/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 --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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/psyco/psyco_accelerometer_1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:32:38,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:32:38,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:32:38,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:32:38,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:32:38,876 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:32:38,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:32:38,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:32:38,882 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:32:38,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:32:38,885 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:32:38,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:32:38,886 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:32:38,888 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:32:38,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:32:38,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:32:38,897 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:32:38,902 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:32:38,904 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:32:38,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:32:38,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:32:38,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:32:38,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:32:38,920 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:32:38,925 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:32:38,925 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:32:38,926 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:32:38,930 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:32:38,930 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:32:38,934 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:32:38,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:32:38,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:32:38,936 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:32:38,937 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:32:38,938 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:32:38,939 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:32:38,940 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:32:38,940 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:32:38,940 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:32:38,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:32:38,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:32:38,944 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 [2020-09-21 12:32:39,005 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:32:39,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:32:39,009 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:32:39,009 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:32:39,010 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:32:39,010 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:32:39,010 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:32:39,010 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:32:39,010 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:32:39,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:32:39,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:32:39,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:32:39,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:32:39,012 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:32:39,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:32:39,014 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:32:39,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:32:39,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:32:39,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:32:39,015 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:32:39,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:32:39,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:32:39,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:32:39,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:32:39,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:32:39,016 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:32:39,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:32:39,017 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:32:39,017 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:32:39,017 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.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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:32:39,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:32:39,560 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:32:39,566 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:32:39,571 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:32:39,571 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:32:39,573 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_accelerometer_1.c [2020-09-21 12:32:39,669 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/79977aa3a/4ac40b1af39f4c06bc0b4f5ab66b4fca/FLAG1f59f9741 [2020-09-21 12:32:40,534 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:32:40,535 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/psyco/psyco_accelerometer_1.c [2020-09-21 12:32:40,584 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/79977aa3a/4ac40b1af39f4c06bc0b4f5ab66b4fca/FLAG1f59f9741 [2020-09-21 12:32:41,042 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/79977aa3a/4ac40b1af39f4c06bc0b4f5ab66b4fca [2020-09-21 12:32:41,057 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:32:41,063 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:32:41,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:32:41,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:32:41,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:32:41,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:32:41" (1/1) ... [2020-09-21 12:32:41,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d1c55bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:32:41, skipping insertion in model container [2020-09-21 12:32:41,075 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:32:41" (1/1) ... [2020-09-21 12:32:41,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:32:41,201 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:32:42,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:32:42,443 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:32:42,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:32:42,747 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:32:42,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:32:42 WrapperNode [2020-09-21 12:32:42,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:32:42,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:32:42,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:32:42,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:32:42,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:32:42" (1/1) ... [2020-09-21 12:32:42,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:32:42" (1/1) ... [2020-09-21 12:32:42,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:32:42" (1/1) ... [2020-09-21 12:32:42,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:32:42" (1/1) ... [2020-09-21 12:32:42,921 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:32:42" (1/1) ... [2020-09-21 12:32:42,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:32:42" (1/1) ... [2020-09-21 12:32:42,960 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:32:42" (1/1) ... [2020-09-21 12:32:42,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:32:42,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:32:42,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:32:42,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:32:42,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:32:42" (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 [2020-09-21 12:32:43,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:32:43,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:32:43,077 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:32:43,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:32:43,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:32:43,077 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:32:43,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:32:43,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:32:44,806 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:32:44,806 INFO L295 CfgBuilder]: Removed 21 assume(true) statements. [2020-09-21 12:32:44,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:32:44 BoogieIcfgContainer [2020-09-21 12:32:44,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:32:44,815 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:32:44,815 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:32:44,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:32:44,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:32:41" (1/3) ... [2020-09-21 12:32:44,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3019a149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:32:44, skipping insertion in model container [2020-09-21 12:32:44,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:32:42" (2/3) ... [2020-09-21 12:32:44,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3019a149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:32:44, skipping insertion in model container [2020-09-21 12:32:44,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:32:44" (3/3) ... [2020-09-21 12:32:44,824 INFO L109 eAbstractionObserver]: Analyzing ICFG psyco_accelerometer_1.c [2020-09-21 12:32:44,836 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:32:44,848 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:32:44,871 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:32:44,904 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:32:44,905 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:32:44,905 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:32:44,905 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:32:44,905 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:32:44,905 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:32:44,905 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:32:44,906 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:32:44,935 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states. [2020-09-21 12:32:44,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-21 12:32:44,944 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:32:44,945 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:32:44,946 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:32:44,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:32:44,954 INFO L82 PathProgramCache]: Analyzing trace with hash -358841446, now seen corresponding path program 1 times [2020-09-21 12:32:44,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:32:44,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [254049585] [2020-09-21 12:32:44,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:32:45,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:45,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:45,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:45,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-21 12:32:45,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:45,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-21 12:32:45,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:45,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:45,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 12:32:45,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:45,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-21 