/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:55:37,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:55:37,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:55:37,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:55:37,546 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:55:37,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:55:37,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:55:37,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:55:37,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:55:37,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:55:37,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:55:37,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:55:37,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:55:37,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:55:37,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:55:37,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:55:37,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:55:37,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:55:37,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:55:37,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:55:37,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:55:37,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:55:37,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:55:37,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:55:37,569 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:55:37,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:55:37,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:55:37,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:55:37,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:55:37,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:55:37,572 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:55:37,573 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:55:37,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:55:37,574 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:55:37,575 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:55:37,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:55:37,576 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:55:37,576 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:55:37,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:55:37,577 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:55:37,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:55:37,579 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 [2020-10-15 02:55:37,602 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:55:37,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:55:37,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:55:37,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:55:37,604 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:55:37,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:55:37,604 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:55:37,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:55:37,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:55:37,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:55:37,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:55:37,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:55:37,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:55:37,605 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:55:37,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:55:37,606 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:55:37,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:55:37,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:55:37,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:55:37,606 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:55:37,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:55:37,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:55:37,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:55:37,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:55:37,607 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:55:37,608 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:55:37,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:55:37,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:55:37,608 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:55:37,608 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:55:37,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:55:37,923 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:55:37,926 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:55:37,928 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:55:37,932 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:55:37,933 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 02:55:37,997 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f9ad9167/2c11ac3fe3114edf952260c888dbde05/FLAG503337aa9 [2020-10-15 02:55:38,517 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:55:38,518 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 02:55:38,533 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f9ad9167/2c11ac3fe3114edf952260c888dbde05/FLAG503337aa9 [2020-10-15 02:55:38,826 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f9ad9167/2c11ac3fe3114edf952260c888dbde05 [2020-10-15 02:55:38,834 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:55:38,835 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:55:38,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:55:38,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:55:38,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:55:38,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:55:38" (1/1) ... [2020-10-15 02:55:38,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15f5f327 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:38, skipping insertion in model container [2020-10-15 02:55:38,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:55:38" (1/1) ... [2020-10-15 02:55:38,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:55:38,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:55:39,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:55:39,394 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:55:39,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:55:39,540 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:55:39,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:39 WrapperNode [2020-10-15 02:55:39,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:55:39,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:55:39,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:55:39,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:55:39,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:39" (1/1) ... [2020-10-15 02:55:39,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:39" (1/1) ... [2020-10-15 02:55:39,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:39" (1/1) ... [2020-10-15 02:55:39,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:39" (1/1) ... [2020-10-15 02:55:39,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:39" (1/1) ... [2020-10-15 02:55:39,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:39" (1/1) ... [2020-10-15 02:55:39,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:39" (1/1) ... [2020-10-15 02:55:39,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:55:39,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:55:39,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:55:39,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:55:39,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:39" (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 [2020-10-15 02:55:39,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:55:39,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:55:39,719 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 02:55:39,720 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:55:39,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:55:39,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:55:39,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 02:55:39,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:55:39,721 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:55:39,721 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:55:39,721 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 02:55:39,721 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:55:39,721 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:55:39,721 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:55:39,722 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:55:39,722 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:55:39,722 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:55:39,722 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:55:39,722 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:55:39,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:55:39,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:55:40,830 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:55:40,830 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 02:55:40,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:55:40 BoogieIcfgContainer [2020-10-15 02:55:40,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:55:40,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:55:40,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:55:40,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:55:40,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:55:38" (1/3) ... [2020-10-15 02:55:40,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac57e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:55:40, skipping insertion in model container [2020-10-15 02:55:40,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:39" (2/3) ... [2020-10-15 02:55:40,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac57e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:55:40, skipping insertion in model container [2020-10-15 02:55:40,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:55:40" (3/3) ... [2020-10-15 02:55:40,844 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 02:55:40,854 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:55:40,862 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-15 02:55:40,875 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-15 02:55:40,897 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:55:40,897 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:55:40,897 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:55:40,897 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:55:40,898 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:55:40,898 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:55:40,898 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:55:40,898 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:55:40,920 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states. [2020-10-15 02:55:40,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-15 02:55:40,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:55:40,933 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] [2020-10-15 02:55:40,933 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:55:40,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:55:40,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1598818953, now seen corresponding path program 1 times [2020-10-15 02:55:40,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:55:40,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [741103197] [2020-10-15 02:55:40,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:55:41,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:55:41,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:41,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:41,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:41,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:42,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:42,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:43,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:43,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:44,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:44,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:45,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:46,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:55:46,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-15 02:55:46,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 02:55:46,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-15 02:55:46,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:55:46,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:55:46,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:55:46,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:55:46,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-15 02:55:46,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:55:46,783 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-15 02:55:46,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:55:46,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:55:46,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:46,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:55:46,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:55:46,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:55:46,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:55:46,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:55:46,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:55:46,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:55:46,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:55:46,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:55:46,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:55:46,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:55:46,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [741103197] [2020-10-15 02:55:46,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:55:46,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:55:46,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495081942] [2020-10-15 