/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=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/locks/test_locks_5.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:39:19,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:39:19,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:39:19,864 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:39:19,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:39:19,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:39:19,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:39:19,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:39:19,872 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:39:19,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:39:19,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:39:19,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:39:19,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:39:19,877 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:39:19,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:39:19,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:39:19,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:39:19,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:39:19,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:39:19,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:39:19,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:39:19,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:39:19,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:39:19,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:39:19,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:39:19,897 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:39:19,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:39:19,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:39:19,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:39:19,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:39:19,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:39:19,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:39:19,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:39:19,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:39:19,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:39:19,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:39:19,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:39:19,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:39:19,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:39:19,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:39:19,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:39:19,911 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 06:39:19,940 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:39:19,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:39:19,941 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:39:19,941 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:39:19,942 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:39:19,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:39:19,942 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:39:19,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:39:19,942 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:39:19,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:39:19,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:39:19,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:39:19,943 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:39:19,943 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:39:19,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:39:19,944 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:39:19,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:39:19,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:39:19,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:39:19,945 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:39:19,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:39:19,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:39:19,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:39:19,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:39:19,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:39:19,946 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:39:19,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:39:19,947 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:39:19,947 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:39:19,947 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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;log-additional-information=true; [2020-09-25 06:39:20,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:39:20,425 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:39:20,430 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:39:20,432 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:39:20,432 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:39:20,434 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_5.c [2020-09-25 06:39:20,516 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94d43e92c/83de08e0295844b4b7be3238c92fce8d/FLAGcc2bf9d13 [2020-09-25 06:39:21,082 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:39:21,083 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/locks/test_locks_5.c [2020-09-25 06:39:21,094 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94d43e92c/83de08e0295844b4b7be3238c92fce8d/FLAGcc2bf9d13 [2020-09-25 06:39:21,415 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94d43e92c/83de08e0295844b4b7be3238c92fce8d [2020-09-25 06:39:21,429 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:39:21,436 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:39:21,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:39:21,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:39:21,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:39:21,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:39:21" (1/1) ... [2020-09-25 06:39:21,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1058f97b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:21, skipping insertion in model container [2020-09-25 06:39:21,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:39:21" (1/1) ... [2020-09-25 06:39:21,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:39:21,482 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:39:21,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:39:21,709 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:39:21,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:39:21,752 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:39:21,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:21 WrapperNode [2020-09-25 06:39:21,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:39:21,754 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:39:21,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:39:21,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:39:21,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:21" (1/1) ... [2020-09-25 06:39:21,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:21" (1/1) ... [2020-09-25 06:39:21,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:21" (1/1) ... [2020-09-25 06:39:21,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:21" (1/1) ... [2020-09-25 06:39:21,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:21" (1/1) ... [2020-09-25 06:39:21,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:21" (1/1) ... [2020-09-25 06:39:21,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:21" (1/1) ... [2020-09-25 06:39:21,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:39:21,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:39:21,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:39:21,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:39:21,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:21" (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 06:39:21,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:39:21,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:39:21,951 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:39:21,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:39:21,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:39:21,952 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:39:21,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:39:21,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:39:22,302 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:39:22,303 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 06:39:22,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:39:22 