/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/nla-digbench-scaling/ps2-ll_valuebound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-06 18:16:36,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-06 18:16:36,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-06 18:16:36,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-06 18:16:36,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-06 18:16:36,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-06 18:16:36,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-06 18:16:36,710 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-04-06 18:16:36,721 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-06 18:16:36,725 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-06 18:16:36,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-06 18:16:36,727 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-06 18:16:36,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-06 18:16:36,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-06 18:16:36,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-06 18:16:36,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-06 18:16:36,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-06 18:16:36,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-06 18:16:36,728 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-06 18:16:36,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-06 18:16:36,729 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-06 18:16:36,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-06 18:16:36,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-06 18:16:36,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-06 18:16:36,729 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-06 18:16:36,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-06 18:16:36,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 18:16:36,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-06 18:16:36,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-06 18:16:36,730 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-06 18:16:36,730 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-06 18:16:36,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-06 18:16:36,730 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-04-06 18:16:36,730 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-06 18:16:36,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-06 18:16:37,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-06 18:16:37,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-06 18:16:37,019 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-06 18:16:37,020 INFO L275 PluginConnector]: CDTParser initialized [2022-04-06 18:16:37,021 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/ps2-ll_valuebound1.c [2022-04-06 18:16:37,097 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99fad4b2e/c8ede7b0941846728d81d3295b8e2528/FLAG085082104 [2022-04-06 18:16:37,725 INFO L306 CDTParser]: Found 1 translation units. [2022-04-06 18:16:37,725 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps2-ll_valuebound1.c [2022-04-06 18:16:37,730 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99fad4b2e/c8ede7b0941846728d81d3295b8e2528/FLAG085082104 [2022-04-06 18:16:38,057 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99fad4b2e/c8ede7b0941846728d81d3295b8e2528 [2022-04-06 18:16:38,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-06 18:16:38,060 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-06 18:16:38,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-06 18:16:38,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-06 18:16:38,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-06 18:16:38,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 06:16:38" (1/1) ... [2022-04-06 18:16:38,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@702c66d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:16:38, skipping insertion in model container [2022-04-06 18:16:38,075 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 06:16:38" (1/1) ... [2022-04-06 18:16:38,085 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-06 18:16:38,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-06 18:16:38,425 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps2-ll_valuebound1.c[454,467] [2022-04-06 18:16:38,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 18:16:38,476 INFO L203 MainTranslator]: Completed pre-run [2022-04-06 18:16:38,488 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps2-ll_valuebound1.c[454,467] [2022-04-06 18:16:38,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 18:16:38,519 INFO L208 MainTranslator]: Completed translation [2022-04-06 18:16:38,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:16:38 WrapperNode [2022-04-06 18:16:38,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-06 18:16:38,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-06 18:16:38,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-06 18:16:38,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-06 18:16:38,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:16:38" (1/1) ... [2022-04-06 18:16:38,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:16:38" (1/1) ... [2022-04-06 18:16:38,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:16:38" (1/1) ... [2022-04-06 18:16:38,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:16:38" (1/1) ... [2022-04-06 18:16:38,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:16:38" (1/1) ... [2022-04-06 18:16:38,581 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:16:38" (1/1) ... [2022-04-06 18:16:38,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:16:38" (1/1) ... [2022-04-06 18:16:38,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-06 18:16:38,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-06 18:16:38,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-06 18:16:38,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-06 18:16:38,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:16:38" (1/1) ... [2022-04-06 18:16:38,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 18:16:38,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 18:16:38,673 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) [2022-04-06 18:16:38,717 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 [2022-04-06 18:16:38,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-06 18:16:38,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-06 18:16:38,741 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-06 18:16:38,741 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-06 