/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --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-crafted/simple_vardep_2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:39:34,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:39:34,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:39:34,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:39:34,853 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:39:34,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:39:34,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:39:34,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:39:34,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:39:34,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:39:34,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:39:34,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:39:34,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:39:34,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:39:34,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:39:34,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:39:34,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:39:34,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:39:34,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:39:34,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:39:34,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:39:34,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:39:34,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:39:34,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:39:34,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:39:34,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:39:34,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:39:34,886 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:39:34,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:39:34,887 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:39:34,888 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:39:34,889 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:39:34,890 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:39:34,891 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:39:34,892 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:39:34,892 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:39:34,893 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:39:34,893 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:39:34,893 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:39:34,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:39:34,895 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:39:34,896 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 13:39:34,923 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:39:34,923 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:39:34,925 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:39:34,925 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:39:34,925 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:39:34,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:39:34,926 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:39:34,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:39:34,926 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:39:34,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:39:34,927 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:39:34,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:39:34,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:39:34,927 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:39:34,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:39:34,928 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:39:34,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:39:34,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:39:34,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:39:34,928 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:39:34,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:39:34,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:39:34,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:39:34,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:39:34,930 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:39:34,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:39:34,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:39:34,930 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:39:34,930 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:39:34,931 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:39:35,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:39:35,457 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:39:35,462 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:39:35,464 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:39:35,464 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:39:35,466 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_vardep_2.c [2020-09-25 13:39:35,561 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d38bae9d/de309436793341829ce63d788d4488bf/FLAGe38be5c04 [2020-09-25 13:39:36,121 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:39:36,122 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-crafted/simple_vardep_2.c [2020-09-25 13:39:36,131 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d38bae9d/de309436793341829ce63d788d4488bf/FLAGe38be5c04 [2020-09-25 13:39:36,445 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d38bae9d/de309436793341829ce63d788d4488bf [2020-09-25 13:39:36,461 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:39:36,468 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:39:36,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:39:36,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:39:36,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:39:36,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:39:36" (1/1) ... [2020-09-25 13:39:36,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73fa4179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:36, skipping insertion in model container [2020-09-25 13:39:36,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:39:36" (1/1) ... [2020-09-25 13:39:36,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:39:36,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:39:36,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:39:36,736 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:39:36,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:39:36,768 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:39:36,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:36 WrapperNode [2020-09-25 13:39:36,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:39:36,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:39:36,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:39:36,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:39:36,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:36" (1/1) ... [2020-09-25 13:39:36,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:36" (1/1) ... [2020-09-25 13:39:36,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:36" (1/1) ... [2020-09-25 13:39:36,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:36" (1/1) ... [2020-09-25 13:39:36,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:36" (1/1) ... [2020-09-25 13:39:36,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:36" (1/1) ... [2020-09-25 13:39:36,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:36" (1/1) ... [2020-09-25 13:39:36,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:39:36,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:39:36,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:39:36,882 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:39:36,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:36" (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 13:39:36,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:39:36,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:39:36,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 13:39:36,969 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:39:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:39:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 13:39:36,970 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:39:36,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:39:36,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:39:37,164 