/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:32:13,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:32:13,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:32:13,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:32:13,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:32:13,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:32:13,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:32:13,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:32:13,589 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:32:13,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:32:13,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:32:13,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:32:13,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:32:13,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:32:13,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:32:13,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:32:13,603 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:32:13,604 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:32:13,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:32:13,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:32:13,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:32:13,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:32:13,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:32:13,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:32:13,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:32:13,630 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:32:13,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:32:13,631 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:32:13,632 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:32:13,636 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:32:13,636 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:32:13,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:32:13,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:32:13,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:32:13,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:32:13,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:32:13,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:32:13,643 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:32:13,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:32:13,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:32:13,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:32:13,647 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 [2020-09-25 05:32:13,692 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:32:13,692 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:32:13,694 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:32:13,694 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:32:13,694 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:32:13,695 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:32:13,695 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:32:13,695 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:32:13,695 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:32:13,696 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:32:13,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:32:13,697 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:32:13,697 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:32:13,697 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:32:13,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:32:13,698 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:32:13,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:32:13,698 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:32:13,698 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:32:13,699 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:32:13,699 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:32:13,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:32:13,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:32:13,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:32:13,700 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:32:13,700 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:32:13,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:32:13,700 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:32:13,700 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:32:13,701 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:32:14,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:32:14,184 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:32:14,189 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:32:14,191 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:32:14,192 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:32:14,193 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-01-1.i [2020-09-25 05:32:14,278 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2faedf14e/4ffc31f6059a46a98f75355c0eba99c5/FLAG178fb242f [2020-09-25 05:32:14,894 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:32:14,895 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-01-1.i [2020-09-25 05:32:14,912 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2faedf14e/4ffc31f6059a46a98f75355c0eba99c5/FLAG178fb242f [2020-09-25 05:32:15,186 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2faedf14e/4ffc31f6059a46a98f75355c0eba99c5 [2020-09-25 05:32:15,198 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:32:15,204 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:32:15,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:32:15,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:32:15,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:32:15,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:32:15" (1/1) ... [2020-09-25 05:32:15,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@333f50dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:15, skipping insertion in model container [2020-09-25 05:32:15,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:32:15" (1/1) ... [2020-09-25 05:32:15,229 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:32:15,307 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:32:15,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:32:15,797 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:32:15,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:32:15,903 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:32:15,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:15 WrapperNode [2020-09-25 05:32:15,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:32:15,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:32:15,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:32:15,905 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:32:15,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:15" (1/1) ... [2020-09-25 05:32:15,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:15" (1/1) ... [2020-09-25 05:32:15,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:15" (1/1) ... [2020-09-25 05:32:15,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:15" (1/1) ... [2020-09-25 05:32:15,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:15" (1/1) ... [2020-09-25 05:32:15,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:15" (1/1) ... [2020-09-25 05:32:15,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:15" (1/1) ... [2020-09-25 05:32:15,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:32:15,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:32:15,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:32:15,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:32:15,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:15" (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 [2020-09-25 05:32:16,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:32:16,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:32:16,063 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:32:16,063 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 05:32:16,063 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 05:32:16,063 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 05:32:16,064 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 05:32:16,064 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 05:32:16,064 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 05:32:16,064 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 05:32:16,064 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 05:32:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 05:32:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 05:32:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 05:32:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 05:32:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 05:32:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 05:32:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 05:32:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 05:32:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 05:32:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 05:32:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 05:32:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 05:32:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 05:32:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 05:32:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 05:32:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 05:32:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 05:32:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 05:32:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 