18:16:38,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-06 18:16:38,741 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-06 18:16:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-06 18:16:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-06 18:16:38,742 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-06 18:16:38,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-06 18:16:38,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-06 18:16:38,743 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-06 18:16:38,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-06 18:16:38,743 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-06 18:16:38,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-06 18:16:38,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-06 18:16:38,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-06 18:16:38,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-06 18:16:38,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-06 18:16:38,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-06 18:16:38,802 INFO L234 CfgBuilder]: Building ICFG [2022-04-06 18:16:38,804 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-06 18:16:38,952 INFO L275 CfgBuilder]: Performing block encoding [2022-04-06 18:16:38,957 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-06 18:16:38,957 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-06 18:16:38,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 06:16:38 BoogieIcfgContainer [2022-04-06 18:16:38,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-06 18:16:38,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-06 18:16:38,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-06 18:16:38,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-06 18:16:38,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 06:16:38" (1/3) ... [2022-04-06 18:16:38,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@593675ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 06:16:38, skipping insertion in model container [2022-04-06 18:16:38,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:16:38" (2/3) ... [2022-04-06 18:16:38,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@593675ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 06:16:38, skipping insertion in model container [2022-04-06 18:16:38,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 06:16:38" (3/3) ... [2022-04-06 18:16:38,971 INFO L111 eAbstractionObserver]: Analyzing ICFG ps2-ll_valuebound1.c [2022-04-06 18:16:38,979 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-06 18:16:38,979 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-06 18:16:39,071 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-06 18:16:39,085 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, 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 [2022-04-06 18:16:39,086 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-06 18:16:39,115 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-06 18:16:39,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-06 18:16:39,121 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 18:16:39,121 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 18:16:39,122 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 18:16:39,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 18:16:39,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1914087080, now seen corresponding path program 1 times [2022-04-06 18:16:39,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 18:16:39,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [438346966] [2022-04-06 18:16:39,170 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 18:16:39,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1914087080, now seen corresponding path program 2 times [2022-04-06 18:16:39,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 18:16:39,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305105419] [2022-04-06 18:16:39,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 18:16:39,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 18:16:39,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:16:39,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 18:16:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:16:39,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-06 18:16:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:16:39,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 18:16:39,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 18:16:39,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305105419] [2022-04-06 18:16:39,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305105419] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:16:39,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:16:39,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-06 18:16:39,448 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 18:16:39,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [438346966] [2022-04-06 18:16:39,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [438346966] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:16:39,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:16:39,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-06 18:16:39,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991223510] [2022-04-06 18:16:39,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 18:16:39,453 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-06 18:16:39,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 18:16:39,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-06 18:16:39,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-06 18:16:39,510 INFO L87 Difference]: Start difference. First operand has 27 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-06 18:16:39,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 18:16:39,588 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2022-04-06 18:16:39,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-06 18:16:39,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-04-06 18:16:39,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 18:16:39,600 INFO L225 Difference]: With dead ends: 45 [2022-04-06 18:16:39,600 INFO L226 Difference]: Without dead ends: 22 [2022-04-06 18:16:39,603 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-06 18:16:39,610 INFO L913 BasicCegarLoop]: 25 mSDtfsCounter, 15 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-06 18:16:39,611 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 28 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-06 