/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loop-zilu/benchmark04_conjunctive.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 02:20:56,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 02:20:56,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 02:20:56,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-15 02:20:56,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 02:20:56,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 02:20:56,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 02:20:56,481 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-02-15 02:20:56,495 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 02:20:56,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 02:20:56,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 02:20:56,497 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 02:20:56,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 02:20:56,497 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 02:20:56,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 02:20:56,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 02:20:56,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 02:20:56,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 02:20:56,498 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 02:20:56,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 02:20:56,499 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 02:20:56,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 02:20:56,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 02:20:56,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 02:20:56,499 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 02:20:56,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 02:20:56,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 02:20:56,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 02:20:56,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-15 02:20:56,500 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-15 02:20:56,500 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-02-15 02:20:56,500 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 02:20:56,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 02:20:56,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 02:20:56,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 02:20:56,670 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 02:20:56,670 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 02:20:56,671 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-zilu/benchmark04_conjunctive.i [2022-02-15 02:20:56,723 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fce06afc6/68d90883276a4c32b037dd4416044c31/FLAGeb016358d [2022-02-15 02:20:57,090 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 02:20:57,091 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark04_conjunctive.i [2022-02-15 02:20:57,095 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fce06afc6/68d90883276a4c32b037dd4416044c31/FLAGeb016358d [2022-02-15 02:20:57,104 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fce06afc6/68d90883276a4c32b037dd4416044c31 [2022-02-15 02:20:57,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 02:20:57,107 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-15 02:20:57,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 02:20:57,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 02:20:57,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 02:20:57,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:20:57" (1/1) ... [2022-02-15 02:20:57,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51b744dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:20:57, skipping insertion in model container [2022-02-15 02:20:57,112 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:20:57" (1/1) ... [2022-02-15 02:20:57,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 02:20:57,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 02:20:57,245 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark04_conjunctive.i[873,886] [2022-02-15 02:20:57,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 02:20:57,271 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 02:20:57,279 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark04_conjunctive.i[873,886] [2022-02-15 02:20:57,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 02:20:57,289 INFO L208 MainTranslator]: Completed translation [2022-02-15 02:20:57,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:20:57 WrapperNode [2022-02-15 02:20:57,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 02:20:57,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 02:20:57,291 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 02:20:57,291 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 02:20:57,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:20:57" (1/1) ... [2022-02-15 02:20:57,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:20:57" (1/1) ... [2022-02-15 02:20:57,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:20:57" (1/1) ... [2022-02-15 02:20:57,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:20:57" (1/1) ... [2022-02-15 02:20:57,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:20:57" (1/1) ... [2022-02-15 02:20:57,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:20:57" (1/1) ... [2022-02-15 02:20:57,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:20:57" (1/1) ... [2022-02-15 02:20:57,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 02:20:57,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 02:20:57,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 02:20:57,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 02:20:57,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:20:57" (1/1) ... [2022-02-15 02:20:57,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 02:20:57,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 02:20:57,357 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-15 02:20:57,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-15 02:20:57,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 02:20:57,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 02:20:57,389 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 02:20:57,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-15 02:20:57,389 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 02:20:57,389 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 02:20:57,389 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-02-15 02:20:57,389 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-02-15 02:20:57,389 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 02:20:57,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 02:20:57,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-15 