05:32:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 05:32:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 05:32:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 05:32:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 05:32:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 05:32:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 05:32:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 05:32:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 05:32:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 05:32:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 05:32:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 05:32:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 05:32:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 05:32:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 05:32:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 05:32:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 05:32:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 05:32:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 05:32:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 05:32:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 05:32:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 05:32:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 05:32:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 05:32:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:32:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 05:32:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 05:32:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:32:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 05:32:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 05:32:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 05:32:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 05:32:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 05:32:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 05:32:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 05:32:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 05:32:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 05:32:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 05:32:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 05:32:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 05:32:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 05:32:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 05:32:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 05:32:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 05:32:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 05:32:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 05:32:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 05:32:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 05:32:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 05:32:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 05:32:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 05:32:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 05:32:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 05:32:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 05:32:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 05:32:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 05:32:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 05:32:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 05:32:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 05:32:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 05:32:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 05:32:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 05:32:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 05:32:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 05:32:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 05:32:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 05:32:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 05:32:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 05:32:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 05:32:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 05:32:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 05:32:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 05:32:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 05:32:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 05:32:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 05:32:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 05:32:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 05:32:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:32:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:32:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:32:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:32:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:32:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:32:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:32:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:32:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:32:16,796 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:32:16,797 INFO L295 CfgBuilder]: Removed 30 assume(true) statements. [2020-09-25 05:32:16,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:32:16 BoogieIcfgContainer [2020-09-25 05:32:16,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:32:16,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:32:16,805 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:32:16,808 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:32:16,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:32:15" (1/3) ... [2020-09-25 05:32:16,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd1cb80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:32:16, skipping insertion in model container [2020-09-25 05:32:16,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:15" (2/3) ... [2020-09-25 05:32:16,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd1cb80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:32:16, skipping insertion in model container [2020-09-25 05:32:16,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:32:16" (3/3) ... [2020-09-25 05:32:16,813 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-01-1.i [2020-09-25 05:32:16,824 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:32:16,835 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-09-25 05:32:16,858 INFO L251 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-09-25 05:32:16,891 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:32:16,892 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:32:16,892 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:32:16,892 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:32:16,892 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:32:16,893 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:32:16,893 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:32:16,893 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:32:16,924 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2020-09-25 05:32:16,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-25 05:32:16,932 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:16,933 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:16,934 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:16,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:16,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1409190174, now seen corresponding path program 1 times [2020-09-25 05:32:16,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:16,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [718080186] [2020-09-25 05:32:16,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:17,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:17,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:17,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 05:32:17,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:17,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-09-25 05:32:17,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:17,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:17,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:32:17,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 05:32:17,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 05:32:17,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:32:17,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:17,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:17,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:17,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:17,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:17,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 05:32:17,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:17,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:17,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:17,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:17,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:17,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:17,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:17,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [718080186] [2020-09-25 05:32:17,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:17,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:32:17,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552362532] [2020-09-25 05:32:17,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:32:17,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:17,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:32:17,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:32:17,595 