18:16:39,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-04-06 18:16:39,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-04-06 18:16:39,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-06 18:16:39,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2022-04-06 18:16:39,696 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 17 [2022-04-06 18:16:39,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 18:16:39,696 INFO L478 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2022-04-06 18:16:39,696 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-06 18:16:39,697 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-04-06 18:16:39,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-06 18:16:39,697 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 18:16:39,697 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 18:16:39,698 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-06 18:16:39,698 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 18:16:39,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 18:16:39,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1699034386, now seen corresponding path program 1 times [2022-04-06 18:16:39,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 18:16:39,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1796570218] [2022-04-06 18:16:39,700 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 18:16:39,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1699034386, now seen corresponding path program 2 times [2022-04-06 18:16:39,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 18:16:39,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617904520] [2022-04-06 18:16:39,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 18:16:39,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 18:16:39,725 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-06 18:16:39,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [853703243] [2022-04-06 18:16:39,725 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-06 18:16:39,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 18:16:39,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 18:16:39,744 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 18:16:39,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-06 18:16:39,811 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-04-06 18:16:39,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 18:16:39,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-06 18:16:39,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 18:16:39,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 18:16:39,921 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-06 18:16:39,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 18:16:39,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617904520] [2022-04-06 18:16:39,922 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-06 18:16:39,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853703243] [2022-04-06 18:16:39,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853703243] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:16:39,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:16:39,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 18:16:39,929 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 18:16:39,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1796570218] [2022-04-06 18:16:39,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1796570218] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:16:39,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:16:39,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 18:16:39,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524264318] [2022-04-06 18:16:39,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 18:16:39,931 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 18:16:39,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 18:16:39,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 18:16:39,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 18:16:39,932 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-06 18:16:40,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 18:16:40,013 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2022-04-06 18:16:40,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 18:16:40,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-04-06 18:16:40,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 18:16:40,015 INFO L225 Difference]: With dead ends: 32 [2022-04-06 18:16:40,015 INFO L226 Difference]: Without dead ends: 29 [2022-04-06 18:16:40,015 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 18:16:40,016 INFO L913 BasicCegarLoop]: 20 mSDtfsCounter, 6 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-06 18:16:40,017 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 72 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-06 18:16:40,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-04-06 18:16:40,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-04-06 18:16:40,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-06 18:16:40,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2022-04-06 18:16:40,032 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 17 [2022-04-06 18:16:40,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 18:16:40,033 INFO L478 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2022-04-06 18:16:40,033 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-06 18:16:40,033 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2022-04-06 18:16:40,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-04-06 18:16:40,034 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 18:16:40,034 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 18:16:40,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-06 18:16:40,250 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 18:16:40,251 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 18:16:40,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 18:16:40,252 INFO L85 PathProgramCache]: Analyzing trace with hash 276758134, now seen corresponding path program 1 times [2022-04-06 18:16:40,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 18:16:40,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [399451584] [2022-04-06 18:16:41,839 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 3=1}}, 0 SequentialAcceleration, 1 AlternatingAcceleration, 1 QuantifierFreeResult [2022-04-06 18:16:41,840 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-04-06 18:16:41,842 INFO L85 PathProgramCache]: Analyzing trace with hash 22480176, now seen corresponding path program 1 times [2022-04-06 