/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 SingleStatement --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=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/locks/test_locks_10.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:42:59,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:42:59,732 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:42:59,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:42:59,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:42:59,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:42:59,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:42:59,787 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:42:59,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:42:59,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:42:59,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:42:59,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:42:59,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:42:59,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:42:59,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:42:59,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:42:59,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:42:59,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:42:59,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:42:59,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:42:59,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:42:59,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:42:59,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:42:59,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:42:59,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:42:59,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:42:59,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:42:59,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:42:59,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:42:59,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:42:59,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:42:59,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:42:59,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:42:59,848 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:42:59,849 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:42:59,849 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:42:59,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:42:59,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:42:59,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:42:59,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:42:59,853 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:42:59,854 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 [2020-09-24 22:42:59,896 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:42:59,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:42:59,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:42:59,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:42:59,899 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:42:59,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:42:59,899 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:42:59,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:42:59,900 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:42:59,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:42:59,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:42:59,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:42:59,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:42:59,902 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:42:59,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:42:59,902 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:42:59,902 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:42:59,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:42:59,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:42:59,903 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:42:59,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:42:59,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:42:59,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:42:59,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:42:59,904 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:42:59,904 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:42:59,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:42:59,905 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:42:59,905 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:42:59,905 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 -> SingleStatement 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=HIGHLEXORDER;log-additional-information=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=HIGHLEXORDER;log-additional-information=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=HIGHLEXORDER;log-additional-information=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=HIGHLEXORDER;log-additional-information=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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:43:00,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:43:00,346 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:43:00,352 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:43:00,355 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:43:00,355 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:43:00,356 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_10.c [2020-09-24 22:43:00,436 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3b74fdada/f4779d3ca1b549f3a9a6c2775629410f/FLAG39c07f46e [2020-09-24 22:43:00,900 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:43:00,901 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/locks/test_locks_10.c [2020-09-24 22:43:00,911 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3b74fdada/f4779d3ca1b549f3a9a6c2775629410f/FLAG39c07f46e [2020-09-24 22:43:01,253 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3b74fdada/f4779d3ca1b549f3a9a6c2775629410f [2020-09-24 22:43:01,268 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:43:01,274 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:43:01,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:43:01,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:43:01,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:43:01,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:43:01" (1/1) ... [2020-09-24 22:43:01,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3666d953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:43:01, skipping insertion in model container [2020-09-24 22:43:01,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:43:01" (1/1) ... [2020-09-24 22:43:01,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:43:01,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:43:01,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:43:01,613 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:43:01,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:43:01,659 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:43:01,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:43:01 WrapperNode [2020-09-24 22:43:01,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:43:01,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:43:01,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:43:01,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:43:01,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:43:01" (1/1) ... [2020-09-24 22:43:01,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:43:01" (1/1) ... [2020-09-24 22:43:01,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:43:01" (1/1) ... [2020-09-24 22:43:01,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:43:01" (1/1) ... [2020-09-24 22:43:01,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:43:01" (1/1) ... [2020-09-24 22:43:01,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:43:01" (1/1) ... [2020-09-24 22:43:01,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:43:01" (1/1) ... [2020-09-24 22:43:01,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:43:01,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:43:01,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:43:01,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:43:01,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:43:01" (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 [2020-09-24 22:43:01,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:43:01,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:43:01,856 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:43:01,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:43:01,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:43:01,856 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:43:01,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:43:01,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:43:02,274 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:43:02,274 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 22:43:02,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:43:02 BoogieIcfgContainer [2020-09-24 22:43:02,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:43:02,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:43:02,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:43:02,286 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:43:02,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:43:01" (1/3) ... [2020-09-24 22:43:02,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68116f39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:43:02, skipping insertion in model container [2020-09-24 22:43:02,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:43:01" (2/3) ... [2020-09-24 22:43:02,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68116f39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:43:02, skipping insertion in model container [2020-09-24 22:43:02,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:43:02" (3/3) ... [2020-09-24 22:43:02,290 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_10.c [2020-09-24 22:43:02,302 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:43:02,312 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:43:02,334 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:43:02,367 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:43:02,367 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:43:02,367 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:43:02,367 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:43:02,368 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:43:02,368 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:43:02,368 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:43:02,368 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:43:02,391 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states. [2020-09-24 22:43:02,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-09-24 22:43:02,400 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:43:02,401 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] [2020-09-24 22:43:02,402 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:43:02,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:43:02,408 INFO L82 PathProgramCache]: Analyzing trace with hash -74913912, now seen corresponding path program 1 times [2020-09-24 22:43:02,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:43:02,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [947090241] [2020-09-24 22:43:02,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:43:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:02,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:02,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:02,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-24 22:43:02,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:02,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-09-24 22:43:02,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:02,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:43:02,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-09-24 22:43:02,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 22:43:02,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 22:43:02,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:43:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:02,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:02,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:02,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:43:02,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:02,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:43:02,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:02,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:43:02,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:43:02,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:43:02,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:43:02,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:43:02,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [947090241] [2020-09-24 22:43:02,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:43:02,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:43:02,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881465849] [2020-09-24 22:43:02,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:43:02,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:43:02,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:43:02,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:02,979 