/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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-simple/id_b3_o5-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:46:06,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:46:06,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:46:06,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:46:06,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:46:06,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:46:06,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:46:06,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:46:06,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:46:06,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:46:06,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:46:06,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:46:06,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:46:06,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:46:06,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:46:06,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:46:06,603 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:46:06,604 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:46:06,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:46:06,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:46:06,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:46:06,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:46:06,619 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:46:06,620 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:46:06,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:46:06,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:46:06,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:46:06,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:46:06,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:46:06,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:46:06,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:46:06,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:46:06,649 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:46:06,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:46:06,651 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:46:06,651 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:46:06,652 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:46:06,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:46:06,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:46:06,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:46:06,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:46:06,656 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 07:46:06,700 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:46:06,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:46:06,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:46:06,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:46:06,703 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:46:06,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:46:06,704 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:46:06,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:46:06,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:46:06,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:46:06,706 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:46:06,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:46:06,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:46:06,707 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:46:06,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:46:06,707 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:46:06,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:46:06,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:46:06,708 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:46:06,708 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:46:06,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:46:06,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:46:06,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:46:06,709 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:46:06,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:46:06,709 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:46:06,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:46:06,709 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:46:06,710 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:46:06,710 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:46:07,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:46:07,223 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:46:07,227 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:46:07,229 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:46:07,230 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:46:07,231 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_b3_o5-2.c [2020-09-25 07:46:07,313 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da3e7d629/1aee15b28d2e40ea8c656cc87148db75/FLAG7dc4ccb0e [2020-09-25 07:46:07,827 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:46:07,828 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_b3_o5-2.c [2020-09-25 07:46:07,836 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da3e7d629/1aee15b28d2e40ea8c656cc87148db75/FLAG7dc4ccb0e [2020-09-25 07:46:08,160 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da3e7d629/1aee15b28d2e40ea8c656cc87148db75 [2020-09-25 07:46:08,173 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:46:08,180 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:46:08,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:46:08,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:46:08,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:46:08,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:46:08" (1/1) ... [2020-09-25 07:46:08,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@788ef5e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:08, skipping insertion in model container [2020-09-25 07:46:08,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:46:08" (1/1) ... [2020-09-25 07:46:08,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:46:08,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:46:08,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:46:08,521 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:46:08,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:46:08,552 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:46:08,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:08 WrapperNode [2020-09-25 07:46:08,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:46:08,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:46:08,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:46:08,554 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:46:08,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:08" (1/1) ... [2020-09-25 07:46:08,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:08" (1/1) ... [2020-09-25 07:46:08,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:08" (1/1) ... [2020-09-25 07:46:08,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:08" (1/1) ... [2020-09-25 07:46:08,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:08" (1/1) ... [2020-09-25 07:46:08,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:08" (1/1) ... [2020-09-25 07:46:08,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:08" (1/1) ... [2020-09-25 07:46:08,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:46:08,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:46:08,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:46:08,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:46:08,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:08" (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 07:46:08,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:46:08,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:46:08,757 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-25 07:46:08,757 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:46:08,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:46:08,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:46:08,757 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-25 07:46:08,758 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:46:08,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:46:08,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:46:08,987 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:46:08,987 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 07:46:08,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:46:08 BoogieIcfgContainer [2020-09-25 07:46:08,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:46:08,994 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:46:08,994 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:46:08,998 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:46:08,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:46:08" (1/3) ... [2020-09-25 07:46:09,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f9a53c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:46:08, skipping insertion in model container [2020-09-25 07:46:09,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:08" (2/3) ... [2020-09-25 07:46:09,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f9a53c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:46:09, skipping insertion in model container [2020-09-25 07:46:09,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:46:08" (3/3) ... [2020-09-25 07:46:09,006 INFO L109 eAbstractionObserver]: Analyzing ICFG id_b3_o5-2.c [2020-09-25 07:46:09,020 