/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.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:54:14,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:54:14,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:54:14,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:54:14,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:54:14,502 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:54:14,504 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:54:14,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:54:14,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:54:14,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:54:14,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:54:14,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:54:14,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:54:14,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:54:14,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:54:14,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:54:14,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:54:14,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:54:14,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:54:14,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:54:14,537 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:54:14,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:54:14,539 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:54:14,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:54:14,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:54:14,552 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:54:14,552 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:54:14,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:54:14,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:54:14,564 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:54:14,564 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:54:14,565 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:54:14,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:54:14,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:54:14,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:54:14,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:54:14,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:54:14,571 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:54:14,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:54:14,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:54:14,574 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:54:14,575 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 08:54:14,614 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:54:14,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:54:14,617 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:54:14,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:54:14,617 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:54:14,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:54:14,618 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:54:14,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:54:14,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:54:14,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:54:14,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:54:14,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:54:14,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:54:14,620 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:54:14,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:54:14,620 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:54:14,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:54:14,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:54:14,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:54:14,621 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:54:14,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:54:14,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:54:14,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:54:14,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:54:14,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:54:14,622 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:54:14,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:54:14,623 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:54:14,623 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:54:14,623 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 08:54:14,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:54:15,014 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:54:15,019 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:54:15,021 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:54:15,021 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:54:15,022 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2020-10-14 08:54:15,083 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/515094fd0/e17265b75ccb47cdacb4e475c181fde8/FLAGdabe97517 [2020-10-14 08:54:15,768 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:54:15,768 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2020-10-14 08:54:15,808 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/515094fd0/e17265b75ccb47cdacb4e475c181fde8/FLAGdabe97517 [2020-10-14 08:54:15,923 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/515094fd0/e17265b75ccb47cdacb4e475c181fde8 [2020-10-14 08:54:15,936 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:54:15,938 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:54:15,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:54:15,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:54:15,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:54:15,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:54:15" (1/1) ... [2020-10-14 08:54:15,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f8e2c60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:15, skipping insertion in model container [2020-10-14 08:54:15,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:54:15" (1/1) ... [2020-10-14 08:54:15,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:54:16,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:54:17,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:54:17,659 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:54:18,891 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:54:18,924 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:54:18,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:18 WrapperNode [2020-10-14 08:54:18,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:54:18,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:54:18,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:54:18,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:54:18,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:18" (1/1) ... [2020-10-14 08:54:18,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:18" (1/1) ... [2020-10-14 08:54:19,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:18" (1/1) ... [2020-10-14 08:54:19,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:18" (1/1) ... [2020-10-14 08:54:19,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:18" (1/1) ... [2020-10-14 08:54:19,140 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:18" (1/1) ... [2020-10-14 08:54:19,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:18" (1/1) ... [2020-10-14 08:54:19,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:54:19,185 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:54:19,185 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:54:19,185 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:54:19,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:18" (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 08:54:19,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:54:19,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:54:19,267 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 08:54:19,267 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:54:19,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:54:19,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:54:19,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:54:19,269 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:54:19,269 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:54:19,269 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 08:54:19,270 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:54:19,270 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:54:19,270 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:54:19,270 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:54:19,270 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:54:19,271 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 08:54:19,272 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-14 08:54:19,272 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-14 08:54:19,272 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:54:19,272 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:54:19,273 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:54:19,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:54:19,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:54:23,288 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:54:23,288 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 08:54:23,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:54:23 BoogieIcfgContainer [2020-10-14 08:54:23,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:54:23,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:54:23,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:54:23,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:54:23,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:54:15" (1/3) ... [2020-10-14 08:54:23,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75eb8392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:54:23, skipping insertion in model container [2020-10-14 08:54:23,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:18" (2/3) ... [2020-10-14 08:54:23,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75eb8392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:54:23, skipping insertion in model container [2020-10-14 08:54:23,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:54:23" (3/3) ... [2020-10-14 08:54:23,316 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2020-10-14 08:54:23,327 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:54:23,340 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 22 error locations. [2020-10-14 08:54:23,354 INFO L251 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2020-10-14 08:54:23,386 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:54:23,387 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:54:23,387 