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 3 states. [2020-09-24 22:43:03,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:43:03,056 INFO L93 Difference]: Finished difference Result 257 states and 353 transitions. [2020-09-24 22:43:03,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:43:03,058 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-09-24 22:43:03,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:43:03,076 INFO L225 Difference]: With dead ends: 257 [2020-09-24 22:43:03,076 INFO L226 Difference]: Without dead ends: 176 [2020-09-24 22:43:03,081 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:03,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-09-24 22:43:03,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 174. [2020-09-24 22:43:03,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-09-24 22:43:03,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 230 transitions. [2020-09-24 22:43:03,145 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 230 transitions. Word has length 73 [2020-09-24 22:43:03,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:43:03,146 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 230 transitions. [2020-09-24 22:43:03,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:43:03,146 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 230 transitions. [2020-09-24 22:43:03,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-24 22:43:03,149 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:43:03,149 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:43:03,149 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:43:03,150 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:43:03,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:43:03,150 INFO L82 PathProgramCache]: Analyzing trace with hash 328701044, now seen corresponding path program 1 times [2020-09-24 22:43:03,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:43:03,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1043614210] [2020-09-24 22:43:03,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:43:03,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:03,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:03,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:03,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 22:43:03,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:03,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-24 22:43:03,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:03,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:43:03,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-24 22:43:03,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 22:43:03,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:43:03,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:43:03,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:03,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:03,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:03,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:43:03,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:03,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:43:03,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:03,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:43:03,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:43:03,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:43:03,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:43:03,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:43:03,400 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1043614210] [2020-09-24 22:43:03,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:43:03,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:43:03,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876428326] [2020-09-24 22:43:03,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:43:03,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:43:03,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:43:03,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:03,408 INFO L87 Difference]: Start difference. First operand 174 states and 230 transitions. Second operand 3 states. [2020-09-24 22:43:03,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:43:03,458 INFO L93 Difference]: Finished difference Result 211 states and 283 transitions. [2020-09-24 22:43:03,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:43:03,461 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-09-24 22:43:03,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:43:03,466 INFO L225 Difference]: With dead ends: 211 [2020-09-24 22:43:03,466 INFO L226 Difference]: Without dead ends: 209 [2020-09-24 22:43:03,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:03,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-09-24 22:43:03,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 174. [2020-09-24 22:43:03,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-09-24 22:43:03,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 229 transitions. [2020-09-24 22:43:03,496 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 229 transitions. Word has length 74 [2020-09-24 22:43:03,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:43:03,496 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 229 transitions. [2020-09-24 22:43:03,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:43:03,497 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 229 transitions. [2020-09-24 22:43:03,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-24 22:43:03,505 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:43:03,505 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:43:03,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:43:03,508 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:43:03,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:43:03,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1972879950, now seen corresponding path program 1 times [2020-09-24 22:43:03,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:43:03,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [564287115] [2020-09-24 22:43:03,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:43:03,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:03,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:03,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:03,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 22:43:03,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:03,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 22:43:03,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:03,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:43:03,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-24 22:43:03,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 22:43:03,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:03,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:43:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:03,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:03,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:03,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:43:03,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:03,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:43:03,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:03,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:43:03,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:43:03,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:43:03,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:03,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:43:03,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [564287115] [2020-09-24 22:43:03,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:43:03,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:43:03,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85615964] [2020-09-24 22:43:03,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:43:03,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:43:03,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:43:03,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:03,650 INFO L87 Difference]: Start difference. First operand 174 states and 229 transitions. Second operand 3 states. [2020-09-24 22:43:03,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:43:03,688 INFO L93 Difference]: Finished difference Result 426 states and 589 transitions. [2020-09-24 22:43:03,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:43:03,688 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-09-24 22:43:03,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:43:03,693 INFO L225 Difference]: With dead ends: 426 [2020-09-24 22:43:03,693 INFO L226 Difference]: Without dead ends: 297 [2020-09-24 22:43:03,694 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:03,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-09-24 22:43:03,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 295. [2020-09-24 22:43:03,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-09-24 22:43:03,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 400 transitions. [2020-09-24 22:43:03,731 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 400 transitions. Word has length 74 [2020-09-24 22:43:03,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:43:03,732 INFO L479 AbstractCegarLoop]: Abstraction has 295 states and 400 transitions. [2020-09-24 22:43:03,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:43:03,735 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 400 transitions. [2020-09-24 22:43:03,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-24 22:43:03,737 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:43:03,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:43:03,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:43:03,741 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:43:03,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:43:03,741 INFO L82 PathProgramCache]: Analyzing trace with hash -618815907, now seen corresponding path program 1 times [2020-09-24 22:43:03,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:43:03,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1246539397] [2020-09-24 22:43:03,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:43:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:03,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:03,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:03,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-24 22:43:03,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:03,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 22:43:03,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:03,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:43:03,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-09-24 22:43:03,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 22:43:03,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:03,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:43:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:03,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:03,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:03,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:43:03,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:03,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:43:03,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:03,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:43:03,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:43:03,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:43:03,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:03,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:43:03,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1246539397] [2020-09-24 22:43:03,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:43:03,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:43:03,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361122369] [2020-09-24 22:43:03,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:43:03,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:43:03,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:43:03,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:03,862 INFO L87 Difference]: Start difference. First operand 295 states and 400 transitions. Second operand 3 states. [2020-09-24 22:43:03,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:43:03,880 INFO L93 Difference]: Finished difference Result 361 states and 496 transitions. [2020-09-24 22:43:03,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:43:03,881 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-09-24 22:43:03,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:43:03,883 INFO L225 Difference]: With dead ends: 361 [2020-09-24 22:43:03,884 INFO L226 Difference]: Without dead ends: 359 [2020-09-24 22:43:03,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:03,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2020-09-24 22:43:03,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 295. [2020-09-24 22:43:03,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-09-24 22:43:03,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 398 transitions. [2020-09-24 22:43:03,899 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 398 transitions. Word has length 75 [2020-09-24 22:43:03,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:43:03,900 