02:55:46,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:55:46,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:55:46,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:55:46,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:55:46,935 INFO L87 Difference]: Start difference. First operand 250 states. Second operand 5 states. [2020-10-15 02:55:49,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:55:49,254 INFO L93 Difference]: Finished difference Result 709 states and 1257 transitions. [2020-10-15 02:55:49,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 02:55:49,256 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 96 [2020-10-15 02:55:49,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:55:49,273 INFO L225 Difference]: With dead ends: 709 [2020-10-15 02:55:49,274 INFO L226 Difference]: Without dead ends: 472 [2020-10-15 02:55:49,279 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:55:49,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2020-10-15 02:55:49,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 458. [2020-10-15 02:55:49,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2020-10-15 02:55:49,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 668 transitions. [2020-10-15 02:55:49,367 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 668 transitions. Word has length 96 [2020-10-15 02:55:49,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:55:49,368 INFO L479 AbstractCegarLoop]: Abstraction has 458 states and 668 transitions. [2020-10-15 02:55:49,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:55:49,368 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 668 transitions. [2020-10-15 02:55:49,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-15 02:55:49,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:55:49,379 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] [2020-10-15 02:55:49,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:55:49,380 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:55:49,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:55:49,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1615497314, now seen corresponding path program 1 times [2020-10-15 02:55:49,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:55:49,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1607361387] [2020-10-15 02:55:49,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:55:49,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:55:49,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:49,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:49,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:49,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:49,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:49,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:49,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:53,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:54,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:55:54,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-15 02:55:54,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 02:55:54,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-15 02:55:54,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:55:54,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:55:54,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:55:54,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:55:54,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:55:54,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-15 02:55:54,693 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-15 02:55:54,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:55:54,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:55:54,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:54,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:55:54,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:55:54,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:55:54,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:55:54,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:55:54,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:55:54,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:55:54,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:55:54,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:55:54,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:55:54,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:55:54,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1607361387] [2020-10-15 02:55:54,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:55:54,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:55:54,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468166915] [2020-10-15 02:55:54,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:55:54,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:55:54,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:55:54,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:55:54,743 INFO L87 Difference]: Start difference. First operand 458 states and 668 transitions. Second operand 5 states. [2020-10-15 02:55:56,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:55:56,380 INFO L93 Difference]: Finished difference Result 1294 states and 1876 transitions. [2020-10-15 02:55:56,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:55:56,381 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2020-10-15 02:55:56,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:55:56,386 INFO L225 Difference]: With dead ends: 1294 [2020-10-15 02:55:56,386 INFO L226 Difference]: Without dead ends: 869 [2020-10-15 02:55:56,390 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:55:56,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2020-10-15 02:55:56,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 834. [2020-10-15 02:55:56,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 834 states. [2020-10-15 02:55:56,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1204 transitions. [2020-10-15 02:55:56,448 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1204 transitions. Word has length 97 [2020-10-15 02:55:56,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:55:56,449 INFO L479 AbstractCegarLoop]: Abstraction has 834 states and 1204 transitions. [2020-10-15 02:55:56,449 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:55:56,449 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1204 transitions. [2020-10-15 02:55:56,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-15 02:55:56,453 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:55:56,453 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] [2020-10-15 02:55:56,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:55:56,453 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:55:56,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:55:56,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1966911528, now seen corresponding path program 1 times [2020-10-15 02:55:56,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:55:56,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1273870330] [2020-10-15 02:55:56,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:55:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:55:56,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:56,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:56,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:56,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:56,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:56,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:58,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:58,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:00,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:00,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:00,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:01,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:56:01,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-15 02:56:01,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 02:56:01,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-15 02:56:01,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:56:01,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:56:01,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:56:01,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:56:01,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-15 02:56:01,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:56:01,693 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-15 02:56:01,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:56:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:56:01,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:01,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:56:01,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:56:01,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:56:01,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:56:01,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:56:01,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:56:01,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:56:01,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:56:01,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:56:01,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:56:01,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:56:01,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1273870330] [2020-10-15 02:56:01,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:56:01,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:56:01,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571012178] [2020-10-15 02:56:01,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:56:01,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:56:01,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:56:01,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:56:01,740 INFO L87 Difference]: Start difference. First operand 834 states and 1204 transitions. Second operand 5 states. [2020-10-15 02:56:03,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:56:03,482 INFO L93 Difference]: Finished difference Result 2410 states and 3466 transitions. [2020-10-15 02:56:03,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:56:03,483 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 98 [2020-10-15 02:56:03,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:56:03,492 INFO L225 Difference]: With dead ends: 2410 [2020-10-15 02:56:03,493 INFO L226 Difference]: Without dead ends: 1612 [2020-10-15 02:56:03,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:56:03,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2020-10-15 02:56:03,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 1585. [2020-10-15 02:56:03,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1585 states. [2020-10-15 02:56:03,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 2263 transitions. [2020-10-15 02:56:03,609 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 2263 transitions. Word has length 98 [2020-10-15 02:56:03,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:56:03,610 INFO L479 AbstractCegarLoop]: Abstraction has 1585 states and 2263 transitions. [2020-10-15 02:56:03,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:56:03,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 2263 transitions. [2020-10-15 02:56:03,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-15 02:56:03,613 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:56:03,614 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:56:03,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:56:03,614 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:56:03,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:56:03,615 INFO L82 PathProgramCache]: Analyzing trace with hash 290574210, now seen corresponding path program 1 times [2020-10-15 02:56:03,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:56:03,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2017112931] [2020-10-15 02:56:03,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:56:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:56:03,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:03,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:03,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:03,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:03,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:03,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:05,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:08,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:08,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:08,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:56:08,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:56:08,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 02:56:08,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 02:56:08,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:56:08,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:56:08,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:56:08,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:56:08,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-15 02:56:08,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:56:08,938 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-15 02:56:08,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:56:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:56:08,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:08,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:56:08,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:56:08,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:56:08,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:56:08,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:56:08,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:56:08,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:56:08,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:56:08,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:56:08,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:56:09,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:56:09,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2017112931] [2020-10-15 