/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/bitvector/jain_7-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:25:15,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:25:15,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:25:15,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 00:25:15,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:25:15,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:25:15,930 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:25:15,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:25:15,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:25:15,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:25:15,952 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:25:15,965 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:25:15,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:25:15,973 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:25:15,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:25:15,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:25:15,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 00:25:16,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:25:16,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:25:16,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:25:16,004 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 00:25:16,031 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:25:16,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:25:16,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:25:16,037 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:25:16,038 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:25:16,038 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:25:16,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:25:16,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:25:16,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:25:16,039 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:25:16,040 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:25:16,040 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:25:16,041 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:25:16,041 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:25:16,041 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:25:16,042 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:25:16,042 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:25:16,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:25:16,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:25:16,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:25:16,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:25:16,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:25:16,043 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:25:16,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:25:16,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:25:16,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:25:16,473 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:25:16,473 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:25:16,474 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/jain_7-2.c [2020-11-07 00:25:16,582 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/135199d1a/f2fb8e7aeca74cab94653a0abbb8681b/FLAG6ee9bace2 [2020-11-07 00:25:17,220 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:25:17,221 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_7-2.c [2020-11-07 00:25:17,229 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/135199d1a/f2fb8e7aeca74cab94653a0abbb8681b/FLAG6ee9bace2 [2020-11-07 00:25:17,619 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/135199d1a/f2fb8e7aeca74cab94653a0abbb8681b [2020-11-07 00:25:17,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:25:17,631 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:25:17,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:25:17,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:25:17,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:25:17,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:25:17" (1/1) ... [2020-11-07 00:25:17,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@866ad59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:17, skipping insertion in model container [2020-11-07 00:25:17,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:25:17" (1/1) ... [2020-11-07 00:25:17,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:25:17,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:25:17,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:25:17,936 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:25:17,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:25:17,973 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:25:17,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:17 WrapperNode [2020-11-07 00:25:17,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:25:17,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:25:17,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:25:17,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:25:17,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:17" (1/1) ... [2020-11-07 00:25:17,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:17" (1/1) ... [2020-11-07 00:25:18,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:17" (1/1) ... [2020-11-07 00:25:18,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:17" (1/1) ... [2020-11-07 00:25:18,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:17" (1/1) ... [2020-11-07 00:25:18,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:17" (1/1) ... [2020-11-07 00:25:18,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:17" (1/1) ... [2020-11-07 00:25:18,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:25:18,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:25:18,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:25:18,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:25:18,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:17" (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 [2020-11-07 00:25:18,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:25:18,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:25:18,102 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:25:18,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-07 00:25:18,102 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:25:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:25:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:25:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:25:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:25:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-11-07 00:25:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-07 00:25:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:25:18,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:25:18,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:25:18,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:25:18,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:25:18,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:25:18,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:25:18,473 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:25:18,474 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-07 00:25:18,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:25:18 BoogieIcfgContainer [2020-11-07 00:25:18,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:25:18,478 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:25:18,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:25:18,482 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:25:18,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:25:17" (1/3) ... [2020-11-07 00:25:18,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53980de5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:25:18, skipping