INFO L479 AbstractCegarLoop]: Abstraction has 295 states and 398 transitions. [2020-09-24 22:43:03,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:43:03,905 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 398 transitions. [2020-09-24 22:43:03,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-24 22:43:03,907 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:43:03,907 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:43:03,907 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:43:03,907 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:43:03,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:43:03,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1029980604, now seen corresponding path program 1 times [2020-09-24 22:43:03,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:43:03,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [893985535] [2020-09-24 22:43:03,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:43:03,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:03,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:03,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:04,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-24 22:43:04,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:04,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 22:43:04,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:04,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:43:04,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-09-24 22:43:04,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 22:43:04,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:04,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:43:04,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:04,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:04,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:04,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:43:04,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:04,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:43:04,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:04,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:43:04,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:43:04,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:43:04,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:43:04,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:43:04,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [893985535] [2020-09-24 22:43:04,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:43:04,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:43:04,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333925612] [2020-09-24 22:43:04,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:43:04,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:43:04,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:43:04,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:04,056 INFO L87 Difference]: Start difference. First operand 295 states and 398 transitions. Second operand 3 states. [2020-09-24 22:43:04,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:43:04,080 INFO L93 Difference]: Finished difference Result 783 states and 1088 transitions. [2020-09-24 22:43:04,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:43:04,081 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-09-24 22:43:04,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:43:04,084 INFO L225 Difference]: With dead ends: 783 [2020-09-24 22:43:04,084 INFO L226 Difference]: Without dead ends: 533 [2020-09-24 22:43:04,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:04,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2020-09-24 22:43:04,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 531. [2020-09-24 22:43:04,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 531 states. [2020-09-24 22:43:04,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 726 transitions. [2020-09-24 22:43:04,111 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 726 transitions. Word has length 75 [2020-09-24 22:43:04,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:43:04,111 INFO L479 AbstractCegarLoop]: Abstraction has 531 states and 726 transitions. [2020-09-24 22:43:04,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:43:04,111 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 726 transitions. [2020-09-24 22:43:04,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-09-24 22:43:04,116 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:43:04,117 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:43:04,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 22:43:04,117 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:43:04,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:43:04,118 INFO L82 PathProgramCache]: Analyzing trace with hash 72930056, now seen corresponding path program 1 times [2020-09-24 22:43:04,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:43:04,118 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1915758997] [2020-09-24 22:43:04,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:43:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:04,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:04,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:04,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 22:43:04,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:04,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 22:43:04,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:04,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:43:04,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-09-24 22:43:04,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 22:43:04,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:04,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:43:04,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:04,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:04,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:04,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:43:04,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:04,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:43:04,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:04,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:43:04,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:43:04,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:43:04,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:43:04,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:43:04,235 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1915758997] [2020-09-24 22:43:04,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:43:04,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:43:04,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786800845] [2020-09-24 22:43:04,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:43:04,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:43:04,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:43:04,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:04,238 INFO L87 Difference]: Start difference. First operand 531 states and 726 transitions. Second operand 3 states. [2020-09-24 22:43:04,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:43:04,258 INFO L93 Difference]: Finished difference Result 651 states and 900 transitions. [2020-09-24 22:43:04,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:43:04,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-09-24 22:43:04,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:43:04,263 INFO L225 Difference]: With dead ends: 651 [2020-09-24 22:43:04,263 INFO L226 Difference]: Without dead ends: 649 [2020-09-24 22:43:04,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:04,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2020-09-24 22:43:04,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 531. [2020-09-24 22:43:04,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 531 states. [2020-09-24 22:43:04,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 722 transitions. [2020-09-24 22:43:04,300 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 722 transitions. Word has length 76 [2020-09-24 22:43:04,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:43:04,300 INFO L479 AbstractCegarLoop]: Abstraction has 531 states and 722 transitions. [2020-09-24 22:43:04,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:43:04,300 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 722 transitions. [2020-09-24 22:43:04,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-09-24 22:43:04,302 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:43:04,302 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:43:04,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 22:43:04,303 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:43:04,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:43:04,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1864872322, now seen corresponding path program 1 times [2020-09-24 22:43:04,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:43:04,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2053219807] [2020-09-24 22:43:04,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:43:04,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:04,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:04,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:04,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 22:43:04,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:04,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 22:43:04,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:04,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:43:04,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-09-24 22:43:04,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 22:43:04,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:04,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:43:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:04,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:04,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:04,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:43:04,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:04,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:43:04,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:04,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:43:04,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:43:04,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:43:04,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:04,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:43:04,404 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2053219807] [2020-09-24 22:43:04,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:43:04,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:43:04,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499189893] [2020-09-24 22:43:04,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:43:04,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:43:04,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:43:04,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:04,406 INFO L87 Difference]: Start difference. First operand 531 states and 722 transitions. Second operand 3 states. [2020-09-24 22:43:04,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:43:04,430 INFO L93 Difference]: Finished difference Result 1479 states and 2044 transitions. [2020-09-24 22:43:04,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:43:04,431 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-09-24 22:43:04,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:43:04,436 INFO L225 Difference]: With dead ends: 1479 [2020-09-24 22:43:04,436 INFO L226 Difference]: Without dead ends: 993 [2020-09-24 22:43:04,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:04,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2020-09-24 22:43:04,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 991. [2020-09-24 22:43:04,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 991 states. [2020-09-24 22:43:04,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1350 transitions. [2020-09-24 22:43:04,459 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1350 transitions. Word has length 76 [2020-09-24 22:43:04,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:43:04,460 INFO L479 AbstractCegarLoop]: Abstraction has 991 states and 1350 transitions. [2020-09-24 22:43:04,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:43:04,460 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1350 transitions. [2020-09-24 22:43:04,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-09-24 22:43:04,461 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:43:04,462 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] [2020-09-24 22:43:04,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 22:43:04,462 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:43:04,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:43:04,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1976712176, now seen corresponding path program 1 times [2020-09-24 22:43:04,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:43:04,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2001605513] [2020-09-24 22:43:04,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:43:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:04,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:04,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:04,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 