18:16:41,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 18:16:41,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881607095] [2022-04-06 18:16:41,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 18:16:41,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 18:16:41,870 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-06 18:16:41,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [262997774] [2022-04-06 18:16:41,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 18:16:41,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 18:16:41,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 18:16:41,894 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 18:16:41,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-06 18:16:41,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:16:41,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 14 conjunts are in the unsatisfiable core [2022-04-06 18:16:41,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 18:16:42,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 18:16:42,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-06 18:16:42,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 18:16:42,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881607095] [2022-04-06 18:16:42,681 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-06 18:16:42,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262997774] [2022-04-06 18:16:42,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262997774] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:16:42,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:16:42,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-04-06 18:16:48,198 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 18:16:48,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [399451584] [2022-04-06 18:16:48,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [399451584] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:16:48,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:16:48,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-06 18:16:48,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547105622] [2022-04-06 18:16:48,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 18:16:48,200 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-06 18:16:48,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 18:16:48,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-06 18:16:48,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=165, Unknown=2, NotChecked=0, Total=210 [2022-04-06 18:16:48,201 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 9 states have internal predecessors, (16), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-06 18:16:48,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 18:16:48,790 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2022-04-06 18:16:48,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-06 18:16:48,791 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 9 states have internal predecessors, (16), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2022-04-06 18:16:48,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 18:16:48,793 INFO L225 Difference]: With dead ends: 35 [2022-04-06 18:16:48,793 INFO L226 Difference]: Without dead ends: 33 [2022-04-06 18:16:48,794 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=52, Invalid=218, Unknown=2, NotChecked=0, Total=272 [2022-04-06 18:16:48,795 INFO L913 BasicCegarLoop]: 21 mSDtfsCounter, 9 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-06 18:16:48,795 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 145 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 33 Unchecked, 0.0s Time] [2022-04-06 18:16:48,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-04-06 18:16:48,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-04-06 18:16:48,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 22 states have internal predecessors, (23), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-06 18:16:48,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2022-04-06 18:16:48,813 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 24 [2022-04-06 18:16:48,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 18:16:48,813 INFO L478 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2022-04-06 18:16:48,813 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 9 states have internal predecessors, (16), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-06 18:16:48,814 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2022-04-06 18:16:48,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-04-06 18:16:48,815 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 18:16:48,815 INFO L499 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 18:16:48,857 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-06 18:16:49,040 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-04-06 18:16:49,041 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 18:16:49,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 18:16:49,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1991712461, now seen corresponding path program 1 times [2022-04-06 18:16:49,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 18:16:49,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1926422855] [2022-04-06 18:16:51,983 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 3=1}}, 0 SequentialAcceleration, 1 AlternatingAcceleration, 1 QuantifierFreeResult [2022-04-06 18:16:51,984 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-04-06 18:16:51,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1936089671, now seen corresponding path program 1 times [2022-04-06 18:16:51,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 18:16:51,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883752896] [2022-04-06 18:16:51,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 18:16:51,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 18:16:52,022 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-06 18:16:52,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [467311898] [2022-04-06 18:16:52,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 18:16:52,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 18:16:52,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 18:16:52,043 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 18:16:52,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-06 18:16:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:16:52,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 11 conjunts are in the unsatisfiable core [2022-04-06 