BoogieIcfgContainer [2020-09-25 06:39:22,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:39:22,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:39:22,315 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:39:22,319 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:39:22,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:39:21" (1/3) ... [2020-09-25 06:39:22,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59083f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:39:22, skipping insertion in model container [2020-09-25 06:39:22,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:21" (2/3) ... [2020-09-25 06:39:22,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59083f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:39:22, skipping insertion in model container [2020-09-25 06:39:22,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:39:22" (3/3) ... [2020-09-25 06:39:22,327 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_5.c [2020-09-25 06:39:22,337 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:39:22,347 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:39:22,369 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:39:22,398 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:39:22,398 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:39:22,398 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:39:22,398 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:39:22,399 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:39:22,399 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:39:22,399 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:39:22,399 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:39:22,420 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2020-09-25 06:39:22,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 06:39:22,429 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:22,430 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 06:39:22,430 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:22,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:22,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1222569836, now seen corresponding path program 1 times [2020-09-25 06:39:22,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:22,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [117465894] [2020-09-25 06:39:22,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:22,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:22,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:22,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 06:39:22,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:22,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-09-25 06:39:22,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:22,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:22,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:22,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-25 06:39:22,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:39:22,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:39:22,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:22,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:22,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:22,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:22,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:22,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:39:22,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:22,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:22,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:22,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:22,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:22,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:22,836 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 06:39:22,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [117465894] [2020-09-25 06:39:22,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:22,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:22,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61043895] [2020-09-25 06:39:22,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:22,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:22,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:22,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:22,869 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 3 states. [2020-09-25 06:39:22,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:22,946 INFO L93 Difference]: Finished difference Result 147 states and 198 transitions. [2020-09-25 06:39:22,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:22,948 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2020-09-25 06:39:22,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:22,964 INFO L225 Difference]: With dead ends: 147 [2020-09-25 06:39:22,965 INFO L226 Difference]: Without dead ends: 96 [2020-09-25 06:39:22,969 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:22,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-09-25 06:39:23,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2020-09-25 06:39:23,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-25 06:39:23,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 120 transitions. [2020-09-25 06:39:23,028 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 120 transitions. Word has length 43 [2020-09-25 06:39:23,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:23,029 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 120 transitions. [2020-09-25 06:39:23,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:23,030 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 120 transitions. [2020-09-25 06:39:23,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-25 06:39:23,032 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:23,032 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] [2020-09-25 06:39:23,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:39:23,032 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:23,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:23,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1252462105, now seen corresponding path program 1 times [2020-09-25 06:39:23,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:23,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [198908401] [2020-09-25 06:39:23,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:23,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:23,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:23,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:23,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 06:39:23,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:23,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-25 06:39:23,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:23,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:23,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:23,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 06:39:23,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:39:23,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:23,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:23,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:23,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:23,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:23,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:23,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:23,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:23,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:23,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:23,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:23,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:23,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:23,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:23,248 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 06:39:23,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [198908401] [2020-09-25 06:39:23,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:23,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:23,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337044942] [2020-09-25 06:39:23,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:23,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:23,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:23,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:23,253 INFO L87 Difference]: Start difference. First operand 94 states and 120 transitions. Second operand 3 states. [2020-09-25 