/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 SequenceOfStatements --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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/oomInt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 15:42:51,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 15:42:51,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 15:42:51,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 15:42:51,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 15:42:51,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 15:42:51,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 15:42:51,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 15:42:51,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 15:42:51,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 15:42:51,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 15:42:51,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 15:42:51,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 15:42:51,850 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 15:42:51,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 15:42:51,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 15:42:51,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 15:42:51,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 15:42:51,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 15:42:51,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 15:42:51,868 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 15:42:51,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 15:42:51,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 15:42:51,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 15:42:51,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 15:42:51,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 15:42:51,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 15:42:51,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 15:42:51,892 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 15:42:51,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 15:42:51,894 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 15:42:51,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 15:42:51,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 15:42:51,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 15:42:51,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 15:42:51,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 15:42:51,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 15:42:51,899 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 15:42:51,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 15:42:51,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 15:42:51,902 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 15:42:51,902 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 [2020-10-12 15:42:51,940 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 15:42:51,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 15:42:51,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 15:42:51,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 15:42:51,943 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 15:42:51,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 15:42:51,944 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 15:42:51,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 15:42:51,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 15:42:51,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 15:42:51,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 15:42:51,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 15:42:51,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 15:42:51,946 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 15:42:51,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 15:42:51,946 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 15:42:51,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 15:42:51,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 15:42:51,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 15:42:51,947 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 15:42:51,947 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 15:42:51,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:42:51,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 15:42:51,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 15:42:51,948 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 15:42:51,948 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 15:42:51,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 15:42:51,949 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 15:42:51,949 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 15:42:51,949 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 -> SequenceOfStatements 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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 15:42:52,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 15:42:52,243 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 15:42:52,247 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 15:42:52,248 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 15:42:52,248 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 15:42:52,250 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/oomInt.i [2020-10-12 15:42:52,313 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0b726c794/26b42252f05c4242ac59bd04f5f32e9b/FLAG301a074ac [2020-10-12 15:42:52,751 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 15:42:52,751 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/oomInt.i [2020-10-12 15:42:52,757 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0b726c794/26b42252f05c4242ac59bd04f5f32e9b/FLAG301a074ac [2020-10-12 15:42:53,151 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0b726c794/26b42252f05c4242ac59bd04f5f32e9b [2020-10-12 15:42:53,159 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 15:42:53,161 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 15:42:53,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 15:42:53,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 15:42:53,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 15:42:53,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:42:53" (1/1) ... [2020-10-12 15:42:53,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d98017f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:42:53, skipping insertion in model container [2020-10-12 15:42:53,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:42:53" (1/1) ... [2020-10-12 15:42:53,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 15:42:53,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 15:42:53,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:42:53,392 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 15:42:53,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:42:53,415 INFO L208 MainTranslator]: Completed translation [2020-10-12 15:42:53,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:42:53 WrapperNode [2020-10-12 15:42:53,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 15:42:53,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 15:42:53,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 15:42:53,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 15:42:53,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:42:53" (1/1) ... [2020-10-12 15:42:53,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:42:53" (1/1) ... [2020-10-12 15:42:53,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:42:53" (1/1) ... [2020-10-12 15:42:53,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:42:53" (1/1) ... [2020-10-12 15:42:53,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:42:53" (1/1) ... [2020-10-12 15:42:53,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:42:53" (1/1) ... [2020-10-12 15:42:53,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:42:53" (1/1) ... [2020-10-12 15:42:53,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 15:42:53,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 15:42:53,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 15:42:53,526 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 15:42:53,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:42:53" (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 [2020-10-12 15:42:53,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 15:42:53,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 15:42:53,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-12 15:42:53,589 INFO L138 BoogieDeclarations]: Found implementation of procedure abs_int [2020-10-12 15:42:53,589 INFO L138 BoogieDeclarations]: Found implementation of procedure firstFunction [2020-10-12 15:42:53,589 