/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/just_assert.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 12:23:12,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 12:23:12,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 12:23:12,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 12:23:12,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 12:23:12,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 12:23:12,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 12:23:12,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 12:23:12,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 12:23:12,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 12:23:12,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 12:23:12,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 12:23:12,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 12:23:12,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 12:23:12,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 12:23:12,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 12:23:12,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 12:23:12,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 12:23:12,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 12:23:12,853 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 12:23:12,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 12:23:12,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 12:23:12,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 12:23:12,864 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 12:23:12,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-08 12:23:12,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 12:23:12,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 12:23:12,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 12:23:12,882 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-08 12:23:12,917 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 12:23:12,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 12:23:12,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-08 12:23:12,922 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-08 12:23:12,922 INFO L138 SettingsManager]: * Use SBE=true [2020-07-08 12:23:12,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 12:23:12,923 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 12:23:12,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 12:23:12,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 12:23:12,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 12:23:12,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 12:23:12,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 12:23:12,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 12:23:12,924 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 12:23:12,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 12:23:12,927 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 12:23:12,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 12:23:12,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 12:23:12,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-08 12:23:12,928 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 12:23:12,928 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 12:23:12,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 12:23:12,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 12:23:12,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-08 12:23:12,930 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-08 12:23:12,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-08 12:23:12,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-08 12:23:12,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 12:23:12,931 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-08 12:23:12,931 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-08 12:23:13,231 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 12:23:13,244 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 12:23:13,247 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 12:23:13,249 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 12:23:13,249 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 12:23:13,250 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/just_assert.i [2020-07-08 12:23:13,306 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a8e3197e/9d7781b23c12472ba6d3a825e4ccdfbe/FLAGed5497695 [2020-07-08 12:23:13,699 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 12:23:13,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/just_assert.i [2020-07-08 12:23:13,704 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a8e3197e/9d7781b23c12472ba6d3a825e4ccdfbe/FLAGed5497695 [2020-07-08 12:23:14,138 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a8e3197e/9d7781b23c12472ba6d3a825e4ccdfbe [2020-07-08 12:23:14,146 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 12:23:14,147 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 12:23:14,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 12:23:14,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 12:23:14,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 12:23:14,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 12:23:14" (1/1) ... [2020-07-08 12:23:14,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d5012d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:23:14, skipping insertion in model container [2020-07-08 12:23:14,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 12:23:14" (1/1) ... [2020-07-08 12:23:14,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 12:23:14,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 12:23:14,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 12:23:14,326 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 12:23:14,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 12:23:14,351 INFO L208 MainTranslator]: Completed translation [2020-07-08 12:23:14,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:23:14 WrapperNode [2020-07-08 12:23:14,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 12:23:14,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 12:23:14,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 12:23:14,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 12:23:14,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:23:14" (1/1) ... [2020-07-08 12:23:14,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:23:14" (1/1) ... [2020-07-08 12:23:14,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:23:14" (1/1) ... [2020-07-08 12:23:14,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:23:14" (1/1) ... [2020-07-08 12:23:14,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:23:14" (1/1) ... [2020-07-08 12:23:14,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:23:14" (1/1) ... [2020-07-08 12:23:14,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:23:14" (1/1) ... [2020-07-08 12:23:14,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 12:23:14,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 12:23:14,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 12:23:14,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 12:23:14,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:23:14" (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 [2020-07-08 12:23:14,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 12:23:14,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 12:23:14,563 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 12:23:14,563 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 12:23:14,563 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 12:23:14,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 12:23:14,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 12:23:14,737 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 12:23:14,738 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-08 12:23:14,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 12:23:14 BoogieIcfgContainer [2020-07-08 12:23:14,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 12:23:14,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 12:23:14,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 12:23:14,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 12:23:14,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 12:23:14" (1/3) ... [2020-07-08 12:23:14,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a99f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 12:23:14, skipping insertion in model container [2020-07-08 12:23:14,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:23:14" (2/3) ... [2020-07-08 12:23:14,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a99f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 12:23:14, skipping insertion in model container [2020-07-08 12:23:14,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 12:23:14" (3/3) ... [2020-07-08 12:23:14,756 INFO L109 eAbstractionObserver]: Analyzing ICFG just_assert.i [2020-07-08 12:23:14,768 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-08 12:23:14,777 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 12:23:14,794 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 12:23:14,818 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 12:23:14,818 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 12:23:14,818 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-08 12:23:14,818 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 12:23:14,818 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 12:23:14,819 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 12:23:14,819 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 12:23:14,819 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 12:23:14,836 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-07-08 