12:32:45,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:32:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:45,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:45,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:45,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:32:45,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:45,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 12:32:45,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:45,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:45,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:45,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:45,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 12:32:45,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:32:45,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [254049585] [2020-09-21 12:32:45,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:32:45,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:32:45,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960344385] [2020-09-21 12:32:45,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 12:32:45,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:32:45,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 12:32:45,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:32:45,482 INFO L87 Difference]: Start difference. First operand 242 states. Second operand 3 states. [2020-09-21 12:32:45,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:32:45,580 INFO L93 Difference]: Finished difference Result 469 states and 916 transitions. [2020-09-21 12:32:45,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 12:32:45,582 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-09-21 12:32:45,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:32:45,600 INFO L225 Difference]: With dead ends: 469 [2020-09-21 12:32:45,600 INFO L226 Difference]: Without dead ends: 228 [2020-09-21 12:32:45,606 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:32:45,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-09-21 12:32:45,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2020-09-21 12:32:45,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-09-21 12:32:45,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 397 transitions. [2020-09-21 12:32:45,679 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 397 transitions. Word has length 13 [2020-09-21 12:32:45,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:32:45,680 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 397 transitions. [2020-09-21 12:32:45,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 12:32:45,680 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 397 transitions. [2020-09-21 12:32:45,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-21 12:32:45,682 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:32:45,682 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:32:45,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:32:45,682 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:32:45,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:32:45,683 INFO L82 PathProgramCache]: Analyzing trace with hash -2001683715, now seen corresponding path program 1 times [2020-09-21 12:32:45,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:32:45,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1061236429] [2020-09-21 12:32:45,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:32:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:45,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:45,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:45,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:45,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:45,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-21 12:32:45,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:32:45,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-09-21 12:32:45,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:45,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:32:45,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 12:32:45,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:32:45,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 12:32:45,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:32:45,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:45,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:45,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:45,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:32:45,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:45,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:32:45,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:45,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:45,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:45,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:45,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:45,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:32:45,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1061236429] [2020-09-21 12:32:45,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:32:45,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:32:45,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952714861] [2020-09-21 12:32:45,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:32:45,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:32:46,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:32:46,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:32:46,001 INFO L87 Difference]: Start difference. First operand 228 states and 397 transitions. Second operand 4 states. [2020-09-21 12:32:47,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:32:47,079 INFO L93 Difference]: Finished difference Result 453 states and 792 transitions. [2020-09-21 12:32:47,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:32:47,080 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-09-21 12:32:47,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:32:47,086 INFO L225 Difference]: With dead ends: 453 [2020-09-21 12:32:47,086 INFO L226 Difference]: Without dead ends: 231 [2020-09-21 12:32:47,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:32:47,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-09-21 12:32:47,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2020-09-21 12:32:47,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-09-21 12:32:47,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 400 transitions. [2020-09-21 12:32:47,129 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 400 transitions. Word has length 14 [2020-09-21 12:32:47,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:32:47,130 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 400 transitions. [2020-09-21 12:32:47,131 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:32:47,131 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 400 transitions. [2020-09-21 12:32:47,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-21 12:32:47,132 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:32:47,133 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:32:47,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:32:47,133 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:32:47,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:32:47,134 INFO L82 PathProgramCache]: Analyzing trace with hash 912246429, now seen corresponding path program 1 times [2020-09-21 12:32:47,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:32:47,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1997391651] [2020-09-21 12:32:47,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:32:47,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:47,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:47,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:47,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:47,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 12:32:47,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:32:47,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-09-21 12:32:47,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:47,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:32:47,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 12:32:47,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:32:47,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:47,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:32:47,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:47,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:47,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:47,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:32:47,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:47,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:32:47,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:47,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:47,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:47,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:47,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:47,437 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:32:47,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1997391651] [2020-09-21 12:32:47,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:32:47,438 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:32:47,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107733620] [2020-09-21 12:32:47,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:32:47,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:32:47,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:32:47,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:32:47,440 INFO L87 Difference]: Start difference. First operand 231 states and 400 transitions. Second operand 4 states. [2020-09-21 12:32:48,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:32:48,826 INFO L93 Difference]: Finished difference Result 673 states and 1180 transitions. [2020-09-21 12:32:48,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:32:48,826 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-09-21 12:32:48,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:32:48,830 INFO L225 Difference]: With dead ends: 673 [2020-09-21 12:32:48,830 INFO L226 Difference]: Without dead ends: 441 [2020-09-21 12:32:48,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:32:48,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2020-09-21 12:32:48,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 424. [2020-09-21 12:32:48,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-09-21 12:32:48,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 754 transitions. [2020-09-21 12:32:48,860 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 754 transitions. Word has length 19 [2020-09-21 12:32:48,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:32:48,861 INFO L479 AbstractCegarLoop]: Abstraction has 424 states and 754 transitions. [2020-09-21 12:32:48,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:32:48,861 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 754 transitions. [2020-09-21 12:32:48,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-21 12:32:48,862 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:32:48,862 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:32:48,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:32:48,863 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:32:48,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:32:48,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1773715145, now seen corresponding path program 1 times [2020-09-21 12:32:48,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:32:48,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1594603212] [2020-09-21 12:32:48,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:32:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:48,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:48,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:48,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-21 