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:54:23,387 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:54:23,387 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:54:23,387 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:54:23,387 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:54:23,387 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:54:23,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states. [2020-10-14 08:54:23,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-14 08:54:23,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:54:23,456 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:54:23,457 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:54:23,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:54:23,463 INFO L82 PathProgramCache]: Analyzing trace with hash 817114819, now seen corresponding path program 1 times [2020-10-14 08:54:23,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:54:23,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1447864319] [2020-10-14 08:54:23,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:54:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:54:24,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:24,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:24,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:24,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:24,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:25,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:26,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:26,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:27,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:28,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:54:28,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 08:54:28,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 08:54:28,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-14 08:54:28,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:54:28,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:54:28,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:54:28,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:54:28,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 08:54:28,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 08:54:30,380 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-14 08:54:30,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:54:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:54:30,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:30,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:54:30,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:54:30,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:54:30,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 08:54:30,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:54:30,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:54:30,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:54:30,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:54:30,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:54:30,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:54:30,585 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 08:54:30,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1447864319] [2020-10-14 08:54:30,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:54:30,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:54:30,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072998907] [2020-10-14 08:54:30,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:54:30,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:54:30,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:54:30,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:54:30,625 INFO L87 Difference]: Start difference. First operand 1136 states. Second operand 6 states. [2020-10-14 08:54:32,026 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 493 [2020-10-14 08:54:41,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:54:41,441 INFO L93 Difference]: Finished difference Result 1723 states and 3020 transitions. [2020-10-14 08:54:41,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:54:41,444 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 90 [2020-10-14 08:54:41,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:54:41,471 INFO L225 Difference]: With dead ends: 1723 [2020-10-14 08:54:41,472 INFO L226 Difference]: Without dead ends: 972 [2020-10-14 08:54:41,480 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:54:41,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2020-10-14 08:54:41,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 972. [2020-10-14 08:54:41,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 972 states. [2020-10-14 08:54:41,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1221 transitions. [2020-10-14 08:54:41,604 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1221 transitions. Word has length 90 [2020-10-14 08:54:41,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:54:41,606 INFO L479 AbstractCegarLoop]: Abstraction has 972 states and 1221 transitions. [2020-10-14 08:54:41,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:54:41,606 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1221 transitions. [2020-10-14 08:54:41,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-14 08:54:41,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:54:41,614 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:54:41,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:54:41,616 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:54:41,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:54:41,617 INFO L82 PathProgramCache]: Analyzing trace with hash 174389306, now seen corresponding path program 1 times [2020-10-14 08:54:41,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:54:41,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [143117250] [2020-10-14 08:54:41,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:54:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:54:41,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:41,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:41,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:42,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:42,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:42,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:43,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:44,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:46,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:54:46,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 08:54:46,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:54:46,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 08:54:46,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:54:46,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:54:46,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:54:46,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:54:46,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 08:54:46,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-14 08:54:47,941 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-14 08:54:47,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:54:47,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:54:47,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:48,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:54:48,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:54:48,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:54:48,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 08:54:48,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:54:48,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:54:48,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:54:48,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:54:48,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:54:48,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:54:48,078 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 08:54:48,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [143117250] [2020-10-14 08:54:48,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:54:48,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:54:48,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508546316] [2020-10-14 08:54:48,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:54:48,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:54:48,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:54:48,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:54:48,082 INFO L87 Difference]: Start difference. First operand 972 states and 1221 transitions. Second operand 6 states. [2020-10-14 08:54:49,264 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 496 [2020-10-14 08:54:54,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:54:54,914 INFO L93 Difference]: Finished difference Result 1834 states and 2379 transitions. [2020-10-14 08:54:54,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:54:54,915 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2020-10-14 08:54:54,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:54:54,927 INFO L225 Difference]: With dead ends: 1834 [2020-10-14 08:54:54,927 INFO L226 Difference]: Without dead ends: 1131 [2020-10-14 08:54:54,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:54:54,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2020-10-14 08:54:54,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 1051. [2020-10-14 08:54:55,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1051 states. [2020-10-14 08:54:55,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1374 transitions. [2020-10-14 08:54:55,006 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1374 transitions. Word has length 91 [2020-10-14 08:54:55,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:54:55,008 INFO L479 AbstractCegarLoop]: Abstraction has 1051 states and 1374 transitions. [2020-10-14 08:54:55,008 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:54:55,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1374 transitions. [2020-10-14 08:54:55,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 08:54:55,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:54:55,013 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:54:55,013 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:54:55,014 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:54:55,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:54:55,014 INFO L82 PathProgramCache]: Analyzing trace with hash -554240639, now seen corresponding path program 1 times [2020-10-14 08:54:55,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:54:55,015 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1803668502] [2020-10-14 