/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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-new/count_by_1_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:20:43,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:20:43,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:20:43,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:20:43,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:20:43,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:20:43,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:20:43,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:20:43,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:20:43,756 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:20:43,757 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:20:43,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:20:43,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:20:43,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:20:43,764 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:20:43,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:20:43,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:20:43,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:20:43,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:20:43,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:20:43,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:20:43,785 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:20:43,786 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:20:43,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:20:43,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:20:43,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:20:43,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:20:43,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:20:43,796 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:20:43,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:20:43,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:20:43,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:20:43,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:20:43,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:20:43,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:20:43,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:20:43,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:20:43,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:20:43,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:20:43,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:20:43,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:20:43,809 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 02:20:43,860 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:20:43,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:20:43,865 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:20:43,866 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:20:43,866 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:20:43,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:20:43,866 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:20:43,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:20:43,867 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:20:43,867 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:20:43,867 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:20:43,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:20:43,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:20:43,868 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:20:43,868 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:20:43,868 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:20:43,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:20:43,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:20:43,869 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:20:43,869 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:20:43,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:20:43,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:20:43,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:20:43,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:20:43,870 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:20:43,870 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:20:43,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:20:43,871 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:20:43,871 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:20:43,871 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 02:20:44,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:20:44,344 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:20:44,349 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:20:44,351 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:20:44,351 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:20:44,353 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/count_by_1_variant.i [2020-09-25 02:20:44,438 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e451d788/34ed15e5602b4efebe0694d166ffa3be/FLAGf58e1b7c6 [2020-09-25 02:20:44,998 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:20:44,999 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-new/count_by_1_variant.i [2020-09-25 02:20:45,007 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e451d788/34ed15e5602b4efebe0694d166ffa3be/FLAGf58e1b7c6 [2020-09-25 02:20:45,372 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e451d788/34ed15e5602b4efebe0694d166ffa3be [2020-09-25 02:20:45,387 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:20:45,393 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:20:45,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:20:45,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:20:45,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:20:45,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:20:45" (1/1) ... [2020-09-25 02:20:45,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6920a351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:45, skipping insertion in model container [2020-09-25 02:20:45,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:20:45" (1/1) ... [2020-09-25 02:20:45,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:20:45,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:20:45,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:20:45,669 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:20:45,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:20:45,706 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:20:45,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:45 WrapperNode [2020-09-25 02:20:45,707 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:20:45,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:20:45,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:20:45,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:20:45,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:45" (1/1) ... [2020-09-25 02:20:45,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:45" (1/1) ... [2020-09-25 02:20:45,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:45" (1/1) ... [2020-09-25 02:20:45,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:45" (1/1) ... [2020-09-25 02:20:45,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:45" (1/1) ... [2020-09-25 02:20:45,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:45" (1/1) ... [2020-09-25 02:20:45,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:45" (1/1) ... [2020-09-25 02:20:45,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:20:45,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:20:45,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:20:45,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:20:45,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:45" (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 02:20:45,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:20:45,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:20:45,913 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 02:20:45,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 02:20:45,913 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:20:45,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:20:45,914 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 02:20:45,914 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 02:20:45,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 02:20:45,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:20:45,914 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:20:45,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:20:45,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:20:46,108 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:20:46,108 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 02:20:46,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:20:46 BoogieIcfgContainer [2020-09-25 02:20:46,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:20:46,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:20:46,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:20:46,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:20:46,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:20:45" (1/3) ... [2020-09-25 02:20:46,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a700345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:20:46, skipping insertion in model container [2020-09-25 02:20:46,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:45" (2/3) ... [2020-09-25 02:20:46,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a700345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:20:46, skipping insertion in model container [2020-09-25 02:20:46,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:20:46" (3/3) ... [2020-09-25 02:20:46,123 INFO L109 eAbstractionObserver]: Analyzing ICFG count_by_1_variant.i [2020-09-25 02:20:46,133 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:20:46,144 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:20:46,165 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:20:46,196 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:20:46,196 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:20:46,197 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:20:46,197 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:20:46,197 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:20:46,197 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:20:46,197 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:20:46,197 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:20:46,218 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-09-25 02:20:46,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-25 02:20:46,225 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:20:46,226 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:20:46,226 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:20:46,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:20:46,233 INFO L82 PathProgramCache]: Analyzing trace with hash 576660498, now seen corresponding path program 1 times [2020-09-25 02:20:46,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:20:46,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1925691358] [2020-09-25 02:20:46,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:20:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:20:46,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:20:46,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:20:46,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:20:46,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:20:46,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 02:20:46,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:20:46,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:20:46,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 02:20:46,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:20:46,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 