/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector/jain_2-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 10:45:35,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 10:45:35,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 10:45:35,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 10:45:35,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 10:45:35,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 10:45:35,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 10:45:35,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 10:45:35,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 10:45:35,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 10:45:35,706 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 10:45:35,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 10:45:35,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 10:45:35,708 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 10:45:35,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 10:45:35,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 10:45:35,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 10:45:35,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 10:45:35,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 10:45:35,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 10:45:35,717 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 10:45:35,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 10:45:35,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 10:45:35,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 10:45:35,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 10:45:35,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 10:45:35,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 10:45:35,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 10:45:35,733 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 [2020-07-20 10:45:35,747 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 10:45:35,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 10:45:35,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 10:45:35,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 10:45:35,749 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 10:45:35,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 10:45:35,750 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 10:45:35,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 10:45:35,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 10:45:35,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 10:45:35,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 10:45:35,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 10:45:35,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 10:45:35,751 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 10:45:35,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 10:45:35,751 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 10:45:35,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 10:45:35,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 10:45:35,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 10:45:35,752 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 10:45:35,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 10:45:35,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 10:45:35,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 10:45:35,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 10:45:35,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 10:45:35,753 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 10:45:35,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:45:35,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 10:45:35,754 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 10:45:35,754 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 -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-20 10:45:36,049 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 10:45:36,065 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 10:45:36,071 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 10:45:36,073 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 10:45:36,073 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 10:45:36,075 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/jain_2-1.c [2020-07-20 10:45:36,144 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8eace5ff/e1f26f73119f42b7a40fc1a3b1d5c225/FLAGb5d677e56 [2020-07-20 10:45:36,628 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 10:45:36,629 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_2-1.c [2020-07-20 10:45:36,635 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8eace5ff/e1f26f73119f42b7a40fc1a3b1d5c225/FLAGb5d677e56 [2020-07-20 10:45:37,005 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8eace5ff/e1f26f73119f42b7a40fc1a3b1d5c225 [2020-07-20 10:45:37,014 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 10:45:37,018 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 10:45:37,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 10:45:37,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 10:45:37,023 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 10:45:37,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:45:37" (1/1) ... [2020-07-20 10:45:37,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1649d608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:37, skipping insertion in model container [2020-07-20 10:45:37,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:45:37" (1/1) ... [2020-07-20 10:45:37,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 10:45:37,053 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 10:45:37,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 10:45:37,255 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 10:45:37,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 10:45:37,279 INFO L208 MainTranslator]: Completed translation [2020-07-20 10:45:37,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:37 WrapperNode [2020-07-20 10:45:37,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 10:45:37,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 10:45:37,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 10:45:37,281 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 10:45:37,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:37" (1/1) ... [2020-07-20 10:45:37,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:37" (1/1) ... [2020-07-20 10:45:37,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:37" (1/1) ... [2020-07-20 10:45:37,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:37" (1/1) ... [2020-07-20 10:45:37,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:37" (1/1) ... [2020-07-20 10:45:37,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:37" (1/1) ... [2020-07-20 10:45:37,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:37" (1/1) ... [2020-07-20 10:45:37,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 10:45:37,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 10:45:37,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 10:45:37,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 10:45:37,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:37" (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 [2020-07-20 10:45:37,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 10:45:37,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 10:45:37,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 10:45:37,466 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 10:45:37,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 10:45:37,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-07-20 10:45:37,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 10:45:37,466 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 10:45:37,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 10:45:37,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 10:45:37,634 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 10:45:37,635 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 10:45:37,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:45:37 BoogieIcfgContainer [2020-07-20 10:45:37,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 10:45:37,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 10:45:37,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 10:45:37,643 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 10:45:37,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:45:37" (1/3) ... [2020-07-20 10:45:37,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72b61b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:45:37, skipping insertion