08:54:55,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:54:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:54:55,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:55,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:55,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:55,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:55,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:56,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:56,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:57,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:57,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:57,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:57,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:00,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:55:00,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 08:55:00,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 08:55:00,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 08:55:00,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:55:00,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:55:00,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:55:00,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:55:00,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 08:55:00,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:55:01,542 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-14 08:55:01,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:55:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:55:01,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:01,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:55:01,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:55:01,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:55:01,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 08:55:01,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:55:01,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:55:01,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:55:01,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:55:01,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:55:01,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:55:01,645 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 08:55:01,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1803668502] [2020-10-14 08:55:01,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:55:01,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:55:01,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341244165] [2020-10-14 08:55:01,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:55:01,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:55:01,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:55:01,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:55:01,650 INFO L87 Difference]: Start difference. First operand 1051 states and 1374 transitions. Second operand 7 states. [2020-10-14 08:55:03,072 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 497 [2020-10-14 08:55:09,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:55:09,343 INFO L93 Difference]: Finished difference Result 1861 states and 2444 transitions. [2020-10-14 08:55:09,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 08:55:09,344 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2020-10-14 08:55:09,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:55:09,352 INFO L225 Difference]: With dead ends: 1861 [2020-10-14 08:55:09,352 INFO L226 Difference]: Without dead ends: 1379 [2020-10-14 08:55:09,354 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:55:09,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2020-10-14 08:55:09,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 1051. [2020-10-14 08:55:09,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1051 states. [2020-10-14 08:55:09,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1373 transitions. [2020-10-14 08:55:09,405 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1373 transitions. Word has length 92 [2020-10-14 08:55:09,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:55:09,406 INFO L479 AbstractCegarLoop]: Abstraction has 1051 states and 1373 transitions. [2020-10-14 08:55:09,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:55:09,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1373 transitions. [2020-10-14 08:55:09,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 08:55:09,409 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:55:09,409 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:55:09,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:55:09,410 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:55:09,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:55:09,410 INFO L82 PathProgramCache]: Analyzing trace with hash -556692163, now seen corresponding path program 1 times [2020-10-14 08:55:09,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:55:09,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1121048845] [2020-10-14 08:55:09,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:55:09,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:55:09,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:09,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:09,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:09,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:09,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:10,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:10,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:11,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:11,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:12,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:12,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:13,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:14,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:14,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:55:14,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 08:55:14,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-14 08:55:14,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 08:55:14,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:55:14,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:55:14,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:55:14,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:55:14,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 08:55:14,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:55:15,939 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-14 08:55:15,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:55:15,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:55:15,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:15,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:55:15,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:55:15,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:55:15,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 08:55:15,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:55:15,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:55:15,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:55:15,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:55:15,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:55:15,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:55:16,026 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 08:55:16,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1121048845] [2020-10-14 08:55:16,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:55:16,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:55:16,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492367698] [2020-10-14 08:55:16,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:55:16,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:55:16,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:55:16,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:55:16,032 INFO L87 Difference]: Start difference. First operand 1051 states and 1373 transitions. Second operand 6 states. [2020-10-14 08:55:17,132 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 488 [2020-10-14 08:55:25,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:55:25,919 INFO L93 Difference]: Finished difference Result 3530 states and 4924 transitions. [2020-10-14 08:55:25,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 08:55:25,920 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2020-10-14 08:55:25,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:55:25,936 INFO L225 Difference]: With dead ends: 3530 [2020-10-14 08:55:25,936 INFO L226 Difference]: Without dead ends: 3090 [2020-10-14 08:55:25,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:55:25,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3090 states. [2020-10-14 08:55:26,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3090 to 2264. [2020-10-14 08:55:26,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2264 states. [2020-10-14 08:55:26,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2264 states to 2264 states and 3183 transitions. [2020-10-14 08:55:26,067 INFO L78 Accepts]: Start accepts. Automaton has 2264 states and 3183 transitions. Word has length 92 [2020-10-14 08:55:26,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:55:26,067 INFO L479 AbstractCegarLoop]: Abstraction has 2264 states and 3183 transitions. [2020-10-14 08:55:26,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:55:26,068 INFO L276 IsEmpty]: Start isEmpty. Operand 2264 states and 3183 transitions. [2020-10-14 08:55:26,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-14 08:55:26,072 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:55:26,073 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:55:26,073 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:55:26,073 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:55:26,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:55:26,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1503669766, now seen corresponding path program 1 times [2020-10-14 08:55:26,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:55:26,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730931315] [2020-10-14 08:55:26,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:55:26,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:55:26,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:26,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:26,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:26,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:26,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:27,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:27,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:27,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:28,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:29,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:29,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:30,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:31,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:55:31,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 