:55,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:55,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:56,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:57,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:57,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:50:57,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 08:50:57,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 08:50:57,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-14 08:50:57,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:50:57,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:50:57,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:50:57,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 08:50:57,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 08:50:57,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:50:58,125 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-14 08:50:58,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:50:58,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:50:58,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:58,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:50:58,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:50:58,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:50:58,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 08:50:58,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:50:58,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:50:58,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:50:58,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:50:58,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:50:58,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:50:58,208 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 08:50:58,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1372159137] [2020-10-14 08:50:58,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:50:58,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:50:58,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268778748] [2020-10-14 08:50:58,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:50:58,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:50:58,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:50:58,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:50:58,211 INFO L87 Difference]: Start difference. First operand 1337 states and 1892 transitions. Second operand 6 states. [2020-10-14 08:50:58,722 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 302 [2020-10-14 08:51:03,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:51:03,422 INFO L93 Difference]: Finished difference Result 6929 states and 10289 transitions. [2020-10-14 08:51:03,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 08:51:03,423 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2020-10-14 08:51:03,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:51:03,453 INFO L225 Difference]: With dead ends: 6929 [2020-10-14 08:51:03,454 INFO L226 Difference]: Without dead ends: 6373 [2020-10-14 08:51:03,458 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:51:03,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6373 states. [2020-10-14 08:51:03,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6373 to 4085. [2020-10-14 08:51:03,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4085 states. [2020-10-14 08:51:03,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4085 states to 4085 states and 6021 transitions. [2020-10-14 08:51:03,766 INFO L78 Accepts]: Start accepts. Automaton has 4085 states and 6021 transitions. Word has length 78 [2020-10-14 08:51:03,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:51:03,769 INFO L479 AbstractCegarLoop]: Abstraction has 4085 states and 6021 transitions. [2020-10-14 08:51:03,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:51:03,769 INFO L276 IsEmpty]: Start isEmpty. Operand 4085 states and 6021 transitions. [2020-10-14 08:51:03,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-14 08:51:03,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:51:03,775 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:51:03,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:51:03,775 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:51:03,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:51:03,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1484333420, now seen corresponding path program 1 times [2020-10-14 08:51:03,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:51:03,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [763300400] [2020-10-14 08:51:03,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:51:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:51:03,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:03,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:03,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:04,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:04,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:05,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:05,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:06,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:06,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:08,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:08,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:08,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:08,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:51:08,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 08:51:08,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 08:51:08,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 08:51:08,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:51:08,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:51:08,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:51:08,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:51:08,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 08:51:08,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:51:09,370 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-14 08:51:09,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:51:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:51:09,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:09,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:51:09,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:51:09,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:51:09,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 08:51:09,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:51:09,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:51:09,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:51:09,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:51:09,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:51:09,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:51:09,442 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 08:51:09,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [763300400] [2020-10-14 08:51:09,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:51:09,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:51:09,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278774530] [2020-10-14 08:51:09,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:51:09,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:51:09,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:51:09,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:51:09,445 INFO L87 Difference]: Start difference. First operand 4085 states and 6021 transitions. Second operand 6 states. [2020-10-14 08:51:09,999 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-14 08:51:12,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:51:12,562 INFO L93 Difference]: Finished difference Result 10850 states and 16091 transitions. [2020-10-14 08:51:12,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:51:12,563 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2020-10-14 08:51:12,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:51:12,590 INFO L225 Difference]: With dead ends: 10850 [2020-10-14 08:51:12,590 INFO L226 Difference]: Without dead ends: 6868 [2020-10-14 08:51:12,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:51:12,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6868 states. [2020-10-14 08:51:13,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6868 to 6808. [2020-10-14 08:51:13,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6808 states. [2020-10-14 08:51:13,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6808 states to 6808 states and 10092 transitions. [2020-10-14 08:51:13,101 INFO L78 Accepts]: Start accepts. Automaton has 6808 states and 10092 transitions. Word has length 78 [2020-10-14 08:51:13,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:51:13,101 INFO L479 AbstractCegarLoop]: Abstraction has 6808 states and 10092 transitions. [2020-10-14 08:51:13,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:51:13,102 INFO L276 IsEmpty]: Start isEmpty. Operand 6808 states and 10092 transitions. [2020-10-14 08:51:13,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-14 08:51:13,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:51:13,108 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:51:13,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:51:13,109 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:51:13,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:51:13,109 INFO L82 PathProgramCache]: Analyzing trace with hash 272589022, now seen corresponding path program 1 times [2020-10-14 08:51:13,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:51:13,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1969323723] [2020-10-14 08:51:13,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:51:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:51:13,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:13,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:13,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:13,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:13,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:14,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:14,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:14,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:15,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:15,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:15,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:16,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:16,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:17,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:18,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:51:18,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 08:51:18,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:51:18,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 08:51:18,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:51:18,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:51:18,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:51:18,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:51:18,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 08:51:18,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:51:18,666 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-14 