/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --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 04:35:20,875 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:35:20,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:35:20,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:35:20,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:35:20,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:35:20,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:35:20,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:35:20,951 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:35:20,954 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:35:20,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:35:20,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:35:20,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:35:20,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:35:20,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:35:20,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:35:20,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:35:20,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:35:20,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:35:20,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:35:20,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:35:20,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:35:20,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:35:20,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:35:20,997 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:35:20,997 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:35:20,997 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:35:21,004 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:35:21,004 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:35:21,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:35:21,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:35:21,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:35:21,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:35:21,011 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:35:21,012 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:35:21,016 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:35:21,017 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:35:21,017 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:35:21,017 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:35:21,018 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:35:21,019 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:35:21,021 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 04:35:21,067 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:35:21,067 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:35:21,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:35:21,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:35:21,070 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:35:21,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:35:21,071 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:35:21,071 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:35:21,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:35:21,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:35:21,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:35:21,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:35:21,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:35:21,073 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:35:21,073 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:35:21,074 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:35:21,074 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:35:21,074 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:35:21,074 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:35:21,075 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:35:21,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:35:21,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:35:21,075 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:35:21,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:35:21,076 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:35:21,076 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:35:21,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:35:21,076 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:35:21,077 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:35:21,077 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:35:21,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:35:21,567 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:35:21,572 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:35:21,573 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:35:21,574 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:35:21,575 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_vardep_2.c [2020-09-25 04:35:21,655 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5673319b2/0a69251156f940bc86b0e56ebf89708c/FLAGf134cffad [2020-09-25 04:35:22,180 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:35:22,181 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-crafted/simple_vardep_2.c [2020-09-25 04:35:22,189 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5673319b2/0a69251156f940bc86b0e56ebf89708c/FLAGf134cffad [2020-09-25 04:35:22,534 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5673319b2/0a69251156f940bc86b0e56ebf89708c [2020-09-25 04:35:22,549 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:35:22,557 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:35:22,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:35:22,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:35:22,563 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:35:22,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:35:22" (1/1) ... [2020-09-25 04:35:22,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76095f59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:22, skipping insertion in model container [2020-09-25 04:35:22,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:35:22" (1/1) ... [2020-09-25 04:35:22,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:35:22,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:35:22,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:35:22,882 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:35:22,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:35:22,915 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:35:22,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:22 WrapperNode [2020-09-25 04:35:22,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:35:22,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:35:22,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:35:22,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:35:22,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:22" (1/1) ... [2020-09-25 04:35:22,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:22" (1/1) ... [2020-09-25 04:35:22,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:22" (1/1) ... [2020-09-25 04:35:22,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:22" (1/1) ... [2020-09-25 04:35:22,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:22" (1/1) ... [2020-09-25 04:35:22,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:22" (1/1) ... [2020-09-25 04:35:22,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:22" (1/1) ... [2020-09-25 04:35:23,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:35:23,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:35:23,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:35:23,029 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:35:23,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:22" (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 04:35:23,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:35:23,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:35:23,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 04:35:23,108 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:35:23,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:35:23,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 04:35:23,108 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:35:23,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:35:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:35:23,305 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:35:23,306 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 04:35:23,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:35:23 BoogieIcfgContainer [2020-09-25 04:35:23,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:35:23,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:35:23,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:35:23,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:35:23,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:35:22" (1/3) ... [2020-09-25 04:35:23,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b78c811 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:35:23, skipping insertion in model container [2020-09-25 04:35:23,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:22" (2/3) ... [2020-09-25 04:35:23,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b78c811 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:35:23, skipping insertion in model container [2020-09-25 04:35:23,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:35:23" (3/3) ... [2020-09-25 04:35:23,322 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_vardep_2.c [2020-09-25 04:35:23,335 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:35:23,346 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:35:23,372 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:35:23,417 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:35:23,417 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:35:23,417 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:35:23,417 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:35:23,418 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:35:23,418 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:35:23,418 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:35:23,418 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:35:23,446 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-09-25 04:35:23,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-25 04:35:23,455 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:23,456 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:35:23,457 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:23,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:23,467 INFO L82 PathProgramCache]: Analyzing trace with hash -420526341, now seen corresponding path program 1 times [2020-09-25 04:35:23,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:23,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1638070023] [2020-09-25 04:35:23,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:23,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:23,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:24,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:24,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 04:35:24,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:24,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 374 [2020-09-25 04:35:24,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:24,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:35:24,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:35:24,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 04:35:24,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:35:24,666 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 35 [2020-09-25 