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 5 states. [2020-09-25 05:32:17,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:17,954 INFO L93 Difference]: Finished difference Result 359 states and 475 transitions. [2020-09-25 05:32:17,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:32:17,956 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-25 05:32:17,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:17,972 INFO L225 Difference]: With dead ends: 359 [2020-09-25 05:32:17,972 INFO L226 Difference]: Without dead ends: 194 [2020-09-25 05:32:17,978 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:32:18,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-09-25 05:32:18,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 164. [2020-09-25 05:32:18,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-09-25 05:32:18,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 173 transitions. [2020-09-25 05:32:18,046 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 173 transitions. Word has length 13 [2020-09-25 05:32:18,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:18,047 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 173 transitions. [2020-09-25 05:32:18,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:32:18,047 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 173 transitions. [2020-09-25 05:32:18,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-25 05:32:18,048 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:18,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:18,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:32:18,049 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:18,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:18,050 INFO L82 PathProgramCache]: Analyzing trace with hash -1469410252, now seen corresponding path program 1 times [2020-09-25 05:32:18,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:18,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [976009886] [2020-09-25 05:32:18,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:18,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:18,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:18,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:18,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 05:32:18,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:32:18,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269 [2020-09-25 05:32:18,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:18,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:18,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:32:18,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 05:32:18,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:32:18,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:32:18,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:18,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:18,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:18,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:18,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:18,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 05:32:18,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:18,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:18,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:18,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:18,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:18,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:18,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:18,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [976009886] [2020-09-25 05:32:18,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:18,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:32:18,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128242679] [2020-09-25 05:32:18,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:32:18,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:18,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:32:18,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:32:18,419 INFO L87 Difference]: Start difference. First operand 164 states and 173 transitions. Second operand 4 states. [2020-09-25 05:32:18,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:18,699 INFO L93 Difference]: Finished difference Result 170 states and 179 transitions. [2020-09-25 05:32:18,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:32:18,700 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-09-25 05:32:18,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:18,702 INFO L225 Difference]: With dead ends: 170 [2020-09-25 05:32:18,702 INFO L226 Difference]: Without dead ends: 165 [2020-09-25 05:32:18,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:32:18,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-09-25 05:32:18,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2020-09-25 05:32:18,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-09-25 05:32:18,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 174 transitions. [2020-09-25 05:32:18,735 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 174 transitions. Word has length 25 [2020-09-25 05:32:18,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:18,736 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 174 transitions. [2020-09-25 05:32:18,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:32:18,736 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 174 transitions. [2020-09-25 05:32:18,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-25 05:32:18,738 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:18,738 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:18,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:32:18,739 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:18,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:18,739 INFO L82 PathProgramCache]: Analyzing trace with hash -155961871, now seen corresponding path program 1 times [2020-09-25 05:32:18,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:18,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671920728] [2020-09-25 05:32:18,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:18,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:18,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:19,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:19,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 05:32:19,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:32:19,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-09-25 05:32:19,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:19,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:19,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:32:19,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 05:32:19,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:32:19,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:19,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:19,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:19,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:19,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:19,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:19,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:32:19,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:19,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:19,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:19,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:19,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:19,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:19,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:19,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671920728] [2020-09-25 05:32:19,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:19,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:32:19,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606979695] [2020-09-25 05:32:19,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:32:19,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:19,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:32:19,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:32:19,141 INFO L87 Difference]: Start difference. First operand 165 states and 174 transitions. Second operand 6 states. [2020-09-25 05:32:19,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:19,552 INFO L93 Difference]: Finished difference Result 264 states and 279 transitions. [2020-09-25 05:32:19,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 05:32:19,553 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-09-25 05:32:19,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:19,555 INFO L225 Difference]: With dead ends: 264 [2020-09-25 05:32:19,555 INFO L226 Difference]: Without dead ends: 259 [2020-09-25 05:32:19,556 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:32:19,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-09-25 05:32:19,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 170. [2020-09-25 05:32:19,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-09-25 05:32:19,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 180 transitions. [2020-09-25 05:32:19,570 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 180 transitions. Word has length 27 [2020-09-25 05:32:19,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:19,570 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 180 transitions. [2020-09-25 05:32:19,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:32:19,570 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 180 