12:32:48,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:48,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-21 12:32:48,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:48,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:32:48,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 12:32:48,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:32:48,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:49,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:32:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:49,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:49,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:49,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:32:49,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:49,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:32:49,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:49,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:49,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:49,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:49,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:49,054 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:32:49,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1594603212] [2020-09-21 12:32:49,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:32:49,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:32:49,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175931520] [2020-09-21 12:32:49,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:32:49,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:32:49,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:32:49,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:32:49,056 INFO L87 Difference]: Start difference. First operand 424 states and 754 transitions. Second operand 4 states. [2020-09-21 12:32:49,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:32:49,268 INFO L93 Difference]: Finished difference Result 821 states and 1473 transitions. [2020-09-21 12:32:49,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:32:49,269 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-09-21 12:32:49,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:32:49,273 INFO L225 Difference]: With dead ends: 821 [2020-09-21 12:32:49,273 INFO L226 Difference]: Without dead ends: 404 [2020-09-21 12:32:49,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:32:49,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-09-21 12:32:49,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2020-09-21 12:32:49,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2020-09-21 12:32:49,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 722 transitions. [2020-09-21 12:32:49,293 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 722 transitions. Word has length 20 [2020-09-21 12:32:49,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:32:49,293 INFO L479 AbstractCegarLoop]: Abstraction has 404 states and 722 transitions. [2020-09-21 12:32:49,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:32:49,294 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 722 transitions. [2020-09-21 12:32:49,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-21 12:32:49,295 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:32:49,295 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:32:49,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:32:49,296 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:32:49,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:32:49,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1582631867, now seen corresponding path program 1 times [2020-09-21 12:32:49,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:32:49,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1490704641] [2020-09-21 12:32:49,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:32:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:49,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:49,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:49,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:49,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 12:32:49,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:32:49,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-21 12:32:49,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:49,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:32:49,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 12:32:49,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:32:49,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:49,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:32:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:49,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:49,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:49,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:32:49,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:49,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:32:49,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:49,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:49,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:49,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:49,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:32:49,510 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:32:49,511 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1490704641] [2020-09-21 12:32:49,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:32:49,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:32:49,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164710733] [2020-09-21 12:32:49,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:32:49,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:32:49,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:32:49,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:32:49,514 INFO L87 Difference]: Start difference. First operand 404 states and 722 transitions. Second operand 4 states. [2020-09-21 12:32:50,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:32:50,476 INFO L93 Difference]: Finished difference Result 646 states and 1144 transitions. [2020-09-21 12:32:50,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:32:50,477 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-09-21 12:32:50,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:32:50,479 INFO L225 Difference]: With dead ends: 646 [2020-09-21 12:32:50,480 INFO L226 Difference]: Without dead ends: 254 [2020-09-21 12:32:50,481 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:32:50,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-09-21 12:32:50,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 252. [2020-09-21 12:32:50,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-09-21 12:32:50,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 430 transitions. [2020-09-21 12:32:50,492 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 430 transitions. Word has length 23 [2020-09-21 12:32:50,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:32:50,492 INFO L479 AbstractCegarLoop]: Abstraction has 252 states and 430 transitions. [2020-09-21 12:32:50,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:32:50,493 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 430 transitions. [2020-09-21 12:32:50,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-21 12:32:50,494 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:32:50,494 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:32:50,494 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:32:50,494 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:32:50,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:32:50,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1006681014, now seen corresponding path program 1 times [2020-09-21 12:32:50,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:32:50,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1317047913] [2020-09-21 12:32:50,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:32:50,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:50,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:50,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:50,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 12:32:50,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:50,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-21 12:32:50,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:50,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:32:50,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 12:32:50,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:32:50,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:50,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:32:50,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:50,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:50,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:50,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:32:50,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:50,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:32:50,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:50,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:50,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:50,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:50,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:50,645 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:32:50,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1317047913] [2020-09-21 12:32:50,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:32:50,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:32:50,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656064755] [2020-09-21 12:32:50,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:32:50,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:32:50,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:32:50,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:32:50,648 INFO L87 Difference]: Start difference. First operand 252 states and 430 transitions. Second operand 4 states. [2020-09-21 12:32:50,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:32:50,906 INFO L93 Difference]: Finished difference Result 254 states and 431 transitions. [2020-09-21 12:32:50,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:32:50,907 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-09-21 12:32:50,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:32:50,909 INFO L225 Difference]: With dead ends: 254 [2020-09-21 12:32:50,909 INFO L226 Difference]: Without dead ends: 252 [2020-09-21 12:32:50,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:32:50,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-09-21 12:32:50,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2020-09-21 12:32:50,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-09-21 12:32:50,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 422 transitions. [2020-09-21 12:32:50,920 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 422 transitions. Word has length 23 [2020-09-21 12:32:50,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:32:50,920 INFO L479 AbstractCegarLoop]: Abstraction has 252 states and 422 transitions. [2020-09-21 12:32:50,920 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:32:50,920 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 422 transitions. [2020-09-21 12:32:50,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-21 12:32:50,921 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:32:50,921 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:32:50,922 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:32:50,922 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:32:50,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:32:50,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1124944987, now seen corresponding path program 1 times [2020-09-21 