08:51:18,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:51:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:51:18,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:18,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:51:18,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:51:18,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:51:18,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 08:51:18,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:51:18,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:51:18,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:51:18,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:51:18,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:51:18,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:51:18,738 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 08:51:18,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1969323723] [2020-10-14 08:51:18,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:51:18,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:51:18,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658470560] [2020-10-14 08:51:18,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:51:18,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:51:18,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:51:18,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:51:18,741 INFO L87 Difference]: Start difference. First operand 6808 states and 10092 transitions. Second operand 6 states. [2020-10-14 08:51:19,277 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-14 08:51:21,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:51:21,387 INFO L93 Difference]: Finished difference Result 7854 states and 11662 transitions. [2020-10-14 08:51:21,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:51:21,387 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2020-10-14 08:51:21,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:51:21,402 INFO L225 Difference]: With dead ends: 7854 [2020-10-14 08:51:21,403 INFO L226 Difference]: Without dead ends: 3518 [2020-10-14 08:51:21,413 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:51:21,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3518 states. [2020-10-14 08:51:21,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3518 to 2001. [2020-10-14 08:51:21,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2001 states. [2020-10-14 08:51:21,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 2897 transitions. [2020-10-14 08:51:21,568 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 2897 transitions. Word has length 79 [2020-10-14 08:51:21,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:51:21,568 INFO L479 AbstractCegarLoop]: Abstraction has 2001 states and 2897 transitions. [2020-10-14 08:51:21,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:51:21,569 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 2897 transitions. [2020-10-14 08:51:21,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-14 08:51:21,572 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:51:21,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:51:21,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:51:21,572 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:51:21,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:51:21,573 INFO L82 PathProgramCache]: Analyzing trace with hash -567235832, now seen corresponding path program 1 times [2020-10-14 08:51:21,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:51:21,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [872079981] [2020-10-14 08:51:21,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:51:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:51:21,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:21,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:21,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:21,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:22,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:22,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:22,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:22,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:23,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:23,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:24,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:24,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:24,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:26,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:51:26,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 08:51:26,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-14 08:51:26,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 08:51:26,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:51:26,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:51:26,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:51:26,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:51:26,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 08:51:26,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:51:27,176 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-14 08:51:27,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:51:27,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:51:27,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:27,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:51:27,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:51:27,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:51:27,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 08:51:27,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:51:27,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:51:27,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:51:27,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:51:27,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:51:27,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:51:27,253 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 08:51:27,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [872079981] [2020-10-14 08:51:27,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:51:27,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:51:27,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572976248] [2020-10-14 08:51:27,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:51:27,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:51:27,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:51:27,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:51:27,256 INFO L87 Difference]: Start difference. First operand 2001 states and 2897 transitions. Second operand 10 states. [2020-10-14 08:51:27,834 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 314 [2020-10-14 08:51:31,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:51:31,382 INFO L93 Difference]: Finished difference Result 6580 states and 9776 transitions. [2020-10-14 08:51:31,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:51:31,383 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 80 [2020-10-14 08:51:31,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:51:31,411 INFO L225 Difference]: With dead ends: 6580 [2020-10-14 08:51:31,411 INFO L226 Difference]: Without dead ends: 5574 [2020-10-14 08:51:31,416 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:51:31,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5574 states. [2020-10-14 08:51:31,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5574 to 2001. [2020-10-14 08:51:31,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2001 states. [2020-10-14 08:51:31,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 2896 transitions. [2020-10-14 08:51:31,615 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 2896 transitions. Word has length 80 [2020-10-14 08:51:31,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:51:31,615 INFO L479 AbstractCegarLoop]: Abstraction has 2001 states and 2896 transitions. [2020-10-14 08:51:31,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:51:31,615 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 2896 transitions. [2020-10-14 08:51:31,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-14 08:51:31,618 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:51:31,619 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:51:31,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 08:51:31,619 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:51:31,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:51:31,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1777372074, now seen corresponding path program 1 times [2020-10-14 08:51:31,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:51:31,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2052547111] [2020-10-14 08:51:31,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:51:31,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:51:31,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:31,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:31,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:31,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:32,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:32,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:32,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:33,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:33,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:33,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:34,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:36,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:36,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:36,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:51:36,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 08:51:36,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-14 08:51:36,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 08:51:36,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:51:36,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:51:36,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:51:36,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:51:36,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 08:51:36,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:51:37,238 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-14 08:51:37,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:51:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:51:37,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:37,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:51:37,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:51:37,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:51:37,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 08:51:37,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:51:37,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:51:37,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:51:37,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:51:37,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:51:37,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:51:37,325 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 08:51:37,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2052547111] [2020-10-14 