02:20:57,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2022-02-15 02:20:57,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-15 02:20:57,390 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 02:20:57,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 02:20:57,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 02:20:57,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 02:20:57,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 02:20:57,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 02:20:57,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 02:20:57,442 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 02:20:57,443 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 02:20:57,516 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 02:20:57,520 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 02:20:57,521 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-15 02:20:57,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:20:57 BoogieIcfgContainer [2022-02-15 02:20:57,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 02:20:57,523 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 02:20:57,523 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 02:20:57,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 02:20:57,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 02:20:57" (1/3) ... [2022-02-15 02:20:57,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@139fc126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:20:57, skipping insertion in model container [2022-02-15 02:20:57,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:20:57" (2/3) ... [2022-02-15 02:20:57,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@139fc126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:20:57, skipping insertion in model container [2022-02-15 02:20:57,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:20:57" (3/3) ... [2022-02-15 02:20:57,544 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark04_conjunctive.i [2022-02-15 02:20:57,548 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-15 02:20:57,548 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 02:20:57,584 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 02:20:57,589 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=JORDAN [2022-02-15 02:20:57,589 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 02:20:57,602 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 02:20:57,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-02-15 02:20:57,608 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:20:57,608 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 02:20:57,609 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:20:57,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:20:57,613 INFO L85 PathProgramCache]: Analyzing trace with hash -304977768, now seen corresponding path program 1 times [2022-02-15 02:20:57,619 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:20:57,619 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1900104005] [2022-02-15 02:20:57,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:20:57,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:20:57,663 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 02:20:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:20:57,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:20:57,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:20:57,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 02:20:57,816 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:20:57,816 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1900104005] [2022-02-15 02:20:57,818 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1900104005] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:20:57,818 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:20:57,818 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 02:20:57,819 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532291746] [2022-02-15 02:20:57,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:20:57,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 02:20:57,823 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:20:57,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 02:20:57,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 02:20:57,870 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:20:57,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:20:57,996 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2022-02-15 02:20:57,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 02:20:57,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-02-15 02:20:57,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:20:58,003 INFO L225 Difference]: With dead ends: 33 [2022-02-15 02:20:58,003 INFO L226 Difference]: Without dead ends: 14 [2022-02-15 02:20:58,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 02:20:58,008 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 12 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 02:20:58,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 28 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 02:20:58,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-02-15 02:20:58,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-02-15 02:20:58,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:20:58,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-02-15 02:20:58,037 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2022-02-15 02:20:58,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:20:58,038 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-02-15 02:20:58,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:20:58,038 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-02-15 02:20:58,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-02-15 02:20:58,038 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:20:58,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 02:20:58,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 02:20:58,039 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:20:58,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:20:58,040 INFO L85 PathProgramCache]: Analyzing trace with hash -828987386, now seen corresponding path program 1 times [2022-02-15 02:20:58,040 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:20:58,040 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [475842438] [2022-02-15 02:20:58,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:20:58,178 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:20:58,180 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-02-15 02:20:58,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:20:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:20:58,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:20:58,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:20:58,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 