12:32:50,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:32:50,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593733527] [2020-09-21 12:32:50,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:32:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:50,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:51,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:51,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 12:32:51,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:51,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-21 12:32:51,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:51,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:32:51,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 12:32:51,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 12:32:51,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:51,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:32:51,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:51,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:51,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:51,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:32:51,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:51,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:32:51,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:51,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:51,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:51,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:51,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:51,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:32:51,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593733527] [2020-09-21 12:32:51,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:32:51,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:32:51,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575775471] [2020-09-21 12:32:51,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:32:51,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:32:51,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:32:51,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:32:51,153 INFO L87 Difference]: Start difference. First operand 252 states and 422 transitions. Second operand 4 states. [2020-09-21 12:32:52,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:32:52,478 INFO L93 Difference]: Finished difference Result 668 states and 1128 transitions. [2020-09-21 12:32:52,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:32:52,479 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-09-21 12:32:52,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:32:52,482 INFO L225 Difference]: With dead ends: 668 [2020-09-21 12:32:52,482 INFO L226 Difference]: Without dead ends: 424 [2020-09-21 12:32:52,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:32:52,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-09-21 12:32:52,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 411. [2020-09-21 12:32:52,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-09-21 12:32:52,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 626 transitions. [2020-09-21 12:32:52,497 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 626 transitions. Word has length 26 [2020-09-21 12:32:52,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:32:52,498 INFO L479 AbstractCegarLoop]: Abstraction has 411 states and 626 transitions. [2020-09-21 12:32:52,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:32:52,498 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 626 transitions. [2020-09-21 12:32:52,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-21 12:32:52,500 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:32:52,500 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:32:52,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 12:32:52,500 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:32:52,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:32:52,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1803598039, now seen corresponding path program 1 times [2020-09-21 12:32:52,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:32:52,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1120740481] [2020-09-21 12:32:52,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:32:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:52,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:52,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:52,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-21 12:32:52,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:52,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-09-21 12:32:52,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:52,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:32:52,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-09-21 12:32:52,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:32:52,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:52,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:32:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:52,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:52,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:52,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:32:52,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:52,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:32:52,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:52,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:52,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:52,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:52,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:52,780 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-21 12:32:52,781 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1120740481] [2020-09-21 12:32:52,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:32:52,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:32:52,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129910997] [2020-09-21 12:32:52,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:32:52,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:32:52,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:32:52,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:32:52,783 INFO L87 Difference]: Start difference. First operand 411 states and 626 transitions. Second operand 4 states. [2020-09-21 12:32:52,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:32:52,959 INFO L93 Difference]: Finished difference Result 745 states and 1145 transitions. [2020-09-21 12:32:52,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:32:52,959 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-09-21 12:32:52,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:32:52,962 INFO L225 Difference]: With dead ends: 745 [2020-09-21 12:32:52,962 INFO L226 Difference]: Without dead ends: 346 [2020-09-21 12:32:52,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:32:52,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-09-21 12:32:52,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-09-21 12:32:52,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-09-21 12:32:52,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 530 transitions. [2020-09-21 12:32:52,974 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 530 transitions. Word has length 36 [2020-09-21 12:32:52,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:32:52,976 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 530 transitions. [2020-09-21 12:32:52,976 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:32:52,976 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 530 transitions. [2020-09-21 12:32:52,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-21 12:32:52,984 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:32:52,985 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:32:52,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 12:32:52,985 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:32:52,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:32:52,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1771198676, now seen corresponding path program 1 times [2020-09-21 12:32:52,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:32:52,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1223658097] [2020-09-21 12:32:52,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:32:53,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:53,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:53,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:53,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-21 12:32:53,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:53,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-09-21 12:32:53,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:53,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:32:53,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-09-21 12:32:53,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:32:53,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:32:53,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:32:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:53,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:53,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:53,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:32:53,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:53,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:32:53,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:53,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:53,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:53,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:53,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:53,268 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-21 12:32:53,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1223658097] [2020-09-21 12:32:53,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:32:53,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:32:53,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765169739] [2020-09-21 12:32:53,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:32:53,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:32:53,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:32:53,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:32:53,276 INFO L87 Difference]: Start difference. First operand 346 states and 530 transitions. Second operand 4 states. [2020-09-21 12:32:53,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:32:53,476 INFO L93 Difference]: Finished difference Result 674 states and 1041 transitions. [2020-09-21 12:32:53,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:32:53,477 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-09-21 12:32:53,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:32:53,481 INFO L225 Difference]: With dead ends: 674 [2020-09-21 12:32:53,481 INFO L226 Difference]: Without dead ends: 340 [2020-09-21 12:32:53,484 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:32:53,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-09-21 12:32:53,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2020-09-21 12:32:53,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-09-21 12:32:53,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 510 transitions. [2020-09-21 12:32:53,499 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 510 transitions. Word has length 37 [2020-09-21 12:32:53,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:32:53,499 INFO L479 AbstractCegarLoop]: Abstraction has 340 states and 510 transitions. [2020-09-21 12:32:53,499 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:32:53,500 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 510 transitions. [2020-09-21 12:32:53,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-09-21 12:32:53,501 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:32:53,501 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:32:53,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 