02:56:09,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:56:09,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:56:09,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777429573] [2020-10-15 02:56:09,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:56:09,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:56:09,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:56:09,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:56:09,025 INFO L87 Difference]: Start difference. First operand 1585 states and 2263 transitions. Second operand 5 states. [2020-10-15 02:56:11,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:56:11,306 INFO L93 Difference]: Finished difference Result 3999 states and 5766 transitions. [2020-10-15 02:56:11,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:56:11,306 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 99 [2020-10-15 02:56:11,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:56:11,323 INFO L225 Difference]: With dead ends: 3999 [2020-10-15 02:56:11,323 INFO L226 Difference]: Without dead ends: 3030 [2020-10-15 02:56:11,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:56:11,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2020-10-15 02:56:11,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 3007. [2020-10-15 02:56:11,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3007 states. [2020-10-15 02:56:11,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3007 states to 3007 states and 4244 transitions. [2020-10-15 02:56:11,599 INFO L78 Accepts]: Start accepts. Automaton has 3007 states and 4244 transitions. Word has length 99 [2020-10-15 02:56:11,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:56:11,600 INFO L479 AbstractCegarLoop]: Abstraction has 3007 states and 4244 transitions. [2020-10-15 02:56:11,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:56:11,600 INFO L276 IsEmpty]: Start isEmpty. Operand 3007 states and 4244 transitions. [2020-10-15 02:56:11,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-15 02:56:11,605 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:56:11,605 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:56:11,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:56:11,606 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:56:11,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:56:11,606 INFO L82 PathProgramCache]: Analyzing trace with hash -697217733, now seen corresponding path program 1 times [2020-10-15 02:56:11,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:56:11,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455908421] [2020-10-15 02:56:11,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:56:11,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:56:11,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:11,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:11,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:11,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:11,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:11,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:13,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:13,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:15,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:16,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:56:16,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-15 02:56:16,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 02:56:16,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 02:56:16,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:56:16,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:56:16,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:56:16,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:56:16,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-15 02:56:16,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:56:16,883 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-15 02:56:16,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:56:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:56:16,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:16,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:56:16,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:56:16,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:56:16,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:56:16,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:56:16,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:56:16,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:56:16,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:56:16,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:56:16,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:56:16,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:56:16,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [455908421] [2020-10-15 02:56:16,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:56:16,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:56:16,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88889618] [2020-10-15 02:56:16,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:56:16,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:56:16,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:56:16,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:56:16,961 INFO L87 Difference]: Start difference. First operand 3007 states and 4244 transitions. Second operand 5 states. [2020-10-15 02:56:18,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:56:18,861 INFO L93 Difference]: Finished difference Result 8633 states and 12116 transitions. [2020-10-15 02:56:18,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:56:18,862 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2020-10-15 02:56:18,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:56:18,887 INFO L225 Difference]: With dead ends: 8633 [2020-10-15 02:56:18,887 INFO L226 Difference]: Without dead ends: 5740 [2020-10-15 02:56:18,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:56:18,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5740 states. [2020-10-15 02:56:19,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5740 to 5683. [2020-10-15 02:56:19,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5683 states. [2020-10-15 02:56:19,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5683 states to 5683 states and 7890 transitions. [2020-10-15 02:56:19,254 INFO L78 Accepts]: Start accepts. Automaton has 5683 states and 7890 transitions. Word has length 100 [2020-10-15 02:56:19,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:56:19,254 INFO L479 AbstractCegarLoop]: Abstraction has 5683 states and 7890 transitions. [2020-10-15 02:56:19,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:56:19,254 INFO L276 IsEmpty]: Start isEmpty. Operand 5683 states and 7890 transitions. [2020-10-15 02:56:19,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-15 02:56:19,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:56:19,263 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:56:19,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:56:19,264 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:56:19,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:56:19,264 INFO L82 PathProgramCache]: Analyzing trace with hash -656338877, now seen corresponding path program 1 times [2020-10-15 02:56:19,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:56:19,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733849870] [2020-10-15 02:56:19,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:56:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:56:19,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:19,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:19,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:19,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:19,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:19,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:23,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:24,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:56:24,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-15 02:56:24,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:56:24,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 02:56:24,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:56:24,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:56:24,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:56:24,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:56:24,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:56:24,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:56:24,522 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-15 02:56:24,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:56:24,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:56:24,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:24,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:56:24,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:56:24,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:56:24,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:56:24,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:56:24,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:56:24,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:56:24,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:56:24,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:56:24,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:56:24,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:56:24,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733849870] [2020-10-15 02:56:24,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:56:24,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:56:24,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260260294] [2020-10-15 02:56:24,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:56:24,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:56:24,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:56:24,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:56:24,568 INFO L87 Difference]: Start difference. First operand 5683 states and 7890 transitions. Second operand 5 states. [2020-10-15 02:56:26,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:56:26,900 INFO L93 Difference]: Finished difference Result 14814 states and 20815 transitions. [2020-10-15 02:56:26,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:56:26,900 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2020-10-15 02:56:26,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:56:26,937 INFO L225 Difference]: With dead ends: 14814 [2020-10-15 02:56:26,938 INFO L226 Difference]: Without dead ends: 10949 [2020-10-15 02:56:26,947 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:56:26,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10949 states. [2020-10-15 02:56:27,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10949 to 10937. [2020-10-15 02:56:27,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10937 states. [2020-10-15 02:56:27,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10937 states to 10937 states and 14989 transitions. [2020-10-15 02:56:27,623 INFO L78 Accepts]: Start accepts. Automaton has 10937 states and 14989 transitions. Word has length 101 [2020-10-15 02:56:27,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:56:27,623 INFO L479 AbstractCegarLoop]: Abstraction has 10937 states and 14989 transitions. [2020-10-15 02:56:27,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:56:27,624 INFO L276 IsEmpty]: Start isEmpty. Operand 10937 states and 14989 transitions. [2020-10-15 02:56:27,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-15 02:56:27,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:56:27,641 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:56:27,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:56:27,642 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:56:27,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:56:27,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1396458746, now seen corresponding path program 1 times [2020-10-15 02:56:27,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:56:27,643 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1256335506] [2020-10-15 02:56:27,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:56:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:56:27,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:27,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:27,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:27,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:27,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:27,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:32,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:56:32,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-15 02:56:32,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:56:32,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 02:56:32,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:56:32,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:56:32,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:56:32,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 02:56:32,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 02:56:32,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:56:32,909 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-15 