08:51:37,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:51:37,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:51:37,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621780927] [2020-10-14 08:51:37,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:51:37,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:51:37,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:51:37,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:51:37,328 INFO L87 Difference]: Start difference. First operand 2001 states and 2896 transitions. Second operand 10 states. [2020-10-14 08:51:37,963 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-14 08:51:41,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:51:41,299 INFO L93 Difference]: Finished difference Result 6979 states and 10467 transitions. [2020-10-14 08:51:41,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 08:51:41,299 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 80 [2020-10-14 08:51:41,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:51:41,314 INFO L225 Difference]: With dead ends: 6979 [2020-10-14 08:51:41,314 INFO L226 Difference]: Without dead ends: 5981 [2020-10-14 08:51:41,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2020-10-14 08:51:41,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5981 states. [2020-10-14 08:51:41,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5981 to 2001. [2020-10-14 08:51:41,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2001 states. [2020-10-14 08:51:41,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 2894 transitions. [2020-10-14 08:51:41,527 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 2894 transitions. Word has length 80 [2020-10-14 08:51:41,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:51:41,527 INFO L479 AbstractCegarLoop]: Abstraction has 2001 states and 2894 transitions. [2020-10-14 08:51:41,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:51:41,527 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 2894 transitions. [2020-10-14 08:51:41,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-14 08:51:41,530 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:51:41,530 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:51:41,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 08:51:41,531 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:51:41,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:51:41,531 INFO L82 PathProgramCache]: Analyzing trace with hash 588438710, now seen corresponding path program 1 times [2020-10-14 08:51:41,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:51:41,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [824166632] [2020-10-14 08:51:41,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:51:41,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:51:41,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:41,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:41,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:41,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:41,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:42,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:42,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:42,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:43,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:43,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:43,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:43,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:44,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:44,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:46,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:51:46,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 08:51:46,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:51:46,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 08:51:46,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:51:46,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:51:46,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:51:46,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:51:46,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 08:51:46,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:51:47,157 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-14 08:51:47,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:51:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:51:47,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:47,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:51:47,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:51:47,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:51:47,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 08:51:47,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:51:47,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:51:47,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:51:47,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:51:47,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:51:47,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:51:47,221 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 08:51:47,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [824166632] [2020-10-14 08:51:47,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:51:47,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:51:47,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164434844] [2020-10-14 08:51:47,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:51:47,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:51:47,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:51:47,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:51:47,224 INFO L87 Difference]: Start difference. First operand 2001 states and 2894 transitions. Second operand 10 states. [2020-10-14 08:51:47,856 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 314 [2020-10-14 08:51:51,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:51:51,027 INFO L93 Difference]: Finished difference Result 6590 states and 9781 transitions. [2020-10-14 08:51:51,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:51:51,028 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 80 [2020-10-14 08:51:51,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:51:51,041 INFO L225 Difference]: With dead ends: 6590 [2020-10-14 08:51:51,041 INFO L226 Difference]: Without dead ends: 5574 [2020-10-14 08:51:51,046 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:51:51,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5574 states. [2020-10-14 08:51:51,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5574 to 2001. [2020-10-14 08:51:51,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2001 states. [2020-10-14 08:51:51,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 2893 transitions. [2020-10-14 08:51:51,297 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 2893 transitions. Word has length 80 [2020-10-14 08:51:51,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:51:51,297 INFO L479 AbstractCegarLoop]: Abstraction has 2001 states and 2893 transitions. [2020-10-14 08:51:51,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:51:51,298 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 2893 transitions. [2020-10-14 08:51:51,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-14 08:51:51,301 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:51:51,301 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:51:51,301 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 08:51:51,301 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:51:51,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:51:51,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1647921329, now seen corresponding path program 1 times [2020-10-14 08:51:51,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:51:51,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1049391432] [2020-10-14 08:51:51,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:51:51,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:51:51,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:51,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:51,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:51,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:51,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:51,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:52,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:52,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:52,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:52,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:53,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:56,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:51:56,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 08:51:56,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 08:51:56,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:51:56,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:51:56,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:51:56,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:51:56,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:51:56,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 08:51:56,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:51:56,916 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-14 08:51:56,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:51:56,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:51:56,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:51:56,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:51:56,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:51:56,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:51:56,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 08:51:56,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:51:56,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:51:56,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:51:56,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:51:56,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:51:56,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:51:56,984 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 08:51:56,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1049391432] [2020-10-14 08:51:56,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:51:56,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:51:56,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658882323] [2020-10-14 08:51:56,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:51:56,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:51:56,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:51:56,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:51:56,987 INFO L87 Difference]: Start difference. First operand 2001 states and 2893 transitions. Second operand 10 states. [2020-10-14 08:51:57,563 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-14 08:52:01,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:52:01,267 INFO L93 Difference]: Finished difference Result 3739 states and 5443 transitions. [2020-10-14 08:52:01,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 08:52:01,267 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 80 [2020-10-14 08:52:01,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:52:01,273 