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:46:09,031 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:46:09,058 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:46:09,098 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:46:09,099 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:46:09,099 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:46:09,099 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:46:09,100 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:46:09,100 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:46:09,100 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:46:09,100 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:46:09,130 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-09-25 07:46:09,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-25 07:46:09,141 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:46:09,143 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:46:09,143 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:46:09,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:46:09,153 INFO L82 PathProgramCache]: Analyzing trace with hash 856871792, now seen corresponding path program 1 times [2020-09-25 07:46:09,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:46:09,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [697275550] [2020-09-25 07:46:09,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:46:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:09,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:09,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:09,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:46:09,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:09,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 07:46:09,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:09,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:09,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:46:09,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 07:46:09,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:46:09,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:46:09,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:46:09,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:09,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:09,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:09,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:46:09,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:09,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:46:09,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:09,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:09,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:09,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:09,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:09,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:09,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 07:46:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:09,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:09,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:09,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:46:09,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:09,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:46:09,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:09,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:09,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:46:09,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:09,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:46:09,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:09,576 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 07:46:09,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [697275550] [2020-09-25 07:46:09,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:46:09,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:46:09,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88872976] [2020-09-25 07:46:09,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:46:09,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:46:09,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:46:09,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:46:09,605 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 5 states. [2020-09-25 07:46:09,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:46:09,716 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2020-09-25 07:46:09,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 07:46:09,719 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-25 07:46:09,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:46:09,733 INFO L225 Difference]: With dead ends: 44 [2020-09-25 07:46:09,733 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 07:46:09,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:46:09,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 07:46:09,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 07:46:09,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 07:46:09,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2020-09-25 07:46:09,794 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 18 [2020-09-25 07:46:09,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:46:09,795 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2020-09-25 07:46:09,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:46:09,795 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2020-09-25 07:46:09,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-09-25 07:46:09,798 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:46:09,798 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, 1] [2020-09-25 07:46:09,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:46:09,799 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:46:09,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:46:09,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1774609951, now seen corresponding path program 1 times [2020-09-25 07:46:09,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:46:09,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1296912127] [2020-09-25 07:46:09,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:46:09,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:09,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:10,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:10,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:10,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 07:46:10,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:46:10,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 600 [2020-09-25 07:46:10,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:10,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:10,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:46:10,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-25 07:46:10,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:46:10,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:46:10,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:46:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:10,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:10,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:10,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:46:10,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:10,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:46:10,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:10,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:10,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:10,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:10,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:10,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 07:46:10,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 07:46:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:10,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:10,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:10,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:10,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:46:10,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:46:10,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-09-25 07:46:10,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:10,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:10,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:46:10,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:10,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 07:46:10,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:46:10,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:46:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:10,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:10,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:10,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:46:10,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:10,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:46:10,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:10,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:10,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:10,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:10,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:10,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:10,856 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 07:46:10,856 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1296912127] [2020-09-25 07:46:10,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:46:10,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:46:10,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345888000] [2020-09-25 