02:56:32,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:56:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:56:32,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:32,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:56:32,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:56:32,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:56:32,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:56:32,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:56:32,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:56:32,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:56:32,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:56:32,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:56:32,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:56:32,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:56:32,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1256335506] [2020-10-15 02:56:32,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:56:32,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:56:32,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108036917] [2020-10-15 02:56:32,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:56:32,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:56:32,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:56:32,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:56:32,953 INFO L87 Difference]: Start difference. First operand 10937 states and 14989 transitions. Second operand 5 states. [2020-10-15 02:56:34,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:56:34,246 INFO L93 Difference]: Finished difference Result 17972 states and 24586 transitions. [2020-10-15 02:56:34,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:56:34,246 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2020-10-15 02:56:34,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:56:34,271 INFO L225 Difference]: With dead ends: 17972 [2020-10-15 02:56:34,271 INFO L226 Difference]: Without dead ends: 7077 [2020-10-15 02:56:34,289 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:56:34,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7077 states. [2020-10-15 02:56:34,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7077 to 7076. [2020-10-15 02:56:34,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7076 states. [2020-10-15 02:56:34,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7076 states to 7076 states and 9654 transitions. [2020-10-15 02:56:34,676 INFO L78 Accepts]: Start accepts. Automaton has 7076 states and 9654 transitions. Word has length 102 [2020-10-15 02:56:34,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:56:34,677 INFO L479 AbstractCegarLoop]: Abstraction has 7076 states and 9654 transitions. [2020-10-15 02:56:34,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:56:34,677 INFO L276 IsEmpty]: Start isEmpty. Operand 7076 states and 9654 transitions. [2020-10-15 02:56:34,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-15 02:56:34,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:56:34,687 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:56:34,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:56:34,688 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:56:34,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:56:34,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1937277795, now seen corresponding path program 1 times [2020-10-15 02:56:34,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:56:34,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1715255243] [2020-10-15 02:56:34,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:56:34,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:56:34,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:34,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:34,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:34,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:34,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:36,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:36,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:36,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:39,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:56:39,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-15 02:56:39,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 02:56:39,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 02:56:39,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:56:39,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:56:39,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:56:39,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:56:39,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-15 02:56:39,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:56:39,914 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-15 02:56:39,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:56:39,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:56:39,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:39,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:56:39,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:56:39,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:56:39,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:56:39,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:56:39,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:56:39,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:56:39,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:56:39,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:56:39,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:56:39,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:56:39,952 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1715255243] [2020-10-15 02:56:39,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:56:39,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:56:39,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168558410] [2020-10-15 02:56:39,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:56:39,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:56:39,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:56:39,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:56:39,954 INFO L87 Difference]: Start difference. First operand 7076 states and 9654 transitions. Second operand 5 states. [2020-10-15 02:56:40,151 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-15 02:56:42,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:56:42,069 INFO L93 Difference]: Finished difference Result 12744 states and 17349 transitions. [2020-10-15 02:56:42,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 02:56:42,070 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 105 [2020-10-15 02:56:42,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:56:42,085 INFO L225 Difference]: With dead ends: 12744 [2020-10-15 02:56:42,085 INFO L226 Difference]: Without dead ends: 7049 [2020-10-15 02:56:42,096 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 02:56:42,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7049 states. [2020-10-15 02:56:42,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7049 to 7035. [2020-10-15 02:56:42,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7035 states. [2020-10-15 02:56:42,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7035 states to 7035 states and 9558 transitions. [2020-10-15 02:56:42,451 INFO L78 Accepts]: Start accepts. Automaton has 7035 states and 9558 transitions. Word has length 105 [2020-10-15 02:56:42,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:56:42,451 INFO L479 AbstractCegarLoop]: Abstraction has 7035 states and 9558 transitions. [2020-10-15 02:56:42,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:56:42,452 INFO L276 IsEmpty]: Start isEmpty. Operand 7035 states and 9558 transitions. [2020-10-15 02:56:42,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-15 02:56:42,461 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:56:42,462 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:56:42,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:56:42,462 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:56:42,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:56:42,462 INFO L82 PathProgramCache]: Analyzing trace with hash -2102397169, now seen corresponding path program 1 times [2020-10-15 02:56:42,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:56:42,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1590735295] [2020-10-15 02:56:42,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:56:42,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:56:42,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:42,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:42,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:42,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:42,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:47,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:56:47,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-15 02:56:47,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:56:47,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-15 02:56:47,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:56:47,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:56:47,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:56:47,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:56:47,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:56:47,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:56:47,793 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-15 02:56:47,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:56:47,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:56:47,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:47,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:56:47,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:56:47,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:56:47,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:56:47,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:56:47,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:56:47,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:56:47,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:56:47,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:56:47,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:56:47,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:56:47,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1590735295] [2020-10-15 02:56:47,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:56:47,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:56:47,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523075325] [2020-10-15 02:56:47,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:56:47,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:56:47,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:56:47,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:56:47,834 INFO L87 Difference]: Start difference. First operand 7035 states and 9558 transitions. Second operand 5 states. [2020-10-15 02:56:49,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:56:49,015 INFO L93 Difference]: Finished difference Result 12342 states and 16822 transitions. [2020-10-15 02:56:49,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:56:49,015 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 106 [2020-10-15 02:56:49,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:56:49,027 INFO L225 Difference]: With dead ends: 12342 [2020-10-15 02:56:49,027 INFO L226 Difference]: Without dead ends: 5706 [2020-10-15 02:56:49,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:56:49,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5706 states. [2020-10-15 02:56:49,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5706 to 5706. [2020-10-15 02:56:49,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5706 states. [2020-10-15 02:56:49,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5706 states to 5706 states and 7727 transitions. [2020-10-15 02:56:49,438 INFO L78 Accepts]: Start accepts. Automaton has 5706 states and 7727 transitions. Word has length 106 [2020-10-15 02:56:49,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:56:49,438 INFO L479 AbstractCegarLoop]: Abstraction has 5706 states and 7727 transitions. [2020-10-15 02:56:49,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:56:49,438 INFO L276 IsEmpty]: Start isEmpty. Operand 5706 states and 7727 transitions. [2020-10-15 02:56:49,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-15 02:56:49,444 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:56:49,444 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:56:49,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:56:49,445 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:56:49,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:56:49,445 INFO L82 PathProgramCache]: Analyzing trace with hash 728057739, now seen corresponding path program 1 times [2020-10-15 02:56:49,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:56:49,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1228925897] [2020-10-15 02:56:49,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:56:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:56:49,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:49,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:49,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:49,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:52,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:56:52,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-15 02:56:52,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:56:52,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3179 [2020-10-15 02:56:52,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:56:52,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:56:52,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:56:52,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-15 02:56:52,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:56:52,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:56:52,866 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-15 