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:39:37,165 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 13:39:37,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:39:37 BoogieIcfgContainer [2020-09-25 13:39:37,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:39:37,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:39:37,170 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:39:37,174 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:39:37,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:39:36" (1/3) ... [2020-09-25 13:39:37,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f55e742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:39:37, skipping insertion in model container [2020-09-25 13:39:37,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:36" (2/3) ... [2020-09-25 13:39:37,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f55e742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:39:37, skipping insertion in model container [2020-09-25 13:39:37,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:39:37" (3/3) ... [2020-09-25 13:39:37,179 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_vardep_2.c [2020-09-25 13:39:37,191 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:39:37,201 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:39:37,222 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:39:37,251 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:39:37,251 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:39:37,251 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:39:37,251 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:39:37,252 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:39:37,252 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:39:37,252 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:39:37,252 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:39:37,271 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-09-25 13:39:37,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-25 13:39:37,278 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:39:37,280 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:39:37,280 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:39:37,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:39:37,288 INFO L82 PathProgramCache]: Analyzing trace with hash -420526341, now seen corresponding path program 1 times [2020-09-25 13:39:37,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:39:37,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1590600849] [2020-09-25 13:39:37,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:39:37,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:37,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:37,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:37,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 13:39:37,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:39:37,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 406 [2020-09-25 13:39:37,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:37,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:37,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 13:39:37,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:39:37,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 13:39:37,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 13:39:38,600 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 35 [2020-09-25 13:39:38,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:39:38,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:38,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:38,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:38,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:39:38,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:39:38,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:39:38,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:38,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:38,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:39:38,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:39:38,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:39:38,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:38,666 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 13:39:38,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1590600849] [2020-09-25 13:39:38,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:39:38,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 13:39:38,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971305854] [2020-09-25 13:39:38,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:39:38,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:39:38,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:39:38,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:39:38,698 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 10 states. [2020-09-25 13:39:38,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:39:38,990 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2020-09-25 13:39:38,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 13:39:38,992 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-09-25 13:39:38,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:39:39,001 INFO L225 Difference]: With dead ends: 50 [2020-09-25 13:39:39,001 INFO L226 Difference]: Without dead ends: 29 [2020-09-25 13:39:39,005 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-09-25 13:39:39,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-09-25 13:39:39,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2020-09-25 13:39:39,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-09-25 13:39:39,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2020-09-25 13:39:39,048 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 15 [2020-09-25 13:39:39,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:39:39,049 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2020-09-25 13:39:39,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:39:39,049 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2020-09-25 13:39:39,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-25 13:39:39,050 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:39:39,051 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:39:39,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:39:39,051 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:39:39,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:39:39,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1780540834, now seen corresponding path program 1 times [2020-09-25 13:39:39,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:39:39,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1536903177] [2020-09-25 13:39:39,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:39:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:39,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:39,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:40,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:40,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 13:39:40,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:39:40,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1875 [2020-09-25 13:39:40,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:40,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:40,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 13:39:40,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 13:39:40,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 13:39:40,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:39:41,550 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 40 [2020-09-25 13:39:41,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:39:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:41,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:41,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:41,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:39:41,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:39:41,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:39:41,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:41,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:41,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:39:41,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:39:41,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:39:41,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:41,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:39:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:41,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:41,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:41,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:39:41,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:39:41,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 