./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/just_assert.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-regression/just_assert.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ff66b083d022919cb3a5ea434b115d71e7ae4f36 ......................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:52:55,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:52:55,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:52:55,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:52:55,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:52:55,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:52:55,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:52:55,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:52:55,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:52:55,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:52:55,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:52:55,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:52:55,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:52:55,688 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:52:55,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:52:55,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:52:55,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:52:55,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:52:55,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:52:55,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:52:55,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:52:55,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:52:55,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:52:55,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:52:55,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:52:55,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:52:55,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:52:55,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:52:55,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:52:55,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:52:55,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:52:55,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:52:55,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:52:55,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:52:55,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:52:55,728 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:52:55,729 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:52:55,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:52:55,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:52:55,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:52:55,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:52:55,733 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 23:52:55,768 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:52:55,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:52:55,770 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:52:55,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:52:55,774 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:52:55,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:52:55,774 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:52:55,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 23:52:55,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:52:55,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:52:55,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:52:55,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:52:55,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:52:55,777 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:52:55,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:52:55,778 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:52:55,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:52:55,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:52:55,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:52:55,779 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:52:55,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:52:55,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:52:55,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:52:55,781 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:52:55,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:52:55,781 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 23:52:55,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 23:52:55,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:52:55,782 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff66b083d022919cb3a5ea434b115d71e7ae4f36 [2019-11-27 23:52:56,110 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:52:56,125 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:52:56,129 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:52:56,131 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:52:56,131 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:52:56,132 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/just_assert.i [2019-11-27 23:52:56,210 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef8542662/2f587d75a83a4fbd8eac0ad885f41365/FLAGe4d73648a [2019-11-27 23:52:56,657 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:52:56,658 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/just_assert.i [2019-11-27 23:52:56,663 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef8542662/2f587d75a83a4fbd8eac0ad885f41365/FLAGe4d73648a [2019-11-27 23:52:57,040 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef8542662/2f587d75a83a4fbd8eac0ad885f41365 [2019-11-27 23:52:57,044 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:52:57,045 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:52:57,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:52:57,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:52:57,050 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:52:57,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:52:57" (1/1) ... [2019-11-27 23:52:57,055 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f305c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:57, skipping insertion in model container [2019-11-27 23:52:57,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:52:57" (1/1) ... [2019-11-27 23:52:57,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:52:57,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:52:57,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:52:57,269 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:52:57,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:52:57,300 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:52:57,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:57 WrapperNode [2019-11-27 23:52:57,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:52:57,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:52:57,302 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:52:57,303 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:52:57,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:57" (1/1) ... [2019-11-27 23:52:57,319 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:57" (1/1) ... [2019-11-27 23:52:57,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:52:57,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:52:57,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:52:57,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:52:57,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:57" (1/1) ... [2019-11-27 23:52:57,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:57" (1/1) ... [2019-11-27 23:52:57,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:57" (1/1) ... [2019-11-27 23:52:57,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:57" (1/1) ... [2019-11-27 23:52:57,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:57" (1/1) ... [2019-11-27 23:52:57,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:57" (1/1) ... [2019-11-27 23:52:57,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:57" (1/1) ... [2019-11-27 23:52:57,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:52:57,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:52:57,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:52:57,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:52:57,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2019-11-27 23:52:57,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:52:57,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:52:57,596 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:52:57,596 INFO L297 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-27 23:52:57,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:52:57 BoogieIcfgContainer [2019-11-27 23:52:57,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:52:57,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:52:57,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:52:57,606 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:52:57,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:52:57" (1/3) ... [2019-11-27 23:52:57,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b8699a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:52:57, skipping insertion in model container [2019-11-27 23:52:57,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:57" (2/3) ... [2019-11-27 23:52:57,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b8699a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:52:57, skipping insertion in model container [2019-11-27 23:52:57,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:52:57" (3/3) ... [2019-11-27 23:52:57,620 INFO L109 eAbstractionObserver]: Analyzing ICFG just_assert.i [2019-11-27 23:52:57,630 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:52:57,635 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:52:57,648 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:52:57,674 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:52:57,674 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:52:57,675 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:52:57,675 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:52:57,675 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:52:57,675 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:52:57,675 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:52:57,676 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:52:57,693 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-11-27 23:52:57,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-27 23:52:57,698 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:52:57,699 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-27 23:52:57,700 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:52:57,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:52:57,706 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-11-27 23:52:57,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:52:57,714 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010299674] [2019-11-27 23:52:57,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:52:57,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:52:57,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:52:57,809 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010299674] [2019-11-27 23:52:57,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:52:57,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-27 23:52:57,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364772533] [2019-11-27 23:52:57,816 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 23:52:57,816 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:52:57,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 23:52:57,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:52:57,829 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 2 states. [2019-11-27 23:52:57,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:52:57,847 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2019-11-27 23:52:57,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 23:52:57,849 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 3 [2019-11-27 23:52:57,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:52:57,857 INFO L225 Difference]: With dead ends: 12 [2019-11-27 23:52:57,857 INFO L226 Difference]: Without dead ends: 0 [2019-11-27 23:52:57,862 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:52:57,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-27 23:52:57,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-27 23:52:57,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-27 23:52:57,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-27 23:52:57,890 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-11-27 23:52:57,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:52:57,891 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-27 23:52:57,891 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 23:52:57,891 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-27 23:52:57,891 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-27 23:52:57,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-27 23:52:57,913 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-27 23:52:57,913 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-27 23:52:57,914 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-27 23:52:57,914 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-11-27 23:52:57,915 INFO L249 CegarLoopResult]: At program point L10(lines 5 11) the Hoare annotation is: true [2019-11-27 23:52:57,915 INFO L246 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2019-11-27 23:52:57,915 INFO L246 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2019-11-27 23:52:57,915 INFO L246 CegarLoopResult]: For program point L7-2(lines 7 9) no Hoare annotation was computed. [2019-11-27 23:52:57,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:52:57 BoogieIcfgContainer [2019-11-27 23:52:57,926 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:52:57,927 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:52:57,927 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:52:57,927 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:52:57,928 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:52:57" (3/4) ... [2019-11-27 23:52:57,932 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-27 23:52:57,946 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-27 23:52:57,946 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-27 23:52:58,009 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 23:52:58,009 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:52:58,014 INFO L168 Benchmark]: Toolchain (without parser) took 966.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -131.3 MB). Peak memory consumption was 2.9 MB. Max. memory is 11.5 GB. [2019-11-27 23:52:58,017 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:52:58,019 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.17 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:52:58,020 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.02 ms. Allocated memory is still 1.0 GB. Free memory is still 944.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:52:58,026 INFO L168 Benchmark]: Boogie Preprocessor took 76.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -186.4 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:52:58,027 INFO L168 Benchmark]: RCFGBuilder took 176.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:52:58,028 INFO L168 Benchmark]: TraceAbstraction took 324.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2019-11-27 23:52:58,028 INFO L168 Benchmark]: Witness Printer took 82.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:52:58,041 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 255.17 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.02 ms. Allocated memory is still 1.0 GB. Free memory is still 944.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 76.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -186.4 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 176.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 324.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * Witness Printer took 82.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 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: 5]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: SAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...