07:46:10,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:46:10,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:46:10,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:46:10,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:46:10,879 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand 5 states. [2020-09-25 07:46:10,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:46:10,936 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2020-09-25 07:46:10,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 07:46:10,937 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-09-25 07:46:10,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:46:10,939 INFO L225 Difference]: With dead ends: 36 [2020-09-25 07:46:10,939 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 07:46:10,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:46:10,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 07:46:10,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-25 07:46:10,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 07:46:10,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2020-09-25 07:46:10,966 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 28 [2020-09-25 07:46:10,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:46:10,967 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2020-09-25 07:46:10,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:46:10,967 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2020-09-25 07:46:10,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-09-25 07:46:10,968 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:46:10,968 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, 1] [2020-09-25 07:46:10,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:46:10,969 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:46:10,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:46:10,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1645321695, now seen corresponding path program 1 times [2020-09-25 07:46:10,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:46:10,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289053920] [2020-09-25 07:46:10,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:46:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:11,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:11,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:11,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:11,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 07:46:11,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:46:11,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-09-25 07:46:11,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:11,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:11,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:46:11,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 07:46:11,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:46:11,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:11,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:46:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:11,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:11,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:11,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:46:11,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:11,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:46:11,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:11,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:11,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:11,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:11,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:11,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:11,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 07:46:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:11,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:11,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:11,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:46:11,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:11,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 07:46:11,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:11,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:11,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:46:11,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:11,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 07:46:11,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:11,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:46:11,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:11,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:11,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:11,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:46:11,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:11,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 07:46:11,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:11,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:11,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:46:11,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:11,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:46:11,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:11,517 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 07:46:11,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [289053920] [2020-09-25 07:46:11,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:46:11,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 07:46:11,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578579314] [2020-09-25 07:46:11,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:46:11,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:46:11,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:46:11,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:46:11,522 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand 8 states. [2020-09-25 07:46:11,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:46:11,674 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2020-09-25 07:46:11,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 07:46:11,675 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2020-09-25 07:46:11,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:46:11,678 INFO L225 Difference]: With dead ends: 57 [2020-09-25 07:46:11,679 INFO L226 Difference]: Without dead ends: 37 [2020-09-25 07:46:11,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:46:11,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-09-25 07:46:11,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2020-09-25 07:46:11,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-25 07:46:11,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2020-09-25 07:46:11,698 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 28 [2020-09-25 07:46:11,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:46:11,699 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2020-09-25 07:46:11,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:46:11,699 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2020-09-25 07:46:11,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 07:46:11,703 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:46:11,703 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:46:11,704 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:46:11,705 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:46:11,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:46:11,705 INFO L82 PathProgramCache]: Analyzing trace with hash 41013968, now seen corresponding path program 2 times [2020-09-25 07:46:11,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:46:11,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [499517773] [2020-09-25 07:46:11,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:46:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:11,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:11,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:12,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:12,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:12,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 07:46:12,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:46:12,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 743 [2020-09-25 07:46:12,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:12,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:12,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:46:12,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 07:46:12,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 07:46:12,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-09-25 07:46:12,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:46:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:12,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:12,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:12,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:46:12,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:12,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:46:12,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:12,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:12,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:12,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:12,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:12,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:12,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 07:46:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:12,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:12,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:12,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:13,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:13,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 