/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=0.5 --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 14:29:28,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:29:28,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:29:28,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:29:28,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:29:28,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:29:28,559 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:29:28,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:29:28,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:29:28,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:29:28,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:29:28,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:29:28,567 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:29:28,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:29:28,569 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:29:28,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:29:28,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:29:28,572 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:29:28,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:29:28,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:29:28,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:29:28,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:29:28,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:29:28,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:29:28,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:29:28,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:29:28,599 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:29:28,600 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:29:28,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:29:28,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:29:28,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:29:28,606 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:29:28,606 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:29:28,608 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:29:28,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:29:28,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:29:28,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:29:28,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:29:28,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:29:28,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:29:28,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:29:28,616 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 14:29:28,678 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:29:28,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:29:28,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:29:28,682 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:29:28,682 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:29:28,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:29:28,682 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:29:28,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:29:28,683 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:29:28,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:29:28,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:29:28,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:29:28,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:29:28,685 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:29:28,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:29:28,685 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:29:28,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:29:28,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:29:28,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:29:28,686 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:29:28,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:29:28,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:29:28,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:29:28,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:29:28,687 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:29:28,688 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:29:28,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:29:28,688 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:29:28,688 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:29:28,688 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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;log-additional-information=true; [2020-09-25 14:29:29,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:29:29,194 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:29:29,199 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:29:29,200 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:29:29,201 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:29:29,202 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/recHanoi03-2.c [2020-09-25 14:29:29,282 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aefb8f1b7/634ae482761b4fa884a6c768e42d7a98/FLAGb951fd484 [2020-09-25 14:29:29,853 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:29:29,854 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/recHanoi03-2.c [2020-09-25 14:29:29,863 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aefb8f1b7/634ae482761b4fa884a6c768e42d7a98/FLAGb951fd484 [2020-09-25 14:29:30,191 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aefb8f1b7/634ae482761b4fa884a6c768e42d7a98 [2020-09-25 14:29:30,206 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:29:30,213 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:29:30,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:29:30,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:29:30,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:29:30,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:29:30" (1/1) ... [2020-09-25 14:29:30,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cb7919e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:30, skipping insertion in model container [2020-09-25 14:29:30,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:29:30" (1/1) ... [2020-09-25 14:29:30,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:29:30,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:29:30,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:29:30,485 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:29:30,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:29:30,522 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:29:30,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:30 WrapperNode [2020-09-25 14:29:30,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:29:30,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:29:30,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:29:30,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:29:30,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:30" (1/1) ... [2020-09-25 14:29:30,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:30" (1/1) ... [2020-09-25 14:29:30,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:30" (1/1) ... [2020-09-25 14:29:30,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:30" (1/1) ... [2020-09-25 14:29:30,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:30" (1/1) ... [2020-09-25 14:29:30,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:30" (1/1) ... [2020-09-25 14:29:30,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:30" (1/1) ... [2020-09-25 14:29:30,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:29:30,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:29:30,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:29:30,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:29:30,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:30" (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 14:29:30,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:29:30,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:29:30,726 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-09-25 14:29:30,726 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:29:30,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:29:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:29:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-09-25 14:29:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:29:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:29:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:29:30,998 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:29:30,998 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 14:29:31,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:29:31 BoogieIcfgContainer [2020-09-25 14:29:31,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:29:31,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:29:31,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:29:31,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:29:31,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:29:30" (1/3) ... [2020-09-25 14:29:31,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30cd4aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:29:31, skipping insertion in model container [2020-09-25 14:29:31,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:30" (2/3) ... [2020-09-25 14:29:31,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30cd4aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:29:31, skipping insertion in model container [2020-09-25 14:29:31,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:29:31" (3/3) ... [2020-09-25 14:29:31,026 INFO L109 eAbstractionObserver]: Analyzing ICFG recHanoi03-2.c [2020-09-25 14:29:31,051 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:29:31,063 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:29:31,084 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:29:31,113 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:29:31,114 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:29:31,114 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:29:31,114 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:29:31,114 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:29:31,115 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:29:31,115 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:29:31,115 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:29:31,135 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-09-25 14:29:31,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-25 14:29:31,143 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:31,145 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 14:29:31,145 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:31,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:31,152 INFO L82 PathProgramCache]: Analyzing trace with hash 607163649, now seen corresponding path program 1 times [2020-09-25 14:29:31,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:31,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1715318862] [2020-09-25 14:29:31,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:31,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:31,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:31,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:31,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 14:29:31,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:31,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-25 14:29:31,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:31,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:31,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:29:31,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 