transitions. [2020-09-25 05:32:19,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 05:32:19,572 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:19,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:19,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:32:19,573 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:19,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:19,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1500955686, now seen corresponding path program 1 times [2020-09-25 05:32:19,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:19,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1789274829] [2020-09-25 05:32:19,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:19,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:19,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:19,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:19,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:20,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:20,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 05:32:20,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:32:20,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 505 [2020-09-25 05:32:20,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:20,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:20,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:32:20,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 05:32:20,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 05:32:20,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:20,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:20,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:20,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:20,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:20,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:20,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:32:20,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:20,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:20,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:20,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:20,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:20,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:20,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:20,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1789274829] [2020-09-25 05:32:20,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:20,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:32:20,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213916038] [2020-09-25 05:32:20,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:32:20,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:20,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:32:20,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:32:20,158 INFO L87 Difference]: Start difference. First operand 170 states and 180 transitions. Second operand 6 states. [2020-09-25 05:32:20,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:20,476 INFO L93 Difference]: Finished difference Result 278 states and 294 transitions. [2020-09-25 05:32:20,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 05:32:20,476 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-09-25 05:32:20,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:20,478 INFO L225 Difference]: With dead ends: 278 [2020-09-25 05:32:20,478 INFO L226 Difference]: Without dead ends: 246 [2020-09-25 05:32:20,479 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:32:20,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-09-25 05:32:20,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 169. [2020-09-25 05:32:20,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-09-25 05:32:20,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 179 transitions. [2020-09-25 05:32:20,491 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 179 transitions. Word has length 33 [2020-09-25 05:32:20,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:20,491 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 179 transitions. [2020-09-25 05:32:20,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:32:20,491 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 179 transitions. [2020-09-25 05:32:20,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 05:32:20,493 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:20,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:20,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:32:20,493 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:20,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:20,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1216115010, now seen corresponding path program 1 times [2020-09-25 05:32:20,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:20,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2101155842] [2020-09-25 05:32:20,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:20,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:20,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:21,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:21,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 05:32:21,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:32:21,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1370 [2020-09-25 05:32:21,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:21,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:21,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:32:21,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-25 05:32:21,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:32:21,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:22,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:22,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:22,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:22,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:22,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:22,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:22,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:32:22,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:22,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:22,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:22,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:22,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:22,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:22,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:22,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2101155842] [2020-09-25 05:32:22,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:22,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 05:32:22,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339863395] [2020-09-25 05:32:22,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 05:32:22,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:22,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 05:32:22,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:32:22,098 INFO L87 Difference]: Start difference. First operand 169 states and 179 transitions. Second operand 8 states. [2020-09-25 05:32:22,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:22,757 INFO L93 Difference]: Finished difference Result 257 states and 272 transitions. [2020-09-25 05:32:22,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 05:32:22,758 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2020-09-25 05:32:22,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:22,760 INFO L225 Difference]: With dead ends: 257 [2020-09-25 05:32:22,760 INFO L226 Difference]: Without dead ends: 252 [2020-09-25 05:32:22,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-09-25 05:32:22,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-09-25 05:32:22,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 158. [2020-09-25 05:32:22,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-09-25 05:32:22,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 167 transitions. [2020-09-25 05:32:22,782 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 167 transitions. Word has length 34 [2020-09-25 05:32:22,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:22,782 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 167 transitions. [2020-09-25 05:32:22,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 05:32:22,782 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 167 transitions. [2020-09-25 05:32:22,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 05:32:22,786 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:22,786 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:22,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:32:22,787 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:22,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:22,790 INFO L82 PathProgramCache]: Analyzing trace with hash 125861883, now seen corresponding path program 1 times [2020-09-25 05:32:22,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:22,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [56159988] [2020-09-25 05:32:22,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:22,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:22,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:22,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:22,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:23,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:23,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:25,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:25,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 