13:39:41,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:41,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:41,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:39:41,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:39:41,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:39:41,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:41,715 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:39:41,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1536903177] [2020-09-25 13:39:41,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:39:41,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 13:39:41,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037490036] [2020-09-25 13:39:41,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 13:39:41,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:39:41,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 13:39:41,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:39:41,720 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 8 states. [2020-09-25 13:39:44,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:39:44,542 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2020-09-25 13:39:44,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 13:39:44,543 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2020-09-25 13:39:44,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:39:44,544 INFO L225 Difference]: With dead ends: 27 [2020-09-25 13:39:44,544 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 13:39:44,545 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:39:44,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 13:39:44,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 13:39:44,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 13:39:44,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 13:39:44,547 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2020-09-25 13:39:44,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:39:44,547 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 13:39:44,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 13:39:44,547 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 13:39:44,547 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 13:39:44,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:39:44,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 13:39:44,761 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 13:39:44,761 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 13:39:44,761 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 13:39:44,761 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 13:39:44,761 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 13:39:44,762 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 13:39:44,762 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 26) the Hoare annotation is: true [2020-09-25 13:39:44,762 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 26) no Hoare annotation was computed. [2020-09-25 13:39:44,762 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (let ((.cse3 (+ (* 2 main_~i~0) (* 4294967296 (div main_~j~0 4294967296)))) (.cse2 (+ main_~j~0 (* 4294967296 (div (* main_~i~0 2) 4294967296)))) (.cse1 (+ (* 3 main_~i~0) (* 4294967296 (div main_~k~0 4294967296)))) (.cse0 (+ (* 4294967296 (div (* main_~i~0 3) 4294967296)) main_~k~0))) (and (<= .cse0 .cse1) (<= .cse2 .cse3) (<= .cse3 .cse2) (<= .cse1 .cse0))) [2020-09-25 13:39:44,763 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 13:39:44,763 INFO L264 CegarLoopResult]: At program point L23-1(lines 19 24) the Hoare annotation is: (let ((.cse3 (+ (* 2 main_~i~0) (* 4294967296 (div main_~j~0 4294967296)))) (.cse2 (+ main_~j~0 (* 4294967296 (div (* main_~i~0 2) 4294967296)))) (.cse1 (+ (* 3 main_~i~0) (* 4294967296 (div main_~k~0 4294967296)))) (.cse0 (+ (* 4294967296 (div (* main_~i~0 3) 4294967296)) main_~k~0))) (and (<= .cse0 .cse1) (<= .cse2 .cse3) (<= .cse3 .cse2) (<= .cse1 .cse0))) [2020-09-25 13:39:44,763 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-25 13:39:44,763 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 13:39:44,763 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-25 13:39:44,764 INFO L268 CegarLoopResult]: For program point L19-2(lines 13 26) no Hoare annotation was computed. [2020-09-25 13:39:44,764 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 13:39:44,764 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 5 11) the Hoare annotation is: true [2020-09-25 13:39:44,764 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 5 11) no Hoare annotation was computed. [2020-09-25 13:39:44,764 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-25 13:39:44,764 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-09-25 13:39:44,765 INFO L268 CegarLoopResult]: For program point L7-2(lines 5 11) no Hoare annotation was computed. [2020-09-25 13:39:44,765 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-09-25 13:39:44,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:39:44 BoogieIcfgContainer [2020-09-25 13:39:44,789 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 13:39:44,792 INFO L168 Benchmark]: Toolchain (without parser) took 8328.80 ms. Allocated memory was 138.4 MB in the beginning and 249.0 MB in the end (delta: 110.6 MB). Free memory was 101.8 MB in the beginning and 159.4 MB in the end (delta: -57.5 MB). Peak memory consumption was 53.1 MB. Max. memory is 7.1 GB. [2020-09-25 13:39:44,793 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 13:39:44,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.38 ms. Allocated memory is still 138.4 MB. Free memory was 101.2 MB in the beginning and 91.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-09-25 13:39:44,796 INFO L168 Benchmark]: Boogie Preprocessor took 111.72 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 91.9 MB in the beginning and 180.8 MB in the end (delta: -88.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2020-09-25 13:39:44,797 INFO L168 Benchmark]: RCFGBuilder took 287.72 ms. Allocated memory is still 200.8 MB. Free memory was 180.8 MB in the beginning and 168.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-09-25 13:39:44,798 INFO L168 Benchmark]: TraceAbstraction took 7619.51 ms. Allocated memory was 200.8 MB in the beginning and 249.0 MB in the end (delta: 48.2 MB). Free memory was 167.4 MB in the beginning and 159.4 MB in the end (delta: 8.1 MB). Peak memory consumption was 56.3 MB. Max. memory is 7.1 GB. [2020-09-25 13:39:44,802 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 296.38 ms. Allocated memory is still 138.4 MB. Free memory was 101.2 MB in the beginning and 91.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.72 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 91.9 MB in the beginning and 180.8 MB in the end (delta: -88.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 287.72 ms. Allocated memory is still 200.8 MB. Free memory was 180.8 MB in the beginning and 168.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7619.51 ms. Allocated memory was 200.8 MB in the beginning and 249.0 MB in the end (delta: 48.2 MB). Free memory was 167.4 MB in the beginning and 159.4 MB in the end (delta: 8.1 MB). Peak memory consumption was 56.3 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: 19]: Loop Invariant Derived loop invariant: ((4294967296 * (i * 3 / 4294967296) + k <= 3 * i + 4294967296 * (k / 4294967296) && j + 4294967296 * (i * 2 / 4294967296) <= 2 * i + 4294967296 * (j / 4294967296)) && 2 * i + 4294967296 * (j / 4294967296) <= j + 4294967296 * (i * 2 / 4294967296)) && 3 * i + 4294967296 * (k / 4294967296) <= 4294967296 * (i * 3 / 4294967296) + k - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.3s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 30 SDtfs, 18 SDslu, 137 SDs, 0 SdLazy, 142 SolverSat, 3 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 159 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 122 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 13443 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 6/7 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...