22:43:04,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:04,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 22:43:04,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:04,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:43:04,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-24 22:43:04,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 22:43:04,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:04,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:43:04,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:04,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:04,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:04,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:43:04,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:04,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:43:04,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:04,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:43:04,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:43:04,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:43:04,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:04,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:43:04,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2001605513] [2020-09-24 22:43:04,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:43:04,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:43:04,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609051529] [2020-09-24 22:43:04,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:43:04,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:43:04,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:43:04,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:04,558 INFO L87 Difference]: Start difference. First operand 991 states and 1350 transitions. Second operand 3 states. [2020-09-24 22:43:04,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:43:04,592 INFO L93 Difference]: Finished difference Result 2835 states and 3896 transitions. [2020-09-24 22:43:04,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:43:04,592 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2020-09-24 22:43:04,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:43:04,601 INFO L225 Difference]: With dead ends: 2835 [2020-09-24 22:43:04,601 INFO L226 Difference]: Without dead ends: 1889 [2020-09-24 22:43:04,603 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:04,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1889 states. [2020-09-24 22:43:04,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1889 to 1887. [2020-09-24 22:43:04,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1887 states. [2020-09-24 22:43:04,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1887 states to 1887 states and 2558 transitions. [2020-09-24 22:43:04,642 INFO L78 Accepts]: Start accepts. Automaton has 1887 states and 2558 transitions. Word has length 77 [2020-09-24 22:43:04,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:43:04,642 INFO L479 AbstractCegarLoop]: Abstraction has 1887 states and 2558 transitions. [2020-09-24 22:43:04,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:43:04,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1887 states and 2558 transitions. [2020-09-24 22:43:04,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-09-24 22:43:04,644 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:43:04,645 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:43:04,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 22:43:04,645 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:43:04,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:43:04,645 INFO L82 PathProgramCache]: Analyzing trace with hash 42218801, now seen corresponding path program 1 times [2020-09-24 22:43:04,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:43:04,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1648664641] [2020-09-24 22:43:04,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:43:04,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:04,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:04,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:04,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 22:43:04,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:04,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 22:43:04,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:04,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:43:04,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-24 22:43:04,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 22:43:04,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:04,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:43:04,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:04,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:04,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:04,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:43:04,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:04,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:43:04,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:04,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:43:04,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:43:04,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:43:04,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:04,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:43:04,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1648664641] [2020-09-24 22:43:04,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:43:04,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:43:04,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197866663] [2020-09-24 22:43:04,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:43:04,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:43:04,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:43:04,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:04,739 INFO L87 Difference]: Start difference. First operand 1887 states and 2558 transitions. Second operand 3 states. [2020-09-24 22:43:04,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:43:04,765 INFO L93 Difference]: Finished difference Result 2307 states and 3152 transitions. [2020-09-24 22:43:04,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:43:04,766 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2020-09-24 22:43:04,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:43:04,776 INFO L225 Difference]: With dead ends: 2307 [2020-09-24 22:43:04,776 INFO L226 Difference]: Without dead ends: 2305 [2020-09-24 22:43:04,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:04,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2305 states. [2020-09-24 22:43:04,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2305 to 1887. [2020-09-24 22:43:04,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1887 states. [2020-09-24 22:43:04,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1887 states to 1887 states and 2542 transitions. [2020-09-24 22:43:04,837 INFO L78 Accepts]: Start accepts. Automaton has 1887 states and 2542 transitions. Word has length 77 [2020-09-24 22:43:04,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:43:04,838 INFO L479 AbstractCegarLoop]: Abstraction has 1887 states and 2542 transitions. [2020-09-24 22:43:04,838 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:43:04,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1887 states and 2542 transitions. [2020-09-24 22:43:04,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-24 22:43:04,840 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:43:04,840 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:43:04,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 22:43:04,840 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:43:04,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:43:04,841 INFO L82 PathProgramCache]: Analyzing trace with hash -909829732, now seen corresponding path program 1 times [2020-09-24 22:43:04,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:43:04,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1548288560] [2020-09-24 22:43:04,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:43:04,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:04,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:04,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:04,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:43:04,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:04,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 22:43:04,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:04,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:43:04,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-09-24 22:43:04,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 22:43:04,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:04,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:43:04,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:04,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:04,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:04,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:43:04,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:04,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:43:04,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:04,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:43:04,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:43:04,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:43:04,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:43:04,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:43:04,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1548288560] [2020-09-24 22:43:04,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:43:04,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:43:04,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430615864] [2020-09-24 22:43:04,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:43:04,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:43:04,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:43:04,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:04,948 INFO L87 Difference]: Start difference. First operand 1887 states and 2542 transitions. Second operand 3 states. [2020-09-24 22:43:05,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:43:05,003 INFO L93 Difference]: Finished difference Result 2291 states and 3104 transitions. [2020-09-24 22:43:05,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:43:05,004 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-09-24 22:43:05,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:43:05,017 INFO L225 Difference]: With dead ends: 2291 [2020-09-24 22:43:05,018 INFO L226 Difference]: Without dead ends: 2289 [2020-09-24 22:43:05,019 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:05,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2289 states. [2020-09-24 22:43:05,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2289 to 1887. [2020-09-24 22:43:05,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1887 states. [2020-09-24 22:43:05,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1887 states to 1887 states and 2526 transitions. [2020-09-24 22:43:05,102 INFO L78 Accepts]: Start accepts. Automaton has 1887 states and 2526 transitions. Word has length 78 [2020-09-24 22:43:05,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:43:05,103 INFO L479 AbstractCegarLoop]: Abstraction has 1887 states and 2526 transitions. [2020-09-24 22:43:05,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:43:05,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1887 states and 2526 transitions. [2020-09-24 22:43:05,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-24 22:43:05,106 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:43:05,106 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:43:05,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 22:43:05,107 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:43:05,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:43:05,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1148780726, now seen corresponding path program 1 times [2020-09-24 22:43:05,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:43:05,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2110333919] [2020-09-24 22:43:05,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:43:05,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:05,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:05,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:05,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:43:05,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:05,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-24 22:43:05,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:05,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:43:05,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-09-24 22:43:05,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 