INFO L225 Difference]: With dead ends: 3739 [2020-10-14 08:52:01,274 INFO L226 Difference]: Without dead ends: 2234 [2020-10-14 08:52:01,277 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2020-10-14 08:52:01,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2234 states. [2020-10-14 08:52:01,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2234 to 1158. [2020-10-14 08:52:01,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1158 states. [2020-10-14 08:52:01,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1639 transitions. [2020-10-14 08:52:01,415 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1639 transitions. Word has length 80 [2020-10-14 08:52:01,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:52:01,415 INFO L479 AbstractCegarLoop]: Abstraction has 1158 states and 1639 transitions. [2020-10-14 08:52:01,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:52:01,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1639 transitions. [2020-10-14 08:52:01,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 08:52:01,417 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:52:01,417 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:52:01,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 08:52:01,418 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:52:01,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:52:01,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1998827152, now seen corresponding path program 1 times [2020-10-14 08:52:01,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:52:01,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [96117701] [2020-10-14 08:52:01,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:52:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:52:01,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:01,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:01,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:01,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:03,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:03,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:03,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:04,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:04,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:04,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:04,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:04,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:05,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:05,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:06,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:52:06,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 08:52:06,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:52:06,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 08:52:06,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:52:06,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:52:06,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:52:06,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:52:06,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 08:52:06,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:52:06,984 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-14 08:52:06,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:52:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:52:07,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:07,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:52:07,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:52:07,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:52:07,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 08:52:07,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:52:07,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:52:07,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:52:07,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:52:07,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:52:07,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:52:07,051 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 08:52:07,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [96117701] [2020-10-14 08:52:07,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:52:07,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:52:07,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503138579] [2020-10-14 08:52:07,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:52:07,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:52:07,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:52:07,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:52:07,054 INFO L87 Difference]: Start difference. First operand 1158 states and 1639 transitions. Second operand 10 states. [2020-10-14 08:52:07,618 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 314 [2020-10-14 08:52:10,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:52:10,994 INFO L93 Difference]: Finished difference Result 2716 states and 3967 transitions. [2020-10-14 08:52:10,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:52:10,995 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 82 [2020-10-14 08:52:10,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:52:11,000 INFO L225 Difference]: With dead ends: 2716 [2020-10-14 08:52:11,000 INFO L226 Difference]: Without dead ends: 2218 [2020-10-14 08:52:11,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:52:11,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2218 states. [2020-10-14 08:52:11,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2218 to 1158. [2020-10-14 08:52:11,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1158 states. [2020-10-14 08:52:11,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1637 transitions. [2020-10-14 08:52:11,127 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1637 transitions. Word has length 82 [2020-10-14 08:52:11,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:52:11,127 INFO L479 AbstractCegarLoop]: Abstraction has 1158 states and 1637 transitions. [2020-10-14 08:52:11,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:52:11,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1637 transitions. [2020-10-14 08:52:11,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 08:52:11,129 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:52:11,129 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:52:11,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 08:52:11,129 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:52:11,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:52:11,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1116197092, now seen corresponding path program 1 times [2020-10-14 08:52:11,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:52:11,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [156279128] [2020-10-14 08:52:11,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:52:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:52:11,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:11,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:11,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:11,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:12,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:12,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:12,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:13,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:16,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:52:16,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 08:52:16,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:52:16,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 08:52:16,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:52:16,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:52:16,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:52:16,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:52:16,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 08:52:16,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:52:16,736 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-14 08:52:16,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:52:16,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:52:16,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:16,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:52:16,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:52:16,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:52:16,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:52:16,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:52:16,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:52:16,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:52:16,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:52:16,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:52:16,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:52:16,792 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 08:52:16,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [156279128] [2020-10-14 08:52:16,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:52:16,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:52:16,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612330308] [2020-10-14 08:52:16,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:52:16,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:52:16,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:52:16,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:52:16,794 INFO L87 Difference]: Start difference. First operand 1158 states and 1637 transitions. Second operand 10 states. [2020-10-14 08:52:17,369 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-14 08:52:21,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:52:21,850 INFO L93 Difference]: Finished difference Result 3698 states and 5469 transitions. [2020-10-14 08:52:21,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 08:52:21,850 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 82 [2020-10-14 08:52:21,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:52:21,856 INFO L225 Difference]: With dead ends: 3698 [2020-10-14 08:52:21,856 INFO L226 Difference]: Without dead ends: 3190 [2020-10-14 08:52:21,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2020-10-14 08:52:21,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3190 states. [2020-10-14 08:52:22,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3190 to 1158. [2020-10-14 08:52:22,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1158 states. [2020-10-14 08:52:22,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1635 transitions. [2020-10-14 08:52:22,011 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1635 transitions. Word has length 82 [2020-10-14 08:52:22,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:52:22,012 INFO L479 AbstractCegarLoop]: Abstraction has 1158 states and 1635 transitions. [2020-10-14 08:52:22,012 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:52:22,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1635 transitions. [2020-10-14 08:52:22,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 08:52:22,014 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:52:22,014 