14:29:31,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:29:31,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:29:31,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:31,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:31,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:31,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:31,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:31,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:31,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:29:31,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:31,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:31,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:31,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:31,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:31,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:31,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 14:29:31,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:31,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:31,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:31,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:31,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:31,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 14:29:31,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:31,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:31,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:31,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:31,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:29:31,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 14:29:31,758 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 14:29:31,759 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1715318862] [2020-09-25 14:29:31,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:29:31,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:29:31,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750532571] [2020-09-25 14:29:31,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:29:31,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:31,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:29:31,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:29:31,794 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 7 states. [2020-09-25 14:29:31,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:31,993 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2020-09-25 14:29:31,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 14:29:31,997 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-25 14:29:31,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:32,017 INFO L225 Difference]: With dead ends: 45 [2020-09-25 14:29:32,018 INFO L226 Difference]: Without dead ends: 26 [2020-09-25 14:29:32,022 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 14:29:32,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-25 14:29:32,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-09-25 14:29:32,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-09-25 14:29:32,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-09-25 14:29:32,077 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 19 [2020-09-25 14:29:32,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:32,078 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-09-25 14:29:32,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:29:32,079 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-09-25 14:29:32,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-25 14:29:32,081 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:32,081 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 14:29:32,082 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:29:32,082 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:32,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:32,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1887435767, now seen corresponding path program 1 times [2020-09-25 14:29:32,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:32,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [838931071] [2020-09-25 14:29:32,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:32,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:32,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:32,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 14:29:32,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:32,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-09-25 14:29:32,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:32,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:32,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:29:32,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 14:29:32,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:29:32,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:29:32,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:32,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:32,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:32,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:32,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:32,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:32,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:29:32,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:32,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:32,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:32,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:32,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:32,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:29:32,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 14:29:32,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:32,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:32,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:32,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:29:32,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:32,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 14:29:32,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:32,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:32,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 14:29:32,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:32,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:29:32,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:32,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:29:32,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:32,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:32,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:32,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:32,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:32,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 14:29:32,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:32,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:32,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:29:32,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:32,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:29:32,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-09-25 14:29:32,698 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 14:29:32,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [838931071] [2020-09-25 14:29:32,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:29:32,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 14:29:32,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504777874] [2020-09-25 14:29:32,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 14:29:32,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:32,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 14:29:32,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:29:32,703 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 10 states. [2020-09-25 14:29:32,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:32,883 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-09-25 14:29:32,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 14:29:32,884 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2020-09-25 14:29:32,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:32,885 INFO L225 Difference]: With dead ends: 37 [2020-09-25 14:29:32,886 INFO L226 Difference]: Without dead ends: 31 [2020-09-25 14:29:32,887 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 14:29:32,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-09-25 14:29:32,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-09-25 14:29:32,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-25 14:29:32,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2020-09-25 14:29:32,895 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 27 [2020-09-25 14:29:32,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:32,896 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2020-09-25 14:29:32,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 14:29:32,896 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2020-09-25 14:29:32,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 14:29:32,897 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:32,898 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 14:29:32,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:29:32,898 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:32,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:32,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1929059777, now seen corresponding path program 2 times [2020-09-25 14:29:32,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:32,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1931057021] [2020-09-25 14:29:32,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:32,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:33,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:33,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 14:29:33,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:33,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-09-25 14:29:33,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:33,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:33,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 14:29:33,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 14:29:33,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 14:29:33,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:33,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:33,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:33,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:33,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:33,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:33,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:29:33,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:33,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:33,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:33,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:33,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:33,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:33,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 14:29:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:33,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:33,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:33,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 14:29:33,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:33,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 14:29:33,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:33,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:33,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 14:29:33,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:33,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:29:33,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:33,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:29:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:33,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:33,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:33,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:29:33,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:33,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 