/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.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:41:32,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:41:32,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:41:32,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:41:32,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:41:32,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:41:32,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:41:32,308 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:41:32,310 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:41:32,310 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:41:32,311 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:41:32,312 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:41:32,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:41:32,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:41:32,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:41:32,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:41:32,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:41:32,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:41:32,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:41:32,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:41:32,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:41:32,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:41:32,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:41:32,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:41:32,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:41:32,327 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:41:32,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:41:32,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:41:32,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:41:32,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:41:32,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:41:32,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:41:32,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:41:32,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:41:32,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:41:32,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:41:32,334 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:41:32,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:41:32,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:41:32,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:41:32,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:41:32,337 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 08:41:32,384 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:41:32,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:41:32,386 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:41:32,386 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:41:32,386 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:41:32,387 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:41:32,387 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:41:32,387 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:41:32,389 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:41:32,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:41:32,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:41:32,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:41:32,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:41:32,390 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:41:32,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:41:32,390 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:41:32,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:41:32,393 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:41:32,393 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:41:32,393 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:41:32,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:41:32,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:41:32,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:41:32,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:41:32,394 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:41:32,395 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:41:32,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:41:32,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:41:32,395 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:41:32,395 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 08:41:32,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:41:32,743 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:41:32,746 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:41:32,748 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:41:32,748 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:41:32,749 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2020-10-14 08:41:32,829 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f429c7d92/3ebd2632367449f2bf2abb5216db2816/FLAGb1231e63a [2020-10-14 08:41:33,470 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:41:33,472 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2020-10-14 08:41:33,487 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f429c7d92/3ebd2632367449f2bf2abb5216db2816/FLAGb1231e63a [2020-10-14 08:41:33,687 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f429c7d92/3ebd2632367449f2bf2abb5216db2816 [2020-10-14 08:41:33,695 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:41:33,697 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:41:33,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:41:33,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:41:33,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:41:33,702 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:41:33" (1/1) ... [2020-10-14 08:41:33,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43889371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:41:33, skipping insertion in model container [2020-10-14 08:41:33,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:41:33" (1/1) ... [2020-10-14 08:41:33,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:41:33,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:41:34,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:41:34,545 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:41:34,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:41:34,953 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:41:34,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:41:34 WrapperNode [2020-10-14 08:41:34,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:41:34,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:41:34,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:41:34,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:41:34,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:41:34" (1/1) ... [2020-10-14 08:41:34,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:41:34" (1/1) ... [2020-10-14 08:41:35,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:41:34" (1/1) ... [2020-10-14 08:41:35,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:41:34" (1/1) ... [2020-10-14 08:41:35,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:41:34" (1/1) ... [2020-10-14 08:41:35,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:41:34" (1/1) ... [2020-10-14 08:41:35,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:41:34" (1/1) ... [2020-10-14 08:41:35,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:41:35,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:41:35,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:41:35,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:41:35,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:41:34" (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 08:41:35,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:41:35,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:41:35,246 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 08:41:35,246 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:41:35,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:41:35,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:41:35,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:41:35,249 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:41:35,249 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:41:35,249 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 08:41:35,250 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:41:35,250 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:41:35,250 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:41:35,250 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:41:35,250 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:41:35,251 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 08:41:35,252 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:41:35,252 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:41:35,252 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:41:35,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:41:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:41:36,727 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:41:36,728 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 08:41:36,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:41:36 BoogieIcfgContainer [2020-10-14 08:41:36,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:41:36,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:41:36,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:41:36,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:41:36,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:41:33" (1/3) ... [2020-10-14 08:41:36,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ef6dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:41:36, skipping insertion in model container [2020-10-14 08:41:36,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:41:34" (2/3) ... [2020-10-14 08:41:36,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ef6dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:41:36, skipping insertion in model container [2020-10-14 08:41:36,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:41:36" (3/3) ... [2020-10-14 08:41:36,746 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2020-10-14 08:41:36,757 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:41:36,766 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2020-10-14 08:41:36,782 INFO L251 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2020-10-14 08:41:36,811 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:41:36,811 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:41:36,812 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:41:36,812 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:41:36,812 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:41:36,812 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:41:36,812 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:41:36,813 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:41:36,841 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states. [2020-10-14 08:41:36,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-14 08:41:36,856 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:41:36,858 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] [2020-10-14 08:41:36,858 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:41:36,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:41:36,865 INFO L82 PathProgramCache]: Analyzing trace with hash 2049464648, now seen corresponding path program 1 times [2020-10-14 08:41:36,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:41:36,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1472982906] [2020-10-14 08:41:36,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:41:37,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:41:37,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:37,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:37,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:37,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:38,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:39,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:39,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:41,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:41,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:42,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:42,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:41:42,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-14 08:41:42,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 08:41:42,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 08:41:42,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:41:42,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:41:42,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:41:42,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:41:42,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 08:41:42,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 08:41:42,788 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:41:42,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:41:42,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:41:42,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:42,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:41:42,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:41:42,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:41:42,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 08:41:42,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:41:42,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:41:42,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:41:42,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:41:42,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:41:42,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:41:42,957 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 08:41:42,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1472982906] [2020-10-14 08:41:42,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:41:42,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:41:42,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343329757] [2020-10-14 08:41:42,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:41:42,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:41:42,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:41:42,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:41:42,986 INFO L87 Difference]: Start difference. First operand 363 states. Second operand 6 states. [2020-10-14 08:41:43,548 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-10-14 08:41:46,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:41:46,578 INFO L93 Difference]: Finished difference Result 683 states and 1141 transitions. [2020-10-14 08:41:46,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:41:46,580 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-10-14 08:41:46,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:41:46,611 INFO L225 Difference]: With dead ends: 683 [2020-10-14 08:41:46,611 INFO L226 Difference]: Without dead ends: 424 [2020-10-14 08:41:46,621 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:41:46,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-10-14 08:41:46,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 384. [2020-10-14 08:41:46,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2020-10-14 08:41:46,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 487 transitions. [2020-10-14 08:41:46,745 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 487 transitions. Word has length 63 [2020-10-14 08:41:46,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:41:46,746 INFO L479 AbstractCegarLoop]: Abstraction has 384 states and 487 transitions. [2020-10-14 08:41:46,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:41:46,746 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 487 transitions. [2020-10-14 08:41:46,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 08:41:46,758 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:41:46,758 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] [2020-10-14 08:41:46,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:41:46,759 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:41:46,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:41:46,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1956051638, now seen corresponding path program 1 times [2020-10-14 08:41:46,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:41:46,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1223864002] [2020-10-14 08:41:46,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:41:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:41:46,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:46,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:46,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:47,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:47,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:47,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:48,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:48,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:51,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:41:51,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 08:41:51,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:41:51,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 08:41:51,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:41:51,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:41:51,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:41:51,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:41:51,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 08:41:51,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-14 08:41:52,298 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:41:52,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:41:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:41:52,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:52,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:41:52,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:41:52,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:41:52,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:41:52,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:41:52,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:41:52,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:41:52,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:41:52,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:41:52,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:41:52,345 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 08:41:52,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1223864002] [2020-10-14 08:41:52,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:41:52,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:41:52,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282691391] [2020-10-14 08:41:52,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:41:52,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:41:52,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:41:52,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:41:52,350 INFO L87 Difference]: Start difference. First operand 384 states and 487 transitions. Second operand 7 states. [2020-10-14 08:41:52,707 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-10-14 08:41:54,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:41:54,336 INFO L93 Difference]: Finished difference Result 667 states and 865 transitions. [2020-10-14 08:41:54,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 08:41:54,337 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-10-14 08:41:54,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:41:54,340 INFO L225 Difference]: With dead ends: 667 [2020-10-14 08:41:54,341 INFO L226 Difference]: Without dead ends: 476 [2020-10-14 08:41:54,344 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:41:54,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-10-14 08:41:54,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 384. [2020-10-14 08:41:54,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2020-10-14 08:41:54,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 486 transitions. [2020-10-14 08:41:54,373 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 486 transitions. Word has length 64 [2020-10-14 08:41:54,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:41:54,373 INFO L479 AbstractCegarLoop]: Abstraction has 384 states and 486 transitions. [2020-10-14 08:41:54,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:41:54,374 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 486 transitions. [2020-10-14 08:41:54,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 08:41:54,375 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:41:54,375 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] [2020-10-14 08:41:54,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:41:54,376 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:41:54,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:41:54,376 