/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --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 0.1.25-177f698 [2020-08-21 18:16:18,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 18:16:18,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 18:16:18,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 18:16:18,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 18:16:18,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 18:16:18,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 18:16:18,598 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 18:16:18,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 18:16:18,601 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 18:16:18,602 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 18:16:18,603 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 18:16:18,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 18:16:18,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 18:16:18,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 18:16:18,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 18:16:18,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 18:16:18,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 18:16:18,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 18:16:18,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 18:16:18,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 18:16:18,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 18:16:18,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 18:16:18,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 18:16:18,619 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 18:16:18,619 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 18:16:18,619 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 18:16:18,620 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 18:16:18,621 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 18:16:18,622 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 18:16:18,622 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 18:16:18,623 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 18:16:18,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 18:16:18,624 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 18:16:18,625 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 18:16:18,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 18:16:18,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 18:16:18,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 18:16:18,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 18:16:18,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 18:16:18,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 18:16:18,629 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 [2020-08-21 18:16:18,661 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 18:16:18,662 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 18:16:18,663 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 18:16:18,663 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 18:16:18,663 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 18:16:18,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 18:16:18,664 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 18:16:18,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 18:16:18,664 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 18:16:18,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 18:16:18,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 18:16:18,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 18:16:18,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 18:16:18,665 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 18:16:18,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 18:16:18,666 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 18:16:18,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 18:16:18,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 18:16:18,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 18:16:18,666 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 18:16:18,667 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 18:16:18,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 18:16:18,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 18:16:18,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 18:16:18,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 18:16:18,668 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 18:16:18,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 18:16:18,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 18:16:18,668 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 18:16:18,669 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-08-21 18:16:19,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 18:16:19,018 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 18:16:19,023 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 18:16:19,024 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 18:16:19,025 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 18:16:19,026 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_vardep_2.c [2020-08-21 18:16:19,086 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf00114d1/fd71b399b29543ae856a08cb7fb52b16/FLAG16efc7baf [2020-08-21 18:16:19,529 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 18:16:19,529 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-crafted/simple_vardep_2.c [2020-08-21 18:16:19,535 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf00114d1/fd71b399b29543ae856a08cb7fb52b16/FLAG16efc7baf [2020-08-21 18:16:19,955 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf00114d1/fd71b399b29543ae856a08cb7fb52b16 [2020-08-21 18:16:19,965 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 18:16:19,967 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 18:16:19,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 18:16:19,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 18:16:19,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 18:16:19,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 06:16:19" (1/1) ... [2020-08-21 18:16:19,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dccfc7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:16:19, skipping insertion in model container [2020-08-21 18:16:19,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 06:16:19" (1/1) ... [2020-08-21 18:16:19,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 18:16:20,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 18:16:20,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 18:16:20,222 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 18:16:20,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 18:16:20,254 INFO L208 MainTranslator]: Completed translation [2020-08-21 18:16:20,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:16:20 WrapperNode [2020-08-21 18:16:20,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 18:16:20,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 18:16:20,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 18:16:20,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 18:16:20,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:16:20" (1/1) ... [2020-08-21 18:16:20,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:16:20" (1/1) ... [2020-08-21 18:16:20,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:16:20" (1/1) ... [2020-08-21 18:16:20,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:16:20" (1/1) ... [2020-08-21 18:16:20,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:16:20" (1/1) ... [2020-08-21 18:16:20,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:16:20" (1/1) ... [2020-08-21 18:16:20,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:16:20" (1/1) ... [2020-08-21 18:16:20,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 18:16:20,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 18:16:20,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 18:16:20,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 18:16:20,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:16:20" (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 [2020-08-21 18:16:20,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 18:16:20,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 18:16:20,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-21 18:16:20,447 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 18:16:20,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 18:16:20,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-21 18:16:20,447 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 18:16:20,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 18:16:20,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 18:16:20,621 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 18:16:20,621 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 18:16:20,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 06:16:20 BoogieIcfgContainer [2020-08-21 18:16:20,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 18:16:20,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 18:16:20,627 