05:32:25,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:32:25,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2376 [2020-09-25 05:32:25,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:25,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:25,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:32:25,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 05:32:25,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 05:32:25,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:25,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:25,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:25,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:25,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:25,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:25,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:32:25,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:25,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:25,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:25,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:25,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:25,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:25,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:25,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [56159988] [2020-09-25 05:32:25,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:25,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:32:25,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764292412] [2020-09-25 05:32:25,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:32:25,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:25,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:32:25,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:32:25,289 INFO L87 Difference]: Start difference. First operand 158 states and 167 transitions. Second operand 6 states. [2020-09-25 05:32:25,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:25,661 INFO L93 Difference]: Finished difference Result 374 states and 396 transitions. [2020-09-25 05:32:25,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:32:25,661 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2020-09-25 05:32:25,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:25,663 INFO L225 Difference]: With dead ends: 374 [2020-09-25 05:32:25,663 INFO L226 Difference]: Without dead ends: 247 [2020-09-25 05:32:25,665 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:32:25,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2020-09-25 05:32:25,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 161. [2020-09-25 05:32:25,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-09-25 05:32:25,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 170 transitions. [2020-09-25 05:32:25,673 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 170 transitions. Word has length 40 [2020-09-25 05:32:25,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:25,673 INFO L479 AbstractCegarLoop]: Abstraction has 161 states and 170 transitions. [2020-09-25 05:32:25,673 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:32:25,674 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 170 transitions. [2020-09-25 05:32:25,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-25 05:32:25,679 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:25,679 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:25,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 05:32:25,679 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:25,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:25,682 INFO L82 PathProgramCache]: Analyzing trace with hash -2091807586, now seen corresponding path program 1 times [2020-09-25 05:32:25,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:25,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2049347319] [2020-09-25 05:32:25,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:25,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:25,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:25,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:25,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:26,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:26,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 05:32:26,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:32:26,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1156 [2020-09-25 05:32:26,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:26,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:26,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:32:26,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 05:32:26,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 05:32:26,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:26,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:26,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:27,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:27,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:27,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:27,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:32:27,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:27,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:27,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:27,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:27,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:27,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:27,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:27,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2049347319] [2020-09-25 05:32:27,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:27,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 05:32:27,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279818567] [2020-09-25 05:32:27,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 05:32:27,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:27,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 05:32:27,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:32:27,018 INFO L87 Difference]: Start difference. First operand 161 states and 170 transitions. Second operand 10 states. [2020-09-25 05:32:27,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:27,504 INFO L93 Difference]: Finished difference Result 232 states and 245 transitions. [2020-09-25 05:32:27,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 05:32:27,505 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 42 [2020-09-25 05:32:27,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:27,506 INFO L225 Difference]: With dead ends: 232 [2020-09-25 05:32:27,506 INFO L226 Difference]: Without dead ends: 228 [2020-09-25 05:32:27,507 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2020-09-25 05:32:27,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-09-25 05:32:27,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 157. [2020-09-25 05:32:27,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-09-25 05:32:27,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 166 transitions. [2020-09-25 05:32:27,513 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 166 transitions. Word has length 42 [2020-09-25 05:32:27,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:27,514 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 166 transitions. [2020-09-25 05:32:27,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 05:32:27,514 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 166 transitions. [2020-09-25 05:32:27,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 05:32:27,515 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:27,515 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:27,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 05:32:27,516 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:27,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:27,516 INFO L82 PathProgramCache]: Analyzing trace with hash 654436304, now seen corresponding path program 1 times [2020-09-25 05:32:27,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:27,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [273597461] [2020-09-25 05:32:27,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:27,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:27,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:27,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 05:32:27,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:27,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 05:32:27,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:27,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:27,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:32:27,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 05:32:27,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:32:27,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:32:27,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:27,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:27,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:27,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:27,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:27,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:27,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:32:27,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:27,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:27,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:27,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:27,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:27,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:27,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:27,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [273597461] [2020-09-25 