INFO L82 PathProgramCache]: Analyzing trace with hash -141381272, now seen corresponding path program 1 times [2020-10-14 08:41:54,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:41:54,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1792422756] [2020-10-14 08:41:54,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:41:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:41:54,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:54,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:54,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:54,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:54,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:54,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:55,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:55,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:56,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:59,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:41:59,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 08:41:59,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 08:41:59,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:41:59,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:41:59,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:41:59,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:41:59,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:41:59,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 08:41:59,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:41:59,873 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:41:59,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:41:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:41:59,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:41:59,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:41:59,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:41:59,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:41:59,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:41:59,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:41:59,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:41:59,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:41:59,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:41:59,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:41:59,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:41:59,930 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 08:41:59,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1792422756] [2020-10-14 08:41:59,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:41:59,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:41:59,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480728584] [2020-10-14 08:41:59,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:41:59,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:41:59,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:41:59,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:41:59,935 INFO L87 Difference]: Start difference. First operand 384 states and 486 transitions. Second operand 6 states. [2020-10-14 08:42:00,236 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-14 08:42:02,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:42:02,691 INFO L93 Difference]: Finished difference Result 1278 states and 1813 transitions. [2020-10-14 08:42:02,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 08:42:02,694 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-10-14 08:42:02,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:42:02,700 INFO L225 Difference]: With dead ends: 1278 [2020-10-14 08:42:02,700 INFO L226 Difference]: Without dead ends: 1103 [2020-10-14 08:42:02,701 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:42:02,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2020-10-14 08:42:02,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 744. [2020-10-14 08:42:02,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-10-14 08:42:02,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1036 transitions. [2020-10-14 08:42:02,756 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1036 transitions. Word has length 64 [2020-10-14 08:42:02,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:42:02,756 INFO L479 AbstractCegarLoop]: Abstraction has 744 states and 1036 transitions. [2020-10-14 08:42:02,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:42:02,757 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1036 transitions. [2020-10-14 08:42:02,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 08:42:02,758 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:42:02,758 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] [2020-10-14 08:42:02,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:42:02,759 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:42:02,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:42:02,759 INFO L82 PathProgramCache]: Analyzing trace with hash 31377308, now seen corresponding path program 1 times [2020-10-14 08:42:02,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:42:02,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1485965881] [2020-10-14 08:42:02,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:42:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:42:02,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:02,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:02,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:03,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:04,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:04,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:04,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:04,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:05,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:05,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:06,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:06,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:06,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:07,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:07,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:07,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:07,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:42:07,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 08:42:07,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 08:42:07,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-14 08:42:07,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:42:07,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:42:07,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:42:07,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 08:42:07,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 08:42:07,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:42:08,160 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:42:08,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:42:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:42:08,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:08,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:42:08,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:42:08,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:42:08,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:42:08,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:42:08,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:42:08,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:42:08,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:42:08,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:42:08,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:42:08,205 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 08:42:08,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1485965881] [2020-10-14 08:42:08,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:42:08,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:42:08,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718968854] [2020-10-14 08:42:08,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:42:08,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:42:08,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:42:08,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:42:08,210 INFO L87 Difference]: Start difference. First operand 744 states and 1036 transitions. Second operand 6 states. [2020-10-14 08:42:08,555 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-14 08:42:11,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:42:11,320 INFO L93 Difference]: Finished difference Result 4554 states and 6774 transitions. [2020-10-14 08:42:11,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 08:42:11,321 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-10-14 08:42:11,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:42:11,357 INFO L225 Difference]: With dead ends: 4554 [2020-10-14 08:42:11,358 INFO L226 Difference]: Without dead ends: 4115 [2020-10-14 08:42:11,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:42:11,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4115 states. [2020-10-14 08:42:11,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4115 to 2285. [2020-10-14 08:42:11,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2285 states. [2020-10-14 08:42:11,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2285 states to 2285 states and 3364 transitions. [2020-10-14 08:42:11,593 INFO L78 Accepts]: Start accepts. Automaton has 2285 states and 3364 transitions. Word has length 65 [2020-10-14 08:42:11,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:42:11,596 INFO L479 AbstractCegarLoop]: Abstraction has 2285 states and 3364 transitions. [2020-10-14 08:42:11,596 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:42:11,597 INFO L276 IsEmpty]: Start isEmpty. Operand 2285 states and 3364 transitions. [2020-10-14 08:42:11,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 08:42:11,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:42:11,600 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] [2020-10-14 08:42:11,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:42:11,601 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:42:11,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:42:11,601 INFO L82 PathProgramCache]: Analyzing trace with hash -412578812, now seen corresponding path program 1 times [2020-10-14 08:42:11,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:42:11,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [584466929] [2020-10-14 08:42:11,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:42:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:42:11,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:11,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:11,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:12,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:13,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:13,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:13,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:13,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:13,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:14,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:14,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:14,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:14,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:15,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:15,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:15,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:15,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:15,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:16,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:42:16,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 08:42:16,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-14 08:42:16,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 08:42:16,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:42:16,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:42:16,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:42:16,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:42:16,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 08:42:16,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:42:17,039 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:42:17,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:42:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:42:17,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:17,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:42:17,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:42:17,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:42:17,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:42:17,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:42:17,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:42:17,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:42:17,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:42:17,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:42:17,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:42:17,081 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 08:42:17,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [584466929] [2020-10-14 08:42:17,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:42:17,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:42:17,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176344989] [2020-10-14 08:42:17,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:42:17,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:42:17,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:42:17,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:42:17,084 INFO L87 Difference]: Start difference. First operand 2285 states and 3364 transitions. Second operand 6 states. [2020-10-14 08:42:17,397 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-10-14 08:42:18,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:42:18,852 INFO L93 Difference]: Finished difference Result 6295 states and 9349 transitions. [2020-10-14 08:42:18,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:42:18,852 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-10-14 08:42:18,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:42:18,875 INFO L225 Difference]: With dead ends: 6295 [2020-10-14 08:42:18,876 INFO L226 Difference]: Without dead ends: 4094 [2020-10-14 08:42:18,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:42:18,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4094 states. [2020-10-14 08:42:19,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4094 to 4052. [2020-10-14 08:42:19,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4052 states. [2020-10-14 08:42:19,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4052 states to 4052 states and 6002 transitions. [2020-10-14 08:42:19,155 INFO L78 Accepts]: Start accepts. Automaton has 4052 states and 6002 transitions. Word has length 65 [2020-10-14 08:42:19,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:42:19,155 INFO L479 AbstractCegarLoop]: Abstraction has 4052 states and 6002 transitions. [2020-10-14 08:42:19,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:42:19,156 INFO L276 IsEmpty]: Start isEmpty. Operand 4052 states and 6002 transitions. [2020-10-14 08:42:19,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-14 08:42:19,158 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:42:19,158 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] [2020-10-14 08:42:19,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:42:19,158 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:42:19,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:42:19,159 INFO L82 PathProgramCache]: Analyzing trace with hash 2061391498, now seen corresponding path program 1 times [2020-10-14 08:42:19,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:42:19,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [11532668] [2020-10-14 08:42:19,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:42:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:42:19,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:19,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:19,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:19,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:19,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:19,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:20,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:20,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:20,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:20,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:21,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:21,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:21,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:21,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:21,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:21,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:21,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:24,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:42:24,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 08:42:24,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-14 08:42:24,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 08:42:24,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:42:24,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:42:24,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:42:24,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:42:24,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 08:42:24,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:42:24,597 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:42:24,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:42:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:42:24,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:24,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:42:24,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:42:24,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:42:24,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 08:42:24,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:42:24,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:42:24,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:42:24,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:42:24,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:42:24,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:42:24,689 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 08:42:24,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [11532668] [2020-10-14 08:42:24,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:42:24,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:42:24,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56533614] [2020-10-14 08:42:24,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:42:24,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:42:24,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:42:24,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:42:24,694 INFO L87 Difference]: Start difference. First operand 4052 states and 6002 transitions. Second operand 6 states. [2020-10-14 08:42:25,338 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 225 [2020-10-14 08:42:26,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:42:26,497 INFO L93 Difference]: Finished difference Result 4918 states and 7301 transitions. [2020-10-14 08:42:26,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:42:26,498 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2020-10-14 08:42:26,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:42:26,509 INFO L225 Difference]: With dead ends: 4918 [2020-10-14 08:42:26,509 INFO L226 Difference]: Without dead ends: 2098 [2020-10-14 08:42:26,515 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:42:26,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2098 states. [2020-10-14 08:42:26,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2098 to 1147. [2020-10-14 08:42:26,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1147 states. [2020-10-14 08:42:26,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1642 transitions. [2020-10-14 08:42:26,607 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1642 transitions. Word has length 66 [2020-10-14 08:42:26,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:42:26,607 INFO L479 AbstractCegarLoop]: Abstraction has 1147 states and 1642 transitions. [2020-10-14 08:42:26,608 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:42:26,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1642 transitions. [2020-10-14 08:42:26,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 08:42:26,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:42:26,609 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] [2020-10-14 08:42:26,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:42:26,610 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:42:26,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:42:26,610 INFO L82 PathProgramCache]: Analyzing