/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/array-programs/partial_mod_count_5.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 04:06:50,866 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 04:06:50,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 04:06:50,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 04:06:50,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 04:06:50,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 04:06:50,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 04:06:50,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 04:06:50,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 04:06:50,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 04:06:50,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 04:06:50,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 04:06:50,947 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 04:06:50,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 04:06:50,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 04:06:50,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 04:06:50,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 04:06:50,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 04:06:50,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 04:06:50,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 04:06:50,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 04:06:50,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 04:06:50,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 04:06:50,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 04:06:50,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 04:06:50,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 04:06:50,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 04:06:50,991 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 04:06:50,992 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 04:06:50,993 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 04:06:50,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 04:06:50,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 04:06:50,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 04:06:50,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 04:06:50,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 04:06:50,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 04:06:50,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 04:06:50,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 04:06:50,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 04:06:51,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 04:06:51,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 04:06:51,023 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 04:06:51,081 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 04:06:51,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 04:06:51,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 04:06:51,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 04:06:51,085 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 04:06:51,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 04:06:51,086 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 04:06:51,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 04:06:51,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 04:06:51,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 04:06:51,087 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 04:06:51,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 04:06:51,088 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 04:06:51,088 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 04:06:51,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 04:06:51,088 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 04:06:51,089 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 04:06:51,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 04:06:51,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 04:06:51,089 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 04:06:51,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 04:06:51,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:06:51,090 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 04:06:51,090 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 04:06:51,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 04:06:51,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 04:06:51,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 04:06:51,091 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 04:06:51,091 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 04:06:51,091 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 04:06:51,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 04:06:51,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 04:06:51,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 04:06:51,545 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 04:06:51,545 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 04:06:51,546 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-programs/partial_mod_count_5.c [2020-10-29 04:06:51,627 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/265f3b5f1/52069562f1164b0e84fc20bba11bb73a/FLAG597f0a281 [2020-10-29 04:06:52,178 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 04:06:52,179 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-programs/partial_mod_count_5.c [2020-10-29 04:06:52,186 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/265f3b5f1/52069562f1164b0e84fc20bba11bb73a/FLAG597f0a281 [2020-10-29 04:06:52,542 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/265f3b5f1/52069562f1164b0e84fc20bba11bb73a [2020-10-29 04:06:52,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 04:06:52,551 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 04:06:52,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 04:06:52,553 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 04:06:52,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 04:06:52,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:06:52" (1/1) ... [2020-10-29 04:06:52,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f7f0b48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:06:52, skipping insertion in model container [2020-10-29 04:06:52,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:06:52" (1/1) ... [2020-10-29 04:06:52,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 04:06:52,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 04:06:52,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:06:52,802 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 04:06:52,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:06:52,857 INFO L208 MainTranslator]: Completed translation [2020-10-29 04:06:52,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:06:52 WrapperNode [2020-10-29 04:06:52,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 04:06:52,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 04:06:52,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 04:06:52,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 04:06:52,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:06:52" (1/1) ... [2020-10-29 04:06:52,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:06:52" (1/1) ... [2020-10-29 04:06:52,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:06:52" (1/1) ... [2020-10-29 04:06:52,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:06:52" (1/1) ... [2020-10-29 04:06:52,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:06:52" (1/1) ... [2020-10-29 04:06:52,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:06:52" (1/1) ... [2020-10-29 04:06:52,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:06:52" (1/1) ... [2020-10-29 04:06:52,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 04:06:52,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 04:06:52,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 04:06:52,953 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 04:06:52,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:06:52" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:06:53,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 04:06:53,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 04:06:53,088 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 04:06:53,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 04:06:53,089 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 04:06:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 04:06:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 04:06:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 04:06:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 04:06:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 04:06:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 04:06:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 04:06:53,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 04:06:53,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 04:06:53,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 04:06:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 04:06:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 04:06:53,642 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 04:06:53,642 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-29 04:06:53,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:06:53 BoogieIcfgContainer [2020-10-29 04:06:53,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 04:06:53,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 04:06:53,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 04:06:53,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 04:06:53,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:06:52" (1/3) ... [2020-10-29 04:06:53,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e8a619d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:06:53, skipping insertion in model container [2020-10-29 04:06:53,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:06:52" (2/3) ... [2020-10-29 04:06:53,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e8a619d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:06:53, skipping