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 15:42:53,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 15:42:53,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-12 15:42:53,590 INFO L130 BoogieDeclarations]: Found specification of procedure abs_int [2020-10-12 15:42:53,590 INFO L130 BoogieDeclarations]: Found specification of procedure firstFunction [2020-10-12 15:42:53,590 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 15:42:53,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 15:42:53,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 15:42:53,743 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 15:42:53,744 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 15:42:53,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:42:53 BoogieIcfgContainer [2020-10-12 15:42:53,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 15:42:53,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 15:42:53,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 15:42:53,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 15:42:53,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 03:42:53" (1/3) ... [2020-10-12 15:42:53,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c60885f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:42:53, skipping insertion in model container [2020-10-12 15:42:53,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:42:53" (2/3) ... [2020-10-12 15:42:53,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c60885f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:42:53, skipping insertion in model container [2020-10-12 15:42:53,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:42:53" (3/3) ... [2020-10-12 15:42:53,756 INFO L109 eAbstractionObserver]: Analyzing ICFG oomInt.i [2020-10-12 15:42:53,766 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 15:42:53,773 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 15:42:53,788 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 15:42:53,813 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 15:42:53,814 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 15:42:53,814 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 15:42:53,814 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 15:42:53,814 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 15:42:53,814 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 15:42:53,815 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 15:42:53,815 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 15:42:53,834 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-10-12 15:42:53,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-12 15:42:53,840 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:42:53,841 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:42:53,842 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:42:53,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:42:53,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1310527286, now seen corresponding path program 1 times [2020-10-12 15:42:53,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:42:53,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1889542314] [2020-10-12 15:42:53,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:42:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:53,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:54,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:54,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 15:42:54,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:42:54,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-12 15:42:54,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:54,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:42:54,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 15:42:54,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 15:42:54,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 15:42:54,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:42:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:54,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:54,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:54,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:42:54,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:42:54,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:42:54,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:54,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:42:54,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:42:54,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:42:54,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:42:54,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:42:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:54,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:54,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:54,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:42:54,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:42:54,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 15:42:54,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:54,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 15:42:54,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:42:54,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 15:42:54,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 15:42:54,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:42:54,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1889542314] [2020-10-12 15:42:54,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:42:54,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 15:42:54,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175781295] [2020-10-12 15:42:54,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 15:42:54,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:42:54,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 15:42:54,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:42:54,525 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 8 states. [2020-10-12 15:42:54,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:42:54,735 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-10-12 15:42:54,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 15:42:54,738 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2020-10-12 15:42:54,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:42:54,748 INFO L225 Difference]: With dead ends: 49 [2020-10-12 15:42:54,748 INFO L226 Difference]: Without dead ends: 17 [2020-10-12 15:42:54,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:42:54,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-10-12 15:42:54,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-10-12 15:42:54,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-12 15:42:54,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2020-10-12 15:42:54,789 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 16 [2020-10-12 15:42:54,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:42:54,790 INFO L479 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2020-10-12 15:42:54,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 15:42:54,790 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2020-10-12 15:42:54,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-12 15:42:54,791 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:42:54,791 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:42:54,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 15:42:54,792 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:42:54,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:42:54,793 INFO L82 PathProgramCache]: Analyzing trace with hash 432283049, now seen corresponding path program 1 times [2020-10-12 15:42:54,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:42:54,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1901750245] [2020-10-12 15:42:54,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:42:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:54,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:54,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:54,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:54,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 15:42:54,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:42:54,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-12 15:42:54,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:54,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:42:54,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 15:42:54,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 