08:55:31,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 08:55:31,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:55:31,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:55:31,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:55:31,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:55:31,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:55:31,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 08:55:31,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:55:32,223 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-14 08:55:32,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:55:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:55:32,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:32,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:55:32,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:55:32,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:55:32,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 08:55:32,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:55:32,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:55:32,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:55:32,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:55:32,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:55:32,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:55:32,320 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 08:55:32,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730931315] [2020-10-14 08:55:32,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:55:32,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:55:32,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829403928] [2020-10-14 08:55:32,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:55:32,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:55:32,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:55:32,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:55:32,323 INFO L87 Difference]: Start difference. First operand 2264 states and 3183 transitions. Second operand 6 states. [2020-10-14 08:55:33,471 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 495 [2020-10-14 08:55:38,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:55:38,448 INFO L93 Difference]: Finished difference Result 5460 states and 7815 transitions. [2020-10-14 08:55:38,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:55:38,449 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2020-10-14 08:55:38,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:55:38,462 INFO L225 Difference]: With dead ends: 5460 [2020-10-14 08:55:38,463 INFO L226 Difference]: Without dead ends: 3377 [2020-10-14 08:55:38,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:55:38,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3377 states. [2020-10-14 08:55:38,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3377 to 3297. [2020-10-14 08:55:38,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3297 states. [2020-10-14 08:55:38,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3297 states to 3297 states and 4745 transitions. [2020-10-14 08:55:38,667 INFO L78 Accepts]: Start accepts. Automaton has 3297 states and 4745 transitions. Word has length 93 [2020-10-14 08:55:38,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:55:38,669 INFO L479 AbstractCegarLoop]: Abstraction has 3297 states and 4745 transitions. [2020-10-14 08:55:38,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:55:38,669 INFO L276 IsEmpty]: Start isEmpty. Operand 3297 states and 4745 transitions. [2020-10-14 08:55:38,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-14 08:55:38,676 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:55:38,677 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:55:38,677 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:55:38,677 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:55:38,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:55:38,678 INFO L82 PathProgramCache]: Analyzing trace with hash 790522231, now seen corresponding path program 1 times [2020-10-14 08:55:38,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:55:38,678 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2022699154] [2020-10-14 08:55:38,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:55:38,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:55:38,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:38,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:38,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:39,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:39,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:40,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:40,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:41,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:42,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:42,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:43,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:43,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:43,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:43,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:43,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:55:43,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-14 08:55:43,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:55:43,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-14 08:55:43,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:55:43,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:55:43,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:55:43,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-14 08:55:43,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 08:55:43,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:55:44,955 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-14 08:55:44,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:55:44,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:55:44,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:44,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:55:44,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:55:44,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:55:44,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 08:55:44,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:55:44,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:55:44,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:55:44,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:55:44,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:55:44,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:55:45,027 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 08:55:45,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2022699154] [2020-10-14 08:55:45,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:55:45,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:55:45,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986683426] [2020-10-14 08:55:45,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:55:45,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:55:45,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:55:45,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:55:45,030 INFO L87 Difference]: Start difference. First operand 3297 states and 4745 transitions. Second operand 6 states. [2020-10-14 08:55:46,091 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 488 [2020-10-14 08:55:53,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:55:53,756 INFO L93 Difference]: Finished difference Result 16505 states and 24469 transitions. [2020-10-14 08:55:53,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 08:55:53,757 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 94 [2020-10-14 08:55:53,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:55:53,817 INFO L225 Difference]: With dead ends: 16505 [2020-10-14 08:55:53,817 INFO L226 Difference]: Without dead ends: 15251 [2020-10-14 08:55:53,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:55:53,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15251 states. [2020-10-14 08:55:54,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15251 to 10179. [2020-10-14 08:55:54,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10179 states. [2020-10-14 08:55:54,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10179 states to 10179 states and 14983 transitions. [2020-10-14 08:55:54,462 INFO L78 Accepts]: Start accepts. Automaton has 10179 states and 14983 transitions. Word has length 94 [2020-10-14 08:55:54,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:55:54,463 INFO L479 AbstractCegarLoop]: Abstraction has 10179 states and 14983 transitions. [2020-10-14 08:55:54,463 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:55:54,463 INFO L276 IsEmpty]: Start isEmpty. Operand 10179 states and 14983 transitions. [2020-10-14 08:55:54,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-14 08:55:54,475 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:55:54,475 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:55:54,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:55:54,476 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:55:54,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:55:54,476 INFO L82 PathProgramCache]: Analyzing trace with hash 280141918, now seen corresponding path program 1 times [2020-10-14 08:55:54,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:55:54,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [177378745] [2020-10-14 08:55:54,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:55:54,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:55:54,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:54,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:54,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:56,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:56,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:57,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:57,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:58,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:58,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:58,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:59,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:59,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:55:59,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-14 08:55:59,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 