02:56:52,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:56:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:56:52,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:52,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:56:52,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:56:52,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:56:52,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:56:52,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:56:52,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:56:52,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:56:52,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:56:52,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:56:52,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:56:52,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:56:52,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1228925897] [2020-10-15 02:56:52,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:56:52,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:56:52,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271669420] [2020-10-15 02:56:52,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:56:52,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:56:52,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:56:52,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:56:52,895 INFO L87 Difference]: Start difference. First operand 5706 states and 7727 transitions. Second operand 5 states. [2020-10-15 02:56:54,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:56:54,040 INFO L93 Difference]: Finished difference Result 10134 states and 13747 transitions. [2020-10-15 02:56:54,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:56:54,041 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 108 [2020-10-15 02:56:54,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:56:54,050 INFO L225 Difference]: With dead ends: 10134 [2020-10-15 02:56:54,050 INFO L226 Difference]: Without dead ends: 4711 [2020-10-15 02:56:54,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:56:54,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4711 states. [2020-10-15 02:56:54,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4711 to 4709. [2020-10-15 02:56:54,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4709 states. [2020-10-15 02:56:54,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4709 states to 4709 states and 6352 transitions. [2020-10-15 02:56:54,406 INFO L78 Accepts]: Start accepts. Automaton has 4709 states and 6352 transitions. Word has length 108 [2020-10-15 02:56:54,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:56:54,407 INFO L479 AbstractCegarLoop]: Abstraction has 4709 states and 6352 transitions. [2020-10-15 02:56:54,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:56:54,407 INFO L276 IsEmpty]: Start isEmpty. Operand 4709 states and 6352 transitions. [2020-10-15 02:56:54,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-15 02:56:54,412 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:56:54,412 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:56:54,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 02:56:54,412 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:56:54,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:56:54,413 INFO L82 PathProgramCache]: Analyzing trace with hash 236318523, now seen corresponding path program 1 times [2020-10-15 02:56:54,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:56:54,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [315222794] [2020-10-15 02:56:54,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:56:54,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:56:54,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:54,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:54,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:54,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:54,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:54,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:57,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:59,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:56:59,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-15 02:56:59,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:56:59,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4610 [2020-10-15 02:56:59,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:56:59,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:56:59,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:56:59,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:56:59,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-15 02:56:59,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:56:59,256 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-15 02:56:59,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:56:59,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:56:59,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:56:59,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:56:59,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:56:59,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:56:59,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:56:59,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:56:59,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:56:59,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:56:59,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:56:59,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:56:59,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:56:59,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:56:59,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [315222794] [2020-10-15 02:56:59,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:56:59,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:56:59,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559129618] [2020-10-15 02:56:59,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:56:59,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:56:59,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:56:59,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:56:59,299 INFO L87 Difference]: Start difference. First operand 4709 states and 6352 transitions. Second operand 5 states. [2020-10-15 02:56:59,509 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-15 02:57:01,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:57:01,249 INFO L93 Difference]: Finished difference Result 8410 states and 11313 transitions. [2020-10-15 02:57:01,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 02:57:01,250 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-10-15 02:57:01,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:57:01,259 INFO L225 Difference]: With dead ends: 8410 [2020-10-15 02:57:01,259 INFO L226 Difference]: Without dead ends: 4709 [2020-10-15 02:57:01,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 02:57:01,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4709 states. [2020-10-15 02:57:01,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4709 to 4697. [2020-10-15 02:57:01,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4697 states. [2020-10-15 02:57:01,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4697 states to 4697 states and 6308 transitions. [2020-10-15 02:57:01,608 INFO L78 Accepts]: Start accepts. Automaton has 4697 states and 6308 transitions. Word has length 109 [2020-10-15 02:57:01,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:57:01,608 INFO L479 AbstractCegarLoop]: Abstraction has 4697 states and 6308 transitions. [2020-10-15 02:57:01,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:57:01,609 INFO L276 IsEmpty]: Start isEmpty. Operand 4697 states and 6308 transitions. [2020-10-15 02:57:01,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-15 02:57:01,613 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:57:01,613 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:57:01,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 02:57:01,614 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:57:01,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:57:01,614 INFO L82 PathProgramCache]: Analyzing trace with hash 876279249, now seen corresponding path program 1 times [2020-10-15 02:57:01,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:57:01,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [604816853] [2020-10-15 02:57:01,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:57:01,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:57:01,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:01,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:01,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:03,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:57:03,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-15 02:57:03,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:57:03,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1562 [2020-10-15 02:57:03,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:57:03,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:57:03,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:57:03,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-15 02:57:03,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 02:57:03,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:57:03,419 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-15 02:57:03,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:57:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:57:03,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:03,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:57:03,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:57:03,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:57:03,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:57:03,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:57:03,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:57:03,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:57:03,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:57:03,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:57:03,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:57:03,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:57:03,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [604816853] [2020-10-15 02:57:03,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:57:03,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:57:03,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121342958] [2020-10-15 02:57:03,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:57:03,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:57:03,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:57:03,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:57:03,446 INFO L87 Difference]: Start difference. First operand 4697 states and 6308 transitions. Second operand 5 states. [2020-10-15 02:57:04,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:57:04,530 INFO L93 Difference]: Finished difference Result 8299 states and 11178 transitions. [2020-10-15 02:57:04,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:57:04,531 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 110 [2020-10-15 02:57:04,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:57:04,536 INFO L225 Difference]: With dead ends: 8299 [2020-10-15 02:57:04,537 INFO L226 Difference]: Without dead ends: 3848 [2020-10-15 02:57:04,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:57:04,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3848 states. [2020-10-15 02:57:04,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3848 to 3848. [2020-10-15 02:57:04,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3848 states. [2020-10-15 02:57:04,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3848 states to 3848 states and 5148 transitions. [2020-10-15 02:57:04,813 INFO L78 Accepts]: Start accepts. Automaton has 3848 states and 5148 transitions. Word has length 110 [2020-10-15 02:57:04,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:57:04,813 INFO L479 AbstractCegarLoop]: Abstraction has 3848 states and 5148 transitions. [2020-10-15 02:57:04,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:57:04,814 INFO L276 IsEmpty]: Start isEmpty. Operand 3848 states and 5148 transitions. [2020-10-15 02:57:04,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-15 02:57:04,818 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:57:04,818 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:57:04,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 02:57:04,818 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:57:04,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:57:04,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1455532818, now seen corresponding path program 1 times [2020-10-15 02:57:04,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:57:04,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1684713362] [2020-10-15 02:57:04,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:57:04,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:57:04,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:04,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:04,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:04,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:05,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:06,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:09,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:09,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:57:09,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-15 02:57:09,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:57:09,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 02:57:09,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:57:09,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:57:09,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:57:09,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:57:09,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-15 02:57:09,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:57:10,160 