14:29:33,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:33,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:33,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:29:33,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:33,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:29:33,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:33,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:29:33,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:33,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:33,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:33,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:33,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:33,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 14:29:33,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:33,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:33,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:29:33,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:33,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:29:33,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:33,582 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 14:29:33,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1931057021] [2020-09-25 14:29:33,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:29:33,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 14:29:33,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543455382] [2020-09-25 14:29:33,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 14:29:33,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:33,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 14:29:33,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-25 14:29:33,586 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 12 states. [2020-09-25 14:29:33,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:33,900 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2020-09-25 14:29:33,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 14:29:33,900 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2020-09-25 14:29:33,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:33,902 INFO L225 Difference]: With dead ends: 42 [2020-09-25 14:29:33,902 INFO L226 Difference]: Without dead ends: 36 [2020-09-25 14:29:33,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2020-09-25 14:29:33,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-25 14:29:33,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-09-25 14:29:33,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-25 14:29:33,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-09-25 14:29:33,911 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 35 [2020-09-25 14:29:33,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:33,912 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-09-25 14:29:33,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 14:29:33,912 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-09-25 14:29:33,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 14:29:33,913 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:33,914 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 14:29:33,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:29:33,914 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:33,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:33,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1069340361, now seen corresponding path program 3 times [2020-09-25 14:29:33,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:33,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2038625722] [2020-09-25 14:29:33,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:33,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:34,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:34,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 14:29:34,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:34,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 392 [2020-09-25 14:29:34,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:34,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:34,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 14:29:34,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 14:29:34,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 14:29:34,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:34,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:34,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:34,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:34,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:34,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:34,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:34,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:29:34,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:34,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:34,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:34,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:34,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:34,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:34,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 14:29:34,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:34,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:34,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:34,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 14:29:34,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:34,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 14:29:34,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:34,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:34,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 14:29:34,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:34,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 14:29:34,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:34,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:29:34,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:34,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:34,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:34,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 14:29:34,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:34,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-25 14:29:34,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:34,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:34,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 14:29:34,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:34,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:29:34,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:34,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:29:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:34,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:34,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:34,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:29:34,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:34,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 14:29:34,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:34,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:34,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:29:34,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:34,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:29:34,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:34,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:29:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:34,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:34,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:34,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:34,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:34,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:29:34,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:34,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:34,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:29:34,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:34,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:29:34,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:29:34,814 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 14:29:34,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2038625722] [2020-09-25 14:29:34,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:29:34,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 14:29:34,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157374568] [2020-09-25 14:29:34,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 14:29:34,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:34,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 14:29:34,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-09-25 14:29:34,820 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 14 states. [2020-09-25 14:29:35,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:35,219 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-09-25 14:29:35,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 14:29:35,220 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 43 [2020-09-25 14:29:35,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:35,221 INFO L225 Difference]: With dead ends: 47 [2020-09-25 14:29:35,221 INFO L226 Difference]: Without dead ends: 41 [2020-09-25 14:29:35,225 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 14:29:35,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-09-25 14:29:35,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-09-25 14:29:35,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-25 14:29:35,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-09-25 14:29:35,237 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 43 [2020-09-25 14:29:35,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:35,237 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-09-25 14:29:35,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 14:29:35,238 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-09-25 14:29:35,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 14:29:35,241 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:35,242 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 14:29:35,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:29:35,242 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:35,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:35,243 INFO L82 PathProgramCache]: Analyzing trace with hash -287672703, now seen corresponding path program 4 times [2020-09-25 14:29:35,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:35,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1182882464] [2020-09-25 14:29:35,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:35,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:35,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:35,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:35,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:35,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 14:29:35,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:35,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 580 [2020-09-25 14:29:35,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:35,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:35,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 14:29:35,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 14:29:35,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 