02:20:58,379 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:20:58,379 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [475842438] [2022-02-15 02:20:58,379 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [475842438] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:20:58,379 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:20:58,379 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-15 02:20:58,379 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124693213] [2022-02-15 02:20:58,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:20:58,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 02:20:58,380 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:20:58,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 02:20:58,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-02-15 02:20:58,381 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:20:58,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:20:58,420 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-02-15 02:20:58,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 02:20:58,420 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-02-15 02:20:58,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:20:58,420 INFO L225 Difference]: With dead ends: 14 [2022-02-15 02:20:58,420 INFO L226 Difference]: Without dead ends: 0 [2022-02-15 02:20:58,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-02-15 02:20:58,422 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 02:20:58,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 33 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 4 Unchecked, 0.0s Time] [2022-02-15 02:20:58,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-15 02:20:58,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-15 02:20:58,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 02:20:58,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-15 02:20:58,424 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-02-15 02:20:58,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:20:58,424 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-15 02:20:58,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:20:58,424 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-15 02:20:58,424 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-15 02:20:58,426 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-15 02:20:58,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 02:20:58,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-02-15 02:20:58,475 INFO L858 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2022-02-15 02:20:58,476 INFO L858 garLoopResultBuilder]: For program point reach_errorENTRY(line 11) no Hoare annotation was computed. [2022-02-15 02:20:58,476 INFO L858 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2022-02-15 02:20:58,476 INFO L861 garLoopResultBuilder]: At program point mainENTRY(lines 19 30) the Hoare annotation is: true [2022-02-15 02:20:58,476 INFO L861 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: true [2022-02-15 02:20:58,476 INFO L861 garLoopResultBuilder]: At program point mainEXIT(lines 19 30) the Hoare annotation is: true [2022-02-15 02:20:58,476 INFO L861 garLoopResultBuilder]: At program point L23(line 23) the Hoare annotation is: true [2022-02-15 02:20:58,476 INFO L854 garLoopResultBuilder]: At program point L24-2(lines 24 27) the Hoare annotation is: (exists ((v_main_~j~0_9 Int) (|v_main_#t~post5_5| Int) (v_main_~k~0_10 Int) (|v_main_#t~post4_5| Int)) (let ((.cse0 (+ v_main_~k~0_10 v_main_~j~0_9))) (and (or (and (<= .cse0 (+ main_~n~0 main_~k~0)) (< main_~k~0 v_main_~k~0_10) (= .cse0 (+ main_~k~0 main_~j~0))) (and (= |main_#t~post4| |v_main_#t~post4_5|) (= |main_#t~post5| |v_main_#t~post5_5|) (= v_main_~j~0_9 main_~j~0) (= v_main_~k~0_10 main_~k~0))) (<= main_~n~0 .cse0) (<= (+ v_main_~j~0_9 1) main_~n~0)))) [2022-02-15 02:20:58,477 INFO L854 garLoopResultBuilder]: At program point L24-3(lines 24 27) the Hoare annotation is: (<= 0 main_~k~0) [2022-02-15 02:20:58,477 INFO L861 garLoopResultBuilder]: At program point mainFINAL(lines 19 30) the Hoare annotation is: true [2022-02-15 02:20:58,477 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2022-02-15 02:20:58,477 INFO L854 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-02-15 02:20:58,477 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2022-02-15 02:20:58,477 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2022-02-15 02:20:58,477 INFO L861 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-02-15 02:20:58,477 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-02-15 02:20:58,477 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2022-02-15 02:20:58,478 INFO L854 garLoopResultBuilder]: At program point L16(line 16) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2022-02-15 02:20:58,478 INFO L854 garLoopResultBuilder]: At program point L15(lines 15 17) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2022-02-15 02:20:58,478 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 14 18) the Hoare annotation is: true [2022-02-15 02:20:58,478 INFO L861 garLoopResultBuilder]: At program point L15-2(lines 14 18) the Hoare annotation is: true [2022-02-15 02:20:58,478 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertEXIT(lines 14 18) the Hoare annotation is: true [2022-02-15 02:20:58,478 INFO L854 garLoopResultBuilder]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2022-02-15 02:20:58,480 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-15 02:20:58,481 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-15 02:20:58,487 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] [2022-02-15 02:20:58,488 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] [2022-02-15 02:20:58,488 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] [2022-02-15 02:20:58,488 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] [2022-02-15 02:20:58,488 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] [2022-02-15 02:20:58,488 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post4_5,QUANTIFIED] [2022-02-15 02:20:58,488 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post5_5,QUANTIFIED] [2022-02-15 02:20:58,488 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] [2022-02-15 02:20:58,489 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] [2022-02-15 02:20:58,489 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] [2022-02-15 02:20:58,489 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] [2022-02-15 02:20:58,489 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] [2022-02-15 02:20:58,493 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] [2022-02-15 