06:39:23,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:23,277 INFO L93 Difference]: Finished difference Result 116 states and 148 transitions. [2020-09-25 06:39:23,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:23,278 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2020-09-25 06:39:23,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:23,280 INFO L225 Difference]: With dead ends: 116 [2020-09-25 06:39:23,280 INFO L226 Difference]: Without dead ends: 114 [2020-09-25 06:39:23,281 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:23,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-09-25 06:39:23,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 94. [2020-09-25 06:39:23,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-25 06:39:23,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 119 transitions. [2020-09-25 06:39:23,294 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 119 transitions. Word has length 44 [2020-09-25 06:39:23,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:23,295 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 119 transitions. [2020-09-25 06:39:23,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:23,295 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 119 transitions. [2020-09-25 06:39:23,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-25 06:39:23,297 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:23,297 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] [2020-09-25 06:39:23,297 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:39:23,297 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:23,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:23,298 INFO L82 PathProgramCache]: Analyzing trace with hash 755286414, now seen corresponding path program 1 times [2020-09-25 06:39:23,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:23,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1086077855] [2020-09-25 06:39:23,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:23,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:23,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:23,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 06:39:23,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:23,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 06:39:23,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:23,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:23,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:23,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 06:39:23,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:39:23,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:23,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:23,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:23,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:23,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:23,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:23,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:23,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:23,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:23,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:23,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:23,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:23,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:23,468 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 06:39:23,469 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1086077855] [2020-09-25 06:39:23,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:23,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:23,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116062664] [2020-09-25 06:39:23,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:23,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:23,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:23,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:23,473 INFO L87 Difference]: Start difference. First operand 94 states and 119 transitions. Second operand 3 states. [2020-09-25 06:39:23,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:23,515 INFO L93 Difference]: Finished difference Result 226 states and 299 transitions. [2020-09-25 06:39:23,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:23,516 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2020-09-25 06:39:23,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:23,518 INFO L225 Difference]: With dead ends: 226 [2020-09-25 06:39:23,518 INFO L226 Difference]: Without dead ends: 157 [2020-09-25 06:39:23,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:23,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-09-25 06:39:23,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 155. [2020-09-25 06:39:23,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-09-25 06:39:23,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 200 transitions. [2020-09-25 06:39:23,537 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 200 transitions. Word has length 44 [2020-09-25 06:39:23,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:23,538 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 200 transitions. [2020-09-25 06:39:23,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:23,538 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 200 transitions. [2020-09-25 06:39:23,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-25 06:39:23,540 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:23,541 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 06:39:23,541 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:39:23,541 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:23,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:23,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1863120818, now seen corresponding path program 1 times [2020-09-25 06:39:23,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:23,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1137055484] [2020-09-25 06:39:23,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:23,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:23,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:23,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-25 06:39:23,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:23,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 06:39:23,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:23,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:23,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:23,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-09-25 06:39:23,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:39:23,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:23,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:23,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:23,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:23,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:23,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:23,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:23,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:23,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:23,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:23,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:23,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:23,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:23,643 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 06:39:23,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1137055484] [2020-09-25 06:39:23,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:23,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:23,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408700436] [2020-09-25 06:39:23,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:23,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:23,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:23,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:23,647 INFO L87 Difference]: Start difference. First operand 155 states and 200 transitions. Second operand 3 states. [2020-09-25 06:39:23,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:23,670 INFO L93 Difference]: Finished difference Result 191 states and 246 transitions. [2020-09-25 06:39:23,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:23,671 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-09-25 06:39:23,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:23,673 INFO L225 Difference]: With dead ends: 191 [2020-09-25 06:39:23,673 INFO L226 Difference]: Without dead ends: 189 [2020-09-25 