insertion in model container [2020-10-29 04:06:53,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:06:53" (3/3) ... [2020-10-29 04:06:53,659 INFO L111 eAbstractionObserver]: Analyzing ICFG partial_mod_count_5.c [2020-10-29 04:06:53,672 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 04:06:53,678 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 04:06:53,692 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 04:06:53,730 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 04:06:53,731 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 04:06:53,731 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 04:06:53,731 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 04:06:53,731 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 04:06:53,731 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 04:06:53,732 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 04:06:53,732 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 04:06:53,754 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-10-29 04:06:53,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-29 04:06:53,764 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:06:53,766 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:06:53,767 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:06:53,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:06:53,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1115320526, now seen corresponding path program 1 times [2020-10-29 04:06:53,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:06:53,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440623611] [2020-10-29 04:06:53,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:06:53,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:06:53,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:06:54,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:06:54,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:06:54,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 04:06:54,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:06:54,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 690 [2020-10-29 04:06:54,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:06:54,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:06:54,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:06:54,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 04:06:54,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 04:06:54,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 04:06:54,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:06:54,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:06:54,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:06:54,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:06:54,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:06:54,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:06:54,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 04:06:54,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:06:54,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:06:54,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:06:54,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:06:54,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 04:06:54,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:06:54,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:06:54,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440623611] [2020-10-29 04:06:54,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:06:54,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 04:06:54,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619924904] [2020-10-29 04:06:54,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 04:06:54,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:06:55,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 04:06:55,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:06:55,015 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 8 states. [2020-10-29 04:06:55,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:06:55,372 INFO L93 Difference]: Finished difference Result 64 states and 85 transitions. [2020-10-29 04:06:55,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 04:06:55,374 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-10-29 04:06:55,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:06:55,382 INFO L225 Difference]: With dead ends: 64 [2020-10-29 04:06:55,382 INFO L226 Difference]: Without dead ends: 33 [2020-10-29 04:06:55,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-29 04:06:55,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-29 04:06:55,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-29 04:06:55,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-29 04:06:55,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2020-10-29 04:06:55,433 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 15 [2020-10-29 04:06:55,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:06:55,433 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2020-10-29 04:06:55,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 04:06:55,434 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2020-10-29 04:06:55,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-29 04:06:55,435 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:06:55,436 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:06:55,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 04:06:55,436 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:06:55,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:06:55,437 INFO L82 PathProgramCache]: Analyzing trace with hash -278712185, now seen corresponding path program 1 times [2020-10-29 04:06:55,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:06:55,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851273922] [2020-10-29 04:06:55,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:06:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:06:55,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:06:55,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:06:55,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:06:55,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:06:55,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:06:56,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:06:56,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-29 04:06:56,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 04:06:56,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 962 [2020-10-29 04:06:56,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:06:56,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:06:56,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 04:06:56,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 04:06:56,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 04:06:56,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:06:56,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:06:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:06:56,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:06:56,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:06:56,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:06:56,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:06:56,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 04:06:56,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:06:56,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:06:56,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:06:56,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:06:56,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 04:06:56,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:06:56,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-29 04:06:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:06:56,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:06:56,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:06:56,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:06:56,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:06:56,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:06:56,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:06:56,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:06:56,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:06:56,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:06:56,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:06:56,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:06:56,733 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:06:56,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1851273922] [2020-10-29 04:06:56,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:06:56,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-29 04:06:56,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204525890] [2020-10-29 04:06:56,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 04:06:56,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:06:56,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 04:06:56,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-29 04:06:56,737 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand 9 states. [2020-10-29 04:06:57,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:06:57,052 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2020-10-29 04:06:57,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 04:06:57,052 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-29 04:06:57,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:06:57,054 INFO L225 Difference]: With dead ends: 44 [2020-10-29 04:06:57,054 INFO L226 Difference]: Without dead ends: 41 [2020-10-29 04:06:57,055 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-29 04:06:57,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-29 04:06:57,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-29 04:06:57,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-29 04:06:57,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2020-10-29 04:06:57,066 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 23 [2020-10-29 04:06:57,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:06:57,066 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2020-10-29 