insertion in model container [2020-11-07 00:25:18,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:17" (2/3) ... [2020-11-07 00:25:18,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53980de5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:25:18, skipping insertion in model container [2020-11-07 00:25:18,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:25:18" (3/3) ... [2020-11-07 00:25:18,486 INFO L111 eAbstractionObserver]: Analyzing ICFG jain_7-2.c [2020-11-07 00:25:18,502 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:25:18,505 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 00:25:18,519 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 00:25:18,547 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:25:18,547 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:25:18,547 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:25:18,547 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:25:18,548 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:25:18,548 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:25:18,548 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:25:18,548 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:25:18,567 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2020-11-07 00:25:18,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-07 00:25:18,578 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:18,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:25:18,579 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:18,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:18,587 INFO L82 PathProgramCache]: Analyzing trace with hash 2071833913, now seen corresponding path program 1 times [2020-11-07 00:25:18,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:18,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1968827101] [2020-11-07 00:25:18,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:18,697 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:19,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:19,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:19,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:25:19,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1968827101] [2020-11-07 00:25:19,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:19,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-07 00:25:19,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858534699] [2020-11-07 00:25:19,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-07 00:25:19,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:19,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-07 00:25:19,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-11-07 00:25:19,412 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 11 states. [2020-11-07 00:25:20,177 WARN L194 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-11-07 00:25:20,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:20,575 INFO L93 Difference]: Finished difference Result 70 states and 83 transitions. [2020-11-07 00:25:20,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 00:25:20,577 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2020-11-07 00:25:20,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:20,586 INFO L225 Difference]: With dead ends: 70 [2020-11-07 00:25:20,587 INFO L226 Difference]: Without dead ends: 47 [2020-11-07 00:25:20,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2020-11-07 00:25:20,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-07 00:25:20,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2020-11-07 00:25:20,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-07 00:25:20,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2020-11-07 00:25:20,646 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 30 [2020-11-07 00:25:20,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:20,646 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2020-11-07 00:25:20,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-07 00:25:20,647 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2020-11-07 00:25:20,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-07 00:25:20,649 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:20,649 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:25:20,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:25:20,650 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:20,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:20,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1617490268, now seen corresponding path program 1 times [2020-11-07 00:25:20,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:20,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1385805031] [2020-11-07 00:25:20,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:20,798 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2020-11-07 00:25:20,966 WARN L194 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-11-07 00:25:20,986 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-11-07 00:25:20,989 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:21,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:21,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-11-07 00:25:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:21,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:25:21,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1385805031] [2020-11-07 00:25:21,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:21,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-07 00:25:21,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662074090] [2020-11-07 00:25:21,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-07 00:25:21,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:21,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-07 00:25:21,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-11-07 00:25:21,410 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 12 states. [2020-11-07 00:25:21,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:21,988 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2020-11-07 00:25:21,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 00:25:21,989 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 42 [2020-11-07 00:25:21,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:21,990 INFO L225 Difference]: With dead ends: 45 [2020-11-07 00:25:21,990 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 00:25:21,992 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2020-11-07 00:25:21,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 00:25:21,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 00:25:21,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 00:25:21,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 00:25:21,993 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2020-11-07 00:25:21,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:21,994 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 00:25:21,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-07 00:25:21,994 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 00:25:21,994 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 00:25:21,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:25:21,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 00:25:22,816 INFO L269 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: true [2020-11-07 00:25:22,816 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-11-07 00:25:22,817 INFO L269 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: true [2020-11-07 00:25:22,817 INFO L269 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: true [2020-11-07 00:25:22,817 INFO L269 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: true [2020-11-07 00:25:22,817 INFO L269 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: true [2020-11-07 