02:20:46,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:20:46,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:20:46,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:20:46,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:20:46,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:20:46,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:20:46,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:20:46,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:20:46,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:20:46,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:20:46,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:20:46,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 02:20:46,584 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 02:20:46,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1925691358] [2020-09-25 02:20:46,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:20:46,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 02:20:46,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806257382] [2020-09-25 02:20:46,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 02:20:46,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:20:46,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 02:20:46,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:20:46,639 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 5 states. [2020-09-25 02:20:46,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:20:46,758 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2020-09-25 02:20:46,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 02:20:46,760 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-09-25 02:20:46,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:20:46,769 INFO L225 Difference]: With dead ends: 46 [2020-09-25 02:20:46,770 INFO L226 Difference]: Without dead ends: 25 [2020-09-25 02:20:46,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 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 02:20:46,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-09-25 02:20:46,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2020-09-25 02:20:46,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-09-25 02:20:46,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2020-09-25 02:20:46,817 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 11 [2020-09-25 02:20:46,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:20:46,817 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2020-09-25 02:20:46,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 02:20:46,818 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2020-09-25 02:20:46,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-25 02:20:46,819 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:20:46,819 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:20:46,819 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:20:46,819 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:20:46,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:20:46,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1548867886, now seen corresponding path program 1 times [2020-09-25 02:20:46,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:20:46,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1758778470] [2020-09-25 02:20:46,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:20:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:20:46,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:20:46,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:20:47,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:20:47,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 02:20:47,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:20:47,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-09-25 02:20:47,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:20:47,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:20:47,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 02:20:47,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 02:20:47,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:20:47,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:20:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:20:47,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:20:47,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:20:47,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:20:47,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:20:47,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:20:47,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:20:47,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:20:47,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:20:47,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:20:47,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:20:47,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 02:20:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:20:47,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:20:47,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:20:47,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:20:47,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:20:47,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 02:20:47,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:20:47,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:20:47,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:20:47,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:20:47,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:20:47,364 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:20:47,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1758778470] [2020-09-25 02:20:47,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:20:47,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 02:20:47,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602084638] [2020-09-25 02:20:47,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 02:20:47,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:20:47,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 02:20:47,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 02:20:47,368 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 10 states. [2020-09-25 02:20:47,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:20:47,484 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2020-09-25 02:20:47,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 02:20:47,485 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-09-25 02:20:47,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:20:47,486 INFO L225 Difference]: With dead ends: 23 [2020-09-25 02:20:47,486 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 02:20:47,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-09-25 02:20:47,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 02:20:47,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 02:20:47,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 02:20:47,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 02:20:47,489 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-09-25 02:20:47,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:20:47,490 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 02:20:47,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 02:20:47,490 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 02:20:47,490 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 02:20:47,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:20:47,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 02:20:47,535 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 02:20:47,536 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 02:20:47,536 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 02:20:47,536 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 02:20:47,536 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 02:20:47,536 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 02:20:47,537 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-09-25 02:20:47,537 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-09-25 02:20:47,537 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-25 02:20:47,537 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-25 02:20:47,537 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-09-25 02:20:47,538 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 19) the Hoare annotation is: true [2020-09-25 02:20:47,538 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 19) no Hoare annotation was computed. [2020-09-25 02:20:47,538 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (<= main_~i~0 999999) [2020-09-25 02:20:47,538 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 02:20:47,538 INFO L268 CegarLoopResult]: For program point L16-1(lines 15 17) no Hoare annotation was computed. [2020-09-25 02:20:47,539 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 19) no Hoare annotation was computed. [2020-09-25 02:20:47,539 INFO L268 CegarLoopResult]: For program point L15-3(line 15) no Hoare annotation was computed. [2020-09-25 02:20:47,539 INFO L268 CegarLoopResult]: For program point L15-4(line 15) no Hoare annotation was computed. [2020-09-25 02:20:47,539 INFO L264 CegarLoopResult]: At program point L15-5(lines 15 17) the Hoare annotation is: (<= main_~i~0 1000000) [2020-09-25 02:20:47,540 INFO L268 CegarLoopResult]: For program point L15-6(lines 15 17) no Hoare annotation was computed. [2020-09-25 02:20:47,540 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-09-25 02:20:47,540 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-09-25 02:20:47,540 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-25 02:20:47,540 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-09-25 02:20:47,541 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-09-25 02:20:47,541 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-09-25 02:20:47,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:20:47 BoogieIcfgContainer [2020-09-25 02:20:47,574 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 02:20:47,581 INFO L168 Benchmark]: Toolchain (without parser) took 2188.51 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.3 MB in the beginning and 95.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 69.4 MB. Max. memory is 7.1 GB. [2020-09-25 02:20:47,583 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 140.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 02:20:47,584 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.79 ms. Allocated memory is still 140.5 MB. Free memory was 101.6 MB in the beginning and 92.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2020-09-25 02:20:47,585 INFO L168 Benchmark]: Boogie Preprocessor took 122.19 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 92.4 MB in the beginning and 182.6 MB in the end (delta: -90.2 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-09-25 02:20:47,587 INFO L168 Benchmark]: RCFGBuilder took 282.35 ms. Allocated memory is still 203.4 MB. Free memory was 182.0 MB in the beginning and 170.8 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2020-09-25 02:20:47,589 INFO L168 Benchmark]: TraceAbstraction took 1460.03 ms. Allocated memory is still 203.4 MB. Free memory was 170.1 MB in the beginning and 95.8 MB in the end (delta: 74.3 MB). Peak memory consumption was 74.3 MB. Max. memory is 7.1 GB. [2020-09-25 02:20:47,599 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 140.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 310.79 ms. Allocated memory is still 140.5 MB. Free memory was 101.6 MB in the beginning and 92.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.19 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 92.4 MB in the beginning and 182.6 MB in the end (delta: -90.2 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 282.35 ms. Allocated memory is still 203.4 MB. Free memory was 182.0 MB in the beginning and 170.8 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1460.03 ms. Allocated memory is still 203.4 MB. Free memory was 170.1 MB in the beginning and 95.8 MB in the end (delta: 74.3 MB). Peak memory consumption was 74.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: i <= 1000000 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 17 SDslu, 98 SDs, 0 SdLazy, 57 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=1, 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, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 13 NumberOfFragments, 11 HoareAnnotationTreeSize, 9 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 1492 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 2/4 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...