in model container [2020-07-20 10:45:37,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:37" (2/3) ... [2020-07-20 10:45:37,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72b61b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:45:37, skipping insertion in model container [2020-07-20 10:45:37,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:45:37" (3/3) ... [2020-07-20 10:45:37,646 INFO L109 eAbstractionObserver]: Analyzing ICFG jain_2-1.c [2020-07-20 10:45:37,654 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 10:45:37,661 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 10:45:37,675 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 10:45:37,700 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 10:45:37,700 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 10:45:37,700 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 10:45:37,700 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 10:45:37,700 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 10:45:37,701 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 10:45:37,701 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 10:45:37,701 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 10:45:37,720 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-07-20 10:45:37,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-20 10:45:37,727 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:45:37,728 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:45:37,728 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:45:37,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:45:37,733 INFO L82 PathProgramCache]: Analyzing trace with hash -13144129, now seen corresponding path program 1 times [2020-07-20 10:45:37,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:45:37,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874659317] [2020-07-20 10:45:37,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:45:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:45:37,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 10:45:37,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:45:37,969 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 10:45:38,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:45:38,025 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:45:38,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874659317] [2020-07-20 10:45:38,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:45:38,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 10:45:38,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220534047] [2020-07-20 10:45:38,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 10:45:38,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:45:38,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 10:45:38,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 10:45:38,046 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 6 states. [2020-07-20 10:45:38,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:45:38,133 INFO L93 Difference]: Finished difference Result 25 states and 33 transitions. [2020-07-20 10:45:38,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 10:45:38,135 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-07-20 10:45:38,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:45:38,141 INFO L225 Difference]: With dead ends: 25 [2020-07-20 10:45:38,141 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 10:45:38,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-20 10:45:38,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 10:45:38,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 10:45:38,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 10:45:38,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 10:45:38,173 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-07-20 10:45:38,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:45:38,174 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 10:45:38,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 10:45:38,174 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 10:45:38,175 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 10:45:38,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:45:38,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 10:45:38,543 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-20 10:45:38,543 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 10:45:38,544 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 10:45:38,544 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-20 10:45:38,544 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 10:45:38,544 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 10:45:38,545 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 10 26) the Hoare annotation is: true [2020-07-20 10:45:38,545 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 10 26) no Hoare annotation was computed. [2020-07-20 10:45:38,546 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (= (mod (+ main_~x~0 1) (- 2)) 0) (= (mod (+ main_~y~0 1) 2) 0)) [2020-07-20 10:45:38,546 INFO L264 CegarLoopResult]: At program point L23-1(lines 17 24) the Hoare annotation is: (and (= (mod (+ main_~x~0 1) (- 2)) 0) (= (mod (+ main_~y~0 1) 2) 0)) [2020-07-20 10:45:38,547 INFO L268 CegarLoopResult]: For program point L17-2(lines 17 24) no Hoare annotation was computed. [2020-07-20 10:45:38,547 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 10 26) no Hoare annotation was computed. [2020-07-20 10:45:38,550 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2020-07-20 10:45:38,551 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2020-07-20 10:45:38,551 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-07-20 10:45:38,551 INFO L268 CegarLoopResult]: For program point L5(lines 5 7) no Hoare annotation was computed. [2020-07-20 10:45:38,552 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2020-07-20 10:45:38,552 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2020-07-20 10:45:38,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:45:38 BoogieIcfgContainer [2020-07-20 10:45:38,579 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 10:45:38,584 INFO L168 Benchmark]: Toolchain (without parser) took 1565.35 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 101.6 MB in the beginning and 134.0 MB in the end (delta: -32.4 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2020-07-20 10:45:38,587 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 145.2 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 10:45:38,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.34 ms. Allocated memory is still 145.2 MB. Free memory was 101.4 MB in the beginning and 92.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-07-20 10:45:38,593 INFO L168 Benchmark]: Boogie Preprocessor took 115.16 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 92.1 MB in the beginning and 181.7 MB in the end (delta: -89.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-07-20 10:45:38,595 INFO L168 Benchmark]: RCFGBuilder took 241.42 ms. Allocated memory is still 202.4 MB. Free memory was 181.7 MB in the beginning and 170.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2020-07-20 10:45:38,598 INFO L168 Benchmark]: TraceAbstraction took 939.92 ms. Allocated memory is still 202.4 MB. Free memory was 169.9 MB in the beginning and 134.0 MB in the end (delta: 35.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. [2020-07-20 10:45:38,612 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 145.2 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 261.34 ms. Allocated memory is still 145.2 MB. Free memory was 101.4 MB in the beginning and 92.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.16 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 92.1 MB in the beginning and 181.7 MB in the end (delta: -89.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 241.42 ms. Allocated memory is still 202.4 MB. Free memory was 181.7 MB in the beginning and 170.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 939.92 ms. Allocated memory is still 202.4 MB. Free memory was 169.9 MB in the beginning and 134.0 MB in the end (delta: 35.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 17]: Loop Invariant Derived loop invariant: (x + 1) % -2 == 0 && (y + 1) % 2 == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 SDtfs, 5 SDslu, 23 SDs, 0 SdLazy, 14 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 11 NumberOfFragments, 35 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 297 SizeOfPredicates, 2 NumberOfNonLiveVariables, 27 ConjunctsInSsa, 11 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...