04:06:57,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 04:06:57,067 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2020-10-29 04:06:57,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-29 04:06:57,068 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:06:57,068 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:06:57,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 04:06:57,069 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:06:57,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:06:57,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1340786969, now seen corresponding path program 2 times [2020-10-29 04:06:57,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:06:57,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1774781011] [2020-10-29 04:06:57,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:06:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:06:57,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:06:57,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:06:57,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:06:57,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:06:57,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:06:57,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:06:58,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:00,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:00,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-29 04:07:00,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 04:07:00,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3911 [2020-10-29 04:07:00,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:00,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:00,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 04:07:00,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 04:07:00,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-29 04:07:00,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:01,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:01,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:01,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:01,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:01,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:01,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:01,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 04:07:01,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:01,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:01,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:01,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:01,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 04:07:01,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:01,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-29 04:07:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:01,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:01,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:01,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:01,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:01,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:07:01,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:01,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:01,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:01,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:01,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:01,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:01,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 04:07:01,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:01,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:01,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:01,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:01,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:01,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:07:01,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:01,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:01,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:01,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:01,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:01,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:01,409 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 04:07:01,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1774781011] [2020-10-29 04:07:01,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:07:01,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 04:07:01,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128004422] [2020-10-29 04:07:01,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 04:07:01,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:01,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 04:07:01,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-29 04:07:01,412 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand 10 states. [2020-10-29 04:07:01,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:01,792 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2020-10-29 04:07:01,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 04:07:01,793 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2020-10-29 04:07:01,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:01,794 INFO L225 Difference]: With dead ends: 52 [2020-10-29 04:07:01,794 INFO L226 Difference]: Without dead ends: 49 [2020-10-29 04:07:01,795 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-10-29 04:07:01,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-29 04:07:01,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-10-29 04:07:01,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-29 04:07:01,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2020-10-29 04:07:01,806 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 31 [2020-10-29 04:07:01,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:01,806 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2020-10-29 04:07:01,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 04:07:01,807 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2020-10-29 04:07:01,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-29 04:07:01,808 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:01,808 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:07:01,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 04:07:01,808 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:01,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:01,809 INFO L82 PathProgramCache]: Analyzing trace with hash -754262713, now seen corresponding path program 3 times [2020-10-29 04:07:01,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:01,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1903837068] [2020-10-29 04:07:01,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:01,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:01,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:01,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:01,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:01,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:02,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:02,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:03,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:06,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:06,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-29 04:07:06,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 04:07:06,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-29 04:07:06,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:06,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:06,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:07:06,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 04:07:06,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 04:07:06,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:06,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:06,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:06,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:06,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:06,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:06,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:07:06,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:06,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:06,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:06,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:06,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:06,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:06,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-29 04:07:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:06,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:06,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:06,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:06,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:06,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:07:06,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:06,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:06,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:06,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:06,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:06,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:06,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 04:07:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:06,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:06,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:06,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:06,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:06,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:07:06,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:06,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:06,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:06,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:06,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:06,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:06,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 