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:52:22,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 08:52:22,014 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:52:22,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:52:22,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1250943060, now seen corresponding path program 1 times [2020-10-14 08:52:22,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:52:22,015 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2093752390] [2020-10-14 08:52:22,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:52:22,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:52:22,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:22,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:22,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:22,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:22,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:22,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:22,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:23,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:23,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:23,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:24,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:24,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:24,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:24,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:24,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:25,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:26,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:27,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:52:27,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 08:52:27,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-14 08:52:27,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 08:52:27,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:52:27,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:52:27,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:52:27,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:52:27,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 08:52:27,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:52:27,652 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-14 08:52:27,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:52:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:52:27,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:27,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:52:27,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:52:27,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:52:27,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 08:52:27,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:52:27,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:52:27,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:52:27,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:52:27,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:52:27,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:52:27,724 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 08:52:27,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2093752390] [2020-10-14 08:52:27,725 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:52:27,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:52:27,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430048620] [2020-10-14 08:52:27,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:52:27,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:52:27,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:52:27,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:52:27,726 INFO L87 Difference]: Start difference. First operand 1158 states and 1635 transitions. Second operand 10 states. [2020-10-14 08:52:28,329 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification that was a NOOP. DAG size: 314 [2020-10-14 08:52:31,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:52:31,875 INFO L93 Difference]: Finished difference Result 2716 states and 3965 transitions. [2020-10-14 08:52:31,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:52:31,875 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 82 [2020-10-14 08:52:31,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:52:31,878 INFO L225 Difference]: With dead ends: 2716 [2020-10-14 08:52:31,879 INFO L226 Difference]: Without dead ends: 2218 [2020-10-14 08:52:31,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:52:31,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2218 states. [2020-10-14 08:52:32,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2218 to 1158. [2020-10-14 08:52:32,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1158 states. [2020-10-14 08:52:32,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1634 transitions. [2020-10-14 08:52:32,034 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1634 transitions. Word has length 82 [2020-10-14 08:52:32,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:52:32,034 INFO L479 AbstractCegarLoop]: Abstraction has 1158 states and 1634 transitions. [2020-10-14 08:52:32,034 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:52:32,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1634 transitions. [2020-10-14 08:52:32,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 08:52:32,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:52:32,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:52:32,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 08:52:32,042 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:52:32,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:52:32,042 INFO L82 PathProgramCache]: Analyzing trace with hash -333055338, now seen corresponding path program 1 times [2020-10-14 08:52:32,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:52:32,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1999928954] [2020-10-14 08:52:32,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:52:32,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:52:32,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:32,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:32,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:32,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:32,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:32,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:32,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:33,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:33,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:33,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:33,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:34,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:34,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:35,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:35,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:35,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:36,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:37,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:52:37,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 08:52:37,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-14 08:52:37,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 08:52:37,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:52:37,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:52:37,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:52:37,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:52:37,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 08:52:37,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:52:37,643 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-14 08:52:37,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:52:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:52:37,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:37,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:52:37,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:52:37,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:52:37,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:52:37,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:52:37,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:52:37,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:52:37,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:52:37,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:52:37,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:52:37,699 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 08:52:37,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1999928954] [2020-10-14 08:52:37,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:52:37,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:52:37,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767094721] [2020-10-14 08:52:37,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:52:37,700 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:52:37,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:52:37,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:52:37,700 INFO L87 Difference]: Start difference. First operand 1158 states and 1634 transitions. Second operand 10 states. [2020-10-14 08:52:38,279 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-14 08:52:42,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:52:42,111 INFO L93 Difference]: Finished difference Result 3207 states and 4712 transitions. [2020-10-14 08:52:42,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 08:52:42,111 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 82 [2020-10-14 08:52:42,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:52:42,115 INFO L225 Difference]: With dead ends: 3207 [2020-10-14 08:52:42,115 INFO L226 Difference]: Without dead ends: 3190 [2020-10-14 08:52:42,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2020-10-14 08:52:42,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3190 states. [2020-10-14 08:52:42,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3190 to 1158. [2020-10-14 08:52:42,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1158 states. [2020-10-14 08:52:42,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1630 transitions. [2020-10-14 08:52:42,220 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1630 transitions. Word has length 82 [2020-10-14 08:52:42,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:52:42,220 INFO L479 AbstractCegarLoop]: Abstraction has 1158 states and 1630 transitions. [2020-10-14 08:52:42,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:52:42,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1630 transitions. [2020-10-14 08:52:42,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 08:52:42,222 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:52:42,222 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:52:42,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 08:52:42,223 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:52:42,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:52:42,223 INFO L82 PathProgramCache]: Analyzing trace with hash 51992823, now seen corresponding path program 1 times [2020-10-14 08:52:42,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:52:42,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [893983427] [2020-10-14 