06:39:23,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:23,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-09-25 06:39:23,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 155. [2020-09-25 06:39:23,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-09-25 06:39:23,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 198 transitions. [2020-09-25 06:39:23,689 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 198 transitions. Word has length 45 [2020-09-25 06:39:23,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:23,690 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 198 transitions. [2020-09-25 06:39:23,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:23,690 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 198 transitions. [2020-09-25 06:39:23,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-25 06:39:23,692 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:23,692 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 06:39:23,692 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:39:23,693 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:23,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:23,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1939288392, now seen corresponding path program 1 times [2020-09-25 06:39:23,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:23,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [775030484] [2020-09-25 06:39:23,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:23,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:23,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:23,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-25 06:39:23,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:23,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 06:39:23,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:23,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:23,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:23,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-09-25 06:39:23,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:39:23,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:23,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:23,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:23,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:23,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:23,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:23,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:23,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:23,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:23,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:23,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:23,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:23,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:23,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:23,777 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 06:39:23,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [775030484] [2020-09-25 06:39:23,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:23,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:23,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780511006] [2020-09-25 06:39:23,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:23,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:23,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:23,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:23,780 INFO L87 Difference]: Start difference. First operand 155 states and 198 transitions. Second operand 3 states. [2020-09-25 06:39:23,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:23,802 INFO L93 Difference]: Finished difference Result 403 states and 528 transitions. [2020-09-25 06:39:23,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:23,803 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-09-25 06:39:23,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:23,805 INFO L225 Difference]: With dead ends: 403 [2020-09-25 06:39:23,805 INFO L226 Difference]: Without dead ends: 273 [2020-09-25 06:39:23,807 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:23,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-09-25 06:39:23,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 271. [2020-09-25 06:39:23,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-09-25 06:39:23,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 346 transitions. [2020-09-25 06:39:23,829 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 346 transitions. Word has length 45 [2020-09-25 06:39:23,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:23,830 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 346 transitions. [2020-09-25 06:39:23,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:23,830 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 346 transitions. [2020-09-25 06:39:23,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-25 06:39:23,833 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:23,833 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] [2020-09-25 06:39:23,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:39:23,833 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:23,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:23,834 INFO L82 PathProgramCache]: Analyzing trace with hash -11355582, now seen corresponding path program 1 times [2020-09-25 06:39:23,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:23,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1860008392] [2020-09-25 06:39:23,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:23,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:23,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:23,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 06:39:23,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:23,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 06:39:23,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:23,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:23,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:23,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-25 06:39:23,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:39:23,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:23,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:23,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:23,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:23,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:23,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:23,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:23,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:23,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:23,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:23,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:23,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:23,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:23,920 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 06:39:23,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1860008392] [2020-09-25 06:39:23,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:23,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:23,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836053760] [2020-09-25 06:39:23,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:23,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:23,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:23,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:23,923 INFO L87 Difference]: Start difference. First operand 271 states and 346 transitions. Second operand 3 states. [2020-09-25 06:39:23,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:23,949 INFO L93 Difference]: Finished difference Result 739 states and 956 transitions. [2020-09-25 06:39:23,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:23,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-25 06:39:23,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:23,953 INFO L225 Difference]: With dead ends: 739 [2020-09-25 06:39:23,953 INFO L226 Difference]: Without dead ends: 493 [2020-09-25 06:39:23,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:23,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2020-09-25 06:39:23,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 491. [2020-09-25 06:39:23,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-09-25 06:39:23,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 618 transitions. [2020-09-25 06:39:23,981 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 618 transitions. Word has length 46 [2020-09-25 