22:43:05,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:05,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:43:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:05,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:05,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:05,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:43:05,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:05,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:43:05,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:05,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:43:05,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:43:05,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:43:05,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:43:05,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:43:05,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2110333919] [2020-09-24 22:43:05,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:43:05,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:43:05,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209746293] [2020-09-24 22:43:05,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:43:05,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:43:05,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:43:05,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:05,242 INFO L87 Difference]: Start difference. First operand 1887 states and 2526 transitions. Second operand 3 states. [2020-09-24 22:43:05,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:43:05,307 INFO L93 Difference]: Finished difference Result 5475 states and 7360 transitions. [2020-09-24 22:43:05,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:43:05,308 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-09-24 22:43:05,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:43:05,329 INFO L225 Difference]: With dead ends: 5475 [2020-09-24 22:43:05,329 INFO L226 Difference]: Without dead ends: 3633 [2020-09-24 22:43:05,334 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:05,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3633 states. [2020-09-24 22:43:05,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3633 to 3631. [2020-09-24 22:43:05,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3631 states. [2020-09-24 22:43:05,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3631 states to 3631 states and 4814 transitions. [2020-09-24 22:43:05,460 INFO L78 Accepts]: Start accepts. Automaton has 3631 states and 4814 transitions. Word has length 78 [2020-09-24 22:43:05,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:43:05,461 INFO L479 AbstractCegarLoop]: Abstraction has 3631 states and 4814 transitions. [2020-09-24 22:43:05,461 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:43:05,461 INFO L276 IsEmpty]: Start isEmpty. Operand 3631 states and 4814 transitions. [2020-09-24 22:43:05,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-24 22:43:05,465 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:43:05,466 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:43:05,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 22:43:05,466 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:43:05,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:43:05,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1252709924, now seen corresponding path program 1 times [2020-09-24 22:43:05,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:43:05,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [36497179] [2020-09-24 22:43:05,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:43:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:05,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:05,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:05,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:43:05,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:05,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 22:43:05,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:05,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:43:05,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-24 22:43:05,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 22:43:05,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:05,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:43:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:05,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:05,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:05,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:43:05,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:05,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:43:05,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:05,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:43:05,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:43:05,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:43:05,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:05,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:43:05,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [36497179] [2020-09-24 22:43:05,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:43:05,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:43:05,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997768091] [2020-09-24 22:43:05,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:43:05,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:43:05,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:43:05,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:05,602 INFO L87 Difference]: Start difference. First operand 3631 states and 4814 transitions. Second operand 3 states. [2020-09-24 22:43:05,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:43:05,680 INFO L93 Difference]: Finished difference Result 10611 states and 14096 transitions. [2020-09-24 22:43:05,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:43:05,681 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2020-09-24 22:43:05,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:43:05,711 INFO L225 Difference]: With dead ends: 10611 [2020-09-24 22:43:05,711 INFO L226 Difference]: Without dead ends: 7025 [2020-09-24 22:43:05,720 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:05,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7025 states. [2020-09-24 22:43:05,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7025 to 7023. [2020-09-24 22:43:05,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7023 states. [2020-09-24 22:43:05,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7023 states to 7023 states and 9198 transitions. [2020-09-24 22:43:05,902 INFO L78 Accepts]: Start accepts. Automaton has 7023 states and 9198 transitions. Word has length 79 [2020-09-24 22:43:05,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:43:05,902 INFO L479 AbstractCegarLoop]: Abstraction has 7023 states and 9198 transitions. [2020-09-24 22:43:05,902 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:43:05,902 INFO L276 IsEmpty]: Start isEmpty. Operand 7023 states and 9198 transitions. [2020-09-24 22:43:05,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-24 22:43:05,907 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:43:05,907 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:43:05,907 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 22:43:05,908 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:43:05,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:43:05,908 INFO L82 PathProgramCache]: Analyzing trace with hash -358562811, now seen corresponding path program 1 times [2020-09-24 22:43:05,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:43:05,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1820484405] [2020-09-24 22:43:05,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:43:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:05,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:05,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:05,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:43:05,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:05,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 22:43:05,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:05,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:43:05,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-24 22:43:05,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 22:43:05,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:05,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:43:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:05,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:05,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:05,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:43:05,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:05,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:43:06,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:06,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:43:06,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:43:06,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:43:06,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:06,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:43:06,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1820484405] [2020-09-24 22:43:06,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:43:06,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:43:06,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135841799] [2020-09-24 22:43:06,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:43:06,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:43:06,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:43:06,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:06,008 INFO L87 Difference]: Start difference. First operand 7023 states and 9198 transitions. Second operand 3 states. [2020-09-24 22:43:06,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:43:06,071 INFO L93 Difference]: Finished difference Result 8435 states and 11056 transitions. [2020-09-24 22:43:06,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:43:06,072 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2020-09-24 22:43:06,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:43:06,109 INFO L225 Difference]: With dead ends: 8435 [2020-09-24 22:43:06,109 INFO L226 Difference]: Without dead ends: 8433 [2020-09-24 22:43:06,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:06,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8433 states. [2020-09-24 22:43:06,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8433 to 7023. [2020-09-24 22:43:06,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7023 states. [2020-09-24 22:43:06,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7023 states to 7023 states and 9134 transitions. [2020-09-24 22:43:06,309 INFO L78 Accepts]: Start accepts. Automaton has 7023 states and 9134 transitions. Word has length 79 [2020-09-24 22:43:06,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:43:06,310 INFO L479 AbstractCegarLoop]: Abstraction has 7023 states and 9134 transitions. [2020-09-24 22:43:06,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:43:06,310 INFO L276 IsEmpty]: Start isEmpty. Operand 7023 states and 9134 transitions. [2020-09-24 22:43:06,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-24 22:43:06,315 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:43:06,315 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:43:06,316 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 22:43:06,316 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:43:06,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:43:06,316 INFO L82 PathProgramCache]: Analyzing trace with hash -449157072, now seen corresponding path program 1 times [2020-09-24 22:43:06,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:43:06,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [513414260] [2020-09-24 22:43:06,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:43:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:06,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:06,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:06,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-24 22:43:06,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:06,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 22:43:06,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:06,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:43:06,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-09-24 22:43:06,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 22:43:06,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:06,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:43:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:06,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:06,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:06,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:43:06,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:06,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:43:06,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:06,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:43:06,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:43:06,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:43:06,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:06,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:43:06,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [513414260] [2020-09-24 22:43:06,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:43:06,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:43:06,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022692739] [2020-09-24 22:43:06,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:43:06,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:43:06,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:43:06,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:06,416 