08:52:42,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:52:42,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:52:42,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:42,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:42,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:42,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:42,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:43,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:44,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:44,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:44,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:44,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:44,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:45,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:45,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:46,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:46,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:46,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:46,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:47,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:52:47,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 08:52:47,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-14 08:52:47,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 08:52:47,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:52:47,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:52:47,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:52:47,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:52:47,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 08:52:47,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:52:47,841 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-14 08:52:47,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:52:47,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:52:47,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:47,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:52:47,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:52:47,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:52:47,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 08:52:47,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:52:47,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:52:47,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:52:47,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:52:47,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:52:47,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:52:47,935 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 08:52:47,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [893983427] [2020-10-14 08:52:47,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:52:47,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:52:47,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878951829] [2020-10-14 08:52:47,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:52:47,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:52:47,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:52:47,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:52:47,942 INFO L87 Difference]: Start difference. First operand 1158 states and 1630 transitions. Second operand 10 states. [2020-10-14 08:52:48,499 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 312 [2020-10-14 08:52:52,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:52:52,392 INFO L93 Difference]: Finished difference Result 3195 states and 4694 transitions. [2020-10-14 08:52:52,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 08:52:52,392 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 82 [2020-10-14 08:52:52,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:52:52,396 INFO L225 Difference]: With dead ends: 3195 [2020-10-14 08:52:52,396 INFO L226 Difference]: Without dead ends: 3190 [2020-10-14 08:52:52,397 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-10-14 08:52:52,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3190 states. [2020-10-14 08:52:52,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3190 to 1158. [2020-10-14 08:52:52,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1158 states. [2020-10-14 08:52:52,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1626 transitions. [2020-10-14 08:52:52,505 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1626 transitions. Word has length 82 [2020-10-14 08:52:52,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:52:52,505 INFO L479 AbstractCegarLoop]: Abstraction has 1158 states and 1626 transitions. [2020-10-14 08:52:52,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:52:52,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1626 transitions. [2020-10-14 08:52:52,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 08:52:52,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:52:52,507 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:52:52,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 08:52:52,508 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:52:52,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:52:52,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1402011788, now seen corresponding path program 1 times [2020-10-14 08:52:52,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:52:52,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2110975516] [2020-10-14 08:52:52,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:52:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:52:52,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:52,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:52,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:52,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:53,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:53,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:54,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:55,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:55,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:55,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:55,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:55,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:56,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:56,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:56,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:57,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:57,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:52:57,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 08:52:57,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 08:52:57,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 08:52:57,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:52:57,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:52:57,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:52:57,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:52:57,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 08:52:57,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:52:58,129 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-14 08:52:58,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:52:58,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:52:58,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:52:58,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:52:58,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:52:58,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:52:58,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 08:52:58,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:52:58,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:52:58,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:52:58,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:52:58,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:52:58,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:52:58,185 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 08:52:58,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2110975516] [2020-10-14 08:52:58,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:52:58,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:52:58,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259406866] [2020-10-14 08:52:58,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:52:58,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:52:58,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:52:58,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:52:58,187 INFO L87 Difference]: Start difference. First operand 1158 states and 1626 transitions. Second operand 10 states. [2020-10-14 08:52:58,746 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 312 [2020-10-14 08:53:02,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:53:02,954 INFO L93 Difference]: Finished difference Result 3195 states and 4690 transitions. [2020-10-14 08:53:02,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 08:53:02,955 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 82 [2020-10-14 08:53:02,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:53:02,958 INFO L225 Difference]: With dead ends: 3195 [2020-10-14 08:53:02,958 INFO L226 Difference]: Without dead ends: 3190 [2020-10-14 08:53:02,959 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=197, Invalid=505, Unknown=0, NotChecked=0, Total=702 [2020-10-14 08:53:02,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3190 states. [2020-10-14 08:53:03,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3190 to 1158. [2020-10-14 08:53:03,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1158 states. [2020-10-14 08:53:03,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1622 transitions. [2020-10-14 08:53:03,072 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1622 transitions. Word has length 82 [2020-10-14 08:53:03,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:53:03,073 INFO L479 AbstractCegarLoop]: Abstraction has 1158 states and 1622 transitions. [2020-10-14 08:53:03,073 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:53:03,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1622 transitions. [2020-10-14 08:53:03,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 08:53:03,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:53:03,074 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:53:03,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 08:53:03,075 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:53:03,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:53:03,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1330381301, now seen corresponding path program 1 times [2020-10-14 08:53:03,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:53:03,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2144667778] [2020-10-14 08:53:03,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:53:03,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:53:03,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:03,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:03,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:03,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:03,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:04,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:04,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:04,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:08,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:53:08,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 