05:32:27,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:27,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:32:27,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524974024] [2020-09-25 05:32:27,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:32:27,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:27,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:32:27,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:32:27,634 INFO L87 Difference]: Start difference. First operand 157 states and 166 transitions. Second operand 4 states. [2020-09-25 05:32:27,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:27,904 INFO L93 Difference]: Finished difference Result 199 states and 212 transitions. [2020-09-25 05:32:27,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:32:27,905 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-09-25 05:32:27,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:27,907 INFO L225 Difference]: With dead ends: 199 [2020-09-25 05:32:27,907 INFO L226 Difference]: Without dead ends: 197 [2020-09-25 05:32:27,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:32:27,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-09-25 05:32:27,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 159. [2020-09-25 05:32:27,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-09-25 05:32:27,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 169 transitions. [2020-09-25 05:32:27,916 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 169 transitions. Word has length 43 [2020-09-25 05:32:27,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:27,917 INFO L479 AbstractCegarLoop]: Abstraction has 159 states and 169 transitions. [2020-09-25 05:32:27,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:32:27,917 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 169 transitions. [2020-09-25 05:32:27,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-25 05:32:27,918 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:27,919 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:27,919 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 05:32:27,919 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:27,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:27,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1847672787, now seen corresponding path program 1 times [2020-09-25 05:32:27,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:27,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1700069037] [2020-09-25 05:32:27,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:27,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:27,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:28,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:28,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:28,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:28,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:28,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-25 05:32:28,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:32:28,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 770 [2020-09-25 05:32:28,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:28,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:28,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:32:28,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 05:32:28,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:32:28,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:28,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:28,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:28,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:28,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:28,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:28,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:28,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:32:28,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:28,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:28,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:28,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:28,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:28,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:28,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:28,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1700069037] [2020-09-25 05:32:28,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:28,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:32:28,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618342553] [2020-09-25 05:32:28,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:32:28,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:28,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:32:28,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:32:28,752 INFO L87 Difference]: Start difference. First operand 159 states and 169 transitions. Second operand 4 states. [2020-09-25 05:32:28,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:28,941 INFO L93 Difference]: Finished difference Result 159 states and 169 transitions. [2020-09-25 05:32:28,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:32:28,942 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2020-09-25 05:32:28,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:28,943 INFO L225 Difference]: With dead ends: 159 [2020-09-25 05:32:28,943 INFO L226 Difference]: Without dead ends: 157 [2020-09-25 05:32:28,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:32:28,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-09-25 05:32:28,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2020-09-25 05:32:28,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-09-25 05:32:28,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 167 transitions. [2020-09-25 05:32:28,949 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 167 transitions. Word has length 45 [2020-09-25 05:32:28,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:28,950 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 167 transitions. [2020-09-25 05:32:28,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:32:28,950 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 167 transitions. [2020-09-25 05:32:28,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-09-25 05:32:28,951 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:28,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:28,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 05:32:28,952 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:28,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:28,952 INFO L82 PathProgramCache]: Analyzing trace with hash 11890970, now seen corresponding path program 1 times [2020-09-25 05:32:28,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:28,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1576090750] [2020-09-25 05:32:28,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:28,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:29,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:29,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:29,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:29,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:29,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:30,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:30,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 05:32:30,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:32:30,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1677 [2020-09-25 05:32:30,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:30,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:30,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:32:30,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 05:32:30,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:32:30,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:30,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:30,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:30,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:30,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:30,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:30,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 05:32:30,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:30,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:30,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:30,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:30,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:30,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:30,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:30,803 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1576090750] [2020-09-25 05:32:30,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:30,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 05:32:30,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509305447] [2020-09-25 05:32:30,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:32:30,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:30,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:32:30,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:32:30,805 INFO L87 Difference]: Start difference. First operand 157 states and 167 transitions. Second operand 7 states. [2020-09-25 05:32:31,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:31,384 INFO L93 Difference]: Finished difference Result 346 states and 370 transitions. [2020-09-25 05:32:31,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:32:31,384 