04:07:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:06,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:06,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:06,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:06,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:06,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:07:06,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:06,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:06,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:06,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:07:06,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:06,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:06,993 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-29 04:07:06,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1903837068] [2020-10-29 04:07:06,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:07:06,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 04:07:06,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480785574] [2020-10-29 04:07:06,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 04:07:06,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:06,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 04:07:06,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:07:06,996 INFO L87 Difference]: Start difference. First operand 49 states and 57 transitions. Second operand 8 states. [2020-10-29 04:07:07,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:07,187 INFO L93 Difference]: Finished difference Result 106 states and 128 transitions. [2020-10-29 04:07:07,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 04:07:07,191 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2020-10-29 04:07:07,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:07,193 INFO L225 Difference]: With dead ends: 106 [2020-10-29 04:07:07,194 INFO L226 Difference]: Without dead ends: 58 [2020-10-29 04:07:07,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-29 04:07:07,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-29 04:07:07,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 51. [2020-10-29 04:07:07,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-29 04:07:07,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2020-10-29 04:07:07,208 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 39 [2020-10-29 04:07:07,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:07,209 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2020-10-29 04:07:07,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 04:07:07,209 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2020-10-29 04:07:07,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-29 04:07:07,210 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:07,210 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:07:07,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 04:07:07,211 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:07,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:07,211 INFO L82 PathProgramCache]: Analyzing trace with hash -544069207, now seen corresponding path program 1 times [2020-10-29 04:07:07,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:07,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401441405] [2020-10-29 04:07:07,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:07,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:07,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:07,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:07,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:07,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:08,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:08,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:08,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:08,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:08,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:08,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:10,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:12,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:12,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-29 04:07:12,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-29 04:07:12,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 04:07:12,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:12,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:12,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 04:07:12,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 04:07:12,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-29 04:07:12,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:12,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:12,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:12,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:12,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:12,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:12,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:07:12,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:12,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:12,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:12,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:12,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:12,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:12,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 04:07:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:12,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:12,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:12,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:12,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:12,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:07:12,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:12,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:12,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:12,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:12,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:12,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:12,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 04:07:12,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:12,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:12,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:12,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:12,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:12,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:07:12,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:12,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:12,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:12,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:12,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:12,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:12,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 04:07:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:12,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:12,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:12,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:12,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:12,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:07:12,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:12,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:12,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:12,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:07:12,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:12,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:12,379 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 25 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-29 04:07:12,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401441405] [2020-10-29 04:07:12,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:07:12,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-29 04:07:12,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004760457] [2020-10-29 04:07:12,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 04:07:12,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:12,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 04:07:12,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-29 04:07:12,383 INFO L87 Difference]: Start difference. First operand 51 states and 59 transitions. Second operand 9 states. [2020-10-29 04:07:12,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:12,680 INFO L93 Difference]: Finished difference Result 130 states and 159 transitions. [2020-10-29 04:07:12,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 04:07:12,685 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2020-10-29 04:07:12,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:12,687 INFO L225 Difference]: With dead ends: 130 [2020-10-29 04:07:12,687 INFO L226 Difference]: Without dead ends: 71 [2020-10-29 04:07:12,688 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-29 04:07:12,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-29 04:07:12,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 54. [2020-10-29 04:07:12,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-29 04:07:12,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2020-10-29 04:07:12,707 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 42 [2020-10-29 04:07:12,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:12,708 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2020-10-29 04:07:12,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 04:07:12,708 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2020-10-29 04:07:12,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-29 04:07:12,714 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:12,714 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:07:12,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 04:07:12,715 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:12,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:12,715 INFO L82 PathProgramCache]: Analyzing trace with hash -731649529, now seen corresponding path program 2 times [2020-10-29 04:07:12,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:12,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [165575680] [2020-10-29 