08:53:08,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:53:08,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 08:53:08,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:53:08,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:53:08,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:53:08,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:53:08,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 08:53:08,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:53:08,666 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-14 08:53:08,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:53:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:53:08,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:08,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:53:08,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:53:08,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:53:08,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:53:08,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:53:08,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:53:08,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:53:08,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:53:08,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:53:08,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:53:08,724 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 08:53:08,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2144667778] [2020-10-14 08:53:08,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:53:08,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:53:08,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716862171] [2020-10-14 08:53:08,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:53:08,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:53:08,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:53:08,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:53:08,726 INFO L87 Difference]: Start difference. First operand 1158 states and 1622 transitions. Second operand 10 states. [2020-10-14 08:53:09,287 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-14 08:53:13,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:53:13,246 INFO L93 Difference]: Finished difference Result 3688 states and 5440 transitions. [2020-10-14 08:53:13,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 08:53:13,247 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 82 [2020-10-14 08:53:13,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:53:13,251 INFO L225 Difference]: With dead ends: 3688 [2020-10-14 08:53:13,251 INFO L226 Difference]: Without dead ends: 3190 [2020-10-14 08:53:13,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2020-10-14 08:53:13,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3190 states. [2020-10-14 08:53:13,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3190 to 1158. [2020-10-14 08:53:13,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1158 states. [2020-10-14 08:53:13,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1620 transitions. [2020-10-14 08:53:13,381 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1620 transitions. Word has length 82 [2020-10-14 08:53:13,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:53:13,381 INFO L479 AbstractCegarLoop]: Abstraction has 1158 states and 1620 transitions. [2020-10-14 08:53:13,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:53:13,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1620 transitions. [2020-10-14 08:53:13,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 08:53:13,383 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:53:13,383 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:53:13,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 08:53:13,383 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:53:13,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:53:13,384 INFO L82 PathProgramCache]: Analyzing trace with hash 598775211, now seen corresponding path program 1 times [2020-10-14 08:53:13,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:53:13,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [701411697] [2020-10-14 08:53:13,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:53:13,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:53:13,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:13,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:13,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:13,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:13,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:14,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:14,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:16,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:16,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:16,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:17,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:17,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:17,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:18,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:18,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:53:18,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 08:53:18,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:53:18,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 08:53:18,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:53:18,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:53:18,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:53:18,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:53:18,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 08:53:18,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:53:18,984 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-14 08:53:18,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:53:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:53:19,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:19,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:53:19,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:53:19,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:53:19,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 08:53:19,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:53:19,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:53:19,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:53:19,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:53:19,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:53:19,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:53:19,042 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 08:53:19,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [701411697] [2020-10-14 08:53:19,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:53:19,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:53:19,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959275198] [2020-10-14 08:53:19,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:53:19,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:53:19,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:53:19,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:53:19,045 INFO L87 Difference]: Start difference. First operand 1158 states and 1620 transitions. Second operand 10 states. [2020-10-14 08:53:19,614 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 314 [2020-10-14 08:53:23,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:53:23,309 INFO L93 Difference]: Finished difference Result 2732 states and 3969 transitions. [2020-10-14 08:53:23,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:53:23,309 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 82 [2020-10-14 08:53:23,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:53:23,312 INFO L225 Difference]: With dead ends: 2732 [2020-10-14 08:53:23,312 INFO L226 Difference]: Without dead ends: 2218 [2020-10-14 08:53:23,314 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:53:23,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2218 states. [2020-10-14 08:53:23,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2218 to 1158. [2020-10-14 08:53:23,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1158 states. [2020-10-14 08:53:23,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1618 transitions. [2020-10-14 08:53:23,434 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1618 transitions. Word has length 82 [2020-10-14 08:53:23,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:53:23,435 INFO L479 AbstractCegarLoop]: Abstraction has 1158 states and 1618 transitions. [2020-10-14 08:53:23,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:53:23,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1618 transitions. [2020-10-14 08:53:23,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 08:53:23,436 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:53:23,436 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:53:23,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 08:53:23,437 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:53:23,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:53:23,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1181742117, now seen corresponding path program 1 times [2020-10-14 08:53:23,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:53:23,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1903196377] [2020-10-14 08:53:23,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:53:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:53:23,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:23,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:23,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:23,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:24,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:24,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:24,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:27,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:27,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:27,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:28,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:53:28,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 08:53:28,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 08:53:28,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 08:53:28,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:53:28,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:53:28,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:53:28,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:53:28,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 08:53:28,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:53:29,023 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-14 