trace with hash -216881066, now seen corresponding path program 1 times [2020-10-14 08:42:26,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:42:26,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070009510] [2020-10-14 08:42:26,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:42:26,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:42:26,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:26,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:26,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:26,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:27,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:27,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:31,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:31,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:31,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:42:31,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 08:42:31,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:42:31,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 08:42:31,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:42:31,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:42:31,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:42:31,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:42:31,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 08:42:31,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:42:31,990 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:42:31,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:42:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:42:32,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:32,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:42:32,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:42:32,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:42:32,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 08:42:32,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:42:32,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:42:32,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:42:32,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:42:32,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:42:32,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:42:32,051 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 08:42:32,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070009510] [2020-10-14 08:42:32,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:42:32,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:42:32,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428402345] [2020-10-14 08:42:32,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:42:32,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:42:32,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:42:32,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:42:32,054 INFO L87 Difference]: Start difference. First operand 1147 states and 1642 transitions. Second operand 10 states. [2020-10-14 08:42:32,414 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 228 [2020-10-14 08:42:34,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:42:34,365 INFO L93 Difference]: Finished difference Result 2830 states and 4166 transitions. [2020-10-14 08:42:34,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:42:34,368 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 67 [2020-10-14 08:42:34,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:42:34,383 INFO L225 Difference]: With dead ends: 2830 [2020-10-14 08:42:34,383 INFO L226 Difference]: Without dead ends: 2825 [2020-10-14 08:42:34,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2020-10-14 08:42:34,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2825 states. [2020-10-14 08:42:34,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2825 to 1147. [2020-10-14 08:42:34,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1147 states. [2020-10-14 08:42:34,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1640 transitions. [2020-10-14 08:42:34,501 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1640 transitions. Word has length 67 [2020-10-14 08:42:34,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:42:34,502 INFO L479 AbstractCegarLoop]: Abstraction has 1147 states and 1640 transitions. [2020-10-14 08:42:34,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:42:34,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1640 transitions. [2020-10-14 08:42:34,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 08:42:34,531 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:42:34,531 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] [2020-10-14 08:42:34,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:42:34,532 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:42:34,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:42:34,532 INFO L82 PathProgramCache]: Analyzing trace with hash -660837186, now seen corresponding path program 1 times [2020-10-14 08:42:34,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:42:34,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2133587116] [2020-10-14 08:42:34,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:42:34,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:42:34,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:34,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:34,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:34,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:34,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:34,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:35,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:35,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:35,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:35,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:36,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:37,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:37,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:37,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:37,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:37,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:37,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:38,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:38,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:39,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:42:39,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 08:42:39,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-14 08:42:39,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 08:42:39,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:42:39,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:42:39,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 08:42:39,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:42:39,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 08:42:39,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:42:39,891 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:42:39,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:42:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:42:39,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:39,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:42:39,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:42:39,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:42:39,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:42:39,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:42:39,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:42:39,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:42:39,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:42:39,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:42:39,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:42:39,919 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 08:42:39,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2133587116] [2020-10-14 08:42:39,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:42:39,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 08:42:39,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574945190] [2020-10-14 08:42:39,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 08:42:39,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:42:39,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 08:42:39,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:42:39,922 INFO L87 Difference]: Start difference. First operand 1147 states and 1640 transitions. Second operand 8 states. [2020-10-14 08:42:40,289 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-10-14 08:42:41,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:42:41,994 INFO L93 Difference]: Finished difference Result 3676 states and 5434 transitions. [2020-10-14 08:42:41,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 08:42:41,995 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-10-14 08:42:41,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:42:42,008 INFO L225 Difference]: With dead ends: 3676 [2020-10-14 08:42:42,008 INFO L226 Difference]: Without dead ends: 2857 [2020-10-14 08:42:42,011 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-14 08:42:42,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states. [2020-10-14 08:42:42,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 1147. [2020-10-14 08:42:42,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1147 states. [2020-10-14 08:42:42,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1639 transitions. [2020-10-14 08:42:42,125 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1639 transitions. Word has length 67 [2020-10-14 08:42:42,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:42:42,125 INFO L479 AbstractCegarLoop]: Abstraction has 1147 states and 1639 transitions. [2020-10-14 08:42:42,125 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 08:42:42,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1639 transitions. [2020-10-14 08:42:42,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 08:42:42,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:42:42,127 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] [2020-10-14 08:42:42,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 08:42:42,128 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:42:42,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:42:42,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1268319326, now seen corresponding path program 1 times [2020-10-14 08:42:42,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:42:42,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1078942124] [2020-10-14 08:42:42,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:42:42,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:42:42,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:42,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:42,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:42,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:42,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:42,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:42,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:43,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:43,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:44,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:44,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:44,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:45,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:47,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:42:47,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 08:42:47,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-14 08:42:47,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:42:47,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:42:47,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:42:47,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:42:47,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:42:47,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-14 08:42:47,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:42:47,516 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:42:47,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:42:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:42:47,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:47,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:42:47,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:42:47,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:42:47,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 08:42:47,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:42:47,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:42:47,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:42:47,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:42:47,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:42:47,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:42:47,564 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 08:42:47,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1078942124] [2020-10-14 08:42:47,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:42:47,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:42:47,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458620208] [2020-10-14 08:42:47,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:42:47,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:42:47,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:42:47,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:42:47,566 INFO L87 Difference]: Start difference. First operand 1147 states and 1639 transitions. Second operand 10 states. [2020-10-14 08:42:47,957 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-10-14 08:42:49,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:42:49,960 INFO L93 Difference]: Finished difference Result 4651 states and 6872 transitions. [2020-10-14 08:42:49,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:42:49,961 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 67 [2020-10-14 08:42:49,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:42:49,978 INFO L225 Difference]: With dead ends: 4651 [2020-10-14 08:42:49,978 INFO L226 Difference]: Without dead ends: 3820 [2020-10-14 08:42:49,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:42:49,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3820 states. [2020-10-14 08:42:50,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3820 to 1147. [2020-10-14 08:42:50,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1147 states. [2020-10-14 08:42:50,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1638 transitions. [2020-10-14 08:42:50,126 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1638 transitions. Word has length 67 [2020-10-14 08:42:50,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:42:50,126 INFO L479 AbstractCegarLoop]: Abstraction has 1147 states and 1638 transitions. [2020-10-14 08:42:50,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:42:50,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1638 transitions. [2020-10-14 08:42:50,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-14 08:42:50,128 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:42:50,128 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] [2020-10-14 08:42:50,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 08:42:50,129 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:42:50,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:42:50,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1736982527, now seen corresponding path program 1 times [2020-10-14 08:42:50,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:42:50,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1991192955] [2020-10-14 08:42:50,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:42:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:42:50,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:50,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:50,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:50,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:50,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:51,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:51,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:51,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:51,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:51,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:51,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:51,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:52,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:52,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:52,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:52,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:52,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:53,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:53,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:53,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:53,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:53,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:53,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:54,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:54,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:54,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:55,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:55,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:55,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:42:55,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 08:42:55,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 28 [2020-10-14 08:42:55,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 08:42:55,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:42:55,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:42:55,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:42:55,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:42:55,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 08:42:55,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:42:55,469 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:42:55,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:42:55,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:42:55,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:55,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:42:55,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:42:55,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:42:55,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:42:55,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:42:55,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:42:55,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:42:55,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:42:55,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:42:55,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:42:55,503 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 08:42:55,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1991192955] [2020-10-14 08:42:55,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:42:55,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:42:55,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800563567] [2020-10-14 08:42:55,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:42:55,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:42:55,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:42:55,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:42:55,505 INFO L87 Difference]: Start difference. First operand 1147 states and 1638 transitions. Second operand 6 states. [2020-10-14 08:42:55,834 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-10-14 08:42:57,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:42:57,081 INFO L93 Difference]: Finished difference Result 1595 states and 2293 transitions. [2020-10-14 08:42:57,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:42:57,082 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2020-10-14 08:42:57,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:42:57,085 INFO L225 Difference]: With dead ends: 1595 [2020-10-14 08:42:57,085 INFO L226 Difference]: Without dead ends: 858 [2020-10-14 08:42:57,087 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:42:57,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2020-10-14 08:42:57,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 652. [2020-10-14 08:42:57,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states. [2020-10-14 08:42:57,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 903 transitions. [2020-10-14 08:42:57,156 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 903 transitions. Word has length 68 [2020-10-14 08:42:57,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:42:57,157 INFO L479 AbstractCegarLoop]: Abstraction has 652 states and 903 transitions. [2020-10-14 08:42:57,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:42:57,157 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 903 transitions. [2020-10-14 08:42:57,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-14 08:42:57,158 