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 49 [2020-09-25 05:32:31,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:31,386 INFO L225 Difference]: With dead ends: 346 [2020-09-25 05:32:31,386 INFO L226 Difference]: Without dead ends: 279 [2020-09-25 05:32:31,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-09-25 05:32:31,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-09-25 05:32:31,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 178. [2020-09-25 05:32:31,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-09-25 05:32:31,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 189 transitions. [2020-09-25 05:32:31,397 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 189 transitions. Word has length 49 [2020-09-25 05:32:31,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:31,398 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 189 transitions. [2020-09-25 05:32:31,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:32:31,399 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 189 transitions. [2020-09-25 05:32:31,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 05:32:31,401 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:31,401 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:31,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 05:32:31,402 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:31,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:31,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1643041774, now seen corresponding path program 1 times [2020-09-25 05:32:31,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:31,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [888620644] [2020-09-25 05:32:31,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:31,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:31,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:31,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:32,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:33,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:34,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:34,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 05:32:34,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:32:34,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2904 [2020-09-25 05:32:34,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:34,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:34,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:32:34,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-25 05:32:34,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 05:32:34,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:34,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:34,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:34,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:34,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:34,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:34,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:34,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:32:34,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:34,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:34,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:34,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:34,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:34,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:34,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:34,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [888620644] [2020-09-25 05:32:34,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:34,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 05:32:34,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796141944] [2020-09-25 05:32:34,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 05:32:34,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:34,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 05:32:34,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:32:34,635 INFO L87 Difference]: Start difference. First operand 178 states and 189 transitions. Second operand 10 states. [2020-09-25 05:32:35,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:35,714 INFO L93 Difference]: Finished difference Result 337 states and 360 transitions. [2020-09-25 05:32:35,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 05:32:35,715 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2020-09-25 05:32:35,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:35,717 INFO L225 Difference]: With dead ends: 337 [2020-09-25 05:32:35,717 INFO L226 Difference]: Without dead ends: 334 [2020-09-25 05:32:35,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2020-09-25 05:32:35,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2020-09-25 05:32:35,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 198. [2020-09-25 05:32:35,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-09-25 05:32:35,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 212 transitions. [2020-09-25 05:32:35,729 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 212 transitions. Word has length 54 [2020-09-25 05:32:35,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:35,729 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 212 transitions. [2020-09-25 05:32:35,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 05:32:35,729 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 212 transitions. [2020-09-25 05:32:35,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 05:32:35,730 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:35,730 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:35,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 05:32:35,731 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:35,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:35,731 INFO L82 PathProgramCache]: Analyzing trace with hash 358720869, now seen corresponding path program 1 times [2020-09-25 05:32:35,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:35,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1267097283] [2020-09-25 05:32:35,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:35,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:35,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:35,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:35,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:35,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:36,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:38,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:38,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 05:32:38,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:32:38,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2302 [2020-09-25 05:32:38,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:38,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:38,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:32:38,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 05:32:38,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:32:38,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:38,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:38,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:38,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:38,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:38,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:38,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 05:32:38,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:38,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:38,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:38,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:38,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:38,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:38,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 05:32:38,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1267097283] [2020-09-25 05:32:38,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:38,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:32:38,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572713927] [2020-09-25 05:32:38,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:32:38,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:38,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:32:38,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:32:38,121 INFO L87 Difference]: Start difference. First operand 198 states and 212 transitions. Second operand 4 states. [2020-09-25 05:32:38,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:38,346 INFO L93 Difference]: Finished difference Result 206 states and 220 transitions. [2020-09-25 05:32:38,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:32:38,347 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-09-25 05:32:38,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:38,348 INFO L225 Difference]: With dead ends: 206 [2020-09-25 05:32:38,348 INFO L226 Difference]: Without dead ends: 204 [2020-09-25 05:32:38,349 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:32:38,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-09-25 05:32:38,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 196. [2020-09-25 05:32:38,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-09-25 05:32:38,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 210 transitions. [2020-09-25 05:32:38,357 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 210 transitions. Word has length 54 [2020-09-25 05:32:38,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:38,358 INFO L479 AbstractCegarLoop]: Abstraction has 196 states and 210 transitions. [2020-09-25 