18:16:52,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 18:16:52,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 18:16:52,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 18:16:52,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 18:16:52,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 18:16:52,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883752896] [2022-04-06 18:16:52,498 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-06 18:16:52,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467311898] [2022-04-06 18:16:52,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467311898] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 18:16:52,501 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-06 18:16:52,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2022-04-06 18:16:52,678 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 18:16:52,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1926422855] [2022-04-06 18:16:52,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1926422855] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:16:52,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:16:52,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-06 18:16:52,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805807108] [2022-04-06 18:16:52,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 18:16:52,682 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-04-06 18:16:52,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 18:16:52,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-04-06 18:16:52,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-04-06 18:16:52,686 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 9 states have internal predecessors, (20), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-04-06 18:16:52,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 18:16:52,783 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2022-04-06 18:16:52,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-06 18:16:52,784 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 9 states have internal predecessors, (20), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 30 [2022-04-06 18:16:52,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 18:16:52,785 INFO L225 Difference]: With dead ends: 33 [2022-04-06 18:16:52,785 INFO L226 Difference]: Without dead ends: 0 [2022-04-06 18:16:52,788 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-04-06 18:16:52,790 INFO L913 BasicCegarLoop]: 18 mSDtfsCounter, 9 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-06 18:16:52,791 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 114 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-06 18:16:52,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-06 18:16:52,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-06 18:16:52,794 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) [2022-04-06 18:16:52,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-06 18:16:52,794 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2022-04-06 18:16:52,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 18:16:52,795 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-06 18:16:52,795 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 9 states have internal predecessors, (20), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-04-06 18:16:52,795 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-06 18:16:52,795 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-06 18:16:52,797 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-06 18:16:52,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-06 18:16:53,007 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 18:16:53,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-04-06 18:16:59,943 INFO L882 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2022-04-06 18:16:59,943 INFO L882 garLoopResultBuilder]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2022-04-06 18:16:59,943 INFO L882 garLoopResultBuilder]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2022-04-06 18:16:59,944 INFO L885 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 6 8) the Hoare annotation is: true [2022-04-06 18:16:59,944 INFO L878 garLoopResultBuilder]: At program point L7(line 7) the Hoare annotation is: (= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|) [2022-04-06 18:16:59,944 INFO L878 garLoopResultBuilder]: At program point L7-2(lines 6 8) the Hoare annotation is: (and (not (= |assume_abort_if_not_#in~cond| 0)) (= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)) [2022-04-06 18:16:59,944 INFO L878 garLoopResultBuilder]: At program point assume_abort_if_notEXIT(lines 6 8) the Hoare annotation is: (and (not (= |assume_abort_if_not_#in~cond| 0)) (= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)) [2022-04-06 18:16:59,944 INFO L885 garLoopResultBuilder]: At program point mainENTRY(lines 17 40) the Hoare annotation is: true [2022-04-06 18:16:59,944 INFO L878 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (or (and (= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0))) (< main_~c~0 (+ main_~k~0 1))) (and (<= 0 main_~k~0) (<= main_~k~0 1) (exists ((v_main_~c~0_9 Int)) (and (<= 0 v_main_~c~0_9) (let ((.cse4 (* (- 1) v_main_~c~0_9)) (.cse5 (* (- 1) main_~c~0)) (.cse0 (= main_~x~0 0)) (.cse1 (= v_main_~c~0_9 main_~c~0)) (.cse2 (= main_~y~0 0))) (or (and .cse0 .cse1 .cse2) (let ((.cse3 (div (+ v_main_~c~0_9 .cse5 1) (- 2)))) (and (= (mod (+ v_main_~c~0_9 main_~c~0 1) 2) 0) (= (+ (* .cse3 2) 1) main_~y~0) (<= 0 .cse3) (= main_~x~0 (+ (* 2 (* .cse3 .cse3)) (* .cse3 3) 1)) (< .cse3 (+ (div (+ (- 1) main_~k~0 .cse4) 2) 1)))) (let ((.cse6 (div (+ v_main_~c~0_9 .cse5) (- 2)))) (and (< 0 .cse6) (= (* .cse6 2) main_~y~0) (= main_~x~0 (+ .cse6 (* 2 (* .cse6 .cse6)))) (< .cse6 (+ 2 (div (+ (- 2) main_~k~0 .cse4) 2))) (= (mod (+ v_main_~c~0_9 main_~c~0) 2) 0))) (and .cse0 (not (< v_main_~c~0_9 main_~k~0)) .cse1 .cse2))))))) [2022-04-06 18:16:59,945 INFO L878 garLoopResultBuilder]: At program point L28-1(lines 27 36) the Hoare annotation is: (let ((.cse0 (= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0))))) (or (and .cse0 (< main_~c~0 (+ main_~k~0 1))) (and .cse0 (= main_~y~0 0)))) [2022-04-06 18:16:59,945 INFO L878 garLoopResultBuilder]: At program point L27-2(lines 27 36) the Hoare annotation is: (or (and (= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0))) (< main_~c~0 (+ main_~k~0 1))) (and (<= 0 main_~k~0) (<= main_~k~0 1) (exists ((v_main_~c~0_9 Int)) (and (<= 0 v_main_~c~0_9) (let ((.cse4 (* (- 1) v_main_~c~0_9)) (.cse5 (* (- 1) main_~c~0)) (.cse0 (= main_~x~0 