15:42:54,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:42:55,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:42:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:55,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:55,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:55,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:42:55,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:42:55,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:42:55,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:55,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:42:55,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:42:55,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:42:55,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:42:55,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:42:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:55,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:55,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:55,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:55,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:42:55,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:42:55,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 15:42:55,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:55,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 15:42:55,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:42:55,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 15:42:55,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:42:55,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:42:55,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1901750245] [2020-10-12 15:42:55,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:42:55,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 15:42:55,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462035460] [2020-10-12 15:42:55,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 15:42:55,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:42:55,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 15:42:55,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:42:55,080 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand 8 states. [2020-10-12 15:42:55,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:42:55,206 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2020-10-12 15:42:55,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 15:42:55,206 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2020-10-12 15:42:55,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:42:55,207 INFO L225 Difference]: With dead ends: 17 [2020-10-12 15:42:55,207 INFO L226 Difference]: Without dead ends: 0 [2020-10-12 15:42:55,208 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-12 15:42:55,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-12 15:42:55,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-12 15:42:55,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-12 15:42:55,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-12 15:42:55,210 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-12 15:42:55,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:42:55,210 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-12 15:42:55,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 15:42:55,210 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-12 15:42:55,211 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-12 15:42:55,211 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 15:42:55,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-12 15:42:55,295 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-12 15:42:55,295 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~p~0 |old(~p~0)|) [2020-10-12 15:42:55,296 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-12 15:42:55,296 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-12 15:42:55,296 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (<= 0 ~p~0) [2020-10-12 15:42:55,296 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-12 15:42:55,296 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-12 15:42:55,297 INFO L268 CegarLoopResult]: For program point abs_intEXIT(lines 16 25) no Hoare annotation was computed. [2020-10-12 15:42:55,297 INFO L271 CegarLoopResult]: At program point abs_intENTRY(lines 16 25) the Hoare annotation is: true [2020-10-12 15:42:55,297 INFO L268 CegarLoopResult]: For program point L18(lines 18 24) no Hoare annotation was computed. [2020-10-12 15:42:55,297 INFO L268 CegarLoopResult]: For program point abs_intFINAL(lines 16 25) no Hoare annotation was computed. [2020-10-12 15:42:55,297 INFO L264 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (or (<= 0 ~p~0) (not (<= 0 |old(~p~0)|))) [2020-10-12 15:42:55,297 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-10-12 15:42:55,298 INFO L264 CegarLoopResult]: At program point firstFunctionENTRY(lines 27 31) the Hoare annotation is: (or (= ~p~0 |old(~p~0)|) (not (<= 0 |old(~p~0)|))) [2020-10-12 15:42:55,298 INFO L268 CegarLoopResult]: For program point firstFunctionFINAL(lines 27 31) no Hoare annotation was computed. [2020-10-12 15:42:55,298 INFO L268 CegarLoopResult]: For program point firstFunctionEXIT(lines 27 31) no Hoare annotation was computed. [2020-10-12 15:42:55,298 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 33 36) the Hoare annotation is: (or (= ~p~0 |old(~p~0)|) (not (<= 0 |old(~p~0)|))) [2020-10-12 15:42:55,298 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 33 36) no Hoare annotation was computed. [2020-10-12 15:42:55,299 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 33 36) no Hoare annotation was computed. [2020-10-12 15:42:55,299 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 12) the Hoare annotation is: true [2020-10-12 15:42:55,299 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-10-12 15:42:55,299 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 12) no Hoare annotation was computed. [2020-10-12 15:42:55,299 INFO L268 CegarLoopResult]: For program point L8(lines 8 11) no Hoare annotation was computed. [2020-10-12 15:42:55,300 INFO L268 CegarLoopResult]: For program point L8-2(lines 6 12) no Hoare annotation was computed. [2020-10-12 15:42:55,300 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2020-10-12 15:42:55,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 03:42:55 BoogieIcfgContainer [2020-10-12 15:42:55,307 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 15:42:55,310 INFO L168 Benchmark]: Toolchain (without parser) took 2148.31 ms. Allocated memory was 146.3 MB in the beginning and 236.5 MB in the end (delta: 90.2 MB). Free memory was 102.3 MB in the beginning and 186.6 MB in the end (delta: -84.3 MB). Peak memory consumption was 5.9 MB. Max. memory is 7.1 GB. [2020-10-12 15:42:55,311 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-10-12 15:42:55,312 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.45 ms. Allocated memory is still 146.3 MB. Free memory was 101.9 MB in the beginning and 92.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2020-10-12 15:42:55,314 INFO L168 Benchmark]: Boogie Preprocessor took 108.99 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 92.7 MB in the beginning and 182.1 MB in the end (delta: -89.5 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-10-12 15:42:55,314 INFO L168 Benchmark]: RCFGBuilder took 222.41 ms. Allocated memory is still 203.4 MB. Free memory was 182.1 MB in the beginning and 170.5 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2020-10-12 15:42:55,315 INFO L168 Benchmark]: TraceAbstraction took 1557.84 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 169.8 MB in the beginning and 186.6 MB in the end (delta: -16.8 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. [2020-10-12 15:42:55,320 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 254.45 ms. Allocated memory is still 146.3 MB. Free memory was 101.9 MB in the beginning and 92.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.99 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 92.7 MB in the beginning and 182.1 MB in the end (delta: -89.5 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 222.41 ms. Allocated memory is still 203.4 MB. Free memory was 182.1 MB in the beginning and 170.5 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1557.84 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 169.8 MB in the beginning and 186.6 MB in the end (delta: -16.8 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: 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 6 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 32 SDtfs, 40 SDslu, 103 SDs, 0 SdLazy, 99 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 9 PreInvPairs, 10 NumberOfFragments, 33 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 60 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 870 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...