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:42:57,158 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] [2020-10-14 08:42:57,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 08:42:57,158 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:42:57,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:42:57,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1385633157, now seen corresponding path program 1 times [2020-10-14 08:42:57,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:42:57,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [391753785] [2020-10-14 08:42:57,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:42:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:42:57,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:57,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:57,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:57,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:58,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:58,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:58,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:58,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:59,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:00,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:00,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:00,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:00,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:01,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:01,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:01,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:01,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:02,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:02,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 08:43:02,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-14 08:43:02,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 08:43:02,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:02,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:02,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:43:02,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:43:02,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 08:43:02,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:43:02,521 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:43:02,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:43:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:02,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:02,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:02,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:43:02,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:43:02,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:43:02,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:02,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:02,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:43:02,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:43:02,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:43:02,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:43:02,563 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 08:43:02,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [391753785] [2020-10-14 08:43:02,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:43:02,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:43:02,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715546391] [2020-10-14 08:43:02,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:43:02,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:43:02,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:43:02,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:43:02,565 INFO L87 Difference]: Start difference. First operand 652 states and 903 transitions. Second operand 10 states. [2020-10-14 08:43:02,915 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2020-10-14 08:43:04,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:43:04,863 INFO L93 Difference]: Finished difference Result 1531 states and 2191 transitions. [2020-10-14 08:43:04,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:43:04,863 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 69 [2020-10-14 08:43:04,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:43:04,868 INFO L225 Difference]: With dead ends: 1531 [2020-10-14 08:43:04,869 INFO L226 Difference]: Without dead ends: 1526 [2020-10-14 08:43:04,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:43:04,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1526 states. [2020-10-14 08:43:04,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1526 to 652. [2020-10-14 08:43:04,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states. [2020-10-14 08:43:04,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 902 transitions. [2020-10-14 08:43:04,937 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 902 transitions. Word has length 69 [2020-10-14 08:43:04,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:43:04,938 INFO L479 AbstractCegarLoop]: Abstraction has 652 states and 902 transitions. [2020-10-14 08:43:04,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:43:04,938 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 902 transitions. [2020-10-14 08:43:04,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-14 08:43:04,939 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:43:04,939 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] [2020-10-14 08:43:04,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 08:43:04,940 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:43:04,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:43:04,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1770681318, now seen corresponding path program 1 times [2020-10-14 08:43:04,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:43:04,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [485383203] [2020-10-14 08:43:04,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:43:04,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:04,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:05,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:05,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:05,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:05,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:05,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:05,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:05,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:06,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:06,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:06,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:06,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:07,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:08,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:09,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:09,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 08:43:09,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:43:09,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:43:09,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:09,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:09,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:43:09,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:43:09,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-14 08:43:09,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:43:10,313 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:43:10,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:43:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:10,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:10,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:10,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:43:10,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:43:10,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:43:10,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:10,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:10,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:43:10,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:43:10,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:43:10,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:43:10,350 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 08:43:10,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [485383203] [2020-10-14 08:43:10,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:43:10,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:43:10,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733311659] [2020-10-14 08:43:10,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:43:10,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:43:10,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:43:10,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:43:10,352 INFO L87 Difference]: Start difference. First operand 652 states and 902 transitions. Second operand 10 states. [2020-10-14 08:43:10,706 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2020-10-14 08:43:12,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:43:12,653 INFO L93 Difference]: Finished difference Result 2034 states and 2927 transitions. [2020-10-14 08:43:12,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:43:12,654 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 69 [2020-10-14 08:43:12,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:43:12,662 INFO L225 Difference]: With dead ends: 2034 [2020-10-14 08:43:12,663 INFO L226 Difference]: Without dead ends: 2017 [2020-10-14 08:43:12,664 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:43:12,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2017 states. [2020-10-14 08:43:12,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2017 to 652. [2020-10-14 08:43:12,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states. [2020-10-14 08:43:12,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 901 transitions. [2020-10-14 08:43:12,738 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 901 transitions. Word has length 69 [2020-10-14 08:43:12,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:43:12,738 INFO L479 AbstractCegarLoop]: Abstraction has 652 states and 901 transitions. [2020-10-14 08:43:12,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:43:12,738 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 901 transitions. [2020-10-14 08:43:12,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-14 08:43:12,739 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:43:12,739 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] [2020-10-14 08:43:12,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 08:43:12,740 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:43:12,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:43:12,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1664493892, now seen corresponding path program 1 times [2020-10-14 08:43:12,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:43:12,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [389082341] [2020-10-14 08:43:12,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:43:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:12,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:12,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:12,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:13,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:13,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:14,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:14,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:14,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:17,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:17,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 08:43:17,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:43:17,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:43:17,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:17,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:17,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:43:17,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:43:17,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 08:43:17,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:43:18,197 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:43:18,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:43:18,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:18,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:18,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:18,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:43:18,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:43:18,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:43:18,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:18,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:18,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:43:18,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:43:18,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:43:18,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:43:18,228 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 08:43:18,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [389082341] [2020-10-14 08:43:18,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:43:18,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:43:18,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631452125] [2020-10-14 08:43:18,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:43:18,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:43:18,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:43:18,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:43:18,230 INFO L87 Difference]: Start difference. First operand 652 states and 901 transitions. Second operand 9 states. [2020-10-14 08:43:18,611 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2020-10-14 08:43:20,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:43:20,148 INFO L93 Difference]: Finished difference Result 1304 states and 1860 transitions. [2020-10-14 08:43:20,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 08:43:20,149 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-10-14 08:43:20,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:43:20,157 INFO L225 Difference]: With dead ends: 1304 [2020-10-14 08:43:20,157 INFO L226 Difference]: Without dead ends: 894 [2020-10-14 08:43:20,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2020-10-14 08:43:20,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-10-14 08:43:20,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 648. [2020-10-14 08:43:20,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 648 states. [2020-10-14 08:43:20,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 896 transitions. [2020-10-14 08:43:20,228 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 896 transitions. Word has length 69 [2020-10-14 08:43:20,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:43:20,228 INFO L479 AbstractCegarLoop]: Abstraction has 648 states and 896 transitions. [2020-10-14 08:43:20,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:43:20,228 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 896 transitions. [2020-10-14 08:43:20,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-14 08:43:20,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:43:20,230 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] [2020-10-14 08:43:20,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 08:43:20,230 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:43:20,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:43:20,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1908064838, now seen corresponding path program 1 times [2020-10-14 08:43:20,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:43:20,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1178834851] [2020-10-14 08:43:20,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:43:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:20,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:20,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:20,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:20,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:21,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:21,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:21,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:21,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:22,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:22,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:22,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:22,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:22,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:23,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:23,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:23,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:24,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:24,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:25,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:25,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 08:43:25,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-14 08:43:25,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 08:43:25,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:25,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:25,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:43:25,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:43:25,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 08:43:25,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:43:25,636 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:43:25,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:43:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:25,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:25,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:25,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:43:25,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:43:25,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:43:25,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:25,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:25,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:43:25,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:43:25,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:43:25,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:43:25,698 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 08:43:25,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1178834851] [2020-10-14 08:43:25,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:43:25,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:43:25,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389867356] [2020-10-14 08:43:25,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:43:25,700 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:43:25,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:43:25,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:43:25,700 INFO L87 Difference]: Start difference. First operand 648 states and 896 transitions. Second operand 10 states. [2020-10-14 08:43:26,055 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2020-10-14 08:43:27,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:43:27,926 INFO L93 Difference]: Finished difference Result 2427 states and 3524 transitions. [2020-10-14 08:43:27,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:43:27,927 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 69 [2020-10-14 08:43:27,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:43:27,932 INFO L225 Difference]: With dead ends: 2427 [2020-10-14 08:43:27,932 INFO L226 Difference]: Without dead ends: 2009 [2020-10-14 08:43:27,934 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:43:27,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2009 states. [2020-10-14 08:43:28,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2009 to 648. [2020-10-14 08:43:28,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 648 states. [2020-10-14 08:43:28,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 895 transitions. [2020-10-14 08:43:28,030 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 895 transitions. Word has length 69 [2020-10-14 08:43:28,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:43:28,031 INFO L479 AbstractCegarLoop]: Abstraction has 648 states and 895 transitions. [2020-10-14 08:43:28,031 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:43:28,031 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 895 transitions. [2020-10-14 08:43:28,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-14 08:43:28,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:43:28,032 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] [2020-10-14 08:43:28,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 08:43:28,032 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:43:28,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:43:28,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1102682268, now