14:29:35,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:29:35,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:35,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:35,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:35,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:35,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:35,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:29:35,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:35,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:35,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:35,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:35,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:35,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:35,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 14:29:35,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:35,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:36,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:36,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:36,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 14:29:36,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:36,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-09-25 14:29:36,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:36,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:36,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:29:36,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:36,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 14:29:36,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:36,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:29:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:36,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:36,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:36,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 14:29:36,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:36,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-25 14:29:36,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:36,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:36,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:29:36,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:36,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 14:29:36,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:36,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:29:36,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:36,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:36,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:36,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 14:29:36,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:36,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 14:29:36,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:36,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:36,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:29:36,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:36,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 14:29:36,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:36,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:29:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:36,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:36,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:36,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:29:36,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:36,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 14:29:36,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:36,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:36,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:29:36,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:36,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 14:29:36,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:36,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:29:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:36,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:36,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:36,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:36,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:36,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 14:29:36,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:36,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:36,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:29:36,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:36,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:29:36,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:29:36,630 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 14:29:36,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1182882464] [2020-09-25 14:29:36,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:29:36,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 14:29:36,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038239004] [2020-09-25 14:29:36,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 14:29:36,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:36,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 14:29:36,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-09-25 14:29:36,633 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 14 states. [2020-09-25 14:29:36,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:36,811 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2020-09-25 14:29:36,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 14:29:36,811 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 51 [2020-09-25 14:29:36,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:36,812 INFO L225 Difference]: With dead ends: 41 [2020-09-25 14:29:36,812 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 14:29:36,815 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 14:29:36,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 14:29:36,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 14:29:36,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 14:29:36,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 14:29:36,816 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2020-09-25 14:29:36,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:36,816 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 14:29:36,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 14:29:36,817 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 14:29:36,817 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 14:29:36,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 14:29:36,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 14:29:36,860 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 14:29:36,860 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 14:29:36,860 INFO L268 CegarLoopResult]: For program point L17(lines 17 19) no Hoare annotation was computed. [2020-09-25 14:29:36,860 INFO L268 CegarLoopResult]: For program point L20-3(line 20) no Hoare annotation was computed. [2020-09-25 14:29:36,860 INFO L268 CegarLoopResult]: For program point hanoiEXIT(lines 16 21) no Hoare annotation was computed. [2020-09-25 14:29:36,860 INFO L271 CegarLoopResult]: At program point hanoiENTRY(lines 16 21) the Hoare annotation is: true [2020-09-25 14:29:36,861 INFO L268 CegarLoopResult]: For program point hanoiFINAL(lines 16 21) no Hoare annotation was computed. [2020-09-25 14:29:36,861 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (= hanoi_~n |hanoi_#in~n|) [2020-09-25 14:29:36,861 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-09-25 14:29:36,861 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 14:29:36,861 INFO L268 CegarLoopResult]: For program point L20-2(line 20) no Hoare annotation was computed. [2020-09-25 14:29:36,861 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 14:29:36,862 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 14:29:36,862 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 14:29:36,862 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 14:29:36,862 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-09-25 14:29:36,862 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 33) no Hoare annotation was computed. [2020-09-25 14:29:36,862 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-25 14:29:36,862 INFO L268 CegarLoopResult]: For program point L30(lines 30 34) no Hoare annotation was computed. [2020-09-25 14:29:36,863 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 24 35) the Hoare annotation is: true [2020-09-25 14:29:36,863 INFO L264 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (<= main_~n~0 31) [2020-09-25 14:29:36,863 INFO L268 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed. [2020-09-25 14:29:36,863 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-25 14:29:36,863 INFO L268 CegarLoopResult]: For program point L29-2(line 29) no Hoare annotation was computed. [2020-09-25 14:29:36,863 INFO L268 CegarLoopResult]: For program point L26(lines 26 28) no Hoare annotation was computed. [2020-09-25 14:29:36,863 INFO L268 CegarLoopResult]: For program point L29-3(line 29) no Hoare annotation was computed. [2020-09-25 14:29:36,863 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-25 14:29:36,864 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 24 35) no Hoare annotation was computed. [2020-09-25 14:29:36,864 INFO L268 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-09-25 14:29:36,864 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 24 35) no Hoare annotation was computed. [2020-09-25 14:29:36,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:29:36 BoogieIcfgContainer [2020-09-25 14:29:36,879 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 14:29:36,884 INFO L168 Benchmark]: Toolchain (without parser) took 6673.13 ms. Allocated memory was 140.0 MB in the beginning and 279.4 MB in the end (delta: 139.5 MB). Free memory was 103.6 MB in the beginning and 174.0 MB in the end (delta: -70.4 MB). Peak memory consumption was 69.1 MB. Max. memory is 7.1 GB. [2020-09-25 14:29:36,885 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 14:29:36,887 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.95 ms. Allocated memory is still 140.0 MB. Free memory was 103.0 MB in the beginning and 93.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-09-25 14:29:36,892 INFO L168 Benchmark]: Boogie Preprocessor took 32.82 ms. Allocated memory is still 140.0 MB. Free memory was 93.6 MB in the beginning and 92.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-25 14:29:36,894 INFO L168 Benchmark]: RCFGBuilder took 448.28 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 92.3 MB in the beginning and 169.8 MB in the end (delta: -77.5 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-09-25 14:29:36,895 INFO L168 Benchmark]: TraceAbstraction took 5862.85 ms. Allocated memory was 202.9 MB in the beginning and 279.4 MB in the end (delta: 76.5 MB). Free memory was 169.1 MB in the beginning and 174.0 MB in the end (delta: -4.8 MB). Peak memory consumption was 71.7 MB. Max. memory is 7.1 GB. [2020-09-25 14:29:36,908 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 308.95 ms. Allocated memory is still 140.0 MB. Free memory was 103.0 MB in the beginning and 93.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.82 ms. Allocated memory is still 140.0 MB. Free memory was 93.6 MB in the beginning and 92.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 448.28 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 92.3 MB in the beginning and 169.8 MB in the end (delta: -77.5 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5862.85 ms. Allocated memory was 202.9 MB in the beginning and 279.4 MB in the end (delta: 76.5 MB). Free memory was 169.1 MB in the beginning and 174.0 MB in the end (delta: -4.8 MB). Peak memory consumption was 71.7 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: 5.7s, OverallIterations: 5, TraceHistogramMax: 5, AutomataDifference: 1.3s, 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, 1.2s 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, 3.9s 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...