12:32:53,502 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:32:53,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:32:53,502 INFO L82 PathProgramCache]: Analyzing trace with hash -2025838196, now seen corresponding path program 1 times [2020-09-21 12:32:53,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:32:53,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [447835998] [2020-09-21 12:32:53,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:32:53,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:53,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:53,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:53,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-21 12:32:53,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:53,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-09-21 12:32:53,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:53,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:32:53,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-09-21 12:32:53,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 12:32:53,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:53,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:32:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:53,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:53,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:53,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:32:53,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:53,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:32:53,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:53,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:53,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:53,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:53,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:53,804 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-21 12:32:53,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [447835998] [2020-09-21 12:32:53,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:32:53,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:32:53,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649198138] [2020-09-21 12:32:53,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:32:53,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:32:53,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:32:53,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:32:53,807 INFO L87 Difference]: Start difference. First operand 340 states and 510 transitions. Second operand 4 states. [2020-09-21 12:32:54,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:32:54,838 INFO L93 Difference]: Finished difference Result 383 states and 551 transitions. [2020-09-21 12:32:54,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:32:54,838 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-09-21 12:32:54,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:32:54,841 INFO L225 Difference]: With dead ends: 383 [2020-09-21 12:32:54,843 INFO L226 Difference]: Without dead ends: 346 [2020-09-21 12:32:54,843 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:32:54,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-09-21 12:32:54,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 340. [2020-09-21 12:32:54,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-09-21 12:32:54,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 474 transitions. [2020-09-21 12:32:54,856 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 474 transitions. Word has length 41 [2020-09-21 12:32:54,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:32:54,857 INFO L479 AbstractCegarLoop]: Abstraction has 340 states and 474 transitions. [2020-09-21 12:32:54,857 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:32:54,857 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 474 transitions. [2020-09-21 12:32:54,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-21 12:32:54,858 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:32:54,859 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:32:54,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 12:32:54,859 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:32:54,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:32:54,860 INFO L82 PathProgramCache]: Analyzing trace with hash -197451388, now seen corresponding path program 1 times [2020-09-21 12:32:54,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:32:54,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289895609] [2020-09-21 12:32:54,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:32:54,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:54,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:54,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:55,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:55,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-21 12:32:55,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:32:55,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-09-21 12:32:55,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:55,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:32:55,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-09-21 12:32:55,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:32:55,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:32:55,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:32:55,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:55,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:55,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:55,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:32:55,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:55,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:32:55,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:55,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:55,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:55,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:55,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:55,191 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-21 12:32:55,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [289895609] [2020-09-21 12:32:55,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:32:55,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:32:55,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935385393] [2020-09-21 12:32:55,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:32:55,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:32:55,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:32:55,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:32:55,196 INFO L87 Difference]: Start difference. First operand 340 states and 474 transitions. Second operand 4 states. [2020-09-21 12:32:55,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:32:55,362 INFO L93 Difference]: Finished difference Result 649 states and 906 transitions. [2020-09-21 12:32:55,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:32:55,363 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2020-09-21 12:32:55,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:32:55,366 INFO L225 Difference]: With dead ends: 649 [2020-09-21 12:32:55,367 INFO L226 Difference]: Without dead ends: 321 [2020-09-21 12:32:55,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:32:55,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-09-21 12:32:55,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2020-09-21 12:32:55,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-09-21 12:32:55,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 443 transitions. [2020-09-21 12:32:55,380 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 443 transitions. Word has length 42 [2020-09-21 12:32:55,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:32:55,380 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 443 transitions. [2020-09-21 12:32:55,380 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:32:55,381 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 443 transitions. [2020-09-21 12:32:55,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-21 12:32:55,382 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:32:55,382 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:32:55,382 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 12:32:55,383 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:32:55,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:32:55,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1099613084, now seen corresponding path program 1 times [2020-09-21 12:32:55,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:32:55,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1098472459] [2020-09-21 12:32:55,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:32:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:55,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:55,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:55,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 12:32:55,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:55,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-21 12:32:55,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:55,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:32:55,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-21 12:32:55,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:32:55,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:55,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:32:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:32:55,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:32:55,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:32:55,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:32:55,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:32:55,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:32:55,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:32:55,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:32:55,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:32:55,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:32:55,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:32:55,607 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-21 12:32:55,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1098472459] [2020-09-21 12:32:55,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:32:55,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:32:55,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112736825] [2020-09-21 12:32:55,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:32:55,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:32:55,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:32:55,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:32:55,609 INFO L87 Difference]: Start difference. First operand 321 states and 443 transitions. Second operand 4 states. [2020-09-21 12:32:56,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:32:56,109 INFO L93 Difference]: Finished difference Result 490 states and 686 transitions. [2020-09-21 12:32:56,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:32:56,110 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-09-21 12:32:56,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:32:56,110 INFO L225 Difference]: With dead ends: 490 [2020-09-21 12:32:56,111 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 12:32:56,112 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:32:56,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 12:32:56,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 12:32:56,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 12:32:56,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 12:32:56,114 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2020-09-21 12:32:56,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:32:56,114 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 12:32:56,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:32:56,115 