seen corresponding path program 1 times [2020-10-14 08:43:28,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:43:28,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [931781840] [2020-10-14 08:43:28,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:43:28,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:28,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:28,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:28,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:28,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:28,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:28,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:31,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:31,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:31,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:31,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:32,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:32,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:32,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:32,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:32,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:32,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:32,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:32,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:33,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:33,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:33,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 08:43:33,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-14 08:43:33,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-14 08:43:33,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:33,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:33,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:43:33,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:43:33,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 08:43:33,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:43:33,437 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:43:33,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:43:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:33,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:33,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:33,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:43:33,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:43:33,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:43:33,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:33,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:33,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:43:33,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:43:33,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:43:33,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:43:33,483 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 08:43:33,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [931781840] [2020-10-14 08:43:33,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:43:33,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:43:33,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196819500] [2020-10-14 08:43:33,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:43:33,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:43:33,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:43:33,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:43:33,485 INFO L87 Difference]: Start difference. First operand 648 states and 895 transitions. Second operand 10 states. [2020-10-14 08:43:33,853 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2020-10-14 08:43:35,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:43:35,967 INFO L93 Difference]: Finished difference Result 1930 states and 2794 transitions. [2020-10-14 08:43:35,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:43:35,968 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 69 [2020-10-14 08:43:35,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:43:35,971 INFO L225 Difference]: With dead ends: 1930 [2020-10-14 08:43:35,971 INFO L226 Difference]: Without dead ends: 1522 [2020-10-14 08:43:35,972 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:43:35,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1522 states. [2020-10-14 08:43:36,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1522 to 648. [2020-10-14 08:43:36,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 648 states. [2020-10-14 08:43:36,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 894 transitions. [2020-10-14 08:43:36,042 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 894 transitions. Word has length 69 [2020-10-14 08:43:36,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:43:36,042 INFO L479 AbstractCegarLoop]: Abstraction has 648 states and 894 transitions. [2020-10-14 08:43:36,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:43:36,043 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 894 transitions. [2020-10-14 08:43:36,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-14 08:43:36,043 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:43:36,044 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] [2020-10-14 08:43:36,044 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 08:43:36,044 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:43:36,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:43:36,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1951682407, now seen corresponding path program 1 times [2020-10-14 08:43:36,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:43:36,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1074783739] [2020-10-14 08:43:36,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:43:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:36,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:36,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:36,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:36,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:36,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:36,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:36,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:36,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:37,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:37,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:38,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:38,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:38,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:39,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:39,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:39,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:40,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:41,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:41,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 08:43:41,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-14 08:43:41,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 08:43:41,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:41,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:41,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:43:41,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:43:41,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 08:43:41,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:43:41,522 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:43:41,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:43:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:41,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:41,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:41,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:43:41,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:43:41,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:43:41,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:41,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:41,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:43:41,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:43:41,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:43:41,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:43:41,553 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 08:43:41,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1074783739] [2020-10-14 08:43:41,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:43:41,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:43:41,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269571233] [2020-10-14 08:43:41,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:43:41,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:43:41,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:43:41,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:43:41,555 INFO L87 Difference]: Start difference. First operand 648 states and 894 transitions. Second operand 9 states. [2020-10-14 08:43:41,938 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2020-10-14 08:43:43,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:43:43,471 INFO L93 Difference]: Finished difference Result 1298 states and 1852 transitions. [2020-10-14 08:43:43,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:43:43,471 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-10-14 08:43:43,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:43:43,473 INFO L225 Difference]: With dead ends: 1298 [2020-10-14 08:43:43,473 INFO L226 Difference]: Without dead ends: 886 [2020-10-14 08:43:43,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2020-10-14 08:43:43,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2020-10-14 08:43:43,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 636. [2020-10-14 08:43:43,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 636 states. [2020-10-14 08:43:43,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 877 transitions. [2020-10-14 08:43:43,564 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 877 transitions. Word has length 69 [2020-10-14 08:43:43,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:43:43,564 INFO L479 AbstractCegarLoop]: Abstraction has 636 states and 877 transitions. [2020-10-14 08:43:43,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:43:43,564 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 877 transitions. [2020-10-14 08:43:43,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-14 08:43:43,565 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:43:43,565 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] [2020-10-14 08:43:43,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 08:43:43,566 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:43:43,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:43:43,566 INFO L82 PathProgramCache]: Analyzing trace with hash -384929470, now seen corresponding path program 1 times [2020-10-14 08:43:43,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:43:43,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [991529515] [2020-10-14 08:43:43,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:43:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:43,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:43,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:43,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:43,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:43,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:43,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:44,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:44,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:45,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:45,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:45,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:48,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:48,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 08:43:48,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 08:43:48,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 08:43:48,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:48,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:48,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:43:48,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:43:48,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-14 08:43:48,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:43:48,940 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:43:48,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:43:48,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:48,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:48,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:48,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:43:48,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:43:48,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:43:48,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:48,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:48,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:43:48,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:43:48,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:43:48,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:43:48,977 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 08:43:48,977 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [991529515] [2020-10-14 08:43:48,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:43:48,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:43:48,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791098891] [2020-10-14 08:43:48,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:43:48,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:43:48,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:43:48,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:43:48,979 INFO L87 Difference]: Start difference. First operand 636 states and 877 transitions. Second operand 10 states. [2020-10-14 08:43:49,342 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-10-14 08:43:51,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:43:51,643 INFO L93 Difference]: Finished difference Result 2504 states and 3682 transitions. [2020-10-14 08:43:51,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 08:43:51,644 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 69 [2020-10-14 08:43:51,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:43:51,648 INFO L225 Difference]: With dead ends: 2504 [2020-10-14 08:43:51,648 INFO L226 Difference]: Without dead ends: 2064 [2020-10-14 08:43:51,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2020-10-14 08:43:51,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2064 states. [2020-10-14 08:43:51,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2064 to 636. [2020-10-14 08:43:51,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 636 states. [2020-10-14 08:43:51,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 876 transitions. [2020-10-14 08:43:51,774 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 876 transitions. Word has length 69 [2020-10-14 08:43:51,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:43:51,775 INFO L479 AbstractCegarLoop]: Abstraction has 636 states and 876 transitions. [2020-10-14 08:43:51,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:43:51,775 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 876 transitions. [2020-10-14 08:43:51,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-14 08:43:51,777 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:43:51,777 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] [2020-10-14 08:43:51,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 08:43:51,778 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:43:51,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:43:51,778 INFO L82 PathProgramCache]: Analyzing trace with hash -994428397, now seen corresponding path program 1 times [2020-10-14 08:43:51,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:43:51,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [237983820] [2020-10-14 08:43:51,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:43:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:51,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:51,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:52,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:52,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:52,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:53,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:53,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:53,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:53,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:53,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:53,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:54,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:56,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:56,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 08:43:56,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 08:43:56,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 08:43:56,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:56,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:56,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:43:56,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:43:56,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 08:43:56,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:43:57,156 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:43:57,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:43:57,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:57,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:57,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:57,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:43:57,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:43:57,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:43:57,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:57,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:57,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:43:57,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:43:57,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:43:57,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:43:57,213 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 08:43:57,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [237983820] [2020-10-14 08:43:57,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:43:57,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:43:57,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937700159] [2020-10-14 08:43:57,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:43:57,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:43:57,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:43:57,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:43:57,215 INFO L87 Difference]: Start difference. First operand 636 states and 876 transitions. Second operand 10 states. [2020-10-14 08:43:57,546 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2020-10-14 08:43:59,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:43:59,113 INFO L93 Difference]: Finished difference Result 901 states and 1243 transitions. [2020-10-14 08:43:59,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:43:59,114 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 70 [2020-10-14 08:43:59,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:43:59,115 INFO L225 Difference]: With dead ends: 901 [2020-10-14 08:43:59,115 INFO L226 Difference]: Without dead ends: 894 [2020-10-14 08:43:59,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2020-10-14 08:43:59,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-10-14 08:43:59,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 636. [2020-10-14 08:43:59,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 636 states. [2020-10-14 08:43:59,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 875 transitions. [2020-10-14 08:43:59,208 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 875 transitions. Word has length 70 [2020-10-14 08:43:59,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:43:59,208 INFO L479 AbstractCegarLoop]: Abstraction has 636 states and 875 transitions. [2020-10-14 08:43:59,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:43:59,208 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 875 transitions. [2020-10-14 08:43:59,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-14 08:43:59,209 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:43:59,209 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] [2020-10-14 08:43:59,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 08:43:59,210 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:43:59,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:43:59,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1808706380, now seen corresponding path program 1 times [2020-10-14 08:43:59,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:43:59,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1703653304] [2020-10-14 