07:46:13,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:46:13,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 472 [2020-09-25 07:46:13,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:13,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:13,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:46:13,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:13,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 07:46:13,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:13,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:46:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:13,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:13,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:13,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:46:13,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:13,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 07:46:13,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:13,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:13,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:13,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:13,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:13,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:13,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:46:13,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:13,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:13,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:13,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:46:13,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:13,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:46:13,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:13,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:13,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:13,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:13,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:13,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:13,094 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-25 07:46:13,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [499517773] [2020-09-25 07:46:13,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:46:13,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:46:13,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790650223] [2020-09-25 07:46:13,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:46:13,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:46:13,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:46:13,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:46:13,100 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 6 states. [2020-09-25 07:46:13,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:46:13,153 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2020-09-25 07:46:13,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 07:46:13,155 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-09-25 07:46:13,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:46:13,156 INFO L225 Difference]: With dead ends: 37 [2020-09-25 07:46:13,156 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 07:46:13,160 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:46:13,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 07:46:13,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 07:46:13,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 07:46:13,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 07:46:13,162 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2020-09-25 07:46:13,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:46:13,162 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 07:46:13,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:46:13,162 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 07:46:13,162 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 07:46:13,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:46:13,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 07:46:13,198 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 07:46:13,198 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 07:46:13,199 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 07:46:13,199 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 07:46:13,199 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 07:46:13,199 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 07:46:13,199 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2020-09-25 07:46:13,200 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 11 17) the Hoare annotation is: true [2020-09-25 07:46:13,200 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 17) no Hoare annotation was computed. [2020-09-25 07:46:13,200 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 07:46:13,200 INFO L268 CegarLoopResult]: For program point L14(lines 14 16) no Hoare annotation was computed. [2020-09-25 07:46:13,200 INFO L271 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: true [2020-09-25 07:46:13,200 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 07:46:13,201 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-09-25 07:46:13,201 INFO L268 CegarLoopResult]: For program point L14-2(lines 11 17) no Hoare annotation was computed. [2020-09-25 07:46:13,201 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-25 07:46:13,201 INFO L268 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-09-25 07:46:13,201 INFO L268 CegarLoopResult]: For program point L13-3(line 13) no Hoare annotation was computed. [2020-09-25 07:46:13,201 INFO L268 CegarLoopResult]: For program point idFINAL(lines 4 9) no Hoare annotation was computed. [2020-09-25 07:46:13,201 INFO L268 CegarLoopResult]: For program point idEXIT(lines 4 9) no Hoare annotation was computed. [2020-09-25 07:46:13,202 INFO L271 CegarLoopResult]: At program point idENTRY(lines 4 9) the Hoare annotation is: true [2020-09-25 07:46:13,203 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-25 07:46:13,203 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-25 07:46:13,203 INFO L271 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: true [2020-09-25 07:46:13,203 INFO L268 CegarLoopResult]: For program point L7-1(line 7) no Hoare annotation was computed. [2020-09-25 07:46:13,203 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-25 07:46:13,204 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-25 07:46:13,204 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-25 07:46:13,204 INFO L268 CegarLoopResult]: For program point L6-2(line 6) no Hoare annotation was computed. [2020-09-25 07:46:13,204 INFO L268 CegarLoopResult]: For program point L6-3(line 6) no Hoare annotation was computed. [2020-09-25 07:46:13,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 07:46:13 BoogieIcfgContainer [2020-09-25 07:46:13,219 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 07:46:13,225 INFO L168 Benchmark]: Toolchain (without parser) took 5047.06 ms. Allocated memory was 138.4 MB in the beginning and 248.5 MB in the end (delta: 110.1 MB). Free memory was 101.7 MB in the beginning and 150.0 MB in the end (delta: -48.3 MB). Peak memory consumption was 61.8 MB. Max. memory is 7.1 GB. [2020-09-25 07:46:13,226 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 07:46:13,228 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.48 ms. Allocated memory is still 138.4 MB. Free memory was 101.0 MB in the beginning and 91.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2020-09-25 07:46:13,230 INFO L168 Benchmark]: Boogie Preprocessor took 31.79 ms. Allocated memory is still 138.4 MB. Free memory was 91.8 MB in the beginning and 90.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-25 07:46:13,237 INFO L168 Benchmark]: RCFGBuilder took 406.32 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 90.5 MB in the beginning and 168.2 MB in the end (delta: -77.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-09-25 07:46:13,238 INFO L168 Benchmark]: TraceAbstraction took 4225.46 ms. Allocated memory was 201.3 MB in the beginning and 248.5 MB in the end (delta: 47.2 MB). Free memory was 167.5 MB in the beginning and 150.0 MB in the end (delta: 17.6 MB). Peak memory consumption was 64.7 MB. Max. memory is 7.1 GB. [2020-09-25 07:46:13,250 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 371.48 ms. Allocated memory is still 138.4 MB. Free memory was 101.0 MB in the beginning and 91.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.79 ms. Allocated memory is still 138.4 MB. Free memory was 91.8 MB in the beginning and 90.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 406.32 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 90.5 MB in the beginning and 168.2 MB in the end (delta: -77.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4225.46 ms. Allocated memory was 201.3 MB in the beginning and 248.5 MB in the end (delta: 47.2 MB). Free memory was 167.5 MB in the beginning and 150.0 MB in the end (delta: 17.6 MB). Peak memory consumption was 64.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: 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: 4.0s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 104 SDtfs, 11 SDslu, 355 SDs, 0 SdLazy, 83 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=3, 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, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 7 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 5012 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 24/26 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...