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-15 02:57:10,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:57:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:57:10,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:10,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:57:10,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:57:10,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:57:10,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:57:10,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:57:10,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:57:10,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:57:10,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:57:10,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:57:10,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:57:10,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:57:10,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1684713362] [2020-10-15 02:57:10,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:57:10,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:57:10,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281770216] [2020-10-15 02:57:10,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:57:10,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:57:10,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:57:10,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:57:10,206 INFO L87 Difference]: Start difference. First operand 3848 states and 5148 transitions. Second operand 11 states. [2020-10-15 02:57:10,409 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-15 02:57:15,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:57:15,216 INFO L93 Difference]: Finished difference Result 31089 states and 46375 transitions. [2020-10-15 02:57:15,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-15 02:57:15,216 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 112 [2020-10-15 02:57:15,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:57:15,243 INFO L225 Difference]: With dead ends: 31089 [2020-10-15 02:57:15,243 INFO L226 Difference]: Without dead ends: 28589 [2020-10-15 02:57:15,251 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=426, Invalid=1380, Unknown=0, NotChecked=0, Total=1806 [2020-10-15 02:57:15,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28589 states. [2020-10-15 02:57:15,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28589 to 8559. [2020-10-15 02:57:15,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8559 states. [2020-10-15 02:57:15,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8559 states to 8559 states and 11863 transitions. [2020-10-15 02:57:15,930 INFO L78 Accepts]: Start accepts. Automaton has 8559 states and 11863 transitions. Word has length 112 [2020-10-15 02:57:15,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:57:15,930 INFO L479 AbstractCegarLoop]: Abstraction has 8559 states and 11863 transitions. [2020-10-15 02:57:15,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:57:15,931 INFO L276 IsEmpty]: Start isEmpty. Operand 8559 states and 11863 transitions. [2020-10-15 02:57:15,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-15 02:57:15,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:57:15,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:57:15,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 02:57:15,938 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:57:15,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:57:15,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1463723635, now seen corresponding path program 1 times [2020-10-15 02:57:15,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:57:15,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [541859869] [2020-10-15 02:57:15,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:57:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:57:15,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:16,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:16,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:17,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:57:17,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-15 02:57:17,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:57:17,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1494 [2020-10-15 02:57:17,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:57:17,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:57:17,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:57:17,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:57:17,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-15 02:57:17,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:57:17,670 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-15 02:57:17,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:57:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:57:17,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:17,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:57:17,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:57:17,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:57:17,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:57:17,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:57:17,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:57:17,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:57:17,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:57:17,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:57:17,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:57:17,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:57:17,721 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [541859869] [2020-10-15 02:57:17,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:57:17,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:57:17,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843021637] [2020-10-15 02:57:17,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 02:57:17,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:57:17,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 02:57:17,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:57:17,722 INFO L87 Difference]: Start difference. First operand 8559 states and 11863 transitions. Second operand 6 states. [2020-10-15 02:57:17,933 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-15 02:57:19,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:57:19,948 INFO L93 Difference]: Finished difference Result 19072 states and 27829 transitions. [2020-10-15 02:57:19,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 02:57:19,949 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2020-10-15 02:57:19,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:57:19,963 INFO L225 Difference]: With dead ends: 19072 [2020-10-15 02:57:19,963 INFO L226 Difference]: Without dead ends: 12230 [2020-10-15 02:57:19,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 02:57:19,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12230 states. [2020-10-15 02:57:21,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12230 to 12192. [2020-10-15 02:57:21,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12192 states. [2020-10-15 02:57:21,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12192 states to 12192 states and 17797 transitions. [2020-10-15 02:57:21,059 INFO L78 Accepts]: Start accepts. Automaton has 12192 states and 17797 transitions. Word has length 112 [2020-10-15 02:57:21,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:57:21,059 INFO L479 AbstractCegarLoop]: Abstraction has 12192 states and 17797 transitions. [2020-10-15 02:57:21,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 02:57:21,060 INFO L276 IsEmpty]: Start isEmpty. Operand 12192 states and 17797 transitions. [2020-10-15 02:57:21,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-15 02:57:21,063 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:57:21,064 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:57:21,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 02:57:21,064 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:57:21,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:57:21,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1301085613, now seen corresponding path program 1 times [2020-10-15 02:57:21,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:57:21,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [720133063] [2020-10-15 02:57:21,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:57:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:57:21,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:21,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:21,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:21,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:21,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:21,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:22,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:26,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:57:26,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-15 02:57:26,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:57:26,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 02:57:26,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:57:26,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:57:26,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:57:26,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:57:26,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-15 02:57:26,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:57:26,442 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-15 02:57:26,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:57:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:57:26,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:26,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:57:26,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:57:26,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:57:26,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:57:26,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:57:26,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:57:26,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:57:26,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:57:26,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:57:26,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:57:26,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:57:26,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [720133063] [2020-10-15 02:57:26,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:57:26,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:57:26,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489915363] [2020-10-15 02:57:26,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:57:26,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:57:26,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:57:26,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:57:26,484 INFO L87 Difference]: Start difference. First operand 12192 states and 17797 transitions. Second operand 11 states. [2020-10-15 02:57:26,703 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:57:34,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:57:34,298 INFO L93 Difference]: Finished difference Result 53676 states and 83155 transitions. [2020-10-15 02:57:34,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-15 02:57:34,299 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 112 [2020-10-15 02:57:34,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:57:34,361 INFO L225 Difference]: With dead ends: 53676 [2020-10-15 02:57:34,361 INFO L226 Difference]: Without dead ends: 53610 [2020-10-15 02:57:34,375 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=154, Invalid=548, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:57:34,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53610 states. [2020-10-15 02:57:35,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53610 to 12182. [2020-10-15 02:57:35,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12182 states. [2020-10-15 02:57:35,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12182 states to 12182 states and 17777 transitions. [2020-10-15 02:57:35,759 INFO L78 Accepts]: Start accepts. Automaton has 12182 states and 17777 transitions. Word has length 112 [2020-10-15 02:57:35,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:57:35,759 INFO L479 AbstractCegarLoop]: Abstraction has 12182 states and 17777 transitions. [2020-10-15 02:57:35,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:57:35,759 INFO L276 IsEmpty]: Start isEmpty. Operand 12182 states and 17777 transitions. [2020-10-15 02:57:35,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-15 02:57:35,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:57:35,764 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:57:35,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 02:57:35,764 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:57:35,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:57:35,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1309276430, now seen corresponding path program 1 times [2020-10-15 02:57:35,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:57:35,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [362094402] [2020-10-15 02:57:35,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:57:35,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:57:35,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:35,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:36,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:57:36,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-15 02:57:36,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:57:36,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1147 [2020-10-15 02:57:36,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:57:36,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:57:36,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:57:36,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-15 