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 12:32:56,115 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 12:32:56,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 12:32:56,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 12:32:56,590 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 25 [2020-09-21 12:32:56,757 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 25 [2020-09-21 12:32:56,761 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 12:32:56,762 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~m_connect_2~0 |old(~m_connect_2~0)|) (= ~m_getValueX~0 |old(~m_getValueX~0)|) (= ~m_update~0 |old(~m_update~0)|) (= ~m_connect_1~0 |old(~m_connect_1~0)|) (= ~m_dataReceived~0 |old(~m_dataReceived~0)|) (= ~m_getValueY~0 |old(~m_getValueY~0)|) (= ~m_init~0 |old(~m_init~0)|) (= ~m_Accelerometer~0 |old(~m_Accelerometer~0)|) (= ~m_disconnect~0 |old(~m_disconnect~0)|)) [2020-09-21 12:32:56,762 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 12:32:56,762 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 12:32:56,762 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-21 12:32:56,762 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 12:32:56,762 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 12:32:56,763 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 16 1255) no Hoare annotation was computed. [2020-09-21 12:32:56,763 INFO L268 CegarLoopResult]: For program point L895(lines 895 897) no Hoare annotation was computed. [2020-09-21 12:32:56,763 INFO L268 CegarLoopResult]: For program point L763(lines 763 774) no Hoare annotation was computed. [2020-09-21 12:32:56,763 INFO L268 CegarLoopResult]: For program point L697(lines 697 712) no Hoare annotation was computed. [2020-09-21 12:32:56,763 INFO L268 CegarLoopResult]: For program point L367(lines 367 369) no Hoare annotation was computed. [2020-09-21 12:32:56,763 INFO L268 CegarLoopResult]: For program point L235(lines 235 237) no Hoare annotation was computed. [2020-09-21 12:32:56,763 INFO L268 CegarLoopResult]: For program point L103(lines 103 105) no Hoare annotation was computed. [2020-09-21 12:32:56,764 INFO L268 CegarLoopResult]: For program point L831(lines 831 833) no Hoare annotation was computed. [2020-09-21 12:32:56,764 INFO L268 CegarLoopResult]: For program point L699(lines 699 710) no Hoare annotation was computed. [2020-09-21 12:32:56,764 INFO L268 CegarLoopResult]: For program point L633(lines 633 648) no Hoare annotation was computed. [2020-09-21 12:32:56,764 INFO L268 CegarLoopResult]: For program point L171(lines 171 173) no Hoare annotation was computed. [2020-09-21 12:32:56,764 INFO L268 CegarLoopResult]: For program point L1229(lines 1229 1244) no Hoare annotation was computed. [2020-09-21 12:32:56,764 INFO L268 CegarLoopResult]: For program point L767(lines 767 769) no Hoare annotation was computed. [2020-09-21 12:32:56,764 INFO L268 CegarLoopResult]: For program point L635(lines 635 646) no Hoare annotation was computed. [2020-09-21 12:32:56,765 INFO L268 CegarLoopResult]: For program point L569(lines 569 584) no Hoare annotation was computed. [2020-09-21 12:32:56,765 INFO L268 CegarLoopResult]: For program point L1231(lines 1231 1242) no Hoare annotation was computed. [2020-09-21 12:32:56,765 INFO L268 CegarLoopResult]: For program point L1165(lines 1165 1180) no Hoare annotation was computed. [2020-09-21 12:32:56,766 INFO L268 CegarLoopResult]: For program point L1033(lines 1033 1048) no Hoare annotation was computed. [2020-09-21 12:32:56,766 INFO L268 CegarLoopResult]: For program point L703(lines 703 705) no Hoare annotation was computed. [2020-09-21 12:32:56,766 INFO L268 CegarLoopResult]: For program point L571(lines 571 582) no Hoare annotation was computed. [2020-09-21 12:32:56,766 INFO L268 CegarLoopResult]: For program point L505(lines 505 520) no Hoare annotation was computed. [2020-09-21 12:32:56,767 INFO L268 CegarLoopResult]: For program point L1167(lines 1167 1178) no Hoare annotation was computed. [2020-09-21 12:32:56,767 INFO L268 CegarLoopResult]: For program point L1101(lines 1101 1116) no Hoare annotation was computed. [2020-09-21 12:32:56,767 INFO L268 CegarLoopResult]: For program point L44(lines 44 63) no Hoare annotation was computed. [2020-09-21 12:32:56,767 INFO L268 CegarLoopResult]: For program point L1035(lines 1035 1046) no Hoare annotation was computed. [2020-09-21 12:32:56,767 INFO L268 CegarLoopResult]: For program point L969(lines 969 984) no Hoare annotation was computed. [2020-09-21 12:32:56,767 INFO L268 CegarLoopResult]: For program point L639(lines 639 641) no Hoare annotation was computed. [2020-09-21 12:32:56,768 INFO L268 CegarLoopResult]: For program point L507(lines 507 518) no Hoare annotation was computed. [2020-09-21 12:32:56,769 INFO L268 CegarLoopResult]: For program point L441(lines 441 456) no Hoare annotation was computed. [2020-09-21 12:32:56,769 INFO L268 CegarLoopResult]: For program point L309(lines 309 324) no Hoare annotation was computed. [2020-09-21 12:32:56,769 INFO L268 CegarLoopResult]: For program point L45(lines 45 60) no Hoare annotation was computed. [2020-09-21 12:32:56,769 INFO L268 CegarLoopResult]: For program point L1235(lines 1235 1237) no Hoare annotation was computed. [2020-09-21 12:32:56,770 INFO L268 CegarLoopResult]: For program point L1103(lines 1103 1114) no Hoare annotation was computed. [2020-09-21 12:32:56,770 INFO L268 CegarLoopResult]: For program point L971(lines 971 982) no Hoare annotation was computed. [2020-09-21 12:32:56,770 INFO L268 CegarLoopResult]: For program point L905(lines 905 920) no Hoare annotation was computed. [2020-09-21 12:32:56,772 INFO L268 CegarLoopResult]: For program point L575(lines 575 577) no Hoare annotation was computed. [2020-09-21 12:32:56,772 INFO L268 CegarLoopResult]: For program point L443(lines 443 454) no Hoare annotation was computed. [2020-09-21 12:32:56,772 INFO L268 CegarLoopResult]: For program point L377(lines 377 392) no Hoare annotation was computed. [2020-09-21 12:32:56,773 INFO L268 CegarLoopResult]: For program point L311(lines 311 322) no Hoare annotation was computed. [2020-09-21 12:32:56,773 INFO L268 CegarLoopResult]: For program point L245(lines 245 260) no Hoare annotation was computed. [2020-09-21 12:32:56,773 INFO L264 CegarLoopResult]: At program point L1236(lines 16 1255) the Hoare annotation is: false [2020-09-21 12:32:56,774 INFO L268 CegarLoopResult]: For program point L113(lines 113 128) no Hoare annotation was computed. [2020-09-21 12:32:56,774 INFO L268 CegarLoopResult]: For program point L47(lines 47 58) no Hoare annotation was computed. [2020-09-21 12:32:56,774 INFO L268 CegarLoopResult]: For program point L1171(lines 1171 1173) no Hoare annotation was computed. [2020-09-21 12:32:56,774 INFO L268 CegarLoopResult]: For program point L1039(lines 1039 1041) no Hoare annotation was computed. [2020-09-21 12:32:56,774 INFO L268 CegarLoopResult]: For program point L907(lines 907 918) no Hoare annotation was computed. [2020-09-21 12:32:56,774 INFO L268 CegarLoopResult]: For program point L841(lines 841 856) no Hoare annotation was computed. [2020-09-21 12:32:56,774 INFO L268 CegarLoopResult]: For program point L511(lines 511 513) no Hoare annotation was computed. [2020-09-21 12:32:56,775 INFO L268 CegarLoopResult]: For program point L379(lines 379 390) no Hoare annotation was computed. [2020-09-21 12:32:56,775 INFO L268 CegarLoopResult]: For program point L247(lines 247 258) no Hoare annotation was computed. [2020-09-21 12:32:56,775 INFO L268 CegarLoopResult]: For program point L181(lines 181 196) no Hoare annotation was computed. [2020-09-21 12:32:56,775 INFO L268 CegarLoopResult]: For program point L115(lines 115 126) no Hoare annotation was computed. [2020-09-21 12:32:56,775 INFO L268 CegarLoopResult]: For program point L1107(lines 1107 1109) no Hoare annotation was computed. [2020-09-21 12:32:56,775 INFO L268 CegarLoopResult]: For program point L975(lines 975 977) no Hoare annotation was computed. [2020-09-21 12:32:56,776 INFO L268 CegarLoopResult]: For program point L843(lines 843 854) no Hoare annotation was computed. [2020-09-21 12:32:56,776 INFO L268 CegarLoopResult]: For program point L777(lines 777 792) no Hoare annotation was computed. [2020-09-21 12:32:56,776 INFO L268 CegarLoopResult]: For program point L447(lines 447 449) no Hoare annotation was computed. [2020-09-21 12:32:56,776 INFO L268 CegarLoopResult]: For program point L315(lines 315 317) no Hoare annotation was computed. [2020-09-21 12:32:56,776 INFO L268 CegarLoopResult]: For program point L183(lines 183 194) no Hoare annotation was computed. [2020-09-21 12:32:56,776 INFO L268 CegarLoopResult]: For program point L51(lines 51 53) no Hoare annotation was computed. [2020-09-21 12:32:56,776 INFO L268 CegarLoopResult]: For program point L911(lines 911 913) no Hoare annotation was computed. [2020-09-21 12:32:56,777 INFO L268 CegarLoopResult]: For program point L779(lines 779 790) no Hoare annotation was computed. [2020-09-21 12:32:56,777 INFO L268 CegarLoopResult]: For program point L713(lines 713 728) no Hoare annotation was computed. [2020-09-21 12:32:56,777 INFO L268 CegarLoopResult]: For program point L383(lines 383 385) no Hoare annotation was computed. [2020-09-21 12:32:56,777 INFO L268 CegarLoopResult]: For program point L251(lines 251 253) no Hoare annotation was computed. [2020-09-21 12:32:56,777 INFO L268 CegarLoopResult]: For program point L119(lines 119 121) no Hoare annotation was computed. [2020-09-21 12:32:56,777 INFO L268 CegarLoopResult]: For program point L847(lines 847 849) no Hoare annotation was computed. [2020-09-21 12:32:56,777 INFO L268 CegarLoopResult]: For program point L715(lines 715 726) no Hoare annotation was computed. [2020-09-21 12:32:56,778 INFO L268 CegarLoopResult]: For program point L649(lines 649 664) no Hoare annotation was computed. [2020-09-21 12:32:56,778 INFO L268 CegarLoopResult]: For program point L187(lines 187 189) no Hoare annotation was computed. [2020-09-21 12:32:56,778 INFO L268 CegarLoopResult]: For program point L783(lines 783 785) no Hoare annotation was computed. [2020-09-21 12:32:56,778 INFO L268 CegarLoopResult]: For program point L651(lines 651 662) no Hoare annotation was computed. [2020-09-21 12:32:56,778 INFO L268 CegarLoopResult]: For program point L585(lines 585 600) no Hoare annotation was computed. [2020-09-21 12:32:56,778 INFO L264 CegarLoopResult]: At program point L1246(lines 32 1250) the Hoare annotation is: (let ((.cse0 (<= 1 main_~this_m_delta~0)) (.cse2 (<= 1 main_~this_m_conn~0)) (.cse1 (= main_~this_m_conn_data_listener~0 0))) (or (and (<= 2 main_~q~0) (= main_~this_m_conn~0 0) .cse0 .cse1 (<= main_~q~0 2)) (and (= main_~q~0 0) .cse0 .cse1) (and (<= 1 main_~this_m_conn_data_listener~0) (<= 3 main_~q~0) .cse0 .cse2 (<= main_~q~0 3)) (and (<= 4 main_~q~0) .cse0 .cse2 .cse1))) [2020-09-21 12:32:56,779 INFO L268 CegarLoopResult]: For program point L1181(lines 1181 1196) no Hoare annotation was computed. [2020-09-21 12:32:56,779 INFO L268 CegarLoopResult]: For program point L1049(lines 1049 1064) no Hoare annotation was computed. [2020-09-21 12:32:56,779 INFO L268 CegarLoopResult]: For program point L719(lines 719 721) no Hoare annotation was computed. [2020-09-21 12:32:56,779 INFO L268 CegarLoopResult]: For program point L587(lines 587 598) no Hoare annotation was computed. [2020-09-21 12:32:56,779 INFO L268 CegarLoopResult]: For program point L521(lines 521 536) no Hoare annotation was computed. [2020-09-21 12:32:56,779 INFO L268 CegarLoopResult]: For program point L1183(lines 1183 1194) no Hoare annotation was computed. [2020-09-21 12:32:56,779 INFO L268 CegarLoopResult]: For program point L1117(lines 1117 1132) no Hoare annotation was computed. [2020-09-21 12:32:56,780 INFO L268 CegarLoopResult]: For program point L1051(lines 1051 1062) no Hoare annotation was computed. [2020-09-21 12:32:56,780 INFO L268 CegarLoopResult]: For program point