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 18:16:20,630 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 18:16:20,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 06:16:19" (1/3) ... [2020-08-21 18:16:20,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b06f6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 06:16:20, skipping insertion in model container [2020-08-21 18:16:20,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:16:20" (2/3) ... [2020-08-21 18:16:20,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b06f6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 06:16:20, skipping insertion in model container [2020-08-21 18:16:20,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 06:16:20" (3/3) ... [2020-08-21 18:16:20,634 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_vardep_2.c [2020-08-21 18:16:20,644 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 18:16:20,652 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 18:16:20,667 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 18:16:20,689 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 18:16:20,689 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 18:16:20,689 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 18:16:20,689 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 18:16:20,689 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 18:16:20,690 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 18:16:20,690 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 18:16:20,690 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 18:16:20,706 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-08-21 18:16:20,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-08-21 18:16:20,711 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:16:20,712 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 18:16:20,712 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:16:20,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:16:20,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1847991872, now seen corresponding path program 1 times [2020-08-21 18:16:20,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:16:20,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1647538509] [2020-08-21 18:16:20,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:16:20,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:16:21,177 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-08-21 18:16:21,464 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 35 [2020-08-21 18:16:21,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:16:21,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:16:21,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 18:16:21,509 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1647538509] [2020-08-21 18:16:21,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:16:21,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 18:16:21,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505694992] [2020-08-21 18:16:21,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 18:16:21,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:16:21,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 18:16:21,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 18:16:21,536 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 6 states. [2020-08-21 18:16:21,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:16:21,608 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2020-08-21 18:16:21,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 18:16:21,610 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-08-21 18:16:21,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:16:21,618 INFO L225 Difference]: With dead ends: 27 [2020-08-21 18:16:21,619 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 18:16:21,623 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 18:16:21,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 18:16:21,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 18:16:21,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 18:16:21,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 18:16:21,654 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-08-21 18:16:21,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:16:21,654 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 18:16:21,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 18:16:21,655 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 18:16:21,655 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 18:16:21,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 18:16:21,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 18:16:21,709 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-21 18:16:21,710 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 18:16:21,710 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 18:16:21,710 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-21 18:16:21,710 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 18:16:21,711 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 18:16:21,711 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 26) the Hoare annotation is: true [2020-08-21 18:16:21,711 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 26) no Hoare annotation was computed. [2020-08-21 18:16:21,712 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (let ((.cse0 (* 2 main_~i~0)) (.cse1 (* 3 main_~i~0))) (and (<= .cse0 main_~j~0) (<= main_~j~0 .cse0) (<= .cse1 main_~k~0) (<= main_~k~0 .cse1))) [2020-08-21 18:16:21,712 INFO L264 CegarLoopResult]: At program point L23-1(lines 19 24) the Hoare annotation is: (let ((.cse0 (* 2 main_~i~0)) (.cse1 (* 3 main_~i~0))) (and (<= .cse0 main_~j~0) (<= main_~j~0 .cse0) (<= .cse1 main_~k~0) (<= main_~k~0 .cse1))) [2020-08-21 18:16:21,712 INFO L268 CegarLoopResult]: For program point L19-2(lines 13 26) no Hoare annotation was computed. [2020-08-21 18:16:21,713 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 5 11) the Hoare annotation is: true [2020-08-21 18:16:21,713 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 5 11) no Hoare annotation was computed. [2020-08-21 18:16:21,713 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-08-21 18:16:21,713 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-08-21 18:16:21,713 INFO L268 CegarLoopResult]: For program point L7-2(lines 5 11) no Hoare annotation was computed. [2020-08-21 18:16:21,714 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-08-21 18:16:21,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 06:16:21 BoogieIcfgContainer [2020-08-21 18:16:21,734 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 18:16:21,736 INFO L168 Benchmark]: Toolchain (without parser) took 1769.00 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 101.2 MB in the beginning and 119.1 MB in the end (delta: -17.8 MB). Peak memory consumption was 44.5 MB. Max. memory is 7.1 GB. [2020-08-21 18:16:21,740 INFO L168 Benchmark]: CDTParser took 0.21 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. [2020-08-21 18:16:21,741 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.75 ms. Allocated memory is still 138.4 MB. Free memory was 101.0 MB in the beginning and 91.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-08-21 18:16:21,743 INFO L168 Benchmark]: Boogie Preprocessor took 118.38 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 91.5 MB in the beginning and 179.8 MB in the end (delta: -88.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2020-08-21 18:16:21,744 INFO L168 Benchmark]: RCFGBuilder took 250.38 ms. Allocated memory is still 200.8 MB. Free memory was 179.8 MB in the beginning and 168.4 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2020-08-21 18:16:21,745 INFO L168 Benchmark]: TraceAbstraction took 1107.31 ms. Allocated memory is still 200.8 MB. Free memory was 167.7 MB in the beginning and 119.1 MB in the end (delta: 48.6 MB). Peak memory consumption was 48.6 MB. Max. memory is 7.1 GB. [2020-08-21 18:16:21,749 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 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 287.75 ms. Allocated memory is still 138.4 MB. Free memory was 101.0 MB in the beginning and 91.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.38 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 91.5 MB in the beginning and 179.8 MB in the end (delta: -88.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 250.38 ms. Allocated memory is still 200.8 MB. Free memory was 179.8 MB in the beginning and 168.4 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1107.31 ms. Allocated memory is still 200.8 MB. Free memory was 167.7 MB in the beginning and 119.1 MB in the end (delta: 48.6 MB). Peak memory consumption was 48.6 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: ((2 * i <= j && j <= 2 * i) && 3 * i <= k) && k <= 3 * i - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 7 SDslu, 33 SDs, 0 SdLazy, 15 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 10 NumberOfFragments, 47 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 1143 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...