02:57:36,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:57:36,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:57:37,144 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-15 02:57:37,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:57:37,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:57:37,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:37,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:57:37,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:57:37,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:57:37,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:57:37,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:57:37,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:57:37,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:57:37,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:57:37,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:57:37,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:57:37,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:57:37,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [362094402] [2020-10-15 02:57:37,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:57:37,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:57:37,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065848716] [2020-10-15 02:57:37,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:57:37,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:57:37,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:57:37,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:57:37,172 INFO L87 Difference]: Start difference. First operand 12182 states and 17777 transitions. Second operand 5 states. [2020-10-15 02:57:39,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:57:39,088 INFO L93 Difference]: Finished difference Result 20838 states and 30572 transitions. [2020-10-15 02:57:39,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:57:39,089 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2020-10-15 02:57:39,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:57:39,099 INFO L225 Difference]: With dead ends: 20838 [2020-10-15 02:57:39,100 INFO L226 Difference]: Without dead ends: 10490 [2020-10-15 02:57:39,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:57:39,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10490 states. [2020-10-15 02:57:40,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10490 to 10481. [2020-10-15 02:57:40,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10481 states. [2020-10-15 02:57:40,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10481 states to 10481 states and 15239 transitions. [2020-10-15 02:57:40,156 INFO L78 Accepts]: Start accepts. Automaton has 10481 states and 15239 transitions. Word has length 112 [2020-10-15 02:57:40,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:57:40,156 INFO L479 AbstractCegarLoop]: Abstraction has 10481 states and 15239 transitions. [2020-10-15 02:57:40,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:57:40,156 INFO L276 IsEmpty]: Start isEmpty. Operand 10481 states and 15239 transitions. [2020-10-15 02:57:40,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-15 02:57:40,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:57:40,160 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:57:40,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 02:57:40,160 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:57:40,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:57:40,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1842906248, now seen corresponding path program 1 times [2020-10-15 02:57:40,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:57:40,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [389983611] [2020-10-15 02:57:40,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:57:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:57:40,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:40,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:40,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:40,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:40,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:41,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:41,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:41,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:41,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:41,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:45,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:57:45,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-15 02:57:45,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 02:57:45,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-15 02:57:45,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:57:45,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:57:45,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:57:45,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:57:45,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-15 02:57:45,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:57:45,430 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-15 02:57:45,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:57:45,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:57:45,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:45,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:57:45,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:57:45,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:57:45,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:57:45,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:57:45,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:57:45,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:57:45,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:57:45,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:57:45,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:57:45,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:57:45,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [389983611] [2020-10-15 02:57:45,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:57:45,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:57:45,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32680153] [2020-10-15 02:57:45,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:57:45,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:57:45,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:57:45,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:57:45,465 INFO L87 Difference]: Start difference. First operand 10481 states and 15239 transitions. Second operand 5 states. [2020-10-15 02:57:45,661 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-15 02:57:48,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:57:48,363 INFO L93 Difference]: Finished difference Result 17509 states and 25541 transitions. [2020-10-15 02:57:48,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 02:57:48,364 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 113 [2020-10-15 02:57:48,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:57:48,375 INFO L225 Difference]: With dead ends: 17509 [2020-10-15 02:57:48,375 INFO L226 Difference]: Without dead ends: 10502 [2020-10-15 02:57:48,385 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:57:48,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10502 states. [2020-10-15 02:57:49,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10502 to 10473. [2020-10-15 02:57:49,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10473 states. [2020-10-15 02:57:49,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10473 states to 10473 states and 15143 transitions. [2020-10-15 02:57:49,608 INFO L78 Accepts]: Start accepts. Automaton has 10473 states and 15143 transitions. Word has length 113 [2020-10-15 02:57:49,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:57:49,608 INFO L479 AbstractCegarLoop]: Abstraction has 10473 states and 15143 transitions. [2020-10-15 02:57:49,608 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:57:49,608 INFO L276 IsEmpty]: Start isEmpty. Operand 10473 states and 15143 transitions. [2020-10-15 02:57:49,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-15 02:57:49,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:57:49,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:57:49,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 02:57:49,612 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:57:49,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:57:49,612 INFO L82 PathProgramCache]: Analyzing trace with hash -2035974663, now seen corresponding path program 1 times [2020-10-15 02:57:49,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:57:49,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [3712119] [2020-10-15 02:57:49,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:57:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:57:49,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:49,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:50,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:50,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:51,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:54,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:57:54,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-15 02:57:54,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:57:54,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-15 02:57:54,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:57:54,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:57:54,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:57:54,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:57:54,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-15 02:57:54,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:57:55,042 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 35 [2020-10-15 02:57:55,260 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 36 [2020-10-15 02:57:56,022 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-15 02:57:56,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:57:56,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:57:56,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:57:56,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:57:56,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:57:56,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:57:56,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:57:56,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:57:56,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:57:56,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:57:56,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:57:56,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:57:56,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:57:56,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:57:56,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [3712119] [2020-10-15 02:57:56,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:57:56,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-15 02:57:56,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218969757] [2020-10-15 02:57:56,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-15 02:57:56,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:57:56,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-15 02:57:56,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:57:56,108 INFO L87 Difference]: Start difference. First operand 10473 states and 15143 transitions. Second operand 19 states. [2020-10-15 02:57:56,386 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-15 02:57:57,107 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 39 [2020-10-15 02:57:57,328 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2020-10-15 02:57:57,691 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 64 [2020-10-15 02:57:58,024 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 76 [2020-10-15 02:57:58,785 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 96 [2020-10-15 02:57:59,321 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 101 [2020-10-15 02:57:59,533 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2020-10-15 02:57:59,804 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2020-10-15 02:58:00,001 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2020-10-15 02:58:00,638 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 106 [2020-10-15 02:58:00,811 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2020-10-15 02:58:01,123 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2020-10-15 02:58:01,343 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2020-10-15 02:58:01,640 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2020-10-15 02:58:04,973 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 70 [2020-10-15 02:58:06,567 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 102 [2020-10-15 02:58:08,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:58:08,755 INFO L93 Difference]: Finished difference Result 22258 states and 32278 transitions. [2020-10-15 02:58:08,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-15 02:58:08,756 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 114 [2020-10-15 02:58:08,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:58:08,776 INFO L225 Difference]: With dead ends: 22258 [2020-10-15 02:58:08,776 INFO L226 Difference]: Without dead ends: 22245 [2020-10-15 02:58:08,780 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=297, Invalid=1109, Unknown=0, NotChecked=0, Total=1406 [2020-10-15 02:58:08,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22245 states. [2020-10-15 02:58:10,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22245 to 10835. [2020-10-15 02:58:10,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10835 states. [2020-10-15 02:58:10,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10835 states to 10835 states