L985(lines 985 1000) no Hoare annotation was computed. [2020-09-21 12:32:56,780 INFO L268 CegarLoopResult]: For program point L655(lines 655 657) no Hoare annotation was computed. [2020-09-21 12:32:56,780 INFO L268 CegarLoopResult]: For program point L523(lines 523 534) no Hoare annotation was computed. [2020-09-21 12:32:56,780 INFO L268 CegarLoopResult]: For program point L457(lines 457 472) no Hoare annotation was computed. [2020-09-21 12:32:56,780 INFO L268 CegarLoopResult]: For program point L1119(lines 1119 1130) no Hoare annotation was computed. [2020-09-21 12:32:56,780 INFO L268 CegarLoopResult]: For program point L987(lines 987 998) no Hoare annotation was computed. [2020-09-21 12:32:56,781 INFO L268 CegarLoopResult]: For program point L921(lines 921 936) no Hoare annotation was computed. [2020-09-21 12:32:56,781 INFO L268 CegarLoopResult]: For program point L591(lines 591 593) no Hoare annotation was computed. [2020-09-21 12:32:56,781 INFO L268 CegarLoopResult]: For program point L459(lines 459 470) no Hoare annotation was computed. [2020-09-21 12:32:56,782 INFO L268 CegarLoopResult]: For program point L393(lines 393 408) no Hoare annotation was computed. [2020-09-21 12:32:56,782 INFO L268 CegarLoopResult]: For program point L261(lines 261 276) no Hoare annotation was computed. [2020-09-21 12:32:56,782 INFO L268 CegarLoopResult]: For program point L129(lines 129 144) no Hoare annotation was computed. [2020-09-21 12:32:56,782 INFO L268 CegarLoopResult]: For program point L328(lines 328 1067) no Hoare annotation was computed. [2020-09-21 12:32:56,782 INFO L268 CegarLoopResult]: For program point L1187(lines 1187 1189) no Hoare annotation was computed. [2020-09-21 12:32:56,783 INFO L268 CegarLoopResult]: For program point L64(lines 64 147) no Hoare annotation was computed. [2020-09-21 12:32:56,783 INFO L268 CegarLoopResult]: For program point L1055(lines 1055 1057) no Hoare annotation was computed. [2020-09-21 12:32:56,783 INFO L268 CegarLoopResult]: For program point L923(lines 923 934) no Hoare annotation was computed. [2020-09-21 12:32:56,783 INFO L268 CegarLoopResult]: For program point L857(lines 857 872) no Hoare annotation was computed. [2020-09-21 12:32:56,783 INFO L268 CegarLoopResult]: For program point L527(lines 527 529) no Hoare annotation was computed. [2020-09-21 12:32:56,783 INFO L268 CegarLoopResult]: For program point L395(lines 395 406) no Hoare annotation was computed. [2020-09-21 12:32:56,783 INFO L268 CegarLoopResult]: For program point L329(lines 329 344) no Hoare annotation was computed. [2020-09-21 12:32:56,784 INFO L268 CegarLoopResult]: For program point L263(lines 263 274) no Hoare annotation was computed. [2020-09-21 12:32:56,784 INFO L268 CegarLoopResult]: For program point L197(lines 197 212) no Hoare annotation was computed. [2020-09-21 12:32:56,784 INFO L268 CegarLoopResult]: For program point L131(lines 131 142) no Hoare annotation was computed. [2020-09-21 12:32:56,784 INFO L268 CegarLoopResult]: For program point L65(lines 65 80) no Hoare annotation was computed. [2020-09-21 12:32:56,784 INFO L268 CegarLoopResult]: For program point L1123(lines 1123 1125) no Hoare annotation was computed. [2020-09-21 12:32:56,784 INFO L268 CegarLoopResult]: For program point L991(lines 991 993) no Hoare annotation was computed. [2020-09-21 12:32:56,785 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-09-21 12:32:56,785 INFO L268 CegarLoopResult]: For program point L793(lines 793 808) no Hoare annotation was computed. [2020-09-21 12:32:56,785 INFO L268 CegarLoopResult]: For program point L463(lines 463 465) no Hoare annotation was computed. [2020-09-21 12:32:56,785 INFO L268 CegarLoopResult]: For program point L331(lines 331 342) no Hoare annotation was computed. [2020-09-21 12:32:56,785 INFO L268 CegarLoopResult]: For program point L199(lines 199 210) no Hoare annotation was computed. [2020-09-21 12:32:56,785 INFO L268 CegarLoopResult]: For program point L67(lines 67 78) no Hoare annotation was computed. [2020-09-21 12:32:56,785 INFO L268 CegarLoopResult]: For program point L927(lines 927 929) no Hoare annotation was computed. [2020-09-21 12:32:56,786 INFO L268 CegarLoopResult]: For program point L795(lines 795 806) no Hoare annotation was computed. [2020-09-21 12:32:56,786 INFO L268 CegarLoopResult]: For program point L729(lines 729 744) no Hoare annotation was computed. [2020-09-21 12:32:56,786 INFO L268 CegarLoopResult]: For program point L399(lines 399 401) no Hoare annotation was computed. [2020-09-21 12:32:56,786 INFO L268 CegarLoopResult]: For program point L267(lines 267 269) no Hoare annotation was computed. [2020-09-21 12:32:56,786 INFO L268 CegarLoopResult]: For program point L135(lines 135 137) no Hoare annotation was computed. [2020-09-21 12:32:56,786 INFO L268 CegarLoopResult]: For program point L863(lines 863 865) no Hoare annotation was computed. [2020-09-21 12:32:56,787 INFO L268 CegarLoopResult]: For program point L731(lines 731 742) no Hoare annotation was computed. [2020-09-21 12:32:56,787 INFO L268 CegarLoopResult]: For program point L665(lines 665 680) no Hoare annotation was computed. [2020-09-21 12:32:56,787 INFO L268 CegarLoopResult]: For program point L335(lines 335 337) no Hoare annotation was computed. [2020-09-21 12:32:56,787 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 16 1255) no Hoare annotation was computed. [2020-09-21 12:32:56,787 INFO L268 CegarLoopResult]: For program point L203(lines 203 205) no Hoare annotation was computed. [2020-09-21 12:32:56,787 INFO L268 CegarLoopResult]: For program point L71(lines 71 73) no Hoare annotation was computed. [2020-09-21 12:32:56,787 INFO L268 CegarLoopResult]: For program point L799(lines 799 801) no Hoare annotation was computed. [2020-09-21 12:32:56,788 INFO L268 CegarLoopResult]: For program point L667(lines 667 678) no Hoare annotation was computed. [2020-09-21 12:32:56,788 INFO L268 CegarLoopResult]: For program point L601(lines 601 616) no Hoare annotation was computed. [2020-09-21 12:32:56,788 INFO L268 CegarLoopResult]: For program point L1197(lines 1197 1212) no Hoare annotation was computed. [2020-09-21 12:32:56,788 INFO L268 CegarLoopResult]: For program point L735(lines 735 737) no Hoare annotation was computed. [2020-09-21 12:32:56,788 INFO L268 CegarLoopResult]: For program point L603(lines 603 614) no Hoare annotation was computed. [2020-09-21 12:32:56,788 INFO L268 CegarLoopResult]: For program point L537(lines 537 552) no Hoare annotation was computed. [2020-09-21 12:32:56,789 INFO L268 CegarLoopResult]: For program point L1199(lines 1199 1210) no Hoare annotation was computed. [2020-09-21 12:32:56,789 INFO L268 CegarLoopResult]: For program point L1133(lines 1133 1148) no Hoare annotation was computed. [2020-09-21 12:32:56,789 INFO L268 CegarLoopResult]: For program point L1001(lines 1001 1016) no Hoare annotation was computed. [2020-09-21 12:32:56,789 INFO L268 CegarLoopResult]: For program point L671(lines 671 673) no Hoare annotation was computed. [2020-09-21 12:32:56,789 INFO L268 CegarLoopResult]: For program point L539(lines 539 550) no Hoare annotation was computed. [2020-09-21 12:32:56,789 INFO L268 CegarLoopResult]: For program point L473(lines 473 488) no Hoare annotation was computed. [2020-09-21 12:32:56,789 INFO L268 CegarLoopResult]: For program point L1068(lines 1068 1247) no Hoare annotation was computed. [2020-09-21 12:32:56,790 INFO L268 CegarLoopResult]: For program point L1135(lines 1135 1146) no Hoare annotation was computed. [2020-09-21 12:32:56,790 INFO L268 CegarLoopResult]: For program point L1069(lines 1069 1084) no Hoare annotation was computed. [2020-09-21 12:32:56,790 INFO L268 CegarLoopResult]: For program point L1003(lines 1003 1014) no Hoare annotation was computed. [2020-09-21 12:32:56,790 INFO L268 CegarLoopResult]: For program point L937(lines 937 952) no Hoare annotation was computed. [2020-09-21 12:32:56,790 INFO L268 CegarLoopResult]: For program point L607(lines 607 609) no Hoare annotation was computed. [2020-09-21 12:32:56,790 INFO L268 CegarLoopResult]: For program point L475(lines 475 486) no Hoare annotation was computed. [2020-09-21 12:32:56,791 INFO L268 CegarLoopResult]: For program point L409(lines 409 424) no Hoare annotation was computed. [2020-09-21 12:32:56,791 INFO L268 CegarLoopResult]: For program point L277(lines 277 292) no Hoare annotation was computed. [2020-09-21 12:32:56,791 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1254) no Hoare annotation was computed. [2020-09-21 12:32:56,791 INFO L268 CegarLoopResult]: For program point L1203(lines 1203 1205) no Hoare annotation was computed. [2020-09-21 12:32:56,791 INFO L268 CegarLoopResult]: For program point L1071(lines 1071 1082) no Hoare annotation was computed. [2020-09-21 12:32:56,791 INFO L268 CegarLoopResult]: For program point L939(lines 939 950) no Hoare annotation was computed. [2020-09-21 12:32:56,791 INFO L268 CegarLoopResult]: For program point L873(lines 873 888) no Hoare annotation was computed. [2020-09-21 12:32:56,792 INFO L268 CegarLoopResult]: For program point L543(lines 543 545) no Hoare annotation was computed. [2020-09-21 12:32:56,792 INFO L268 CegarLoopResult]: For program point L411(lines 411 422) no Hoare annotation was computed. [2020-09-21 12:32:56,792 INFO L268 CegarLoopResult]: For program point L345(lines 345 360) no Hoare annotation was computed. [2020-09-21 12:32:56,792 INFO L268 CegarLoopResult]: For program point L279(lines 279 290) no Hoare annotation was computed. [2020-09-21 12:32:56,792 INFO L268 CegarLoopResult]: For program point L213(lines 213 228) no Hoare annotation was computed. [2020-09-21 12:32:56,792 INFO L268 CegarLoopResult]: For program point L81(lines 81 96) no Hoare annotation was computed. [2020-09-21 12:32:56,792 INFO L268 CegarLoopResult]: For program point L148(lines 148 327) no Hoare annotation was computed. [2020-09-21 12:32:56,792 INFO L268 CegarLoopResult]: For program point L1139(lines 1139 1141) no Hoare annotation was computed. [2020-09-21 12:32:56,793 INFO L268 CegarLoopResult]: For program point L1007(lines 1007 1009) no Hoare annotation was computed. [2020-09-21 12:32:56,793 INFO L268 CegarLoopResult]: For program point L875(lines 875 886) no Hoare annotation was computed. [2020-09-21 12:32:56,793 INFO L268 CegarLoopResult]: For program point L809(lines 809 824) no Hoare annotation was computed. [2020-09-21 12:32:56,793 INFO L268 CegarLoopResult]: For program point L479(lines 479 481) no Hoare annotation was computed. [2020-09-21 12:32:56,793 INFO L268 CegarLoopResult]: For program point L347(lines 347 358) no Hoare annotation was computed. [2020-09-21 12:32:56,793 INFO L268 CegarLoopResult]: For program point L215(lines 215 226) no Hoare annotation was computed. [2020-09-21 12:32:56,793 INFO L268 CegarLoopResult]: For program point L149(lines 149 164) no Hoare annotation was computed. [2020-09-21 12:32:56,794 INFO L268 CegarLoopResult]: For program point L83(lines 83 94) no Hoare annotation was computed. [2020-09-21 12:32:56,794 INFO L268 CegarLoopResult]: For program point L1075(lines 1075 1077) no Hoare annotation was computed. [2020-09-21 12:32:56,794 INFO L268 CegarLoopResult]: For program point L943(lines 943 945) no Hoare annotation was computed. [2020-09-21 12:32:56,794 INFO L268 CegarLoopResult]: For program point L811(lines 811 822) no Hoare annotation was computed. [2020-09-21 12:32:56,794 INFO L268 CegarLoopResult]: For program point L745(lines 745 760) no Hoare annotation was computed. [2020-09-21 12:32:56,794 INFO L268 CegarLoopResult]: For program point L415(lines 415 417) no Hoare annotation was computed. [2020-09-21 12:32:56,794 INFO L268 CegarLoopResult]: For program point L283(lines 283 285) no Hoare annotation was computed. [2020-09-21 12:32:56,795 INFO L268 CegarLoopResult]: For program point L151(lines 151 162) no Hoare annotation was computed. [2020-09-21 12:32:56,795 INFO L268 CegarLoopResult]: For program point L879(lines 879 