02:20:58,493 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] [2022-02-15 02:20:58,494 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] [2022-02-15 02:20:58,494 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] [2022-02-15 02:20:58,494 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] [2022-02-15 02:20:58,494 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post4_5,QUANTIFIED] [2022-02-15 02:20:58,494 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post5_5,QUANTIFIED] [2022-02-15 02:20:58,494 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] [2022-02-15 02:20:58,494 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] [2022-02-15 02:20:58,494 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] [2022-02-15 02:20:58,494 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] [2022-02-15 02:20:58,494 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] [2022-02-15 02:20:58,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 02:20:58 BoogieIcfgContainer [2022-02-15 02:20:58,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-15 02:20:58,496 INFO L158 Benchmark]: Toolchain (without parser) took 1389.18ms. Allocated memory was 210.8MB in the beginning and 271.6MB in the end (delta: 60.8MB). Free memory was 161.9MB in the beginning and 233.7MB in the end (delta: -71.8MB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-15 02:20:58,496 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 210.8MB. Free memory is still 178.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-15 02:20:58,497 INFO L158 Benchmark]: CACSL2BoogieTranslator took 182.19ms. Allocated memory is still 210.8MB. Free memory was 161.6MB in the beginning and 187.2MB in the end (delta: -25.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-02-15 02:20:58,497 INFO L158 Benchmark]: Boogie Preprocessor took 31.85ms. Allocated memory is still 210.8MB. Free memory was 187.2MB in the beginning and 186.0MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-15 02:20:58,497 INFO L158 Benchmark]: RCFGBuilder took 199.03ms. Allocated memory is still 210.8MB. Free memory was 186.0MB in the beginning and 175.9MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-15 02:20:58,498 INFO L158 Benchmark]: TraceAbstraction took 972.44ms. Allocated memory was 210.8MB in the beginning and 271.6MB in the end (delta: 60.8MB). Free memory was 175.5MB in the beginning and 233.7MB in the end (delta: -58.2MB). Peak memory consumption was 3.3MB. Max. memory is 8.0GB. [2022-02-15 02:20:58,499 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 210.8MB. Free memory is still 178.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 182.19ms. Allocated memory is still 210.8MB. Free memory was 161.6MB in the beginning and 187.2MB in the end (delta: -25.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.85ms. Allocated memory is still 210.8MB. Free memory was 187.2MB in the beginning and 186.0MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 199.03ms. Allocated memory is still 210.8MB. Free memory was 186.0MB in the beginning and 175.9MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 972.44ms. Allocated memory was 210.8MB in the beginning and 271.6MB in the end (delta: 60.8MB). Free memory was 175.5MB in the beginning and 233.7MB in the end (delta: -58.2MB). Peak memory consumption was 3.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post4_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post5_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post4_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post5_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 61 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 4 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 27 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 20 LocationsWithAnnotation, 26 PreInvPairs, 35 NumberOfFragments, 82 HoareAnnotationTreeSize, 26 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 20 FomulaSimplificationsInter, 56 FormulaSimplificationTreeSizeReductionInter, 0.0s 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant [2022-02-15 02:20:58,505 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] [2022-02-15 02:20:58,505 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] [2022-02-15 02:20:58,506 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] [2022-02-15 02:20:58,506 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] [2022-02-15 02:20:58,506 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] [2022-02-15 02:20:58,506 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post4_5,QUANTIFIED] [2022-02-15 02:20:58,506 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post5_5,QUANTIFIED] [2022-02-15 02:20:58,506 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] [2022-02-15 02:20:58,506 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] [2022-02-15 02:20:58,506 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] [2022-02-15 02:20:58,506 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] [2022-02-15 02:20:58,506 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] [2022-02-15 02:20:58,507 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] [2022-02-15 02:20:58,507 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] [2022-02-15 02:20:58,507 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] [2022-02-15 02:20:58,507 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] [2022-02-15 02:20:58,507 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] [2022-02-15 02:20:58,507 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post4_5,QUANTIFIED] [2022-02-15 02:20:58,507 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post5_5,QUANTIFIED] [2022-02-15 02:20:58,507 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] [2022-02-15 02:20:58,507 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] [2022-02-15 02:20:58,507 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~k~0_10,QUANTIFIED] [2022-02-15 02:20:58,508 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] [2022-02-15 02:20:58,508 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_9,QUANTIFIED] Derived loop invariant: (\exists v_main_~j~0_9 : int, v_main_#t~post5_5 : int, v_main_~k~0_10 : int, v_main_#t~post4_5 : int :: ((((v_main_~k~0_10 + v_main_~j~0_9 <= n + k && k < v_main_~k~0_10) && v_main_~k~0_10 + v_main_~j~0_9 == k + j) || (((aux-j++-aux == v_main_#t~post4_5 && aux-k---aux == v_main_#t~post5_5) && v_main_~j~0_9 == j) && v_main_~k~0_10 == k)) && n <= v_main_~k~0_10 + v_main_~j~0_9) && v_main_~j~0_9 + 1 <= n) - ProcedureContractResult [Line: 19]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 RESULT: Ultimate proved your program to be correct! [2022-02-15 02:20:58,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...