08:43:59,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:43:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:59,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:59,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:59,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:59,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:59,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:59,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:00,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:01,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:04,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:04,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 08:44:04,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:44:04,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 08:44:04,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:04,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:04,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:44:04,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:44:04,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 08:44:04,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:04,587 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:44:04,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:44:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:04,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:04,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:04,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:44:04,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:44:04,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:44:04,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:04,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:04,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:44:04,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:44:04,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:44:04,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:04,628 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 08:44:04,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1703653304] [2020-10-14 08:44:04,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:44:04,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:44:04,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376989656] [2020-10-14 08:44:04,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:44:04,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:44:04,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:44:04,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:44:04,630 INFO L87 Difference]: Start difference. First operand 636 states and 875 transitions. Second operand 10 states. [2020-10-14 08:44:04,984 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2020-10-14 08:44:07,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:44:07,036 INFO L93 Difference]: Finished difference Result 2416 states and 3499 transitions. [2020-10-14 08:44:07,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:44:07,037 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 70 [2020-10-14 08:44:07,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:44:07,041 INFO L225 Difference]: With dead ends: 2416 [2020-10-14 08:44:07,041 INFO L226 Difference]: Without dead ends: 1985 [2020-10-14 08:44:07,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:44:07,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985 states. [2020-10-14 08:44:07,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985 to 636. [2020-10-14 08:44:07,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 636 states. [2020-10-14 08:44:07,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 874 transitions. [2020-10-14 08:44:07,174 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 874 transitions. Word has length 70 [2020-10-14 08:44:07,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:44:07,175 INFO L479 AbstractCegarLoop]: Abstraction has 636 states and 874 transitions. [2020-10-14 08:44:07,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:44:07,175 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 874 transitions. [2020-10-14 08:44:07,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-14 08:44:07,176 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:44:07,176 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] [2020-10-14 08:44:07,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 08:44:07,177 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:44:07,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:44:07,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1152479625, now seen corresponding path program 1 times [2020-10-14 08:44:07,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:44:07,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1859811928] [2020-10-14 08:44:07,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:44:07,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:07,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:07,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:07,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:07,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:07,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:08,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:10,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:10,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 08:44:10,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:44:10,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3255 [2020-10-14 08:44:10,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:10,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:10,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:44:10,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:44:10,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 08:44:10,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:10,841 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:44:10,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:44:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:10,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:10,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:10,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:44:10,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:44:10,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:44:10,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:10,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:10,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:44:10,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:44:10,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:44:10,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:10,867 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 08:44:10,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1859811928] [2020-10-14 08:44:10,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:44:10,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:44:10,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213729675] [2020-10-14 08:44:10,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:44:10,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:44:10,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:44:10,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:44:10,869 INFO L87 Difference]: Start difference. First operand 636 states and 874 transitions. Second operand 9 states. [2020-10-14 08:44:11,176 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-10-14 08:44:12,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:44:12,706 INFO L93 Difference]: Finished difference Result 882 states and 1224 transitions. [2020-10-14 08:44:12,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:44:12,706 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-10-14 08:44:12,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:44:12,708 INFO L225 Difference]: With dead ends: 882 [2020-10-14 08:44:12,709 INFO L226 Difference]: Without dead ends: 878 [2020-10-14 08:44:12,709 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-10-14 08:44:12,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2020-10-14 08:44:12,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 632. [2020-10-14 08:44:12,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 632 states. [2020-10-14 08:44:12,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 870 transitions. [2020-10-14 08:44:12,860 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 870 transitions. Word has length 71 [2020-10-14 08:44:12,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:44:12,860 INFO L479 AbstractCegarLoop]: Abstraction has 632 states and 870 transitions. [2020-10-14 08:44:12,860 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:44:12,860 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 870 transitions. [2020-10-14 08:44:12,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-14 08:44:12,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:44:12,861 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] [2020-10-14 08:44:12,862 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 08:44:12,862 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:44:12,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:44:12,862 INFO L82 PathProgramCache]: Analyzing trace with hash 202791775, now seen corresponding path program 1 times [2020-10-14 08:44:12,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:44:12,863 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2077804957] [2020-10-14 08:44:12,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:44:12,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:12,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:12,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:13,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:13,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:13,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:13,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:13,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:13,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:13,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:14,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:15,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:16,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:16,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:17,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:17,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:17,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 08:44:17,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:44:17,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 08:44:17,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:17,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:17,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:44:17,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:44:17,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-14 08:44:17,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:18,244 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:44:18,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:44:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:18,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:18,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:18,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:44:18,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:44:18,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:44:18,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:18,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:18,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:44:18,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:44:18,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:44:18,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:18,272 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 08:44:18,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2077804957] [2020-10-14 08:44:18,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:44:18,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:44:18,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953246867] [2020-10-14 08:44:18,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:44:18,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:44:18,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:44:18,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:44:18,274 INFO L87 Difference]: Start difference. First operand 632 states and 870 transitions. Second operand 9 states. [2020-10-14 08:44:18,606 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-10-14 08:44:20,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:44:20,318 INFO L93 Difference]: Finished difference Result 1284 states and 1832 transitions. [2020-10-14 08:44:20,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 08:44:20,319 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-10-14 08:44:20,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:44:20,322 INFO L225 Difference]: With dead ends: 1284 [2020-10-14 08:44:20,322 INFO L226 Difference]: Without dead ends: 877 [2020-10-14 08:44:20,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2020-10-14 08:44:20,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2020-10-14 08:44:20,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 631. [2020-10-14 08:44:20,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2020-10-14 08:44:20,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 868 transitions. [2020-10-14 08:44:20,431 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 868 transitions. Word has length 71 [2020-10-14 08:44:20,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:44:20,431 INFO L479 AbstractCegarLoop]: Abstraction has 631 states and 868 transitions. [2020-10-14 08:44:20,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:44:20,431 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 868 transitions. [2020-10-14 08:44:20,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-14 08:44:20,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:44:20,432 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] [2020-10-14 08:44:20,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 08:44:20,433 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:44:20,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:44:20,433 INFO L82 PathProgramCache]: Analyzing trace with hash -241656192, now seen corresponding path program 1 times [2020-10-14 08:44:20,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:44:20,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [545779942] [2020-10-14 08:44:20,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:44:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:20,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:20,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:20,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:20,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:21,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:21,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:21,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:22,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:24,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:24,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 08:44:24,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:44:24,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4259 [2020-10-14 08:44:24,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:24,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:24,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:44:24,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:44:24,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 08:44:24,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:25,070 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:44:25,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:44:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:25,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:25,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:25,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:44:25,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:44:25,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:44:25,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:25,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:25,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:44:25,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:44:25,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:44:25,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:25,100 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 08:44:25,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [545779942] [2020-10-14 08:44:25,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:44:25,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:44:25,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168747096] [2020-10-14 08:44:25,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:44:25,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:44:25,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:44:25,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:44:25,102 INFO L87 Difference]: Start difference. First operand 631 states and 868 transitions. Second operand 9 states. [2020-10-14 08:44:25,432 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-10-14 08:44:26,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:44:26,874 INFO L93 Difference]: Finished difference Result 1136 states and 1593 transitions. [2020-10-14 08:44:26,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 08:44:26,875 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-10-14 08:44:26,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:44:26,878 INFO L225 Difference]: With dead ends: 1136 [2020-10-14 08:44:26,878 INFO L226 Difference]: Without dead ends: 1126 [2020-10-14 08:44:26,879 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2020-10-14 08:44:26,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2020-10-14 08:44:27,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 621. [2020-10-14 08:44:27,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 621 states. [2020-10-14 08:44:27,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 857 transitions. [2020-10-14 08:44:27,013 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 857 transitions. Word has length 71 [2020-10-14 08:44:27,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:44:27,013 INFO L479 AbstractCegarLoop]: Abstraction has 621 states and 857 transitions. [2020-10-14 08:44:27,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:44:27,013 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 857 transitions. [2020-10-14 08:44:27,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-14 08:44:27,014 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:44:27,015 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] [2020-10-14 08:44:27,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 08:44:27,015 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:44:27,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:44:27,015 INFO L82 PathProgramCache]: Analyzing trace with hash 199822228, now seen corresponding path program 1 times [2020-10-14 08:44:27,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:44:27,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1744190806] [2020-10-14 08:44:27,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:44:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:27,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:27,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:27,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:27,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:27,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:28,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:29,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:29,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 08:44:29,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:44:29,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2900 [2020-10-14 08:44:29,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:29,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:29,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:44:29,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:44:29,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 08:44:29,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:30,294 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:44:30,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:44:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:30,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:30,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:30,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:44:30,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:44:30,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:44:30,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:30,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:30,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:44:30,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:44:30,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:44:30,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:30,319 