881) no Hoare annotation was computed. [2020-09-21 12:32:56,795 INFO L268 CegarLoopResult]: For program point L747(lines 747 758) no Hoare annotation was computed. [2020-09-21 12:32:56,795 INFO L268 CegarLoopResult]: For program point L681(lines 681 696) no Hoare annotation was computed. [2020-09-21 12:32:56,795 INFO L268 CegarLoopResult]: For program point L351(lines 351 353) no Hoare annotation was computed. [2020-09-21 12:32:56,795 INFO L268 CegarLoopResult]: For program point L219(lines 219 221) no Hoare annotation was computed. [2020-09-21 12:32:56,795 INFO L268 CegarLoopResult]: For program point L87(lines 87 89) no Hoare annotation was computed. [2020-09-21 12:32:56,795 INFO L268 CegarLoopResult]: For program point L815(lines 815 817) no Hoare annotation was computed. [2020-09-21 12:32:56,796 INFO L268 CegarLoopResult]: For program point L683(lines 683 694) no Hoare annotation was computed. [2020-09-21 12:32:56,796 INFO L268 CegarLoopResult]: For program point L617(lines 617 632) no Hoare annotation was computed. [2020-09-21 12:32:56,796 INFO L268 CegarLoopResult]: For program point L155(lines 155 157) no Hoare annotation was computed. [2020-09-21 12:32:56,796 INFO L268 CegarLoopResult]: For program point L1213(lines 1213 1228) no Hoare annotation was computed. [2020-09-21 12:32:56,796 INFO L268 CegarLoopResult]: For program point L751(lines 751 753) no Hoare annotation was computed. [2020-09-21 12:32:56,796 INFO L268 CegarLoopResult]: For program point L619(lines 619 630) no Hoare annotation was computed. [2020-09-21 12:32:56,796 INFO L268 CegarLoopResult]: For program point L553(lines 553 568) no Hoare annotation was computed. [2020-09-21 12:32:56,796 INFO L268 CegarLoopResult]: For program point L1215(lines 1215 1226) no Hoare annotation was computed. [2020-09-21 12:32:56,797 INFO L268 CegarLoopResult]: For program point L1149(lines 1149 1164) no Hoare annotation was computed. [2020-09-21 12:32:56,797 INFO L268 CegarLoopResult]: For program point L1017(lines 1017 1032) no Hoare annotation was computed. [2020-09-21 12:32:56,797 INFO L268 CegarLoopResult]: For program point L687(lines 687 689) no Hoare annotation was computed. [2020-09-21 12:32:56,797 INFO L268 CegarLoopResult]: For program point L555(lines 555 566) no Hoare annotation was computed. [2020-09-21 12:32:56,797 INFO L268 CegarLoopResult]: For program point L489(lines 489 504) no Hoare annotation was computed. [2020-09-21 12:32:56,797 INFO L268 CegarLoopResult]: For program point L1151(lines 1151 1162) no Hoare annotation was computed. [2020-09-21 12:32:56,797 INFO L268 CegarLoopResult]: For program point L1085(lines 1085 1100) no Hoare annotation was computed. [2020-09-21 12:32:56,797 INFO L268 CegarLoopResult]: For program point L1019(lines 1019 1030) no Hoare annotation was computed. [2020-09-21 12:32:56,797 INFO L268 CegarLoopResult]: For program point L953(lines 953 968) no Hoare annotation was computed. [2020-09-21 12:32:56,798 INFO L268 CegarLoopResult]: For program point L623(lines 623 625) no Hoare annotation was computed. [2020-09-21 12:32:56,798 INFO L268 CegarLoopResult]: For program point L491(lines 491 502) no Hoare annotation was computed. [2020-09-21 12:32:56,798 INFO L268 CegarLoopResult]: For program point L425(lines 425 440) no Hoare annotation was computed. [2020-09-21 12:32:56,798 INFO L268 CegarLoopResult]: For program point L293(lines 293 308) no Hoare annotation was computed. [2020-09-21 12:32:56,798 INFO L268 CegarLoopResult]: For program point L1219(lines 1219 1221) no Hoare annotation was computed. [2020-09-21 12:32:56,798 INFO L268 CegarLoopResult]: For program point L1087(lines 1087 1098) no Hoare annotation was computed. [2020-09-21 12:32:56,799 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 16 1255) the Hoare annotation is: true [2020-09-21 12:32:56,799 INFO L268 CegarLoopResult]: For program point L955(lines 955 966) no Hoare annotation was computed. [2020-09-21 12:32:56,799 INFO L268 CegarLoopResult]: For program point L889(lines 889 904) no Hoare annotation was computed. [2020-09-21 12:32:56,799 INFO L268 CegarLoopResult]: For program point L559(lines 559 561) no Hoare annotation was computed. [2020-09-21 12:32:56,799 INFO L268 CegarLoopResult]: For program point L427(lines 427 438) no Hoare annotation was computed. [2020-09-21 12:32:56,799 INFO L268 CegarLoopResult]: For program point L361(lines 361 376) no Hoare annotation was computed. [2020-09-21 12:32:56,799 INFO L268 CegarLoopResult]: For program point L295(lines 295 306) no Hoare annotation was computed. [2020-09-21 12:32:56,799 INFO L268 CegarLoopResult]: For program point L229(lines 229 244) no Hoare annotation was computed. [2020-09-21 12:32:56,799 INFO L268 CegarLoopResult]: For program point L97(lines 97 112) no Hoare annotation was computed. [2020-09-21 12:32:56,800 INFO L268 CegarLoopResult]: For program point L1155(lines 1155 1157) no Hoare annotation was computed. [2020-09-21 12:32:56,800 INFO L268 CegarLoopResult]: For program point L1023(lines 1023 1025) no Hoare annotation was computed. [2020-09-21 12:32:56,801 INFO L264 CegarLoopResult]: At program point L32-2(lines 32 1250) the Hoare annotation is: (let ((.cse0 (= main_~this_m_conn~0 0)) (.cse2 (= main_~this_m_conn_data_listener~0 0)) (.cse1 (<= 1 main_~this_m_delta~0)) (.cse3 (<= 1 main_~this_m_conn~0))) (or (and (<= 2 main_~q~0) .cse0 .cse1 .cse2 (<= main_~q~0 2)) (and (= main_~q~0 0) .cse0 .cse1 .cse2) (and (<= 4 main_~q~0) .cse1 .cse3 .cse2) (and (<= 1 main_~this_m_conn_data_listener~0) (<= 3 main_~q~0) .cse1 .cse3 (<= main_~q~0 3)))) [2020-09-21 12:32:56,802 INFO L268 CegarLoopResult]: For program point L32-3(lines 32 1250) no Hoare annotation was computed. [2020-09-21 12:32:56,802 INFO L268 CegarLoopResult]: For program point L891(lines 891 902) no Hoare annotation was computed. [2020-09-21 12:32:56,802 INFO L268 CegarLoopResult]: For program point L825(lines 825 840) no Hoare annotation was computed. [2020-09-21 12:32:56,802 INFO L268 CegarLoopResult]: For program point L495(lines 495 497) no Hoare annotation was computed. [2020-09-21 12:32:56,802 INFO L268 CegarLoopResult]: For program point L363(lines 363 374) no Hoare annotation was computed. [2020-09-21 12:32:56,802 INFO L268 CegarLoopResult]: For program point L231(lines 231 242) no Hoare annotation was computed. [2020-09-21 12:32:56,802 INFO L268 CegarLoopResult]: For program point L165(lines 165 180) no Hoare annotation was computed. [2020-09-21 12:32:56,802 INFO L268 CegarLoopResult]: For program point L99(lines 99 110) no Hoare annotation was computed. [2020-09-21 12:32:56,803 INFO L268 CegarLoopResult]: For program point L1091(lines 1091 1093) no Hoare annotation was computed. [2020-09-21 12:32:56,803 INFO L268 CegarLoopResult]: For program point L959(lines 959 961) no Hoare annotation was computed. [2020-09-21 12:32:56,803 INFO L268 CegarLoopResult]: For program point L827(lines 827 838) no Hoare annotation was computed. [2020-09-21 12:32:56,803 INFO L268 CegarLoopResult]: For program point L761(lines 761 776) no Hoare annotation was computed. [2020-09-21 12:32:56,803 INFO L268 CegarLoopResult]: For program point L431(lines 431 433) no Hoare annotation was computed. [2020-09-21 12:32:56,803 INFO L268 CegarLoopResult]: For program point L299(lines 299 301) no Hoare annotation was computed. [2020-09-21 12:32:56,803 INFO L268 CegarLoopResult]: For program point L167(lines 167 178) no Hoare annotation was computed. [2020-09-21 12:32:56,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:32:56 BoogieIcfgContainer [2020-09-21 12:32:56,859 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 12:32:56,863 INFO L168 Benchmark]: Toolchain (without parser) took 15803.22 ms. Allocated memory was 138.9 MB in the beginning and 444.6 MB in the end (delta: 305.7 MB). Free memory was 92.5 MB in the beginning and 342.6 MB in the end (delta: -250.1 MB). Peak memory consumption was 311.9 MB. Max. memory is 7.1 GB. [2020-09-21 12:32:56,864 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 12:32:56,867 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1684.70 ms. Allocated memory was 138.9 MB in the beginning and 230.2 MB in the end (delta: 91.2 MB). Free memory was 91.8 MB in the beginning and 113.8 MB in the end (delta: -22.0 MB). Peak memory consumption was 77.5 MB. Max. memory is 7.1 GB. [2020-09-21 12:32:56,868 INFO L168 Benchmark]: Boogie Preprocessor took 234.49 ms. Allocated memory is still 230.2 MB. Free memory was 113.8 MB in the beginning and 99.4 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2020-09-21 12:32:56,870 INFO L168 Benchmark]: RCFGBuilder took 1828.73 ms. Allocated memory was 230.2 MB in the beginning and 265.8 MB in the end (delta: 35.7 MB). Free memory was 99.4 MB in the beginning and 167.4 MB in the end (delta: -68.0 MB). Peak memory consumption was 56.0 MB. Max. memory is 7.1 GB. [2020-09-21 12:32:56,872 INFO L168 Benchmark]: TraceAbstraction took 12043.85 ms. Allocated memory was 265.8 MB in the beginning and 444.6 MB in the end (delta: 178.8 MB). Free memory was 165.2 MB in the beginning and 342.6 MB in the end (delta: -177.3 MB). Peak memory consumption was 257.8 MB. Max. memory is 7.1 GB. [2020-09-21 12:32:56,879 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1684.70 ms. Allocated memory was 138.9 MB in the beginning and 230.2 MB in the end (delta: 91.2 MB). Free memory was 91.8 MB in the beginning and 113.8 MB in the end (delta: -22.0 MB). Peak memory consumption was 77.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 234.49 ms. Allocated memory is still 230.2 MB. Free memory was 113.8 MB in the beginning and 99.4 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1828.73 ms. Allocated memory was 230.2 MB in the beginning and 265.8 MB in the end (delta: 35.7 MB). Free memory was 99.4 MB in the beginning and 167.4 MB in the end (delta: -68.0 MB). Peak memory consumption was 56.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12043.85 ms. Allocated memory was 265.8 MB in the beginning and 444.6 MB in the end (delta: 178.8 MB). Free memory was 165.2 MB in the beginning and 342.6 MB in the end (delta: -177.3 MB). Peak memory consumption was 257.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1254]: 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: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((2 <= q && this_m_conn == 0) && 1 <= this_m_delta) && this_m_conn_data_listener == 0) && q <= 2) || ((q == 0 && 1 <= this_m_delta) && this_m_conn_data_listener == 0)) || ((((1 <= this_m_conn_data_listener && 3 <= q) && 1 <= this_m_delta) && 1 <= this_m_conn) && q <= 3)) || (((4 <= q && 1 <= this_m_delta) && 1 <= this_m_conn) && this_m_conn_data_listener == 0) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((2 <= q && this_m_conn == 0) && 1 <= this_m_delta) && this_m_conn_data_listener == 0) && q <= 2) || (((q == 0 && this_m_conn == 0) && 1 <= this_m_delta) && this_m_conn_data_listener == 0)) || (((4 <= q && 1 <= this_m_delta) && 1 <= this_m_conn) && this_m_conn_data_listener == 0)) || ((((1 <= this_m_conn_data_listener && 3 <= q) && 1 <= this_m_delta) && 1 <= this_m_conn) && q <= 3) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 242 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.2s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4099 SDtfs, 6745 SDslu, 80 SDs, 0 SdLazy, 2264 SolverSat, 545 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=424occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 38 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 15 NumberOfFragments, 147 HoareAnnotationTreeSize, 7 FomulaSimplifications, 63 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 279 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 337 NumberOfCodeBlocks, 337 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 325 ConstructedInterpolants, 0 QuantifiedInterpolants, 23682 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 53/53 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...