08:55:59,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 08:55:59,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:55:59,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:55:59,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:55:59,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:55:59,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 08:55:59,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:56:00,699 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-14 08:56:00,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:56:00,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:56:00,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:00,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:56:00,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:56:00,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:56:00,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 08:56:00,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:56:00,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:56:00,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:56:00,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:56:00,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:56:00,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:56:00,771 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 08:56:00,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [177378745] [2020-10-14 08:56:00,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:56:00,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:56:00,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13147956] [2020-10-14 08:56:00,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:56:00,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:56:00,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:56:00,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:56:00,773 INFO L87 Difference]: Start difference. First operand 10179 states and 14983 transitions. Second operand 6 states. [2020-10-14 08:56:01,877 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 496 [2020-10-14 08:56:06,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:56:06,598 INFO L93 Difference]: Finished difference Result 12639 states and 18628 transitions. [2020-10-14 08:56:06,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:56:06,598 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 94 [2020-10-14 08:56:06,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:56:06,614 INFO L225 Difference]: With dead ends: 12639 [2020-10-14 08:56:06,614 INFO L226 Difference]: Without dead ends: 6446 [2020-10-14 08:56:06,625 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:56:06,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6446 states. [2020-10-14 08:56:06,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6446 to 5218. [2020-10-14 08:56:06,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5218 states. [2020-10-14 08:56:06,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5218 states to 5218 states and 7616 transitions. [2020-10-14 08:56:06,871 INFO L78 Accepts]: Start accepts. Automaton has 5218 states and 7616 transitions. Word has length 94 [2020-10-14 08:56:06,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:56:06,872 INFO L479 AbstractCegarLoop]: Abstraction has 5218 states and 7616 transitions. [2020-10-14 08:56:06,872 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:56:06,872 INFO L276 IsEmpty]: Start isEmpty. Operand 5218 states and 7616 transitions. [2020-10-14 08:56:06,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-14 08:56:06,879 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:56:06,879 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:56:06,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:56:06,880 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:56:06,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:56:06,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1594112868, now seen corresponding path program 1 times [2020-10-14 08:56:06,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:56:06,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2064007134] [2020-10-14 08:56:06,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:56:06,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:56:06,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:07,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:07,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:07,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:07,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:08,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:08,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:09,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:09,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:09,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:09,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:10,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:10,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:11,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:11,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:11,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:11,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:56:11,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 08:56:11,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 08:56:11,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 08:56:11,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:56:11,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:56:11,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:56:11,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:56:11,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 08:56:11,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:56:13,152 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-14 08:56:13,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:56:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:56:13,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:13,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:56:13,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:56:13,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:56:13,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 08:56:13,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:56:13,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:56:13,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:56:13,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:56:13,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:56:13,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:56:13,268 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 08:56:13,268 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2064007134] [2020-10-14 08:56:13,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:56:13,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:56:13,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859023774] [2020-10-14 08:56:13,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:56:13,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:56:13,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:56:13,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:56:13,271 INFO L87 Difference]: Start difference. First operand 5218 states and 7616 transitions. Second operand 6 states. [2020-10-14 08:56:14,392 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 493 [2020-10-14 08:56:18,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:56:18,859 INFO L93 Difference]: Finished difference Result 10311 states and 15104 transitions. [2020-10-14 08:56:18,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:56:18,860 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 95 [2020-10-14 08:56:18,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:56:18,869 INFO L225 Difference]: With dead ends: 10311 [2020-10-14 08:56:18,869 INFO L226 Difference]: Without dead ends: 5184 [2020-10-14 08:56:18,877 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:56:18,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5184 states. [2020-10-14 08:56:19,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5184 to 5184. [2020-10-14 08:56:19,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5184 states. [2020-10-14 08:56:19,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5184 states to 5184 states and 7548 transitions. [2020-10-14 08:56:19,144 INFO L78 Accepts]: Start accepts. Automaton has 5184 states and 7548 transitions. Word has length 95 [2020-10-14 08:56:19,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:56:19,145 INFO L479 AbstractCegarLoop]: Abstraction has 5184 states and 7548 transitions. [2020-10-14 08:56:19,145 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:56:19,145 INFO L276 IsEmpty]: Start isEmpty. Operand 5184 states and 7548 transitions. [2020-10-14 08:56:19,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 08:56:19,149 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:56:19,150 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:56:19,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 08:56:19,150 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:56:19,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:56:19,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1584233607, now seen corresponding path program 1 times [2020-10-14 08:56:19,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:56:19,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [5625692] [2020-10-14 08:56:19,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:56:19,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:56:19,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:19,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:19,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:19,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:19,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:20,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:20,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:21,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:21,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:21,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:22,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:22,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:22,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:23,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:23,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:23,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:23,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:24,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:24,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:56:24,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 