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 08:44:30,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1744190806] [2020-10-14 08:44:30,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:44:30,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:44:30,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142584400] [2020-10-14 08:44:30,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:44:30,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:44:30,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:44:30,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:44:30,320 INFO L87 Difference]: Start difference. First operand 621 states and 857 transitions. Second operand 9 states. [2020-10-14 08:44:30,635 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-10-14 08:44:31,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:44:31,838 INFO L93 Difference]: Finished difference Result 1517 states and 2177 transitions. [2020-10-14 08:44:31,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:44:31,838 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-10-14 08:44:31,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:44:31,839 INFO L225 Difference]: With dead ends: 1517 [2020-10-14 08:44:31,840 INFO L226 Difference]: Without dead ends: 1096 [2020-10-14 08:44:31,840 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2020-10-14 08:44:31,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2020-10-14 08:44:31,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 606. [2020-10-14 08:44:31,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 606 states. [2020-10-14 08:44:31,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 838 transitions. [2020-10-14 08:44:31,931 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 838 transitions. Word has length 71 [2020-10-14 08:44:31,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:44:31,931 INFO L479 AbstractCegarLoop]: Abstraction has 606 states and 838 transitions. [2020-10-14 08:44:31,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:44:31,931 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 838 transitions. [2020-10-14 08:44:31,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-14 08:44:31,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:44:31,932 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] [2020-10-14 08:44:31,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 08:44:31,933 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:44:31,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:44:31,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1764122422, now seen corresponding path program 1 times [2020-10-14 08:44:31,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:44:31,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [603896891] [2020-10-14 08:44:31,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:44:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:31,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:32,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:32,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:32,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:32,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:32,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:32,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:33,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:33,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:33,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:34,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:34,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:34,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:35,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:36,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:36,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 08:44:36,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:44:36,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 08:44:36,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:36,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:36,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:44:36,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:44:36,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-14 08:44:36,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:37,386 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:44:37,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:44:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:37,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:37,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:37,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:44:37,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:44:37,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:44:37,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:37,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:37,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:44:37,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:44:37,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:44:37,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:37,418 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 08:44:37,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [603896891] [2020-10-14 08:44:37,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:44:37,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:44:37,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890888512] [2020-10-14 08:44:37,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:44:37,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:44:37,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:44:37,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:44:37,419 INFO L87 Difference]: Start difference. First operand 606 states and 838 transitions. Second operand 9 states. [2020-10-14 08:44:37,830 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-14 08:44:39,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:44:39,649 INFO L93 Difference]: Finished difference Result 2314 states and 3383 transitions. [2020-10-14 08:44:39,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:44:39,650 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-10-14 08:44:39,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:44:39,652 INFO L225 Difference]: With dead ends: 2314 [2020-10-14 08:44:39,652 INFO L226 Difference]: Without dead ends: 1898 [2020-10-14 08:44:39,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2020-10-14 08:44:39,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1898 states. [2020-10-14 08:44:39,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1898 to 596. [2020-10-14 08:44:39,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2020-10-14 08:44:39,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 825 transitions. [2020-10-14 08:44:39,816 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 825 transitions. Word has length 71 [2020-10-14 08:44:39,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:44:39,816 INFO L479 AbstractCegarLoop]: Abstraction has 596 states and 825 transitions. [2020-10-14 08:44:39,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:44:39,817 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 825 transitions. [2020-10-14 08:44:39,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-14 08:44:39,818 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:44:39,818 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] [2020-10-14 08:44:39,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 08:44:39,818 INFO L427 AbstractCegarLoop]: === Iteration 25 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:44:39,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:44:39,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1408343975, now seen corresponding path program 1 times [2020-10-14 08:44:39,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:44:39,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1716613170] [2020-10-14 08:44:39,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:44:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:39,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:39,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:39,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:40,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:40,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:40,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:40,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:40,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:41,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:41,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:42,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:43,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:43,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:43,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:44,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:44,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 08:44:44,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:44:44,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 08:44:44,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:44,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:44,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:44:44,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:44:44,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-14 08:44:44,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:45,432 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:44:45,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:44:45,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:45,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:45,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:45,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:44:45,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:44:45,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:44:45,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:45,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:45,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:44:45,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:44:45,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:44:45,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:44:45,498 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 08:44:45,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1716613170] [2020-10-14 08:44:45,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:44:45,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:44:45,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357268192] [2020-10-14 08:44:45,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:44:45,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:44:45,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:44:45,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:44:45,501 INFO L87 Difference]: Start difference. First operand 596 states and 825 transitions. Second operand 9 states. [2020-10-14 08:44:45,912 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 08:44:47,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:44:47,508 INFO L93 Difference]: Finished difference Result 1248 states and 1787 transitions. [2020-10-14 08:44:47,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:44:47,509 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-10-14 08:44:47,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:44:47,510 INFO L225 Difference]: With dead ends: 1248 [2020-10-14 08:44:47,510 INFO L226 Difference]: Without dead ends: 840 [2020-10-14 08:44:47,511 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2020-10-14 08:44:47,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2020-10-14 08:44:47,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 588. [2020-10-14 08:44:47,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 588 states. [2020-10-14 08:44:47,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 814 transitions. [2020-10-14 08:44:47,604 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 814 transitions. Word has length 71 [2020-10-14 08:44:47,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:44:47,604 INFO L479 AbstractCegarLoop]: Abstraction has 588 states and 814 transitions. [2020-10-14 08:44:47,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:44:47,604 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 814 transitions. [2020-10-14 08:44:47,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-14 08:44:47,605 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:44:47,605 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] [2020-10-14 08:44:47,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 08:44:47,605 INFO L427 AbstractCegarLoop]: === Iteration 26 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:44:47,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:44:47,605 INFO L82 PathProgramCache]: Analyzing trace with hash 964086664, now seen corresponding path program 1 times [2020-10-14 08:44:47,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:44:47,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1289478017] [2020-10-14 08:44:47,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:44:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:47,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:47,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:47,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:47,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:48,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:48,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:48,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:49,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:50,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:51,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 08:44:51,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:44:51,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3375 [2020-10-14 08:44:51,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:51,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:51,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:44:51,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:44:51,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 08:44:51,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:51,441 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:44:51,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:44:51,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:51,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:51,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:51,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:44:51,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:44:51,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:44:51,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:51,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:51,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:44:51,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:44:51,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:44:51,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:51,485 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 08:44:51,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1289478017] [2020-10-14 08:44:51,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:44:51,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:44:51,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925914363] [2020-10-14 08:44:51,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:44:51,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:44:51,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:44:51,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:44:51,487 INFO L87 Difference]: Start difference. First operand 588 states and 814 transitions. Second operand 9 states. [2020-10-14 08:44:52,276 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 236 [2020-10-14 08:44:53,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:44:53,445 INFO L93 Difference]: Finished difference Result 588 states and 814 transitions. [2020-10-14 08:44:53,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 08:44:53,445 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-10-14 08:44:53,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:44:53,446 INFO L225 Difference]: With dead ends: 588 [2020-10-14 08:44:53,446 INFO L226 Difference]: Without dead ends: 572 [2020-10-14 08:44:53,447 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2020-10-14 08:44:53,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2020-10-14 08:44:53,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2020-10-14 08:44:53,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2020-10-14 08:44:53,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 796 transitions. [2020-10-14 08:44:53,534 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 796 transitions. Word has length 71 [2020-10-14 08:44:53,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:44:53,534 INFO L479 AbstractCegarLoop]: Abstraction has 572 states and 796 transitions. [2020-10-14 08:44:53,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:44:53,535 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 796 transitions. [2020-10-14 08:44:53,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-14 08:44:53,535 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:44:53,535 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] [2020-10-14 08:44:53,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-14 08:44:53,536 INFO L427 AbstractCegarLoop]: === Iteration 27 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:44:53,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:44:53,536 INFO L82 PathProgramCache]: Analyzing trace with hash 986202184, now seen corresponding path program 1 times [2020-10-14 08:44:53,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:44:53,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593990024] [2020-10-14 08:44:53,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:44:53,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:53,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:53,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:53,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:53,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:54,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:54,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:57,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:57,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-14 08:44:57,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:44:57,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3768 [2020-10-14 08:44:57,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:57,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:57,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:44:57,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:44:57,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 08:44:57,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:57,689 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:44:57,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:44:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:57,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:57,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:57,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:44:57,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:44:57,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:44:57,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:57,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:57,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:44:57,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:44:57,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:44:57,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:57,730 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 08:44:57,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593990024] [2020-10-14 08:44:57,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:44:57,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:44:57,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712449671] [2020-10-14 08:44:57,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:44:57,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:44:57,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:44:57,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:44:57,733 INFO L87 Difference]: Start difference. First operand 572 states and 796 transitions. Second operand 10 states. [2020-10-14 08:44:58,115 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2020-10-14 08:44:59,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:44:59,844 INFO L93 Difference]: Finished