INFO L87 Difference]: Start difference. First operand 7023 states and 9134 transitions. Second operand 3 states. [2020-09-24 22:43:06,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:43:06,478 INFO L93 Difference]: Finished difference Result 8371 states and 10864 transitions. [2020-09-24 22:43:06,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:43:06,478 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2020-09-24 22:43:06,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:43:06,495 INFO L225 Difference]: With dead ends: 8371 [2020-09-24 22:43:06,496 INFO L226 Difference]: Without dead ends: 8369 [2020-09-24 22:43:06,499 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:06,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8369 states. [2020-09-24 22:43:06,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8369 to 7023. [2020-09-24 22:43:06,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7023 states. [2020-09-24 22:43:06,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7023 states to 7023 states and 9070 transitions. [2020-09-24 22:43:06,630 INFO L78 Accepts]: Start accepts. Automaton has 7023 states and 9070 transitions. Word has length 80 [2020-09-24 22:43:06,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:43:06,630 INFO L479 AbstractCegarLoop]: Abstraction has 7023 states and 9070 transitions. [2020-09-24 22:43:06,630 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:43:06,630 INFO L276 IsEmpty]: Start isEmpty. Operand 7023 states and 9070 transitions. [2020-09-24 22:43:06,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-24 22:43:06,635 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:43:06,636 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:43:06,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 22:43:06,636 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:43:06,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:43:06,636 INFO L82 PathProgramCache]: Analyzing trace with hash 179548138, now seen corresponding path program 1 times [2020-09-24 22:43:06,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:43:06,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1441421296] [2020-09-24 22:43:06,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:43:06,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:06,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:06,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:06,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-24 22:43:06,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:06,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 22:43:06,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:06,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:43:06,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-09-24 22:43:06,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 22:43:06,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:06,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:43:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:06,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:06,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:06,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:43:06,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:06,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:43:06,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:06,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:43:06,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:43:06,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:43:06,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:06,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:43:06,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1441421296] [2020-09-24 22:43:06,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:43:06,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:43:06,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104304488] [2020-09-24 22:43:06,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:43:06,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:43:06,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:43:06,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:06,729 INFO L87 Difference]: Start difference. First operand 7023 states and 9070 transitions. Second operand 3 states. [2020-09-24 22:43:06,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:43:06,895 INFO L93 Difference]: Finished difference Result 20595 states and 26608 transitions. [2020-09-24 22:43:06,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:43:06,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2020-09-24 22:43:06,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:43:06,921 INFO L225 Difference]: With dead ends: 20595 [2020-09-24 22:43:06,921 INFO L226 Difference]: Without dead ends: 13617 [2020-09-24 22:43:06,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:06,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13617 states. [2020-09-24 22:43:07,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13617 to 13615. [2020-09-24 22:43:07,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13615 states. [2020-09-24 22:43:07,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13615 states to 13615 states and 17326 transitions. [2020-09-24 22:43:07,156 INFO L78 Accepts]: Start accepts. Automaton has 13615 states and 17326 transitions. Word has length 80 [2020-09-24 22:43:07,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:43:07,157 INFO L479 AbstractCegarLoop]: Abstraction has 13615 states and 17326 transitions. [2020-09-24 22:43:07,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:43:07,157 INFO L276 IsEmpty]: Start isEmpty. Operand 13615 states and 17326 transitions. [2020-09-24 22:43:07,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-24 22:43:07,166 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:43:07,166 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] [2020-09-24 22:43:07,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 22:43:07,166 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:43:07,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:43:07,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1037388505, now seen corresponding path program 1 times [2020-09-24 22:43:07,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:43:07,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [644173999] [2020-09-24 22:43:07,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:43:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:07,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:07,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:07,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-24 22:43:07,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:07,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 22:43:07,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:07,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:43:07,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-24 22:43:07,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 22:43:07,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:07,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:43:07,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:07,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:07,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:07,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:43:07,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:07,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:43:07,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:07,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:43:07,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:43:07,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:43:07,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:07,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:43:07,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [644173999] [2020-09-24 22:43:07,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:43:07,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:43:07,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415560020] [2020-09-24 22:43:07,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:43:07,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:43:07,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:43:07,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:07,261 INFO L87 Difference]: Start difference. First operand 13615 states and 17326 transitions. Second operand 3 states. [2020-09-24 22:43:07,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:43:07,519 INFO L93 Difference]: Finished difference Result 16051 states and 20272 transitions. [2020-09-24 22:43:07,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:43:07,520 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 81 [2020-09-24 22:43:07,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:43:07,555 INFO L225 Difference]: With dead ends: 16051 [2020-09-24 22:43:07,555 INFO L226 Difference]: Without dead ends: 16049 [2020-09-24 22:43:07,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:07,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16049 states. [2020-09-24 22:43:07,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16049 to 13615. [2020-09-24 22:43:07,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13615 states. [2020-09-24 22:43:07,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13615 states to 13615 states and 17198 transitions. [2020-09-24 22:43:07,821 INFO L78 Accepts]: Start accepts. Automaton has 13615 states and 17198 transitions. Word has length 81 [2020-09-24 22:43:07,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:43:07,822 INFO L479 AbstractCegarLoop]: Abstraction has 13615 states and 17198 transitions. [2020-09-24 22:43:07,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:43:07,822 INFO L276 IsEmpty]: Start isEmpty. Operand 13615 states and 17198 transitions. [2020-09-24 22:43:07,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-24 22:43:07,830 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:43:07,831 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] [2020-09-24 22:43:07,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-24 22:43:07,831 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:43:07,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:43:07,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1271271512, now seen corresponding path program 1 times [2020-09-24 22:43:07,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:43:07,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [315405778] [2020-09-24 22:43:07,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:43:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:07,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:07,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:07,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-24 22:43:07,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:07,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 22:43:07,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:07,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:43:07,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-24 22:43:07,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 22:43:07,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:07,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:43:07,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:07,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:07,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:07,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:43:07,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:07,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:43:07,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:07,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:43:07,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:43:07,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:43:07,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:07,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:43:07,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [315405778] [2020-09-24 22:43:07,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:43:07,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:43:07,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453351158] [2020-09-24 22:43:07,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:43:07,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:43:07,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:43:07,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:07,924 INFO L87 Difference]: Start difference. First operand 13615 states and 17198 transitions. Second operand 3 states. [2020-09-24 22:43:08,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:43:08,576 INFO L93 Difference]: Finished difference Result 39987 states and 50480 transitions. [2020-09-24 22:43:08,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:43:08,576 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 81 [2020-09-24 22:43:08,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:43:08,620 INFO L225 Difference]: With dead ends: 39987 [2020-09-24 22:43:08,620 INFO L226 Difference]: Without dead ends: 26417 [2020-09-24 