and 15569 transitions. [2020-10-15 02:58:10,226 INFO L78 Accepts]: Start accepts. Automaton has 10835 states and 15569 transitions. Word has length 114 [2020-10-15 02:58:10,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:58:10,227 INFO L479 AbstractCegarLoop]: Abstraction has 10835 states and 15569 transitions. [2020-10-15 02:58:10,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-15 02:58:10,227 INFO L276 IsEmpty]: Start isEmpty. Operand 10835 states and 15569 transitions. [2020-10-15 02:58:10,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-15 02:58:10,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:58:10,231 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:58:10,231 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 02:58:10,231 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:58:10,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:58:10,231 INFO L82 PathProgramCache]: Analyzing trace with hash 816360586, now seen corresponding path program 1 times [2020-10-15 02:58:10,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:58:10,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1521012929] [2020-10-15 02:58:10,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:58:10,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 02:58:10,262 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-15 02:58:10,263 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 02:58:10,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 02:58:10,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 02:58:10 BoogieIcfgContainer [2020-10-15 02:58:10,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 02:58:10,307 INFO L168 Benchmark]: Toolchain (without parser) took 151471.75 ms. Allocated memory was 146.8 MB in the beginning and 2.7 GB in the end (delta: 2.6 GB). Free memory was 101.3 MB in the beginning and 803.1 MB in the end (delta: -701.8 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2020-10-15 02:58:10,308 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 120.9 MB in the end (delta: 419.9 kB). Peak memory consumption was 419.9 kB. Max. memory is 7.1 GB. [2020-10-15 02:58:10,308 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.44 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 100.9 MB in the beginning and 172.5 MB in the end (delta: -71.6 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. [2020-10-15 02:58:10,309 INFO L168 Benchmark]: Boogie Preprocessor took 78.94 ms. Allocated memory is still 203.4 MB. Free memory was 172.5 MB in the beginning and 169.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-10-15 02:58:10,309 INFO L168 Benchmark]: RCFGBuilder took 1215.43 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 169.5 MB in the beginning and 184.8 MB in the end (delta: -15.3 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. [2020-10-15 02:58:10,310 INFO L168 Benchmark]: TraceAbstraction took 149468.47 ms. Allocated memory was 234.9 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 184.8 MB in the beginning and 803.1 MB in the end (delta: -618.4 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2020-10-15 02:58:10,313 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 120.9 MB in the end (delta: 419.9 kB). Peak memory consumption was 419.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 704.44 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 100.9 MB in the beginning and 172.5 MB in the end (delta: -71.6 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 78.94 ms. Allocated memory is still 203.4 MB. Free memory was 172.5 MB in the beginning and 169.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1215.43 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 169.5 MB in the beginning and 184.8 MB in the end (delta: -15.3 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 149468.47 ms. Allocated memory was 234.9 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 184.8 MB in the beginning and 803.1 MB in the end (delta: -618.4 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 527]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1] int __return_main; [L15] msg_t nomsg = (msg_t )-1; [L16] port_t p12 = 0; [L17] char p12_old = '\x0'; [L18] char p12_new = '\x0'; [L19] _Bool ep12 = 0; [L20] port_t p13 = 0; [L21] char p13_old = '\x0'; [L22] char p13_new = '\x0'; [L23] _Bool ep13 = 0; [L24] port_t p21 = 0; [L25] char p21_old = '\x0'; [L26] char p21_new = '\x0'; [L27] _Bool ep21 = 0; [L28] port_t p23 = 0; [L29] char p23_old = '\x0'; [L30] char p23_new = '\x0'; [L31] _Bool ep23 = 0; [L32] port_t p31 = 0; [L33] char p31_old = '\x0'; [L34] char p31_new = '\x0'; [L35] _Bool ep31 = 0; [L36] port_t p32 = 0; [L37] char p32_old = '\x0'; [L38] char p32_new = '\x0'; [L39] _Bool ep32 = 0; [L40] char id1 = '\x0'; [L41] unsigned char r1 = '\x0'; [L42] char st1 = '\x0'; [L43] char nl1 = '\x0'; [L44] char m1 = '\x0'; [L45] char max1 = '\x0'; [L46] _Bool mode1 = 0; [L47] char id2 = '\x0'; [L48] unsigned char r2 = '\x0'; [L49] char st2 = '\x0'; [L50] char nl2 = '\x0'; [L51] char m2 = '\x0'; [L52] char max2 = '\x0'; [L53] _Bool mode2 = 0; [L54] char id3 = '\x0'; [L55] unsigned char r3 = '\x0'; [L56] char st3 = '\x0'; [L57] char nl3 = '\x0'; [L58] char m3 = '\x0'; [L59] char max3 = '\x0'; [L60] _Bool mode3 = 0; [L64] void (*nodes[3])() = { &node1, &node2, &node3 }; [L68] int __return_1142; [L69] int __return_1270; [L70] int __return_1696; [L71] int __return_1389; [L72] int __return_1499; [L75] int main__c1; [L76] int main__i2; [L77] main__c1 = 0 [L78] ep12 = __VERIFIER_nondet_bool() [L79] ep13 = __VERIFIER_nondet_bool() [L80] ep21 = __VERIFIER_nondet_bool() [L81] ep23 = __VERIFIER_nondet_bool() [L82] ep31 = __VERIFIER_nondet_bool() [L83] ep32 = __VERIFIER_nondet_bool() [L84] id1 = __VERIFIER_nondet_char() [L85] r1 = __VERIFIER_nondet_uchar() [L86] st1 = __VERIFIER_nondet_char() [L87] nl1 = __VERIFIER_nondet_char() [L88] m1 = __VERIFIER_nondet_char() [L89] max1 = __VERIFIER_nondet_char() [L90] mode1 = __VERIFIER_nondet_bool() [L91] id2 = __VERIFIER_nondet_char() [L92] r2 = __VERIFIER_nondet_uchar() [L93] st2 = __VERIFIER_nondet_char() [L94] nl2 = __VERIFIER_nondet_char() [L95] m2 = __VERIFIER_nondet_char() [L96] max2 = __VERIFIER_nondet_char() [L97] mode2 = __VERIFIER_nondet_bool() [L98] id3 = __VERIFIER_nondet_char() [L99] r3 = __VERIFIER_nondet_uchar() [L100] st3 = __VERIFIER_nondet_char() [L101] nl3 = __VERIFIER_nondet_char() [L102] m3 = __VERIFIER_nondet_char() [L103] max3 = __VERIFIER_nondet_char() [L104] mode3 = __VERIFIER_nondet_bool() [L106] _Bool init__r121; [L107] _Bool init__r131; [L108] _Bool init__r211; [L109] _Bool init__r231; [L110] _Bool init__r311; [L111] _Bool init__r321; [L112] _Bool init__r122; [L113] int init__tmp; [L114] _Bool init__r132; [L115] int init__tmp___0; [L116] _Bool init__r212; [L117] int init__tmp___1; [L118] _Bool init__r232; [L119] int init__tmp___2; [L120] _Bool init__r312; [L121] int init__tmp___3; [L122] _Bool init__r322; [L123] int init__tmp___4; [L124] int init__tmp___5; [L125] init__r121 = ep12 [L126] init__r131 = ep13 [L127] init__r211 = ep21 [L128] init__r231 = ep23 [L129] init__r311 = ep31 [L130] init__r321 = ep32 [L131] COND FALSE !(!(init__r121 == 0)) [L1833] COND TRUE !(init__r131 == 0) [L1835] COND TRUE !(ep32 == 0) [L1837] init__tmp = 1 [L135] init__r122 = (_Bool)init__tmp [L136] COND TRUE !(init__r131 == 0) [L138] init__tmp___0 = 1 [L140] init__r132 = (_Bool)init__tmp___0 [L141] COND TRUE !(init__r211 == 0) [L143] init__tmp___1 = 1 [L145] init__r212 = (_Bool)init__tmp___1 [L146] COND FALSE !(!(init__r231 == 0)) [L1764] COND TRUE !(init__r211 == 0) [L1766] COND TRUE !(ep13 == 0) [L1768] init__tmp___2 = 1 [L150] init__r232 = (_Bool)init__tmp___2 [L151] COND FALSE !(!(init__r311 == 0)) [L1741] COND TRUE !(init__r321 == 0) [L1743] COND TRUE !(ep21 == 0) [L1745] init__tmp___3 = 1 [L155] init__r312 = (_Bool)init__tmp___3 [L156] COND TRUE !(init__r321 == 0) [L158] init__tmp___4 = 1 [L160] init__r322 = (_Bool)init__tmp___4 [L161] COND TRUE ((int)id1) != ((int)id2) [L163] COND TRUE ((int)id1) != ((int)id3) [L165] COND TRUE ((int)id2) != ((int)id3) [L167] COND TRUE ((int)id1) >= 0 [L169] COND TRUE ((int)id2) >= 0 [L171] COND TRUE ((int)id3) >= 0 [L173] COND TRUE ((int)r1) == 0 [L175] COND TRUE ((int)r2) == 0 [L177] COND TRUE ((int)r3) == 0 [L179] COND TRUE !(init__r122 == 0) [L181] COND TRUE !(init__r132 == 0) [L183] COND TRUE !(init__r212 == 0) [L185] COND TRUE !(init__r232 == 0) [L187] COND TRUE !(init__r312 == 0) [L189] COND TRUE !(init__r322 == 0) [L191] COND TRUE ((int)max1) == ((int)id1) [L193] COND TRUE ((int)max2) == ((int)id2) [L195] COND TRUE ((int)max3) == ((int)id3) [L197] COND TRUE ((int)st1) == 0 [L199] COND TRUE ((int)st2) == 0 [L201] COND TRUE ((int)st3) == 0 [L203] COND TRUE ((int)nl1) == 0 [L205] COND TRUE ((int)nl2) == 0 [L207] COND TRUE ((int)nl3) == 0 [L209] COND TRUE ((int)mode1) == 0 [L211] COND TRUE ((int)mode2) == 0 [L213] COND TRUE ((int)mode3) == 0 [L215] init__tmp___5 = 1 [L216] __return_1142 = init__tmp___5 [L217] main__i2 = __return_1142 [L218] COND TRUE main__i2 != 0 [L220] p12_old = nomsg [L221] p12_new = nomsg [L222] p13_old = nomsg [L223] p13_new = nomsg [L224] p21_old = nomsg [L225] p21_new = nomsg [L226] p23_old = nomsg [L227] p23_new = nomsg [L228] p31_old = nomsg [L229] p31_new = nomsg [L230] p32_old = nomsg [L231] p32_new = nomsg [L232] main__i2 = 0 [L234] COND FALSE !(!(mode1 == 0)) [L240] COND TRUE ((int)r1) < 2 [L242] COND FALSE !(!(ep12 == 0)) [L253] COND TRUE !(ep13 == 0) [L255] int node1____CPAchecker_TMP_1; [L256] COND TRUE max1 != nomsg [L258] COND TRUE p13_new == nomsg [L260] node1____CPAchecker_TMP_1 = max1 [L262] p13_new = node1____CPAchecker_TMP_1 [L264] mode1 = 1 [L266] COND FALSE !(!(mode2 == 0)) [L272] COND TRUE ((int)r2) < 2 [L274] COND TRUE !(ep21 == 0) [L276] int node2____CPAchecker_TMP_0; [L277] COND TRUE max2 != nomsg [L279] COND TRUE p21_new == nomsg [L281] node2____CPAchecker_TMP_0 = max2 [L283] p21_new = node2____CPAchecker_TMP_0 [L285] COND FALSE !(!(ep23 == 0)) [L296] mode2 = 1 [L298] COND FALSE !(!(mode3 == 0)) [L304] COND TRUE ((int)r3) < 2 [L306] COND FALSE !(!(ep31 == 0)) [L317] COND TRUE !(ep32 == 0) [L319] int node3____CPAchecker_TMP_1; [L320] COND TRUE max3 != nomsg [L322] COND TRUE p32_new == nomsg [L324] node3____CPAchecker_TMP_1 = max3 [L326] p32_new = node3____CPAchecker_TMP_1 [L328] mode3 = 1 [L329] p12_old = p12_new [L330] p12_new = nomsg [L331] p13_old = p13_new [L332] p13_new = nomsg [L333] p21_old = p21_new [L334] p21_new = nomsg [L335] p23_old = p23_new [L336] p23_new = nomsg [L337] p31_old = p31_new [L338] p31_new = nomsg [L339] p32_old = p32_new [L340] p32_new = nomsg [L342] int check__tmp; [L343] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1 [L345] COND TRUE (((int)st1) + ((int)nl1)) <= 1 [L347] COND TRUE (((int)st2) + ((int)nl2)) <= 1 [L349] COND TRUE (((int)st3) + ((int)nl3)) <= 1 [L351] COND FALSE !(((int)r1) >= 2) [L357] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) == 0 [L359] COND TRUE ((int)r1) < 2 [L361] COND FALSE !(((int)r1) >= 2) [L367] COND TRUE ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0 [L369] COND TRUE ((int)r1) < 2 [L371] check__tmp = 1 [L372] __return_1270 = check__tmp [L373] main__c1 = __return_1270 [L375] _Bool __tmp_1; [L376] __tmp_1 = main__c1 [L377] _Bool assert__arg; [L378] assert__arg = __tmp_1 [L379] COND FALSE !(assert__arg == 0) [L386] COND TRUE !(mode1 == 0) [L388] COND FALSE !(r1 == 255) [L394] r1 = r1 + 1 [L395] COND TRUE !(ep21 == 0) [L397] m1 = p21_old [L398] p21_old = nomsg [L399] COND FALSE !(((int)m1) > ((int)max1)) [L403] COND FALSE !(!(ep31 == 0)) [L411] COND TRUE ((int)r1) == 1 [L413] COND TRUE ((int)max1) == ((int)id1) [L415] st1 = 1 [L416] mode1 = 0 [L418] COND TRUE !(mode2 == 0) [L420] COND FALSE !(r2 == 255) [L426] r2 = r2 + 1 [L427] COND FALSE !(!(ep12 == 0)) [L435] COND TRUE !(ep32 == 0) [L437] m2 = p32_old [L438] p32_old = nomsg [L439] COND FALSE !(((int)m2) > ((int)max2)) [L443] COND FALSE !(((int)r2) == 2) [L449] mode2 = 0 [L451] COND TRUE !(mode3 == 0) [L453] COND FALSE !(r3 == 255) [L459] r3 = r3 + 1 [L460] COND TRUE !(ep13 == 0) [L462] m3 = p13_old [L463] p13_old = nomsg [L464] COND TRUE ((int)m3) > ((int)max3) [L466] max3 = m3 [L468] COND FALSE !(!(ep23 == 0)) [L476] COND FALSE !(((int)r3) == 2) [L482] mode3 = 0 [L483] p12_old = p12_new [L484] p12_new = nomsg [L485] p13_old = p13_new [L486] p13_new = nomsg [L487] p21_old = p21_new [L488] p21_new = nomsg [L489] p23_old = p23_new [L490] p23_new = nomsg [L491] p31_old = p31_new [L492] p31_new = nomsg [L493] p32_old = p32_new [L494] p32_new = nomsg [L496] int check__tmp; [L497] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1 [L499] COND TRUE (((int)st1) + ((int)nl1)) <= 1 [L501] COND TRUE (((int)st2) + ((int)nl2)) <= 1 [L503] COND TRUE (((int)st3) + ((int)nl3)) <= 1 [L505] COND FALSE !(((int)r1) >= 2) [L511] COND FALSE !(((((int)st1) + ((int)st2)) + ((int)st3)) == 0) [L517] check__tmp = 0 [L518] __return_1696 = check__tmp [L519] main__c1 = __return_1696 [L521] _Bool __tmp_2; [L522] __tmp_2 = main__c1 [L523] _Bool assert__arg; [L524] assert__arg = __tmp_2 [L525] COND TRUE assert__arg == 0 [L527] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 149.3s, OverallIterations: 19, TraceHistogramMax: 1, AutomataDifference: 54.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8825 SDtfs, 23649 SDslu, 16609 SDs, 0 SdLazy, 13629 SolverSat, 558 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 218 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 771 ImplicationChecksByTransitivity, 11.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12192occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 10.5s AutomataMinimizationTime, 18 MinimizatonAttempts, 73141 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 83.1s InterpolantComputationTime, 2020 NumberOfCodeBlocks, 2020 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1888 ConstructedInterpolants, 0 QuantifiedInterpolants, 1694174 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...