0)) (.cse1 (= v_main_~c~0_9 main_~c~0)) (.cse2 (= main_~y~0 0))) (or (and .cse0 .cse1 .cse2) (let ((.cse3 (div (+ v_main_~c~0_9 .cse5 1) (- 2)))) (and (= (mod (+ v_main_~c~0_9 main_~c~0 1) 2) 0) (= (+ (* .cse3 2) 1) main_~y~0) (<= 0 .cse3) (= main_~x~0 (+ (* 2 (* .cse3 .cse3)) (* .cse3 3) 1)) (< .cse3 (+ (div (+ (- 1) main_~k~0 .cse4) 2) 1)))) (let ((.cse6 (div (+ v_main_~c~0_9 .cse5) (- 2)))) (and (< 0 .cse6) (= (* .cse6 2) main_~y~0) (= main_~x~0 (+ .cse6 (* 2 (* .cse6 .cse6)))) (< .cse6 (+ 2 (div (+ (- 2) main_~k~0 .cse4) 2))) (= (mod (+ v_main_~c~0_9 main_~c~0) 2) 0))) (and .cse0 (not (< v_main_~c~0_9 main_~k~0)) .cse1 .cse2))))))) [2022-04-06 18:16:59,945 INFO L885 garLoopResultBuilder]: At program point mainEXIT(lines 17 40) the Hoare annotation is: true [2022-04-06 18:16:59,945 INFO L878 garLoopResultBuilder]: At program point L27-3(lines 27 36) the Hoare annotation is: (or (and (= main_~x~0 0) (= main_~y~0 0)) (and (= (+ (* main_~x~0 2) (* (- 2) main_~y~0)) (+ (- 1) main_~y~0 (let ((.cse0 (+ (- 1) main_~y~0))) (* .cse0 .cse0)))) (< main_~c~0 (+ main_~k~0 1)))) [2022-04-06 18:16:59,945 INFO L885 garLoopResultBuilder]: At program point L21(line 21) the Hoare annotation is: true [2022-04-06 18:16:59,945 INFO L878 garLoopResultBuilder]: At program point L21-1(line 21) the Hoare annotation is: (and (<= 0 main_~k~0) (<= main_~k~0 1)) [2022-04-06 18:16:59,945 INFO L885 garLoopResultBuilder]: At program point mainFINAL(lines 17 40) the Hoare annotation is: true [2022-04-06 18:16:59,945 INFO L885 garLoopResultBuilder]: At program point L37(line 37) the Hoare annotation is: true [2022-04-06 18:16:59,945 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2022-04-06 18:16:59,946 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-04-06 18:16:59,946 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2022-04-06 18:16:59,946 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2022-04-06 18:16:59,946 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-04-06 18:16:59,946 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-04-06 18:16:59,946 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2022-04-06 18:16:59,946 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 9 15) the Hoare annotation is: true [2022-04-06 18:16:59,946 INFO L878 garLoopResultBuilder]: At program point L11(lines 11 12) the Hoare annotation is: (not (<= 1 |__VERIFIER_assert_#in~cond|)) [2022-04-06 18:16:59,946 INFO L878 garLoopResultBuilder]: At program point L10(lines 10 13) the Hoare annotation is: (and (or (not (<= 1 |__VERIFIER_assert_#in~cond|)) (<= 1 __VERIFIER_assert_~cond)) (or (not (= |__VERIFIER_assert_#in~cond| 1)) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) [2022-04-06 18:16:59,946 INFO L878 garLoopResultBuilder]: At program point __VERIFIER_assertEXIT(lines 9 15) the Hoare annotation is: (or (not (= |__VERIFIER_assert_#in~cond| 1)) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2022-04-06 18:16:59,946 INFO L878 garLoopResultBuilder]: At program point L10-2(lines 9 15) the Hoare annotation is: (or (not (= |__VERIFIER_assert_#in~cond| 1)) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2022-04-06 18:16:59,947 INFO L878 garLoopResultBuilder]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) the Hoare annotation is: (not (<= 1 |__VERIFIER_assert_#in~cond|)) [2022-04-06 18:16:59,949 INFO L719 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2022-04-06 18:16:59,950 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-06 18:16:59,974 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:16:59,975 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:16:59,975 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:16:59,975 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:16:59,975 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:16:59,976 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:16:59,976 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:16:59,976 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:16:59,976 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:16:59,976 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:16:59,976 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:16:59,976 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:16:59,977 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:16:59,977 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:16:59,977 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:16:59,977 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:16:59,977 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:16:59,977 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:16:59,977 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:16:59,977 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:16:59,997 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:16:59,997 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:16:59,997 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:16:59,997 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,015 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,018 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,018 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,018 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,018 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,018 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,018 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,018 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,019 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,019 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,019 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,019 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,020 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,020 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,020 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,020 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 06:17:00 BoogieIcfgContainer [2022-04-06 18:17:00,029 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-06 18:17:00,030 INFO L158 Benchmark]: Toolchain (without parser) took 21969.41ms. Allocated memory was 183.5MB in the beginning and 220.2MB in the end (delta: 36.7MB). Free memory was 154.2MB in the beginning and 178.8MB in the end (delta: -24.7MB). Peak memory consumption was 130.3MB. Max. memory is 8.0GB. [2022-04-06 18:17:00,030 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 183.5MB. Free memory is still 142.