06:39:23,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:23,981 INFO L479 AbstractCegarLoop]: Abstraction has 491 states and 618 transitions. [2020-09-25 06:39:23,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:23,981 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 618 transitions. [2020-09-25 06:39:23,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-25 06:39:23,984 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:23,984 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] [2020-09-25 06:39:23,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:39:23,985 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:23,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:23,985 INFO L82 PathProgramCache]: Analyzing trace with hash 338056749, now seen corresponding path program 1 times [2020-09-25 06:39:23,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:23,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [81845834] [2020-09-25 06:39:23,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:23,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:24,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:24,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:24,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 06:39:24,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:24,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 06:39:24,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:24,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:24,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:24,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-25 06:39:24,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:39:24,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:24,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:24,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:24,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:24,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:24,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:24,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:39:24,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:24,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:24,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:24,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:24,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:24,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:24,086 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 06:39:24,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [81845834] [2020-09-25 06:39:24,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:24,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:24,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522260512] [2020-09-25 06:39:24,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:24,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:24,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:24,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:24,090 INFO L87 Difference]: Start difference. First operand 491 states and 618 transitions. Second operand 3 states. [2020-09-25 06:39:24,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:24,114 INFO L93 Difference]: Finished difference Result 599 states and 748 transitions. [2020-09-25 06:39:24,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:24,115 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-25 06:39:24,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:24,119 INFO L225 Difference]: With dead ends: 599 [2020-09-25 06:39:24,119 INFO L226 Difference]: Without dead ends: 597 [2020-09-25 06:39:24,120 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:24,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2020-09-25 06:39:24,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 491. [2020-09-25 06:39:24,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-09-25 06:39:24,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 610 transitions. [2020-09-25 06:39:24,139 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 610 transitions. Word has length 46 [2020-09-25 06:39:24,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:24,139 INFO L479 AbstractCegarLoop]: Abstraction has 491 states and 610 transitions. [2020-09-25 06:39:24,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:24,140 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 610 transitions. [2020-09-25 06:39:24,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-25 06:39:24,142 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:24,143 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] [2020-09-25 06:39:24,143 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 06:39:24,143 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:24,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:24,144 INFO L82 PathProgramCache]: Analyzing trace with hash -144915038, now seen corresponding path program 1 times [2020-09-25 06:39:24,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:24,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [620072282] [2020-09-25 06:39:24,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:24,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:24,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:24,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:24,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 06:39:24,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:24,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 06:39:24,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:24,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:24,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:24,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-25 06:39:24,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:39:24,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:24,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:24,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:24,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:24,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:24,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:24,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:24,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:39:24,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:24,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:24,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:24,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:24,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:24,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:24,225 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 06:39:24,225 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [620072282] [2020-09-25 06:39:24,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:24,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:24,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701899068] [2020-09-25 06:39:24,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:24,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:24,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:24,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:24,227 INFO L87 Difference]: Start difference. First operand 491 states and 610 transitions. Second operand 3 states. [2020-09-25 06:39:24,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:24,247 INFO L93 Difference]: Finished difference Result 591 states and 724 transitions. [2020-09-25 06:39:24,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:24,248 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-09-25 06:39:24,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:24,251 INFO L225 Difference]: With dead ends: 591 [2020-09-25 06:39:24,252 INFO L226 Difference]: Without dead ends: 589 [2020-09-25 06:39:24,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:24,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2020-09-25 06:39:24,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 491. [2020-09-25 06:39:24,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-09-25 06:39:24,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 602 transitions. [2020-09-25 06:39:24,268 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 602 transitions. Word has length 47 [2020-09-25 06:39:24,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:24,269 INFO L479 AbstractCegarLoop]: Abstraction has 491 states and 602 transitions. [2020-09-25 06:39:24,269 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:24,269 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 602 transitions. [2020-09-25 06:39:24,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-25 06:39:24,271 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:24,271 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] [2020-09-25 06:39:24,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 06:39:24,271 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:24,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:24,272 INFO L82 PathProgramCache]: Analyzing trace with hash -351776260, now seen corresponding path program 1 times [2020-09-25 06:39:24,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:24,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [128341523] [2020-09-25 06:39:24,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:24,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:24,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:24,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:24,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 06:39:24,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:24,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 06:39:24,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:24,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:24,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:24,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-25 06:39:24,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:39:24,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:24,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:24,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:24,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:24,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:24,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:24,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:24,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:24,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:24,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:24,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:24,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:24,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:24,366 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 06:39:24,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [128341523] [2020-09-25 06:39:24,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:24,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:24,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046800869] [2020-09-25 06:39:24,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:24,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:24,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:24,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:24,375 INFO L87 Difference]: Start difference. First operand 491 states and 602 transitions. Second operand 3 states. [2020-09-25 06:39:24,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:24,412 INFO L93 Difference]: Finished difference Result 1373 states and 1691 transitions. [2020-09-25 06:39:24,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:24,413 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-09-25 06:39:24,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:24,417 INFO L225 Difference]: With dead ends: 1373 [2020-09-25 06:39:24,417 INFO L226 Difference]: Without dead ends: 491 [2020-09-25 06:39:24,419 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:24,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2020-09-25 06:39:24,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2020-09-25 06:39:24,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-09-25 06:39:24,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 570 transitions. [2020-09-25 06:39:24,436 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 570 transitions. Word has length 47 [2020-09-25 06:39:24,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:24,436 INFO L479 AbstractCegarLoop]: Abstraction has 491 states and 570 transitions. [2020-09-25 06:39:24,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:24,436 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 570 transitions. [2020-09-25 06:39:24,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-25 06:39:24,437 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:24,438 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] [2020-09-25 06:39:24,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 06:39:24,438 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:24,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:24,439 INFO L82 PathProgramCache]: Analyzing trace with hash 2062829121, now seen corresponding path program 1 times [2020-09-25 06:39:24,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:24,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1497803741] [2020-09-25 06:39:24,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:24,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:24,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:24,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 06:39:24,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:24,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 06:39:24,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:24,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:24,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:24,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 06:39:24,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:39:24,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:24,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:24,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:24,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:24,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:24,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:24,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:24,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:24,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:24,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:24,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:24,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:24,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:24,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:24,579 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 06:39:24,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1497803741] [2020-09-25 06:39:24,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:24,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:24,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804368815] [2020-09-25 06:39:24,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:24,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:24,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:24,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:24,581 INFO L87 Difference]: Start difference. First operand 491 states and 570 transitions. Second operand 3 states. [2020-09-25 06:39:24,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:24,593 INFO L93 Difference]: Finished difference Result 491 states and 570 transitions. [2020-09-25 06:39:24,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:24,594 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-09-25 06:39:24,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:24,594 INFO L225 Difference]: With dead ends: 491 [2020-09-25 06:39:24,594 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 06:39:24,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:24,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 06:39:24,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 06:39:24,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 06:39:24,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 06:39:24,596 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2020-09-25 06:39:24,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:24,597 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 06:39:24,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:24,597 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 06:39:24,597 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 06:39:24,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 06:39:24,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 06:39:24,636 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 06:39:24,636 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 06:39:24,636 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 06:39:24,636 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 06:39:24,637 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 06:39:24,637 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 06:39:24,637 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 4 93) no Hoare annotation was computed. [2020-09-25 06:39:24,637 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-09-25 06:39:24,637 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 06:39:24,639 INFO L268 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-09-25 06:39:24,639 INFO L268 CegarLoopResult]: For program point L53-1(lines 24 88) no Hoare annotation was computed. [2020-09-25 06:39:24,639 INFO L268 CegarLoopResult]: For program point L78-1(lines 24 88) no Hoare annotation was computed. [2020-09-25 06:39:24,639 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 06:39:24,639 INFO L268 CegarLoopResult]: For program point L45-1(lines 24 88) no Hoare annotation was computed. [2020-09-25 06:39:24,639 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-25 06:39:24,640 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-25 06:39:24,642 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-25 06:39:24,642 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-25 06:39:24,642 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-09-25 06:39:24,642 INFO L268 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-09-25 06:39:24,642 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-09-25 06:39:24,642 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-25 06:39:24,643 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 06:39:24,643 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 4 93) no Hoare annotation was computed. [2020-09-25 06:39:24,643 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 91) no Hoare annotation was computed. [2020-09-25 06:39:24,643 INFO L268 CegarLoopResult]: For program point L63-1(lines 24 88) no Hoare annotation was computed. [2020-09-25 06:39:24,643 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 4 93) the Hoare annotation is: true [2020-09-25 06:39:24,643 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 06:39:24,644 INFO L268 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-09-25 06:39:24,644 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 06:39:24,644 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-25 06:39:24,644 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-09-25 06:39:24,644 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-25 06:39:24,644 INFO L271 CegarLoopResult]: At program point L89(lines 5 93) the Hoare annotation is: true [2020-09-25 06:39:24,644 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 06:39:24,645 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-25 06:39:24,645 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-25 06:39:24,645 INFO L268 CegarLoopResult]: For program point L73-1(lines 24 88) no Hoare annotation was computed. [2020-09-25 06:39:24,645 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-25 06:39:24,645 INFO L268 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-09-25 06:39:24,645 INFO L268 CegarLoopResult]: For program point L57-1(lines 24 88) no Hoare annotation was computed. [2020-09-25 06:39:24,645 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 06:39:24,645 INFO L268 CegarLoopResult]: For program point L49-1(lines 24 88) no Hoare annotation was computed. [2020-09-25 06:39:24,646 INFO L268 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-09-25 06:39:24,646 INFO L268 CegarLoopResult]: For program point L41(lines 41 43) no Hoare annotation was computed. [2020-09-25 06:39:24,646 INFO L268 CegarLoopResult]: For program point L41-2(lines 24 88) no Hoare annotation was computed. [2020-09-25 06:39:24,646 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-09-25 06:39:24,647 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-09-25 06:39:24,647 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-25 06:39:24,647 INFO L268 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-09-25 06:39:24,647 INFO L268 CegarLoopResult]: For program point L25-2(line 25) no Hoare annotation was computed. [2020-09-25 06:39:24,648 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-09-25 06:39:24,649 INFO L271 CegarLoopResult]: At program point L83-1(lines 24 88) the Hoare annotation is: true [2020-09-25 06:39:24,649 INFO L268 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-09-25 06:39:24,650 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-09-25 06:39:24,650 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-25 06:39:24,650 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-09-25 06:39:24,650 INFO L268 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-09-25 06:39:24,650 INFO L268 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-09-25 06:39:24,650 INFO L268 CegarLoopResult]: For program point L26(lines 26 28) no Hoare annotation was computed. [2020-09-25 06:39:24,650 INFO L268 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-09-25 06:39:24,650 INFO L264 CegarLoopResult]: At program point L84-1(lines 5 93) the Hoare annotation is: false [2020-09-25 06:39:24,650 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 06:39:24,651 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-25 06:39:24,651 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-25 06:39:24,651 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 06:39:24,651 INFO L268 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-09-25 06:39:24,651 INFO L268 CegarLoopResult]: For program point L68-1(lines 24 88) no Hoare annotation was computed. [2020-09-25 06:39:24,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:39:24 BoogieIcfgContainer [2020-09-25 06:39:24,663 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 06:39:24,667 INFO L168 Benchmark]: Toolchain (without parser) took 3234.02 ms. Allocated memory was 137.4 MB in the beginning and 251.7 MB in the end (delta: 114.3 MB). Free memory was 99.6 MB in the beginning and 211.2 MB in the end (delta: -111.5 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:24,668 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 117.6 MB in the beginning and 117.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 06:39:24,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.52 ms. Allocated memory is still 137.4 MB. Free memory was 99.2 MB in the beginning and 88.8 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:24,670 INFO L168 Benchmark]: Boogie Preprocessor took 126.21 ms. Allocated memory was 137.4 MB in the beginning and 200.3 MB in the end (delta: 62.9 MB). Free memory was 88.8 MB in the beginning and 178.8 MB in the end (delta: -90.0 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:24,670 INFO L168 Benchmark]: RCFGBuilder took 427.45 ms. Allocated memory is still 200.3 MB. Free memory was 178.8 MB in the beginning and 161.5 MB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:24,671 INFO L168 Benchmark]: TraceAbstraction took 2354.09 ms. Allocated memory was 200.3 MB in the beginning and 251.7 MB in the end (delta: 51.4 MB). Free memory was 160.8 MB in the beginning and 211.2 MB in the end (delta: -50.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:24,675 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 117.6 MB in the beginning and 117.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 316.52 ms. Allocated memory is still 137.4 MB. Free memory was 99.2 MB in the beginning and 88.8 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.21 ms. Allocated memory was 137.4 MB in the beginning and 200.3 MB in the end (delta: 62.9 MB). Free memory was 88.8 MB in the beginning and 178.8 MB in the end (delta: -90.0 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 427.45 ms. Allocated memory is still 200.3 MB. Free memory was 178.8 MB in the beginning and 161.5 MB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2354.09 ms. Allocated memory was 200.3 MB in the beginning and 251.7 MB in the end (delta: 51.4 MB). Free memory was 160.8 MB in the beginning and 211.2 MB in the end (delta: -50.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 91]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 956 SDtfs, 332 SDslu, 668 SDs, 0 SdLazy, 49 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=491occurred in iteration=6, 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, 10 MinimizatonAttempts, 266 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 41 NumberOfFragments, 7 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 455 NumberOfCodeBlocks, 455 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 445 ConstructedInterpolants, 0 QuantifiedInterpolants, 24725 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...