08:56:24,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-14 08:56:24,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-14 08:56:24,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:56:24,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:56:24,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:56:24,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:56:24,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 08:56:24,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:56:25,543 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-14 08:56:25,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:56:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:56:25,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:25,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:56:25,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:56:25,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:56:25,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 08:56:25,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:56:25,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:56:25,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:56:25,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:56:25,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:56:25,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:56:25,649 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 08:56:25,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [5625692] [2020-10-14 08:56:25,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:56:25,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:56:25,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227223091] [2020-10-14 08:56:25,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:56:25,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:56:25,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:56:25,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:56:25,651 INFO L87 Difference]: Start difference. First operand 5184 states and 7548 transitions. Second operand 10 states. [2020-10-14 08:56:26,819 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 498 [2020-10-14 08:56:33,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:56:33,289 INFO L93 Difference]: Finished difference Result 12226 states and 18091 transitions. [2020-10-14 08:56:33,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:56:33,290 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 96 [2020-10-14 08:56:33,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:56:33,310 INFO L225 Difference]: With dead ends: 12226 [2020-10-14 08:56:33,311 INFO L226 Difference]: Without dead ends: 9908 [2020-10-14 08:56:33,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:56:33,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9908 states. [2020-10-14 08:56:33,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9908 to 5184. [2020-10-14 08:56:33,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5184 states. [2020-10-14 08:56:33,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5184 states to 5184 states and 7547 transitions. [2020-10-14 08:56:33,727 INFO L78 Accepts]: Start accepts. Automaton has 5184 states and 7547 transitions. Word has length 96 [2020-10-14 08:56:33,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:56:33,727 INFO L479 AbstractCegarLoop]: Abstraction has 5184 states and 7547 transitions. [2020-10-14 08:56:33,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:56:33,727 INFO L276 IsEmpty]: Start isEmpty. Operand 5184 states and 7547 transitions. [2020-10-14 08:56:33,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 08:56:33,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:56:33,731 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:56:33,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 08:56:33,731 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:56:33,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:56:33,732 INFO L82 PathProgramCache]: Analyzing trace with hash -2094613920, now seen corresponding path program 1 times [2020-10-14 08:56:33,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:56:33,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2038005668] [2020-10-14 08:56:33,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:56:33,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:56:33,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:33,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:34,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:34,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:34,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:35,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:35,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:35,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:35,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:36,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:36,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:38,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:38,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:38,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:56:38,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 08:56:38,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-14 08:56:38,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 08:56:38,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:56:38,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:56:38,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:56:38,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:56:38,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 08:56:38,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:56:39,964 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-14 08:56:39,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:56:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:56:39,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:40,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:56:40,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:56:40,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:56:40,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 08:56:40,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:56:40,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:56:40,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:56:40,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:56:40,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:56:40,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:56:40,050 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 08:56:40,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2038005668] [2020-10-14 08:56:40,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:56:40,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:56:40,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595392933] [2020-10-14 08:56:40,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:56:40,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:56:40,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:56:40,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:56:40,053 INFO L87 Difference]: Start difference. First operand 5184 states and 7547 transitions. Second operand 10 states. [2020-10-14 08:56:41,304 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 499 [2020-10-14 08:56:48,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:56:48,670 INFO L93 Difference]: Finished difference Result 16744 states and 24936 transitions. [2020-10-14 08:56:48,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 08:56:48,670 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 96 [2020-10-14 08:56:48,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:56:48,694 INFO L225 Difference]: With dead ends: 16744 [2020-10-14 08:56:48,694 INFO L226 Difference]: Without dead ends: 14440 [2020-10-14 08:56:48,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2020-10-14 08:56:48,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14440 states. [2020-10-14 08:56:49,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14440 to 5184. [2020-10-14 08:56:49,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5184 states. [2020-10-14 08:56:49,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5184 states to 5184 states and 7545 transitions. [2020-10-14 08:56:49,261 INFO L78 Accepts]: Start accepts. Automaton has 5184 states and 7545 transitions. Word has length 96 [2020-10-14 08:56:49,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:56:49,262 INFO L479 AbstractCegarLoop]: Abstraction has 5184 states and 7545 transitions. [2020-10-14 08:56:49,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:56:49,262 INFO L276 IsEmpty]: Start isEmpty. Operand 5184 states and 7545 transitions. [2020-10-14 08:56:49,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 08:56:49,266 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:56:49,266 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:56:49,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 08:56:49,267 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:56:49,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:56:49,267 INFO L82 PathProgramCache]: Analyzing trace with hash 141746119, now seen corresponding path program 1 times [2020-10-14 08:56:49,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:56:49,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [495908912] [2020-10-14 08:56:49,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:56:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:56:49,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:49,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:49,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:49,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:49,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:50,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:50,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:51,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:52,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:52,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:52,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:54,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:56:54,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 08:56:54,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 08:56:54,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 08:56:54,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:56:54,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:56:54,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:56:54,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:56:54,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 