12:23:14,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-07-08 12:23:14,842 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 12:23:14,843 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-07-08 12:23:14,844 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 12:23:14,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 12:23:14,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1317434133, now seen corresponding path program 1 times [2020-07-08 12:23:14,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 12:23:14,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285236358] [2020-07-08 12:23:14,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 12:23:14,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:23:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:23:14,992 INFO L280 TraceCheckUtils]: 0: Hoare triple {15#true} assume true; {15#true} is VALID [2020-07-08 12:23:14,993 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {15#true} {15#true} #16#return; {15#true} is VALID [2020-07-08 12:23:14,996 INFO L263 TraceCheckUtils]: 0: Hoare triple {15#true} call ULTIMATE.init(); {15#true} is VALID [2020-07-08 12:23:14,997 INFO L280 TraceCheckUtils]: 1: Hoare triple {15#true} assume true; {15#true} is VALID [2020-07-08 12:23:14,997 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {15#true} {15#true} #16#return; {15#true} is VALID [2020-07-08 12:23:14,998 INFO L263 TraceCheckUtils]: 3: Hoare triple {15#true} call #t~ret0 := main(); {15#true} is VALID [2020-07-08 12:23:14,999 INFO L280 TraceCheckUtils]: 4: Hoare triple {15#true} assume false; {16#false} is VALID [2020-07-08 12:23:15,000 INFO L280 TraceCheckUtils]: 5: Hoare triple {16#false} assume !false; {16#false} is VALID [2020-07-08 12:23:15,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 12:23:15,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285236358] [2020-07-08 12:23:15,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 12:23:15,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-08 12:23:15,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870072093] [2020-07-08 12:23:15,010 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-07-08 12:23:15,013 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 12:23:15,017 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-08 12:23:15,035 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:23:15,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-08 12:23:15,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-08 12:23:15,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-08 12:23:15,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-08 12:23:15,053 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2020-07-08 12:23:15,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:23:15,105 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2020-07-08 12:23:15,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-08 12:23:15,105 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-07-08 12:23:15,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 12:23:15,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-08 12:23:15,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 16 transitions. [2020-07-08 12:23:15,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-08 12:23:15,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 16 transitions. [2020-07-08 12:23:15,126 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 16 transitions. [2020-07-08 12:23:15,169 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:23:15,177 INFO L225 Difference]: With dead ends: 17 [2020-07-08 12:23:15,177 INFO L226 Difference]: Without dead ends: 0 [2020-07-08 12:23:15,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-08 12:23:15,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-08 12:23:15,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-08 12:23:15,228 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 12:23:15,229 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-08 12:23:15,229 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-08 12:23:15,229 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-08 12:23:15,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:23:15,235 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-08 12:23:15,235 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 12:23:15,235 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:23:15,236 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:23:15,236 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-08 12:23:15,236 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-08 12:23:15,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:23:15,237 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-08 12:23:15,237 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 12:23:15,237 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:23:15,238 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:23:15,238 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 12:23:15,238 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 12:23:15,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-08 12:23:15,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-08 12:23:15,240 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2020-07-08 12:23:15,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 12:23:15,240 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-08 12:23:15,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-08 12:23:15,241 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 12:23:15,241 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:23:15,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 12:23:15,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-08 12:23:15,282 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-08 12:23:15,282 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-08 12:23:15,282 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-08 12:23:15,282 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-08 12:23:15,283 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-08 12:23:15,283 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-08 12:23:15,283 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-08 12:23:15,284 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 5 11) the Hoare annotation is: true [2020-07-08 12:23:15,284 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 5 11) no Hoare annotation was computed. [2020-07-08 12:23:15,284 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 5 11) no Hoare annotation was computed. [2020-07-08 12:23:15,284 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-07-08 12:23:15,284 INFO L268 CegarLoopResult]: For program point L7-1(lines 7 9) no Hoare annotation was computed. [2020-07-08 12:23:15,289 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-08 12:23:15,290 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-08 12:23:15,290 WARN L170 areAnnotationChecker]: L7-1 has no Hoare annotation [2020-07-08 12:23:15,290 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-08 12:23:15,290 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-08 12:23:15,291 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-08 12:23:15,291 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-08 12:23:15,291 WARN L170 areAnnotationChecker]: L7-1 has no Hoare annotation [2020-07-08 12:23:15,291 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-08 12:23:15,291 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-08 12:23:15,292 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-08 12:23:15,292 INFO L163 areAnnotationChecker]: CFG has 2 edges. 2 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-08 12:23:15,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 12:23:15 BoogieIcfgContainer [2020-07-08 12:23:15,295 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 12:23:15,299 INFO L168 Benchmark]: Toolchain (without parser) took 1150.42 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 105.0 MB in the beginning and 142.5 MB in the end (delta: -37.5 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2020-07-08 12:23:15,300 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-08 12:23:15,302 INFO L168 Benchmark]: CACSL2BoogieTranslator took 204.58 ms. Allocated memory is still 140.0 MB. Free memory was 104.8 MB in the beginning and 95.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2020-07-08 12:23:15,303 INFO L168 Benchmark]: Boogie Preprocessor took 33.30 ms. Allocated memory is still 140.0 MB. Free memory was 95.9 MB in the beginning and 94.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-07-08 12:23:15,304 INFO L168 Benchmark]: RCFGBuilder took 357.64 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 94.5 MB in the beginning and 174.3 MB in the end (delta: -79.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-07-08 12:23:15,306 INFO L168 Benchmark]: TraceAbstraction took 549.14 ms. Allocated memory is still 204.5 MB. Free memory was 173.7 MB in the beginning and 142.5 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. [2020-07-08 12:23:15,310 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 204.58 ms. Allocated memory is still 140.0 MB. Free memory was 104.8 MB in the beginning and 95.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.30 ms. Allocated memory is still 140.0 MB. Free memory was 95.9 MB in the beginning and 94.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 357.64 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 94.5 MB in the beginning and 174.3 MB in the end (delta: -79.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 549.14 ms. Allocated memory is still 204.5 MB. Free memory was 173.7 MB in the beginning and 142.5 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 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...