05:32:38,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:32:38,358 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 210 transitions. [2020-09-25 05:32:38,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 05:32:38,359 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:38,359 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:38,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 05:32:38,359 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:38,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:38,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1270543956, now seen corresponding path program 1 times [2020-09-25 05:32:38,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:38,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1035204787] [2020-09-25 05:32:38,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:38,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:38,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:38,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:38,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-25 05:32:38,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:32:38,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-25 05:32:38,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:38,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:38,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:32:38,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-25 05:32:38,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:32:38,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:38,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:38,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:38,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:38,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:38,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:38,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:32:38,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:38,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:38,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:38,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:38,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:38,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:38,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:38,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1035204787] [2020-09-25 05:32:38,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:38,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:32:38,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130645673] [2020-09-25 05:32:38,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:32:38,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:38,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:32:38,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:32:38,655 INFO L87 Difference]: Start difference. First operand 196 states and 210 transitions. Second operand 4 states. [2020-09-25 05:32:38,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:38,847 INFO L93 Difference]: Finished difference Result 202 states and 216 transitions. [2020-09-25 05:32:38,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:32:38,848 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2020-09-25 05:32:38,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:38,849 INFO L225 Difference]: With dead ends: 202 [2020-09-25 05:32:38,849 INFO L226 Difference]: Without dead ends: 197 [2020-09-25 05:32:38,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:32:38,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-09-25 05:32:38,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2020-09-25 05:32:38,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-09-25 05:32:38,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 211 transitions. [2020-09-25 05:32:38,862 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 211 transitions. Word has length 56 [2020-09-25 05:32:38,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:38,862 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 211 transitions. [2020-09-25 05:32:38,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:32:38,863 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 211 transitions. [2020-09-25 05:32:38,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 05:32:38,863 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:38,864 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:38,864 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 05:32:38,864 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:38,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:38,864 INFO L82 PathProgramCache]: Analyzing trace with hash 2002844954, now seen corresponding path program 1 times [2020-09-25 05:32:38,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:38,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [877149629] [2020-09-25 05:32:38,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 05:32:38,886 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 05:32:38,886 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 05:32:38,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 05:32:38,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 05:32:38 BoogieIcfgContainer [2020-09-25 05:32:38,933 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 05:32:38,940 INFO L168 Benchmark]: Toolchain (without parser) took 23737.28 ms. Allocated memory was 137.4 MB in the beginning and 443.0 MB in the end (delta: 305.7 MB). Free memory was 98.9 MB in the beginning and 160.8 MB in the end (delta: -61.9 MB). Peak memory consumption was 243.8 MB. Max. memory is 7.1 GB. [2020-09-25 05:32:38,941 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 137.4 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 05:32:38,942 INFO L168 Benchmark]: CACSL2BoogieTranslator took 698.75 ms. Allocated memory was 137.4 MB in the beginning and 199.2 MB in the end (delta: 61.9 MB). Free memory was 98.2 MB in the beginning and 165.5 MB in the end (delta: -67.2 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2020-09-25 05:32:38,943 INFO L168 Benchmark]: Boogie Preprocessor took 82.80 ms. Allocated memory is still 199.2 MB. Free memory was 165.5 MB in the beginning and 162.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2020-09-25 05:32:38,948 INFO L168 Benchmark]: RCFGBuilder took 815.33 ms. Allocated memory is still 199.2 MB. Free memory was 162.0 MB in the beginning and 98.8 MB in the end (delta: 63.2 MB). Peak memory consumption was 63.2 MB. Max. memory is 7.1 GB. [2020-09-25 05:32:38,953 INFO L168 Benchmark]: TraceAbstraction took 22128.95 ms. Allocated memory was 199.2 MB in the beginning and 443.0 MB in the end (delta: 243.8 MB). Free memory was 98.8 MB in the beginning and 160.8 MB in the end (delta: -62.0 MB). Peak memory consumption was 181.8 MB. Max. memory is 7.1 GB. [2020-09-25 05:32:38,957 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 137.4 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 698.75 ms. Allocated memory was 137.4 MB in the beginning and 199.2 MB in the end (delta: 61.9 MB). Free memory was 98.2 MB in the beginning and 165.5 MB in the end (delta: -67.2 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 82.80 ms. Allocated memory is still 199.2 MB. Free memory was 165.5 MB in the beginning and 162.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 815.33 ms. Allocated memory is still 199.2 MB. Free memory was 162.0 MB in the beginning and 98.8 MB in the end (delta: 63.2 MB). Peak memory consumption was 63.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22128.95 ms. Allocated memory was 199.2 MB in the beginning and 443.0 MB in the end (delta: 243.8 MB). Free memory was 98.8 MB in the beginning and 160.8 MB in the end (delta: -62.0 MB). Peak memory consumption was 181.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1029]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L992] SLL* list = malloc(sizeof(SLL)); [L993] list->next = ((void*)0) [L994] list->prev = ((void*)0) [L995] COND FALSE !(!(list != ((void*)0))) [L995] COND FALSE !(__VERIFIER_nondet_int()) [L995] list->inner = malloc(sizeof(SLL)) [L995] EXPR list->inner [L995] list->inner->next = ((void*)0) [L995] EXPR list->inner [L995] list->inner->inner = ((void*)0) [L995] EXPR list->inner [L995] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) [L995] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L997] SLL* end = list; [L1000] COND FALSE !(__VERIFIER_nondet_int()) [L1011] end = ((void*)0) [L1012] end = list [L1015] COND FALSE !(!(((void*)0) != end)) [L1017] COND TRUE ((void*)0) != end [L1019] int len = 0; [L1020] EXPR end->inner [L1020] SLL* inner = end->inner; [L1021] COND TRUE ((void*)0) != inner [L1023] COND TRUE len == 0 [L1024] len = 1 [L1027] COND FALSE !(!(((void*)0) != inner)) [L1028] EXPR inner->inner [L1028] COND FALSE !(!(((void*)0) == inner->inner)) [L1029] EXPR inner->next [L1029] COND TRUE !(((void*)0) != inner->next) [L1029] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 171 locations, 13 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 22.0s, OverallIterations: 14, TraceHistogramMax: 1, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1991 SDtfs, 2443 SDslu, 3948 SDs, 0 SdLazy, 3330 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 730 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 15.6s InterpolantComputationTime, 573 NumberOfCodeBlocks, 573 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 502 ConstructedInterpolants, 0 QuantifiedInterpolants, 161983 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...