08:56:54,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:56:55,631 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-14 08:56:55,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:56:55,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:56:55,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:55,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:56:55,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:56:55,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:56:55,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 08:56:55,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:56:55,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:56:55,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:56:55,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:56:55,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:56:55,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:56:55,721 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 08:56:55,721 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [495908912] [2020-10-14 08:56:55,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:56:55,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:56:55,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703332851] [2020-10-14 08:56:55,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:56:55,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:56:55,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:56:55,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:56:55,723 INFO L87 Difference]: Start difference. First operand 5184 states and 7545 transitions. Second operand 10 states. [2020-10-14 08:56:57,007 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 500 [2020-10-14 08:57:03,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:57:03,638 INFO L93 Difference]: Finished difference Result 12262 states and 18138 transitions. [2020-10-14 08:57:03,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:57:03,638 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 96 [2020-10-14 08:57:03,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:57:03,652 INFO L225 Difference]: With dead ends: 12262 [2020-10-14 08:57:03,652 INFO L226 Difference]: Without dead ends: 9908 [2020-10-14 08:57:03,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:57:03,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9908 states. [2020-10-14 08:57:04,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9908 to 5184. [2020-10-14 08:57:04,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5184 states. [2020-10-14 08:57:04,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5184 states to 5184 states and 7543 transitions. [2020-10-14 08:57:04,154 INFO L78 Accepts]: Start accepts. Automaton has 5184 states and 7543 transitions. Word has length 96 [2020-10-14 08:57:04,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:57:04,155 INFO L479 AbstractCegarLoop]: Abstraction has 5184 states and 7543 transitions. [2020-10-14 08:57:04,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:57:04,155 INFO L276 IsEmpty]: Start isEmpty. Operand 5184 states and 7543 transitions. [2020-10-14 08:57:04,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 08:57:04,158 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:57:04,158 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, 1, 1, 1, 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 08:57:04,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 08:57:04,159 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:57:04,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:57:04,159 INFO L82 PathProgramCache]: Analyzing trace with hash 82281577, now seen corresponding path program 1 times [2020-10-14 08:57:04,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:57:04,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [873147938] [2020-10-14 08:57:04,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:57:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:57:04,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:04,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:05,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:05,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:05,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:05,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:06,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:06,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:08,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:08,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:09,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:57:09,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 08:57:09,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 08:57:09,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-14 08:57:09,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:57:09,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:57:09,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:57:09,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:57:09,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 08:57:09,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:57:10,374 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-14 08:57:10,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:57:10,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:57:10,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:10,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:57:10,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:57:10,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:57:10,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 08:57:10,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:57:10,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:57:10,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:57:10,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:57:10,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:57:10,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:57:10,456 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 08:57:10,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [873147938] [2020-10-14 08:57:10,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:57:10,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:57:10,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497078915] [2020-10-14 08:57:10,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:57:10,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:57:10,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:57:10,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:57:10,458 INFO L87 Difference]: Start difference. First operand 5184 states and 7543 transitions. Second operand 10 states. [2020-10-14 08:57:11,607 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 499 [2020-10-14 08:57:19,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:57:19,361 INFO L93 Difference]: Finished difference Result 16752 states and 24944 transitions. [2020-10-14 08:57:19,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 08:57:19,362 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 96 [2020-10-14 08:57:19,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:57:19,379 INFO L225 Difference]: With dead ends: 16752 [2020-10-14 08:57:19,379 INFO L226 Difference]: Without dead ends: 14440 [2020-10-14 08:57:19,386 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2020-10-14 08:57:19,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14440 states. [2020-10-14 08:57:19,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14440 to 5184. [2020-10-14 08:57:19,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5184 states. [2020-10-14 08:57:19,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5184 states to 5184 states and 7539 transitions. [2020-10-14 08:57:19,771 INFO L78 Accepts]: Start accepts. Automaton has 5184 states and 7539 transitions. Word has length 96 [2020-10-14 08:57:19,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:57:19,771 INFO L479 AbstractCegarLoop]: Abstraction has 5184 states and 7539 transitions. [2020-10-14 08:57:19,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:57:19,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5184 states and 7539 transitions. [2020-10-14 08:57:19,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-14 08:57:19,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:57:19,775 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:57:19,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 08:57:19,775 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:57:19,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:57:19,776 INFO L82 PathProgramCache]: Analyzing trace with hash 282711233, now seen corresponding path program 1 times [2020-10-14 08:57:19,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:57:19,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1100306470] [2020-10-14 08:57:19,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:57:19,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:57:19,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:19,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:20,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:20,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:20,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:24,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:57:24,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:57:24,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:57:24,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 08:57:24,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:57:24,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:57:24,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:57:24,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:57:24,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-14 08:57:24,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:57:25,899 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-14 08:57:25,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:57:25,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:57:25,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:25,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:57:25,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:57:25,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:57:25,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 08:57:25,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:57:25,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:57:25,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:57:25,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:57:25,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:57:25,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:57:25,972 