04:35:24,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:24,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:24,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:24,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:35:24,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:24,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:35:24,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:24,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:24,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:24,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:24,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:24,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:24,722 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 04:35:24,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1638070023] [2020-09-25 04:35:24,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:24,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 04:35:24,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44063570] [2020-09-25 04:35:24,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:35:24,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:24,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:35:24,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:35:24,757 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 10 states. [2020-09-25 04:35:25,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:25,006 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2020-09-25 04:35:25,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 04:35:25,008 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-09-25 04:35:25,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:25,018 INFO L225 Difference]: With dead ends: 50 [2020-09-25 04:35:25,018 INFO L226 Difference]: Without dead ends: 29 [2020-09-25 04:35:25,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-09-25 04:35:25,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-09-25 04:35:25,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2020-09-25 04:35:25,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-09-25 04:35:25,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2020-09-25 04:35:25,069 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 15 [2020-09-25 04:35:25,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:25,069 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2020-09-25 04:35:25,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:35:25,070 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2020-09-25 04:35:25,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-25 04:35:25,071 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:25,071 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 04:35:25,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:35:25,072 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:25,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:25,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1780540834, now seen corresponding path program 1 times [2020-09-25 04:35:25,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:25,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2047942009] [2020-09-25 04:35:25,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:25,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:25,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:25,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:26,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:26,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 04:35:26,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:35:26,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1815 [2020-09-25 04:35:26,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:26,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:26,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:35:26,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 04:35:26,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:35:26,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:35:27,451 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 40 [2020-09-25 04:35:27,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:27,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:27,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:27,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:27,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:35:27,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:27,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:35:27,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:27,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:27,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:27,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:27,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:27,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:27,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 04:35:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:27,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:27,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:27,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:27,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:27,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 04:35:27,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:27,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:27,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:35:27,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:27,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:35:27,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:27,608 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 04:35:27,609 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2047942009] [2020-09-25 04:35:27,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:35:27,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 04:35:27,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032586770] [2020-09-25 04:35:27,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:35:27,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:27,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:35:27,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:35:27,613 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 8 states. [2020-09-25 04:35:30,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:30,420 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2020-09-25 04:35:30,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 04:35:30,421 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2020-09-25 04:35:30,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:30,422 INFO L225 Difference]: With dead ends: 27 [2020-09-25 04:35:30,423 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 04:35:30,424 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 04:35:30,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 04:35:30,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 04:35:30,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 04:35:30,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 04:35:30,425 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2020-09-25 04:35:30,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:30,426 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 04:35:30,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:35:30,426 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 04:35:30,426 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 04:35:30,426 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:35:30,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 04:35:30,622 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 04:35:30,623 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 04:35:30,623 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 04:35:30,623 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 04:35:30,623 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 04:35:30,623 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 04:35:30,624 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 26) the Hoare annotation is: true [2020-09-25 04:35:30,624 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 26) no Hoare annotation was computed. [2020-09-25 04:35:30,624 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 04:35:30,624 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 04:35:30,625 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 04:35:30,625 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-25 04:35:30,625 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 04:35:30,625 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-25 04:35:30,625 INFO L268 CegarLoopResult]: For program point L19-2(lines 13 26) no Hoare annotation was computed. [2020-09-25 04:35:30,626 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 04:35:30,626 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 5 11) the Hoare annotation is: true [2020-09-25 04:35:30,626 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 5 11) no Hoare annotation was computed. [2020-09-25 04:35:30,626 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-25 04:35:30,626 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-09-25 04:35:30,626 INFO L268 CegarLoopResult]: For program point L7-2(lines 5 11) no Hoare annotation was computed. [2020-09-25 04:35:30,627 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-09-25 04:35:30,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 04:35:30 BoogieIcfgContainer [2020-09-25 04:35:30,650 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 04:35:30,653 INFO L168 Benchmark]: Toolchain (without parser) took 8102.28 ms. Allocated memory was 142.6 MB in the beginning and 243.8 MB in the end (delta: 101.2 MB). Free memory was 105.8 MB in the beginning and 121.7 MB in the end (delta: -15.8 MB). Peak memory consumption was 85.4 MB. Max. memory is 7.1 GB. [2020-09-25 04:35:30,654 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 142.6 MB. Free memory was 124.1 MB in the beginning and 123.7 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-09-25 04:35:30,655 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.37 ms. Allocated memory is still 142.6 MB. Free memory was 105.4 MB in the beginning and 96.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-09-25 04:35:30,656 INFO L168 Benchmark]: Boogie Preprocessor took 111.41 ms. Allocated memory was 142.6 MB in the beginning and 204.5 MB in the end (delta: 61.9 MB). Free memory was 96.1 MB in the beginning and 184.2 MB in the end (delta: -88.1 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2020-09-25 04:35:30,657 INFO L168 Benchmark]: RCFGBuilder took 283.01 ms. Allocated memory is still 204.5 MB. Free memory was 184.2 MB in the beginning and 172.2 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2020-09-25 04:35:30,659 INFO L168 Benchmark]: TraceAbstraction took 7337.62 ms. Allocated memory was 204.5 MB in the beginning and 243.8 MB in the end (delta: 39.3 MB). Free memory was 171.3 MB in the beginning and 121.7 MB in the end (delta: 49.7 MB). Peak memory consumption was 89.0 MB. Max. memory is 7.1 GB. [2020-09-25 04:35:30,663 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 142.6 MB. Free memory was 124.1 MB in the beginning and 123.7 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 358.37 ms. Allocated memory is still 142.6 MB. Free memory was 105.4 MB in the beginning and 96.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.41 ms. Allocated memory was 142.6 MB in the beginning and 204.5 MB in the end (delta: 61.9 MB). Free memory was 96.1 MB in the beginning and 184.2 MB in the end (delta: -88.1 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 283.01 ms. Allocated memory is still 204.5 MB. Free memory was 184.2 MB in the beginning and 172.2 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7337.62 ms. Allocated memory was 204.5 MB in the beginning and 243.8 MB in the end (delta: 39.3 MB). Free memory was 171.3 MB in the beginning and 121.7 MB in the end (delta: 49.7 MB). Peak memory consumption was 89.0 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: 7.0s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, 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, 3.5s 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...