00:25:22,817 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 00:25:22,817 INFO L269 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: true [2020-11-07 00:25:22,818 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-11-07 00:25:22,818 INFO L269 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2020-11-07 00:25:22,818 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-11-07 00:25:22,818 INFO L269 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: true [2020-11-07 00:25:22,818 INFO L269 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: true [2020-11-07 00:25:22,818 INFO L269 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-11-07 00:25:22,819 INFO L262 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: false [2020-11-07 00:25:22,819 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 00:25:22,820 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-07 00:25:22,821 INFO L262 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: false [2020-11-07 00:25:22,821 INFO L262 CegarLoopResult]: At program point mainEXIT(lines 12 29) the Hoare annotation is: false [2020-11-07 00:25:22,821 INFO L262 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (<= (+ (* 4 main_~x~0) main_~z~0) (+ (* 2 main_~y~0) (* 4194304 (div (+ (* main_~x~0 4) (* main_~y~0 (- 2)) main_~z~0) 4194304)))) [2020-11-07 00:25:22,822 INFO L262 CegarLoopResult]: At program point L23-1(line 23) the Hoare annotation is: (<= (+ (* 4 main_~x~0) main_~z~0) (+ (* 2 main_~y~0) (* 4194304 (div (+ (* main_~x~0 4) (* main_~y~0 (- 2)) main_~z~0) 4194304)))) [2020-11-07 00:25:22,822 INFO L262 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (= main_~x~0 0) [2020-11-07 00:25:22,822 INFO L262 CegarLoopResult]: At program point mainFINAL(lines 12 29) the Hoare annotation is: false [2020-11-07 00:25:22,826 INFO L269 CegarLoopResult]: At program point mainENTRY(lines 12 29) the Hoare annotation is: true [2020-11-07 00:25:22,827 INFO L262 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (<= (+ (* 4 main_~x~0) main_~z~0) (+ (* 2 main_~y~0) (* 4194304 (div (+ (* main_~x~0 4) (* main_~y~0 (- 2)) main_~z~0) 4194304)))) [2020-11-07 00:25:22,827 INFO L262 CegarLoopResult]: At program point L26-1(lines 20 27) the Hoare annotation is: (<= (+ (* 4 main_~x~0) main_~z~0) (+ (* 2 main_~y~0) (* 4194304 (div (+ (* main_~x~0 4) (* main_~y~0 (- 2)) main_~z~0) 4194304)))) [2020-11-07 00:25:22,827 INFO L262 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: (<= (+ (* 4 main_~x~0) main_~z~0) (+ (* 2 main_~y~0) (* 4194304 (div (+ (* main_~x~0 4) (* main_~y~0 (- 2)) main_~z~0) 4194304)))) [2020-11-07 00:25:22,827 INFO L262 CegarLoopResult]: At program point L24-1(line 24) the Hoare annotation is: (<= (+ (* 4 main_~x~0) main_~z~0) (+ (* 2 main_~y~0) (* 4194304 (div (+ (* main_~x~0 4) (* main_~y~0 (- 2)) main_~z~0) 4194304)))) [2020-11-07 00:25:22,828 INFO L262 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (<= (+ (* 4 main_~x~0) main_~z~0) (+ (* 2 main_~y~0) (* 4194304 (div (+ (* main_~x~0 4) (* main_~y~0 (- 2)) main_~z~0) 4194304)))) [2020-11-07 00:25:22,828 INFO L262 CegarLoopResult]: At program point L22-1(line 22) the Hoare annotation is: (<= (+ (* 4 main_~x~0) main_~z~0) (+ (* 2 main_~y~0) (* 4194304 (div (+ (* main_~x~0 4) (* main_~y~0 (- 2)) main_~z~0) 4194304)))) [2020-11-07 00:25:22,828 INFO L262 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (and (= main_~y~0 0) (= main_~x~0 0)) [2020-11-07 00:25:22,828 INFO L262 CegarLoopResult]: At program point L20-2(lines 20 27) the Hoare annotation is: false [2020-11-07 00:25:22,828 INFO L269 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-11-07 00:25:22,828 INFO L269 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-11-07 00:25:22,829 INFO L269 CegarLoopResult]: At program point L14-1(line 14) the Hoare annotation is: true [2020-11-07 00:25:22,829 INFO L269 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-11-07 00:25:22,830 INFO L262 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 6 11) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-11-07 00:25:22,830 INFO L262 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-11-07 00:25:22,831 INFO L262 CegarLoopResult]: At program point L7(lines 7 9) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-11-07 00:25:22,831 INFO L262 CegarLoopResult]: At program point L8-1(line 8) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-11-07 00:25:22,831 INFO L262 CegarLoopResult]: At program point L7-2(lines 6 11) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-11-07 00:25:22,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:25:22 BoogieIcfgContainer [2020-11-07 00:25:22,852 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:25:22,854 INFO L168 Benchmark]: Toolchain (without parser) took 5228.19 ms. Allocated memory was 161.5 MB in the beginning and 194.0 MB in the end (delta: 32.5 MB). Free memory was 138.0 MB in the beginning and 97.8 MB in the end (delta: 40.2 MB). Peak memory consumption was 93.9 MB. Max. memory is 8.0 GB. [2020-11-07 00:25:22,855 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 161.5 MB. Free memory is still 135.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:25:22,856 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.25 ms. Allocated memory is still 161.5 MB. Free memory was 137.4 MB in the beginning and 128.3 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2020-11-07 00:25:22,857 INFO L168 Benchmark]: Boogie Preprocessor took 39.47 ms. Allocated memory is still 161.5 MB. Free memory was 128.3 MB in the beginning and 126.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:25:22,858 INFO L168 Benchmark]: RCFGBuilder took 460.36 ms. Allocated memory is still 161.5 MB. Free memory was 126.8 MB in the beginning and 144.1 MB in the end (delta: -17.3 MB). Peak memory consumption was 16.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:25:22,859 INFO L168 Benchmark]: TraceAbstraction took 4373.46 ms. Allocated memory was 161.5 MB in the beginning and 194.0 MB in the end (delta: 32.5 MB). Free memory was 143.6 MB in the beginning and 97.8 MB in the end (delta: 45.8 MB). Peak memory consumption was 98.7 MB. Max. memory is 8.0 GB. [2020-11-07 00:25:22,864 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 161.5 MB. Free memory is still 135.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 341.25 ms. Allocated memory is still 161.5 MB. Free memory was 137.4 MB in the beginning and 128.3 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 39.47 ms. Allocated memory is still 161.5 MB. Free memory was 128.3 MB in the beginning and 126.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 460.36 ms. Allocated memory is still 161.5 MB. Free memory was 126.8 MB in the beginning and 144.1 MB in the end (delta: -17.3 MB). Peak memory consumption was 16.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4373.46 ms. Allocated memory was 161.5 MB in the beginning and 194.0 MB in the end (delta: 32.5 MB). Free memory was 143.6 MB in the beginning and 97.8 MB in the end (delta: 45.8 MB). Peak memory consumption was 98.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 20]: Loop Invariant Derived loop invariant: 4 * x + z <= 2 * y + 4194304 * ((x * 4 + y * -2 + z) / 4194304) - ProcedureContractResult [Line: 3]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 12]: Procedure Contract for main Derived contract for procedure main: 0 - ProcedureContractResult [Line: 6]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 73 SDslu, 179 SDs, 0 SdLazy, 233 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 41 LocationsWithAnnotation, 57 PreInvPairs, 77 NumberOfFragments, 272 HoareAnnotationTreeSize, 57 FomulaSimplifications, 414 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 41 FomulaSimplificationsInter, 848 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...