difference Result 827 states and 1154 transitions. [2020-10-14 08:44:59,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 08:44:59,844 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 72 [2020-10-14 08:44:59,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:44:59,845 INFO L225 Difference]: With dead ends: 827 [2020-10-14 08:44:59,845 INFO L226 Difference]: Without dead ends: 820 [2020-10-14 08:44:59,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2020-10-14 08:44:59,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2020-10-14 08:44:59,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 572. [2020-10-14 08:44:59,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2020-10-14 08:44:59,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 795 transitions. [2020-10-14 08:44:59,988 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 795 transitions. Word has length 72 [2020-10-14 08:44:59,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:44:59,989 INFO L479 AbstractCegarLoop]: Abstraction has 572 states and 795 transitions. [2020-10-14 08:44:59,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:44:59,989 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 795 transitions. [2020-10-14 08:44:59,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-14 08:44:59,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:44:59,990 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] [2020-10-14 08:44:59,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-14 08:44:59,990 INFO L427 AbstractCegarLoop]: === Iteration 28 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:44:59,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:44:59,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1081144458, now seen corresponding path program 1 times [2020-10-14 08:44:59,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:44:59,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1507219785] [2020-10-14 08:44:59,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:45:00,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:00,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:00,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:00,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:00,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:00,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:00,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:02,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:02,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-14 08:45:02,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:45:02,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2681 [2020-10-14 08:45:02,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:02,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:02,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:45:02,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:45:02,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-14 08:45:02,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:03,187 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:45:03,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:45:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:03,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:03,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:03,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:45:03,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:45:03,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:45:03,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:03,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:03,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:45:03,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:45:03,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:45:03,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:03,221 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 08:45:03,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1507219785] [2020-10-14 08:45:03,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:45:03,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:45:03,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702834999] [2020-10-14 08:45:03,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:45:03,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:45:03,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:45:03,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:45:03,223 INFO L87 Difference]: Start difference. First operand 572 states and 795 transitions. Second operand 9 states. [2020-10-14 08:45:03,701 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-14 08:45:05,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:45:05,510 INFO L93 Difference]: Finished difference Result 806 states and 1133 transitions. [2020-10-14 08:45:05,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:45:05,510 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 72 [2020-10-14 08:45:05,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:45:05,512 INFO L225 Difference]: With dead ends: 806 [2020-10-14 08:45:05,512 INFO L226 Difference]: Without dead ends: 800 [2020-10-14 08:45:05,512 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2020-10-14 08:45:05,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2020-10-14 08:45:05,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 566. [2020-10-14 08:45:05,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2020-10-14 08:45:05,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 788 transitions. [2020-10-14 08:45:05,606 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 788 transitions. Word has length 72 [2020-10-14 08:45:05,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:45:05,607 INFO L479 AbstractCegarLoop]: Abstraction has 566 states and 788 transitions. [2020-10-14 08:45:05,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:45:05,607 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 788 transitions. [2020-10-14 08:45:05,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-14 08:45:05,607 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:45:05,608 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] [2020-10-14 08:45:05,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-14 08:45:05,608 INFO L427 AbstractCegarLoop]: === Iteration 29 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:45:05,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:45:05,608 INFO L82 PathProgramCache]: Analyzing trace with hash -483666518, now seen corresponding path program 1 times [2020-10-14 08:45:05,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:45:05,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1132058376] [2020-10-14 08:45:05,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:45:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:05,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:05,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:05,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:06,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:06,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:08,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:08,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-14 08:45:08,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:45:08,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2427 [2020-10-14 08:45:08,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:08,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:08,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:45:08,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:45:08,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 08:45:08,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:08,403 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:45:08,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:45:08,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:08,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:08,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:08,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:45:08,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:45:08,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:45:08,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:08,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:08,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:45:08,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:45:08,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:45:08,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:08,443 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 08:45:08,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1132058376] [2020-10-14 08:45:08,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:45:08,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:45:08,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27838747] [2020-10-14 08:45:08,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:45:08,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:45:08,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:45:08,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:45:08,444 INFO L87 Difference]: Start difference. First operand 566 states and 788 transitions. Second operand 10 states. [2020-10-14 08:45:08,806 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2020-10-14 08:45:09,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:45:09,925 INFO L93 Difference]: Finished difference Result 1033 states and 1468 transitions. [2020-10-14 08:45:09,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:45:09,926 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 72 [2020-10-14 08:45:09,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:45:09,927 INFO L225 Difference]: With dead ends: 1033 [2020-10-14 08:45:09,927 INFO L226 Difference]: Without dead ends: 570 [2020-10-14 08:45:09,928 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2020-10-14 08:45:09,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-10-14 08:45:10,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 566. [2020-10-14 08:45:10,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2020-10-14 08:45:10,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 787 transitions. [2020-10-14 08:45:10,022 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 787 transitions. Word has length 72 [2020-10-14 08:45:10,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:45:10,023 INFO L479 AbstractCegarLoop]: Abstraction has 566 states and 787 transitions. [2020-10-14 08:45:10,023 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:45:10,023 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 787 transitions. [2020-10-14 08:45:10,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-14 08:45:10,023 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:45:10,023 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] [2020-10-14 08:45:10,024 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-14 08:45:10,024 INFO L427 AbstractCegarLoop]: === Iteration 30 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:45:10,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:45:10,024 INFO L82 PathProgramCache]: Analyzing trace with hash -479310312, now seen corresponding path program 1 times [2020-10-14 08:45:10,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:45:10,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [407904388] [2020-10-14 08:45:10,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:45:10,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:10,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:10,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:10,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:10,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:10,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:12,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:12,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-14 08:45:12,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:45:12,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2122 [2020-10-14 08:45:12,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:12,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:12,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:45:12,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:45:12,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 08:45:12,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:12,502 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:45:12,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:45:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:12,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:12,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:12,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:45:12,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:45:12,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:45:12,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:12,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:12,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:45:12,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:45:12,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:45:12,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:12,540 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 08:45:12,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [407904388] [2020-10-14 08:45:12,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:45:12,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:45:12,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100514527] [2020-10-14 08:45:12,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:45:12,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:45:12,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:45:12,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:45:12,542 INFO L87 Difference]: Start difference. First operand 566 states and 787 transitions. Second operand 10 states. [2020-10-14 08:45:12,904 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2020-10-14 08:45:14,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:45:14,651 INFO L93 Difference]: Finished difference Result 815 states and 1139 transitions. [2020-10-14 08:45:14,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 08:45:14,652 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 72 [2020-10-14 08:45:14,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:45:14,653 INFO L225 Difference]: With dead ends: 815 [2020-10-14 08:45:14,653 INFO L226 Difference]: Without dead ends: 808 [2020-10-14 08:45:14,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2020-10-14 08:45:14,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2020-10-14 08:45:14,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 566. [2020-10-14 08:45:14,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2020-10-14 08:45:14,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 786 transitions. [2020-10-14 08:45:14,755 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 786 transitions. Word has length 72 [2020-10-14 08:45:14,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:45:14,755 INFO L479 AbstractCegarLoop]: Abstraction has 566 states and 786 transitions. [2020-10-14 08:45:14,755 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:45:14,755 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 786 transitions. [2020-10-14 08:45:14,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-14 08:45:14,756 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:45:14,756 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] [2020-10-14 08:45:14,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-14 08:45:14,756 INFO L427 AbstractCegarLoop]: === Iteration 31 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:45:14,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:45:14,756 INFO L82 PathProgramCache]: Analyzing trace with hash -578488209, now seen corresponding path program 1 times [2020-10-14 08:45:14,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:45:14,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1013383913] [2020-10-14 08:45:14,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:45:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:14,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:14,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:15,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:15,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:16,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:16,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 08:45:16,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 08:45:16,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1337 [2020-10-14 08:45:16,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:16,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:16,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:45:16,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:45:16,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 08:45:16,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:16,550 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-14 08:45:16,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:45:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:16,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:16,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:16,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:45:16,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:45:16,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:45:16,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:16,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:16,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:45:16,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:45:16,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:45:16,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:16,577 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 08:45:16,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1013383913] [2020-10-14 08:45:16,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:45:16,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:45:16,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624908569] [2020-10-14 08:45:16,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:45:16,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:45:16,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:45:16,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:45:16,579 INFO L87 Difference]: Start difference. First operand 566 states and 786 transitions. Second operand 9 states. [2020-10-14 08:45:16,908 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-10-14 08:45:18,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:45:18,488 INFO L93 Difference]: Finished difference Result 1038 states and 1472 transitions. [2020-10-14 08:45:18,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:45:18,488 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 74 [2020-10-14 08:45:18,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:45:18,490 INFO L225 Difference]: With dead ends: 1038 [2020-10-14 08:45:18,490 INFO L226 Difference]: Without dead ends: 1026 [2020-10-14 08:45:18,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-10-14 08:45:18,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2020-10-14 08:45:18,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 554. [2020-10-14 08:45:18,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2020-10-14 08:45:18,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 773 transitions. [2020-10-14 08:45:18,597 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 773 transitions. Word has length 74 [2020-10-14 08:45:18,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:45:18,597 INFO L479 AbstractCegarLoop]: Abstraction has 554 states and 773 transitions. [2020-10-14 08:45:18,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:45:18,598 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 773 transitions. [2020-10-14 08:45:18,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-14 08:45:18,598 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:45:18,598 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] [2020-10-14 08:45:18,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-14 08:45:18,599 INFO L427 AbstractCegarLoop]: === Iteration 32 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:45:18,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:45:18,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1575642432, now seen corresponding path program 1 times [2020-10-14 08:45:18,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:45:18,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [38265418] [2020-10-14 08:45:18,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:45:18,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:18,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:18,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:18,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:19,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking...