/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/recHanoi03-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:06:39,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:06:39,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:06:39,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:06:39,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:06:39,954 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:06:39,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:06:39,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:06:39,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:06:39,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:06:39,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:06:39,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:06:39,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:06:39,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:06:39,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:06:39,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:06:39,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:06:39,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:06:39,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:06:39,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:06:39,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:06:39,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:06:39,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:06:39,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:06:39,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:06:39,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:06:39,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:06:39,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:06:39,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:06:39,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:06:39,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:06:39,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:06:39,993 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:06:39,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:06:39,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:06:39,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:06:39,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:06:39,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:06:39,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:06:39,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:06:39,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:06:39,999 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 11:06:40,026 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:06:40,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:06:40,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:06:40,028 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:06:40,028 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:06:40,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:06:40,029 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:06:40,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:06:40,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:06:40,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:06:40,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:06:40,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:06:40,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:06:40,030 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:06:40,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:06:40,031 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:06:40,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:06:40,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:06:40,031 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:06:40,031 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:06:40,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:06:40,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:06:40,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:06:40,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:06:40,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:06:40,033 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:06:40,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:06:40,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:06:40,033 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:06:40,033 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 11:06:40,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:06:40,493 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:06:40,500 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:06:40,501 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:06:40,503 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:06:40,504 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/recHanoi03-2.c [2020-09-25 11:06:40,586 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a52a85889/fb0d1352bb5c46ab95be9ff379de091b/FLAG6e7e4416e [2020-09-25 11:06:41,081 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:06:41,082 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/recHanoi03-2.c [2020-09-25 11:06:41,090 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a52a85889/fb0d1352bb5c46ab95be9ff379de091b/FLAG6e7e4416e [2020-09-25 11:06:41,438 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a52a85889/fb0d1352bb5c46ab95be9ff379de091b [2020-09-25 11:06:41,452 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:06:41,458 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:06:41,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:06:41,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:06:41,464 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:06:41,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:06:41" (1/1) ... [2020-09-25 11:06:41,469 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2016ce5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:06:41, skipping insertion in model container [2020-09-25 11:06:41,469 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:06:41" (1/1) ... [2020-09-25 11:06:41,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:06:41,503 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:06:41,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:06:41,708 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:06:41,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:06:41,743 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:06:41,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:06:41 WrapperNode [2020-09-25 11:06:41,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:06:41,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:06:41,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:06:41,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:06:41,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:06:41" (1/1) ... [2020-09-25 11:06:41,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:06:41" (1/1) ... [2020-09-25 11:06:41,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:06:41" (1/1) ... [2020-09-25 11:06:41,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:06:41" (1/1) ... [2020-09-25 11:06:41,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:06:41" (1/1) ... [2020-09-25 11:06:41,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:06:41" (1/1) ... [2020-09-25 11:06:41,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:06:41" (1/1) ... [2020-09-25 11:06:41,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:06:41,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:06:41,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:06:41,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:06:41,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:06:41" (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 11:06:41,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:06:41,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:06:41,929 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-09-25 11:06:41,930 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:06:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:06:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:06:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-09-25 11:06:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:06:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:06:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:06:42,143 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:06:42,144 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 11:06:42,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:06:42 BoogieIcfgContainer [2020-09-25 11:06:42,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:06:42,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:06:42,150 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:06:42,154 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:06:42,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:06:41" (1/3) ... [2020-09-25 11:06:42,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c5f2396 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:06:42, skipping insertion in model container [2020-09-25 11:06:42,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:06:41" (2/3) ... [2020-09-25 11:06:42,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c5f2396 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:06:42, skipping insertion in model container [2020-09-25 11:06:42,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:06:42" (3/3) ... [2020-09-25 11:06:42,159 INFO L109 eAbstractionObserver]: Analyzing ICFG recHanoi03-2.c [2020-09-25 11:06:42,170 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:06:42,180 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:06:42,202 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:06:42,230 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:06:42,230 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:06:42,230 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:06:42,230 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:06:42,231 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:06:42,231 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:06:42,231 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:06:42,231 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:06:42,250 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-09-25 11:06:42,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-25 11:06:42,257 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:06:42,258 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:06:42,259 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:06:42,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:06:42,265 INFO L82 PathProgramCache]: Analyzing trace with hash 607163649, now seen corresponding path program 1 times [2020-09-25 11:06:42,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:06:42,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833019955] [2020-09-25 11:06:42,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:06:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:42,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:42,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:42,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 11:06:42,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:42,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-09-25 11:06:42,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:42,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:42,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 11:06:42,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 11:06:42,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 11:06:42,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 11:06:42,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:06:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:42,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:42,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:42,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:06:42,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:42,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:06:42,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:42,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:42,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:06:42,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:42,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:06:42,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:42,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 11:06:42,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:42,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:42,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:42,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:06:42,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:42,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 11:06:42,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:42,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:42,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:06:42,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:42,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:06:42,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:06:42,853 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 11:06:42,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1833019955] [2020-09-25 11:06:42,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:06:42,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 11:06:42,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396309916] [2020-09-25 11:06:42,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 11:06:42,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:06:42,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 11:06:42,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 11:06:42,905 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 7 states. [2020-09-25 11:06:43,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:06:43,107 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2020-09-25 11:06:43,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 11:06:43,110 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-25 11:06:43,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:06:43,123 INFO L225 Difference]: With dead ends: 45 [2020-09-25 11:06:43,124 INFO L226 Difference]: Without dead ends: 26 [2020-09-25 11:06:43,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 11:06:43,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-25 11:06:43,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-09-25 11:06:43,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-09-25 11:06:43,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-09-25 11:06:43,181 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 19 [2020-09-25 11:06:43,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:06:43,182 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-09-25 11:06:43,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 11:06:43,182 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-09-25 11:06:43,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-25 11:06:43,185 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:06:43,185 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:06:43,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:06:43,186 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:06:43,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:06:43,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1887435767, now seen corresponding path program 1 times [2020-09-25 11:06:43,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:06:43,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [841843534] [2020-09-25 11:06:43,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:06:43,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:43,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:43,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:43,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 11:06:43,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:43,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 336 [2020-09-25 11:06:43,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:43,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:43,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 11:06:43,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 11:06:43,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 11:06:43,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 11:06:43,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:06:43,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:43,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:43,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:43,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:06:43,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:43,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:06:43,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:43,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:43,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:06:43,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:43,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:06:43,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:43,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 11:06:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:43,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:43,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:43,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 11:06:43,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:43,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 11:06:43,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:43,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:43,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 11:06:43,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:43,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 11:06:43,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:43,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:06:43,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:43,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:43,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:43,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:06:43,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:43,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 11:06:43,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:43,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:43,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 11:06:43,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:43,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:06:43,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:43,798 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 11:06:43,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [841843534] [2020-09-25 11:06:43,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:06:43,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 11:06:43,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50735384] [2020-09-25 11:06:43,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 11:06:43,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:06:43,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 11:06:43,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 11:06:43,803 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 10 states. [2020-09-25 11:06:43,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:06:43,996 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-09-25 11:06:43,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 11:06:43,996 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2020-09-25 11:06:43,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:06:43,998 INFO L225 Difference]: With dead ends: 37 [2020-09-25 11:06:43,998 INFO L226 Difference]: Without dead ends: 31 [2020-09-25 11:06:43,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2020-09-25 11:06:44,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-09-25 11:06:44,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-09-25 11:06:44,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-25 11:06:44,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2020-09-25 11:06:44,008 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 27 [2020-09-25 11:06:44,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:06:44,008 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2020-09-25 11:06:44,008 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 11:06:44,008 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2020-09-25 11:06:44,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 11:06:44,010 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:06:44,010 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:06:44,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:06:44,011 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:06:44,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:06:44,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1929059777, now seen corresponding path program 2 times [2020-09-25 11:06:44,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:06:44,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1967529939] [2020-09-25 11:06:44,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:06:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:44,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:44,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:44,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 11:06:44,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:44,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-09-25 11:06:44,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:44,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:44,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 11:06:44,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 11:06:44,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 11:06:44,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:44,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:06:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:44,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:44,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:44,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:06:44,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:44,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:06:44,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:44,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:44,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:06:44,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:44,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:06:44,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:44,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 11:06:44,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:44,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:44,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:44,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 11:06:44,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:44,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 11:06:44,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:44,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:44,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 11:06:44,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:44,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 11:06:44,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:44,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:06:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:44,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:44,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:44,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 11:06:44,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:44,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 11:06:44,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:44,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:44,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 11:06:44,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:44,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 11:06:44,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:44,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:06:44,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:44,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:44,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:44,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:06:44,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:44,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 11:06:44,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:44,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:44,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 11:06:44,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:44,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:06:44,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:44,592 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 11:06:44,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1967529939] [2020-09-25 11:06:44,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:06:44,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 11:06:44,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546851853] [2020-09-25 11:06:44,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 11:06:44,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:06:44,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 11:06:44,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-25 11:06:44,596 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 12 states. [2020-09-25 11:06:44,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:06:44,865 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2020-09-25 11:06:44,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 11:06:44,866 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2020-09-25 11:06:44,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:06:44,868 INFO L225 Difference]: With dead ends: 42 [2020-09-25 11:06:44,868 INFO L226 Difference]: Without dead ends: 36 [2020-09-25 11:06:44,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2020-09-25 11:06:44,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-25 11:06:44,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-09-25 11:06:44,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-25 11:06:44,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-09-25 11:06:44,877 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 35 [2020-09-25 11:06:44,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:06:44,877 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-09-25 11:06:44,877 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 11:06:44,878 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-09-25 11:06:44,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 11:06:44,879 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:06:44,880 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:06:44,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:06:44,880 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:06:44,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:06:44,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1069340361, now seen corresponding path program 3 times [2020-09-25 11:06:44,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:06:44,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1305284590] [2020-09-25 11:06:44,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:06:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:44,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:45,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:45,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 11:06:45,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:45,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 358 [2020-09-25 11:06:45,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:45,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:45,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 11:06:45,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 11:06:45,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 11:06:45,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:45,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:06:45,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:45,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:45,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:45,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:06:45,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:45,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:06:45,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:45,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:45,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:06:45,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:45,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:06:45,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:45,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 11:06:45,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:45,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:45,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:45,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 11:06:45,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:45,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 11:06:45,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:45,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:45,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 11:06:45,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:45,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 11:06:45,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:45,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:06:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:45,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:45,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:45,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 11:06:45,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:45,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 11:06:45,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:45,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:45,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 11:06:45,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:45,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 11:06:45,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:45,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:06:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:45,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:45,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:45,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 11:06:45,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:45,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 11:06:45,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:45,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:45,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 11:06:45,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:45,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 11:06:45,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:45,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:06:45,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:45,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:45,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:45,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:06:45,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:45,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:06:45,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:45,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:45,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 11:06:45,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:45,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:06:45,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:45,655 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 25 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 11:06:45,655 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1305284590] [2020-09-25 11:06:45,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:06:45,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 11:06:45,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141113435] [2020-09-25 11:06:45,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 11:06:45,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:06:45,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 11:06:45,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-09-25 11:06:45,658 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 14 states. [2020-09-25 11:06:46,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:06:46,031 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-09-25 11:06:46,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 11:06:46,031 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 43 [2020-09-25 11:06:46,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:06:46,033 INFO L225 Difference]: With dead ends: 47 [2020-09-25 11:06:46,033 INFO L226 Difference]: Without dead ends: 41 [2020-09-25 11:06:46,034 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650 [2020-09-25 11:06:46,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-09-25 11:06:46,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-09-25 11:06:46,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-25 11:06:46,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-09-25 11:06:46,041 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 43 [2020-09-25 11:06:46,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:06:46,042 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-09-25 11:06:46,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 11:06:46,042 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-09-25 11:06:46,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 11:06:46,044 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:06:46,044 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:06:46,044 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 11:06:46,045 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:06:46,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:06:46,045 INFO L82 PathProgramCache]: Analyzing trace with hash -287672703, now seen corresponding path program 4 times [2020-09-25 11:06:46,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:06:46,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1875820895] [2020-09-25 11:06:46,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:06:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:46,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:46,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:46,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:46,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 11:06:46,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:06:46,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 534 [2020-09-25 11:06:46,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:46,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:46,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 11:06:46,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 11:06:46,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 11:06:46,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:06:46,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:06:46,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:46,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:46,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:46,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:06:46,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:46,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:06:46,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:46,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:46,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:06:46,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:46,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:06:46,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:46,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 11:06:46,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:46,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:46,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:46,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:46,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 11:06:46,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:06:46,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-25 11:06:46,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:46,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:46,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 11:06:46,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:46,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 11:06:46,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:46,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:06:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:46,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:47,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:47,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 11:06:47,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:47,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 11:06:47,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:47,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:47,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 11:06:47,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:47,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 11:06:47,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:47,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:06:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:47,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:47,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:47,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 11:06:47,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:47,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 11:06:47,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:47,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:47,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 11:06:47,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:47,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 11:06:47,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:47,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:06:47,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:47,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:47,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:47,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 11:06:47,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:47,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 11:06:47,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:47,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:47,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:06:47,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:47,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 11:06:47,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:47,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:06:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:47,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:47,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:47,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:06:47,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:47,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:06:47,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:47,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:47,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 11:06:47,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:47,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:06:47,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:47,284 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-25 11:06:47,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1875820895] [2020-09-25 11:06:47,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:06:47,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 11:06:47,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352703241] [2020-09-25 11:06:47,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 11:06:47,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:06:47,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 11:06:47,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-09-25 11:06:47,287 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 14 states. [2020-09-25 11:06:47,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:06:47,448 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2020-09-25 11:06:47,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 11:06:47,448 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 51 [2020-09-25 11:06:47,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:06:47,449 INFO L225 Difference]: With dead ends: 41 [2020-09-25 11:06:47,449 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 11:06:47,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2020-09-25 11:06:47,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 11:06:47,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 11:06:47,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 11:06:47,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 11:06:47,452 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2020-09-25 11:06:47,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:06:47,452 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 11:06:47,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 11:06:47,452 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 11:06:47,452 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 11:06:47,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 11:06:47,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 11:06:47,484 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 11:06:47,484 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 11:06:47,484 INFO L268 CegarLoopResult]: For program point L17(lines 17 19) no Hoare annotation was computed. [2020-09-25 11:06:47,484 INFO L268 CegarLoopResult]: For program point L20-3(line 20) no Hoare annotation was computed. [2020-09-25 11:06:47,484 INFO L268 CegarLoopResult]: For program point hanoiEXIT(lines 16 21) no Hoare annotation was computed. [2020-09-25 11:06:47,484 INFO L271 CegarLoopResult]: At program point hanoiENTRY(lines 16 21) the Hoare annotation is: true [2020-09-25 11:06:47,485 INFO L268 CegarLoopResult]: For program point hanoiFINAL(lines 16 21) no Hoare annotation was computed. [2020-09-25 11:06:47,485 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (= hanoi_~n |hanoi_#in~n|) [2020-09-25 11:06:47,485 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-09-25 11:06:47,485 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 11:06:47,485 INFO L268 CegarLoopResult]: For program point L20-2(line 20) no Hoare annotation was computed. [2020-09-25 11:06:47,485 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 11:06:47,486 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 11:06:47,486 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 11:06:47,486 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 11:06:47,486 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-09-25 11:06:47,486 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 33) no Hoare annotation was computed. [2020-09-25 11:06:47,486 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-25 11:06:47,486 INFO L268 CegarLoopResult]: For program point L30(lines 30 34) no Hoare annotation was computed. [2020-09-25 11:06:47,487 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 24 35) the Hoare annotation is: true [2020-09-25 11:06:47,487 INFO L264 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (<= main_~n~0 31) [2020-09-25 11:06:47,487 INFO L268 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed. [2020-09-25 11:06:47,487 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-25 11:06:47,487 INFO L268 CegarLoopResult]: For program point L29-2(line 29) no Hoare annotation was computed. [2020-09-25 11:06:47,487 INFO L268 CegarLoopResult]: For program point L26(lines 26 28) no Hoare annotation was computed. [2020-09-25 11:06:47,488 INFO L268 CegarLoopResult]: For program point L29-3(line 29) no Hoare annotation was computed. [2020-09-25 11:06:47,488 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-25 11:06:47,488 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 24 35) no Hoare annotation was computed. [2020-09-25 11:06:47,488 INFO L268 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-09-25 11:06:47,488 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 24 35) no Hoare annotation was computed. [2020-09-25 11:06:47,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 11:06:47 BoogieIcfgContainer [2020-09-25 11:06:47,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 11:06:47,500 INFO L168 Benchmark]: Toolchain (without parser) took 6044.65 ms. Allocated memory was 138.9 MB in the beginning and 283.6 MB in the end (delta: 144.7 MB). Free memory was 102.2 MB in the beginning and 192.8 MB in the end (delta: -90.6 MB). Peak memory consumption was 54.1 MB. Max. memory is 7.1 GB. [2020-09-25 11:06:47,501 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 11:06:47,501 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.52 ms. Allocated memory is still 138.9 MB. Free memory was 101.6 MB in the beginning and 92.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-09-25 11:06:47,502 INFO L168 Benchmark]: Boogie Preprocessor took 28.94 ms. Allocated memory is still 138.9 MB. Free memory was 92.3 MB in the beginning and 91.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-25 11:06:47,503 INFO L168 Benchmark]: RCFGBuilder took 375.55 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 90.8 MB in the beginning and 168.1 MB in the end (delta: -77.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-09-25 11:06:47,504 INFO L168 Benchmark]: TraceAbstraction took 5345.82 ms. Allocated memory was 201.3 MB in the beginning and 283.6 MB in the end (delta: 82.3 MB). Free memory was 168.1 MB in the beginning and 192.8 MB in the end (delta: -24.7 MB). Peak memory consumption was 57.6 MB. Max. memory is 7.1 GB. [2020-09-25 11:06:47,508 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 284.52 ms. Allocated memory is still 138.9 MB. Free memory was 101.6 MB in the beginning and 92.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.94 ms. Allocated memory is still 138.9 MB. Free memory was 92.3 MB in the beginning and 91.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 375.55 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 90.8 MB in the beginning and 168.1 MB in the end (delta: -77.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5345.82 ms. Allocated memory was 201.3 MB in the beginning and 283.6 MB in the end (delta: 82.3 MB). Free memory was 168.1 MB in the beginning and 192.8 MB in the end (delta: -24.7 MB). Peak memory consumption was 57.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 33]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.2s, OverallIterations: 5, TraceHistogramMax: 5, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 117 SDtfs, 114 SDslu, 575 SDs, 0 SdLazy, 510 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 11 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 175 NumberOfCodeBlocks, 175 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 20916 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 81/120 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...