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 08:57:25,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1100306470] [2020-10-14 08:57:25,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:57:25,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:57:25,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278594689] [2020-10-14 08:57:25,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:57:25,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:57:25,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:57:25,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:57:25,973 INFO L87 Difference]: Start difference. First operand 5184 states and 7539 transitions. Second operand 6 states. [2020-10-14 08:57:27,207 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 493 [2020-10-14 08:57:31,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:57:31,827 INFO L93 Difference]: Finished difference Result 5836 states and 8474 transitions. [2020-10-14 08:57:31,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:57:31,827 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 97 [2020-10-14 08:57:31,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:57:31,831 INFO L225 Difference]: With dead ends: 5836 [2020-10-14 08:57:31,831 INFO L226 Difference]: Without dead ends: 2964 [2020-10-14 08:57:31,835 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:57:31,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2020-10-14 08:57:31,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 1863. [2020-10-14 08:57:31,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1863 states. [2020-10-14 08:57:31,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1863 states to 1863 states and 2625 transitions. [2020-10-14 08:57:31,987 INFO L78 Accepts]: Start accepts. Automaton has 1863 states and 2625 transitions. Word has length 97 [2020-10-14 08:57:31,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:57:31,988 INFO L479 AbstractCegarLoop]: Abstraction has 1863 states and 2625 transitions. [2020-10-14 08:57:31,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:57:31,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1863 states and 2625 transitions. [2020-10-14 08:57:31,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-14 08:57:31,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:57:31,991 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:57:31,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 08:57:31,991 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:57:31,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:57:31,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1955781942, now seen corresponding path program 1 times [2020-10-14 08:57:31,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:57:31,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1040289733] [2020-10-14 08:57:31,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:57:32,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:57:32,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:32,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:32,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:32,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:32,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:33,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:34,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:35,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:37,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:57:37,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 08:57:37,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:57:37,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 08:57:37,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:57:37,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:57:37,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:57:37,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:57:37,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 08:57:37,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:57:38,248 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-14 08:57:38,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:57:38,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:57:38,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:38,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:57:38,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:57:38,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:57:38,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 08:57:38,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:57:38,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:57:38,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:57:38,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:57:38,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:57:38,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:57:38,332 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 08:57:38,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1040289733] [2020-10-14 08:57:38,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:57:38,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:57:38,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769195934] [2020-10-14 08:57:38,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:57:38,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:57:38,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:57:38,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:57:38,334 INFO L87 Difference]: Start difference. First operand 1863 states and 2625 transitions. Second operand 10 states. [2020-10-14 08:57:39,554 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 500 [2020-10-14 08:57:45,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:57:45,748 INFO L93 Difference]: Finished difference Result 5024 states and 7230 transitions. [2020-10-14 08:57:45,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:57:45,749 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 98 [2020-10-14 08:57:45,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:57:45,754 INFO L225 Difference]: With dead ends: 5024 [2020-10-14 08:57:45,755 INFO L226 Difference]: Without dead ends: 4312 [2020-10-14 08:57:45,757 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:57:45,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4312 states. [2020-10-14 08:57:45,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4312 to 1863. [2020-10-14 08:57:45,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1863 states. [2020-10-14 08:57:45,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1863 states to 1863 states and 2624 transitions. [2020-10-14 08:57:45,949 INFO L78 Accepts]: Start accepts. Automaton has 1863 states and 2624 transitions. Word has length 98 [2020-10-14 08:57:45,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:57:45,949 INFO L479 AbstractCegarLoop]: Abstraction has 1863 states and 2624 transitions. [2020-10-14 08:57:45,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:57:45,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1863 states and 2624 transitions. [2020-10-14 08:57:45,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-14 08:57:45,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:57:45,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:57:45,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 08:57:45,952 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:57:45,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:57:45,952 INFO L82 PathProgramCache]: Analyzing trace with hash 851989020, now seen corresponding path program 1 times [2020-10-14 08:57:45,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:57:45,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1379925604] [2020-10-14 08:57:45,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:57:45,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:57:46,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:46,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:46,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:46,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:47,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:48,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:48,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:49,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:49,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:49,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:51,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:57:51,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 08:57:51,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 08:57:51,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 08:57:51,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:57:51,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:57:51,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:57:51,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:57:51,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-14 08:57:51,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:57:52,202 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-14 08:57:52,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:57:52,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:57:52,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:52,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:57:52,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:57:52,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:57:52,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 08:57:52,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:57:52,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:57:52,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:57:52,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:57:52,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:57:52,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:57:52,291 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 08:57:52,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1379925604] [2020-10-14 08:57:52,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:57:52,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:57:52,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723210695] [2020-10-14 08:57:52,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:57:52,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:57:52,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:57:52,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:57:52,293 INFO L87 Difference]: Start difference. First operand 1863 states and 2624 transitions. Second operand 10 states. [2020-10-14 08:57:53,503 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 499