22:43:08,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:08,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26417 states. [2020-09-24 22:43:09,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26417 to 26415. [2020-09-24 22:43:09,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26415 states. [2020-09-24 22:43:09,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26415 states to 26415 states and 32814 transitions. [2020-09-24 22:43:09,054 INFO L78 Accepts]: Start accepts. Automaton has 26415 states and 32814 transitions. Word has length 81 [2020-09-24 22:43:09,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:43:09,055 INFO L479 AbstractCegarLoop]: Abstraction has 26415 states and 32814 transitions. [2020-09-24 22:43:09,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:43:09,055 INFO L276 IsEmpty]: Start isEmpty. Operand 26415 states and 32814 transitions. [2020-09-24 22:43:09,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-24 22:43:09,070 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:43:09,070 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:43:09,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-24 22:43:09,070 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:43:09,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:43:09,071 INFO L82 PathProgramCache]: Analyzing trace with hash -124338492, now seen corresponding path program 1 times [2020-09-24 22:43:09,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:43:09,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1479496591] [2020-09-24 22:43:09,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:43:09,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:09,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:09,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:09,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 22:43:09,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:09,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 22:43:09,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:09,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:43:09,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-24 22:43:09,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 22:43:09,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:09,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:43:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:09,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:09,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:09,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:43:09,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:09,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:43:09,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:09,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:43:09,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:43:09,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:43:09,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:09,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:43:09,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1479496591] [2020-09-24 22:43:09,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:43:09,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:43:09,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401657665] [2020-09-24 22:43:09,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:43:09,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:43:09,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:43:09,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:09,168 INFO L87 Difference]: Start difference. First operand 26415 states and 32814 transitions. Second operand 3 states. [2020-09-24 22:43:09,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:43:09,472 INFO L93 Difference]: Finished difference Result 30771 states and 37680 transitions. [2020-09-24 22:43:09,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:43:09,472 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2020-09-24 22:43:09,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:43:09,528 INFO L225 Difference]: With dead ends: 30771 [2020-09-24 22:43:09,528 INFO L226 Difference]: Without dead ends: 30769 [2020-09-24 22:43:09,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:09,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30769 states. [2020-09-24 22:43:09,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30769 to 26415. [2020-09-24 22:43:09,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26415 states. [2020-09-24 22:43:09,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26415 states to 26415 states and 32558 transitions. [2020-09-24 22:43:09,958 INFO L78 Accepts]: Start accepts. Automaton has 26415 states and 32558 transitions. Word has length 82 [2020-09-24 22:43:09,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:43:09,958 INFO L479 AbstractCegarLoop]: Abstraction has 26415 states and 32558 transitions. [2020-09-24 22:43:09,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:43:09,959 INFO L276 IsEmpty]: Start isEmpty. Operand 26415 states and 32558 transitions. [2020-09-24 22:43:09,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-24 22:43:09,974 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:43:09,974 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:43:09,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-24 22:43:09,974 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:43:09,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:43:09,975 INFO L82 PathProgramCache]: Analyzing trace with hash 754958110, now seen corresponding path program 1 times [2020-09-24 22:43:09,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:43:09,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1764239696] [2020-09-24 22:43:09,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:43:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:10,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:10,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:10,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 22:43:10,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:10,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-09-24 22:43:10,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:10,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:43:10,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-24 22:43:10,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 22:43:10,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:10,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:43:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:10,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:10,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:10,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:43:10,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:10,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:43:10,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:10,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:43:10,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:43:10,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:43:10,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:10,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:43:10,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1764239696] [2020-09-24 22:43:10,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:43:10,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:43:10,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66989849] [2020-09-24 22:43:10,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:43:10,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:43:10,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:43:10,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:10,206 INFO L87 Difference]: Start difference. First operand 26415 states and 32558 transitions. Second operand 3 states. [2020-09-24 22:43:10,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:43:10,595 INFO L93 Difference]: Finished difference Result 77617 states and 95535 transitions. [2020-09-24 22:43:10,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:43:10,596 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2020-09-24 22:43:10,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:43:10,687 INFO L225 Difference]: With dead ends: 77617 [2020-09-24 22:43:10,687 INFO L226 Difference]: Without dead ends: 26415 [2020-09-24 22:43:10,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:10,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26415 states. [2020-09-24 22:43:11,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26415 to 26415. [2020-09-24 22:43:11,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26415 states. [2020-09-24 22:43:11,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26415 states to 26415 states and 31534 transitions. [2020-09-24 22:43:11,205 INFO L78 Accepts]: Start accepts. Automaton has 26415 states and 31534 transitions. Word has length 82 [2020-09-24 22:43:11,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:43:11,206 INFO L479 AbstractCegarLoop]: Abstraction has 26415 states and 31534 transitions. [2020-09-24 22:43:11,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:43:11,206 INFO L276 IsEmpty]: Start isEmpty. Operand 26415 states and 31534 transitions. [2020-09-24 22:43:11,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-24 22:43:11,223 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:43:11,224 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:43:11,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-24 22:43:11,224 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:43:11,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:43:11,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1778136659, now seen corresponding path program 1 times [2020-09-24 22:43:11,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:43:11,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [467170542] [2020-09-24 22:43:11,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:43:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:11,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:11,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:11,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-24 22:43:11,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:11,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-09-24 22:43:11,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:11,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:43:11,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 22:43:11,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 22:43:11,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:11,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:43:11,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:43:11,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:43:11,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:43:11,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:43:11,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:43:11,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:43:11,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:43:11,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:43:11,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:43:11,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:43:11,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:43:11,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:43:11,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [467170542] [2020-09-24 22:43:11,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:43:11,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:43:11,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762722280] [2020-09-24 22:43:11,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:43:11,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:43:11,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:43:11,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:11,506 INFO L87 Difference]: Start difference. First operand 26415 states and 31534 transitions. Second operand 3 states. [2020-09-24 22:43:11,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:43:11,657 INFO L93 Difference]: Finished difference Result 26415 states and 31534 transitions. [2020-09-24 22:43:11,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:43:11,657 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2020-09-24 22:43:11,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:43:11,658 INFO L225 Difference]: With dead ends: 26415 [2020-09-24 22:43:11,658 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 22:43:11,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:43:11,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 22:43:11,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 22:43:11,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 22:43:11,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 22:43:11,682 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 83 [2020-09-24 22:43:11,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:43:11,683 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 22:43:11,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:43:11,683 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 22:43:11,683 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 22:43:11,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-24 22:43:11,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 22:43:11,733 