08:53:29,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:53:29,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:53:29,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:29,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:53:29,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:53:29,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:53:29,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:53:29,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:53:29,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:53:29,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:53:29,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:53:29,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:53:29,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:53:29,060 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 08:53:29,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1903196377] [2020-10-14 08:53:29,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:53:29,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:53:29,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483969730] [2020-10-14 08:53:29,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:53:29,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:53:29,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:53:29,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:53:29,062 INFO L87 Difference]: Start difference. First operand 1158 states and 1618 transitions. Second operand 9 states. [2020-10-14 08:53:29,608 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification that was a NOOP. DAG size: 308 [2020-10-14 08:53:32,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:53:32,361 INFO L93 Difference]: Finished difference Result 1954 states and 2795 transitions. [2020-10-14 08:53:32,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 08:53:32,361 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-10-14 08:53:32,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:53:32,368 INFO L225 Difference]: With dead ends: 1954 [2020-10-14 08:53:32,368 INFO L226 Difference]: Without dead ends: 1454 [2020-10-14 08:53:32,369 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2020-10-14 08:53:32,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2020-10-14 08:53:32,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 1136. [2020-10-14 08:53:32,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1136 states. [2020-10-14 08:53:32,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1583 transitions. [2020-10-14 08:53:32,618 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1583 transitions. Word has length 82 [2020-10-14 08:53:32,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:53:32,619 INFO L479 AbstractCegarLoop]: Abstraction has 1136 states and 1583 transitions. [2020-10-14 08:53:32,619 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:53:32,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1583 transitions. [2020-10-14 08:53:32,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-14 08:53:32,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:53:32,622 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:53:32,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 08:53:32,622 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:53:32,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:53:32,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1573903568, now seen corresponding path program 1 times [2020-10-14 08:53:32,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:53:32,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [974300028] [2020-10-14 08:53:32,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:53:32,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:53:32,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:32,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:32,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:33,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:33,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:34,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:34,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:34,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:34,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:35,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:35,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:37,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:53:37,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 08:53:37,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 08:53:37,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 08:53:37,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:53:37,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:53:37,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:53:37,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:53:37,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 08:53:37,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:53:38,237 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-14 08:53:38,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:53:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:53:38,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:38,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:53:38,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:53:38,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:53:38,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:53:38,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:53:38,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:53:38,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:53:38,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:53:38,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:53:38,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:53:38,295 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 08:53:38,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [974300028] [2020-10-14 08:53:38,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:53:38,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:53:38,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144696261] [2020-10-14 08:53:38,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:53:38,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:53:38,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:53:38,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:53:38,298 INFO L87 Difference]: Start difference. First operand 1136 states and 1583 transitions. Second operand 10 states. [2020-10-14 08:53:38,887 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 314 [2020-10-14 08:53:42,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:53:42,848 INFO L93 Difference]: Finished difference Result 2742 states and 3972 transitions. [2020-10-14 08:53:42,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:53:42,849 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2020-10-14 08:53:42,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:53:42,852 INFO L225 Difference]: With dead ends: 2742 [2020-10-14 08:53:42,852 INFO L226 Difference]: Without dead ends: 2198 [2020-10-14 08:53:42,853 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:53:42,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2198 states. [2020-10-14 08:53:42,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2198 to 1136. [2020-10-14 08:53:42,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1136 states. [2020-10-14 08:53:42,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1579 transitions. [2020-10-14 08:53:42,981 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1579 transitions. Word has length 83 [2020-10-14 08:53:42,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:53:42,981 INFO L479 AbstractCegarLoop]: Abstraction has 1136 states and 1579 transitions. [2020-10-14 08:53:42,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:53:42,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1579 transitions. [2020-10-14 08:53:42,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-14 08:53:42,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:53:42,982 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:53:42,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 08:53:42,983 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:53:42,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:53:42,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1220135847, now seen corresponding path program 1 times [2020-10-14 08:53:42,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:53:42,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [425569748] [2020-10-14 08:53:42,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:53:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:53:43,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:43,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:43,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:43,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:43,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:44,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:44,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:44,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:44,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:44,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:45,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:48,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:53:48,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 08:53:48,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 08:53:48,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 08:53:48,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:53:48,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:53:48,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:53:48,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:53:48,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 08:53:48,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:53:48,580 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-14 08:53:48,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:53:48,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:53:48,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:48,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:53:48,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:53:48,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:53:48,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:53:48,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:53:48,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:53:48,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:53:48,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:53:48,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:53:48,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:53:48,636 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 08:53:48,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [425569748] [2020-10-14 08:53:48,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:53:48,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:53:48,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104674065] [2020-10-14 08:53:48,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:53:48,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:53:48,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:53:48,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:53:48,638 INFO L87 Difference]: Start difference. First operand 1136 states and 1579 transitions. Second operand 10 states.