04:07:12,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:12,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:12,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:12,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:12,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:12,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:13,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:13,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:13,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:17,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:17,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-29 04:07:17,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 04:07:17,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 04:07:17,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:17,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:17,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 04:07:17,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 04:07:17,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 04:07:17,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:17,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:17,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:17,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:17,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:17,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:17,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:17,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:07:17,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:17,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:17,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:17,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:17,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:17,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 04:07:17,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 04:07:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:17,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:17,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:17,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:17,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:17,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:07:17,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 04:07:17,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:17,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:17,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:17,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:17,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:17,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:17,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 04:07:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:17,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:17,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:17,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:17,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:17,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:07:17,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:17,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:17,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:07:17,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 04:07:17,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:17,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:17,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 04:07:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:17,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:18,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:18,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:18,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:18,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:07:18,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:18,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:18,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:18,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:07:18,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:18,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:18,013 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-29 04:07:18,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [165575680] [2020-10-29 04:07:18,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:07:18,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 04:07:18,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775172218] [2020-10-29 04:07:18,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 04:07:18,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:18,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 04:07:18,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-29 04:07:18,016 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand 11 states. [2020-10-29 04:07:18,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:18,448 INFO L93 Difference]: Finished difference Result 102 states and 121 transitions. [2020-10-29 04:07:18,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 04:07:18,449 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 45 [2020-10-29 04:07:18,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:18,452 INFO L225 Difference]: With dead ends: 102 [2020-10-29 04:07:18,452 INFO L226 Difference]: Without dead ends: 58 [2020-10-29 04:07:18,453 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2020-10-29 04:07:18,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-29 04:07:18,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2020-10-29 04:07:18,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-29 04:07:18,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2020-10-29 04:07:18,462 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 64 transitions. Word has length 45 [2020-10-29 04:07:18,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:18,463 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 64 transitions. [2020-10-29 04:07:18,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 04:07:18,463 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 64 transitions. [2020-10-29 04:07:18,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-29 04:07:18,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:18,464 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:07:18,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 04:07:18,464 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:18,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:18,465 INFO L82 PathProgramCache]: Analyzing trace with hash -340564633, now seen corresponding path program 1 times [2020-10-29 04:07:18,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:18,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1925697239] [2020-10-29 04:07:18,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:18,477 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-29 04:07:18,477 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-29 04:07:18,477 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 04:07:18,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 04:07:18,504 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-29 04:07:18,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:07:18 BoogieIcfgContainer [2020-10-29 04:07:18,505 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 04:07:18,507 INFO L168 Benchmark]: Toolchain (without parser) took 25959.56 ms. Allocated memory was 155.2 MB in the beginning and 421.5 MB in the end (delta: 266.3 MB). Free memory was 113.1 MB in the beginning and 234.4 MB in the end (delta: -121.3 MB). Peak memory consumption was 145.9 MB. Max. memory is 8.0 GB. [2020-10-29 04:07:18,508 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 155.2 MB. Free memory is still 129.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 04:07:18,509 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.00 ms. Allocated memory is still 155.2 MB. Free memory was 112.5 MB in the beginning and 102.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-29 04:07:18,510 INFO L168 Benchmark]: Boogie Preprocessor took 90.41 ms. Allocated memory is still 155.2 MB. Free memory was 102.5 MB in the beginning and 138.4 MB in the end (delta: -35.9 MB). Peak memory consumption was 7.1 MB. Max. memory is 8.0 GB. [2020-10-29 04:07:18,510 INFO L168 Benchmark]: RCFGBuilder took 692.25 ms. Allocated memory is still 155.2 MB. Free memory was 138.4 MB in the beginning and 125.2 MB in the end (delta: 13.2 MB). Peak memory consumption was 14.1 MB. Max. memory is 8.0 GB. [2020-10-29 04:07:18,511 INFO L168 Benchmark]: TraceAbstraction took 24855.07 ms. Allocated memory was 155.2 MB in the beginning and 421.5 MB in the end (delta: 266.3 MB). Free memory was 124.8 MB in the beginning and 234.4 MB in the end (delta: -109.6 MB). Peak memory consumption was 157.2 MB. Max. memory is 8.0 GB. [2020-10-29 04:07:18,514 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 155.2 MB. Free memory is still 129.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 307.00 ms. Allocated memory is still 155.2 MB. Free memory was 112.5 MB in the beginning and 102.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 90.41 ms. Allocated memory is still 155.2 MB. Free memory was 102.5 MB in the beginning and 138.4 MB in the end (delta: -35.9 MB). Peak memory consumption was 7.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 692.25 ms. Allocated memory is still 155.2 MB. Free memory was 138.4 MB in the beginning and 125.2 MB in the end (delta: 13.2 MB). Peak memory consumption was 14.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 24855.07 ms. Allocated memory was 155.2 MB in the beginning and 421.5 MB in the end (delta: 266.3 MB). Free memory was 124.8 MB in the beginning and 234.4 MB in the end (delta: -109.6 MB). Peak memory consumption was 157.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L6] int N = 1000000; [L8] int i,j=0,a[N]; [L9] unsigned int R=5; [L10] i=0 [L10] COND TRUE iN/2) [L10] i++ [L10] COND TRUE iN/2) [L10] i++ [L10] COND TRUE iN/2 [L13] a[i]=i%R [L10] i++ [L10] COND FALSE !(i