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-24 22:43:11,734 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 22:43:11,734 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 22:43:11,734 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 22:43:11,734 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 22:43:11,734 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 22:43:11,734 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 4 163) no Hoare annotation was computed. [2020-09-24 22:43:11,734 INFO L268 CegarLoopResult]: For program point L118-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 22:43:11,735 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-24 22:43:11,735 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-24 22:43:11,735 INFO L268 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-09-24 22:43:11,735 INFO L268 CegarLoopResult]: For program point L102-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 22:43:11,735 INFO L268 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-09-24 22:43:11,735 INFO L268 CegarLoopResult]: For program point L86-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 22:43:11,735 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-09-24 22:43:11,736 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-24 22:43:11,736 INFO L268 CegarLoopResult]: For program point L70-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 22:43:11,736 INFO L268 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-09-24 22:43:11,736 INFO L271 CegarLoopResult]: At program point L153-1(lines 39 158) the Hoare annotation is: true [2020-09-24 22:43:11,736 INFO L268 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-09-24 22:43:11,736 INFO L268 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-09-24 22:43:11,736 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-24 22:43:11,736 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-24 22:43:11,737 INFO L268 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-09-24 22:43:11,737 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 4 163) no Hoare annotation was computed. [2020-09-24 22:43:11,737 INFO L268 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-09-24 22:43:11,737 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-09-24 22:43:11,737 INFO L264 CegarLoopResult]: At program point L154-1(lines 5 163) the Hoare annotation is: false [2020-09-24 22:43:11,737 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-24 22:43:11,737 INFO L268 CegarLoopResult]: For program point L138-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 22:43:11,737 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-24 22:43:11,738 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-24 22:43:11,738 INFO L268 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-09-24 22:43:11,738 INFO L268 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-09-24 22:43:11,738 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-09-24 22:43:11,738 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-24 22:43:11,738 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-24 22:43:11,738 INFO L268 CegarLoopResult]: For program point L40-1(line 40) no Hoare annotation was computed. [2020-09-24 22:43:11,738 INFO L268 CegarLoopResult]: For program point L40-2(line 40) no Hoare annotation was computed. [2020-09-24 22:43:11,739 INFO L268 CegarLoopResult]: For program point L123-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 22:43:11,739 INFO L268 CegarLoopResult]: For program point L90-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 22:43:11,739 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-24 22:43:11,739 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-24 22:43:11,739 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-24 22:43:11,739 INFO L268 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-09-24 22:43:11,739 INFO L268 CegarLoopResult]: For program point L41(lines 41 43) no Hoare annotation was computed. [2020-09-24 22:43:11,739 INFO L268 CegarLoopResult]: For program point L74-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 22:43:11,740 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-09-24 22:43:11,740 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-09-24 22:43:11,740 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-09-24 22:43:11,740 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-24 22:43:11,740 INFO L268 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-09-24 22:43:11,740 INFO L268 CegarLoopResult]: For program point L108-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 22:43:11,740 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-24 22:43:11,740 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-09-24 22:43:11,741 INFO L268 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-09-24 22:43:11,741 INFO L268 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-09-24 22:43:11,741 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-09-24 22:43:11,741 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-24 22:43:11,741 INFO L271 CegarLoopResult]: At program point L159(lines 5 163) the Hoare annotation is: true [2020-09-24 22:43:11,741 INFO L268 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-09-24 22:43:11,741 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-24 22:43:11,742 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-09-24 22:43:11,742 INFO L268 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-09-24 22:43:11,742 INFO L268 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-09-24 22:43:11,742 INFO L268 CegarLoopResult]: For program point L143-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 22:43:11,742 INFO L268 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-09-24 22:43:11,742 INFO L268 CegarLoopResult]: For program point L94-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 22:43:11,742 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-24 22:43:11,742 INFO L268 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-09-24 22:43:11,743 INFO L268 CegarLoopResult]: For program point L78-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 22:43:11,743 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-24 22:43:11,743 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-24 22:43:11,743 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-24 22:43:11,743 INFO L268 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-09-24 22:43:11,743 INFO L268 CegarLoopResult]: For program point L128-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 22:43:11,743 INFO L268 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-09-24 22:43:11,743 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-09-24 22:43:11,744 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-09-24 22:43:11,744 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-24 22:43:11,744 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-24 22:43:11,744 INFO L268 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-09-24 22:43:11,744 INFO L268 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-09-24 22:43:11,744 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 161) no Hoare annotation was computed. [2020-09-24 22:43:11,744 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-24 22:43:11,745 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 4 163) the Hoare annotation is: true [2020-09-24 22:43:11,745 INFO L268 CegarLoopResult]: For program point L30-1(line 30) no Hoare annotation was computed. [2020-09-24 22:43:11,745 INFO L268 CegarLoopResult]: For program point L30-2(line 30) no Hoare annotation was computed. [2020-09-24 22:43:11,745 INFO L268 CegarLoopResult]: For program point L113-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 22:43:11,745 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-09-24 22:43:11,745 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-24 22:43:11,745 INFO L268 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-09-24 22:43:11,745 INFO L268 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-09-24 22:43:11,745 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 22:43:11,746 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-24 22:43:11,746 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-24 22:43:11,746 INFO L268 CegarLoopResult]: For program point L98-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 22:43:11,746 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-09-24 22:43:11,746 INFO L268 CegarLoopResult]: For program point L148-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 22:43:11,746 INFO L268 CegarLoopResult]: For program point L82-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 22:43:11,746 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 22:43:11,746 INFO L268 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-09-24 22:43:11,747 INFO L268 CegarLoopResult]: For program point L66(lines 66 68) no Hoare annotation was computed. [2020-09-24 22:43:11,747 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-09-24 22:43:11,747 INFO L268 CegarLoopResult]: For program point L33-1(line 33) no Hoare annotation was computed. [2020-09-24 22:43:11,747 INFO L268 CegarLoopResult]: For program point L66-2(lines 39 158) no Hoare annotation was computed. [2020-09-24 22:43:11,747 INFO L268 CegarLoopResult]: For program point L33-2(line 33) no Hoare annotation was computed. [2020-09-24 22:43:11,747 INFO L268 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-09-24 22:43:11,747 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-09-24 22:43:11,747 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-09-24 22:43:11,748 INFO L268 CegarLoopResult]: For program point L133-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 22:43:11,748 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-09-24 22:43:11,748 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-24 22:43:11,748 INFO L268 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-09-24 22:43:11,748 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-24 22:43:11,748 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-24 22:43:11,748 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-24 22:43:11,748 INFO L268 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-09-24 22:43:11,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 10:43:11 BoogieIcfgContainer [2020-09-24 22:43:11,763 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 22:43:11,767 INFO L168 Benchmark]: Toolchain (without parser) took 10496.01 ms. Allocated memory was 139.5 MB in the beginning and 656.4 MB in the end (delta: 516.9 MB). Free memory was 102.4 MB in the beginning and 385.4 MB in the end (delta: -283.0 MB). Peak memory consumption was 233.9 MB. Max. memory is 7.1 GB. [2020-09-24 22:43:11,767 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 22:43:11,768 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.04 ms. Allocated memory is still 139.5 MB. Free memory was 101.8 MB in the beginning and 91.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-09-24 22:43:11,769 INFO L168 Benchmark]: Boogie Preprocessor took 123.07 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 91.1 MB in the beginning and 179.8 MB in the end (delta: -88.7 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-09-24 22:43:11,769 INFO L168 Benchmark]: RCFGBuilder took 496.88 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 154.7 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2020-09-24 22:43:11,770 INFO L168 Benchmark]: TraceAbstraction took 9481.13 ms. Allocated memory was 202.4 MB in the beginning and 656.4 MB in the end (delta: 454.0 MB). Free memory was 154.7 MB in the beginning and 385.4 MB in the end (delta: -230.7 MB). Peak memory consumption was 223.3 MB. Max. memory is 7.1 GB. [2020-09-24 22:43:11,773 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 385.04 ms. Allocated memory is still 139.5 MB. Free memory was 101.8 MB in the beginning and 91.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.07 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 91.1 MB in the beginning and 179.8 MB in the end (delta: -88.7 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 496.88 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 154.7 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9481.13 ms. Allocated memory was 202.4 MB in the beginning and 656.4 MB in the end (delta: 454.0 MB). Free memory was 154.7 MB in the beginning and 385.4 MB in the end (delta: -230.7 MB). Peak memory consumption was 223.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 161]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 118 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.3s, OverallIterations: 20, TraceHistogramMax: 1, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3610 SDtfs, 1318 SDslu, 2579 SDs, 0 SdLazy, 99 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26415occurred in iteration=17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.7s AutomataMinimizationTime, 20 MinimizatonAttempts, 10599 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 1033 NumberOfFragments, 7 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1560 NumberOfCodeBlocks, 1560 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1540 ConstructedInterpolants, 0 QuantifiedInterpolants, 151100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 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 correct! Received shutdown request...