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-06 18:17:00,030 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.97ms. Allocated memory is still 183.5MB. Free memory was 154.0MB in the beginning and 154.1MB in the end (delta: -109.8kB). Peak memory consumption was 8.9MB. Max. memory is 8.0GB. [2022-04-06 18:17:00,030 INFO L158 Benchmark]: Boogie Preprocessor took 62.43ms. Allocated memory is still 183.5MB. Free memory was 154.1MB in the beginning and 152.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-06 18:17:00,031 INFO L158 Benchmark]: RCFGBuilder took 362.76ms. Allocated memory is still 183.5MB. Free memory was 152.7MB in the beginning and 142.8MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-04-06 18:17:00,031 INFO L158 Benchmark]: TraceAbstraction took 21063.77ms. Allocated memory was 183.5MB in the beginning and 220.2MB in the end (delta: 36.7MB). Free memory was 142.2MB in the beginning and 178.8MB in the end (delta: -36.6MB). Peak memory consumption was 119.4MB. Max. memory is 8.0GB. [2022-04-06 18:17:00,034 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 183.5MB. Free memory is still 142.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 475.97ms. Allocated memory is still 183.5MB. Free memory was 154.0MB in the beginning and 154.1MB in the end (delta: -109.8kB). Peak memory consumption was 8.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 62.43ms. Allocated memory is still 183.5MB. Free memory was 154.1MB in the beginning and 152.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 362.76ms. Allocated memory is still 183.5MB. Free memory was 152.7MB in the beginning and 142.8MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 21063.77ms. Allocated memory was 183.5MB in the beginning and 220.2MB in the end (delta: 36.7MB). Free memory was 142.2MB in the beginning and 178.8MB in the end (delta: -36.6MB). Peak memory consumption was 119.4MB. 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_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~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: 12]: 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 6 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20.9s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 359 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 33 IncrementalHoareTripleChecker+Unchecked, 275 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 102 IncrementalHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 84 mSDtfsCounter, 102 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 75 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=3, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 27 LocationsWithAnnotation, 63 PreInvPairs, 95 NumberOfFragments, 570 HoareAnnotationTreeSize, 63 FomulaSimplifications, 23 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 27 FomulaSimplificationsInter, 3434 FormulaSimplificationTreeSizeReductionInter, 6.9s 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: 27]: Loop Invariant [2022-04-06 18:17:00,052 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,053 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,053 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,053 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,053 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,053 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,053 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,053 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,053 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,054 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,055 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,055 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,055 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,055 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,055 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,055 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,056 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,056 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,056 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,056 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,058 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,058 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,058 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,058 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,058 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,058 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,058 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,058 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,059 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,059 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,059 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,059 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,059 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,059 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,059 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,059 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,059 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,059 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,060 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] [2022-04-06 18:17:00,060 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~c~0_9,QUANTIFIED] Derived loop invariant: (x * 2 == y + y * y && c < k + 1) || ((0 <= k && k <= 1) && (\exists v_main_~c~0_9 : int :: 0 <= v_main_~c~0_9 && (((((x == 0 && v_main_~c~0_9 == c) && y == 0) || (((((v_main_~c~0_9 + c + 1) % 2 == 0 && (v_main_~c~0_9 + -1 * c + 1) / -2 * 2 + 1 == y) && 0 <= (v_main_~c~0_9 + -1 * c + 1) / -2) && x == 2 * ((v_main_~c~0_9 + -1 * c + 1) / -2 * ((v_main_~c~0_9 + -1 * c + 1) / -2)) + (v_main_~c~0_9 + -1 * c + 1) / -2 * 3 + 1) && (v_main_~c~0_9 + -1 * c + 1) / -2 < (-1 + k + -1 * v_main_~c~0_9) / 2 + 1)) || ((((0 < (v_main_~c~0_9 + -1 * c) / -2 && (v_main_~c~0_9 + -1 * c) / -2 * 2 == y) && x == (v_main_~c~0_9 + -1 * c) / -2 + 2 * ((v_main_~c~0_9 + -1 * c) / -2 * ((v_main_~c~0_9 + -1 * c) / -2))) && (v_main_~c~0_9 + -1 * c) / -2 < 2 + (-2 + k + -1 * v_main_~c~0_9) / 2) && (v_main_~c~0_9 + c) % 2 == 0)) || (((x == 0 && !(v_main_~c~0_9 < k)) && v_main_~c~0_9 == c) && y == 0)))) - ProcedureContractResult [Line: 6]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not: !(\old(cond) == 0) && cond == \old(cond) - ProcedureContractResult [Line: 17]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 9]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: !(\old(cond) == 1) || \old(cond) == cond RESULT: Ultimate proved your program to be correct! [2022-04-06 18:17:00,243 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...