/usr/bin/java -ea -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/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/vnew2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-e106359-m [2022-04-15 13:13:18,215 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-15 13:13:18,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-15 13:13:18,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-15 13:13:18,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-15 13:13:18,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-15 13:13:18,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-15 13:13:18,284 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-04-15 13:13:18,290 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-15 13:13:18,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-15 13:13:18,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-15 13:13:18,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-15 13:13:18,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-15 13:13:18,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-15 13:13:18,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-15 13:13:18,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-15 13:13:18,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-15 13:13:18,292 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-15 13:13:18,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-15 13:13:18,292 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-15 13:13:18,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-15 13:13:18,293 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-15 13:13:18,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-15 13:13:18,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 13:13:18,293 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-15 13:13:18,293 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-15 13:13:18,293 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-15 13:13:18,293 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-15 13:13:18,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-15 13:13:18,293 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-04-15 13:13:18,293 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-15 13:13:18,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-15 13:13:18,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-15 13:13:18,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-15 13:13:18,486 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-15 13:13:18,486 INFO L275 PluginConnector]: CDTParser initialized [2022-04-15 13:13:18,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/vnew2.c [2022-04-15 13:13:18,533 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e01e6adf7/6228fe02546c4160b9073e08d55d5394/FLAGe26408d70 [2022-04-15 13:13:18,876 INFO L306 CDTParser]: Found 1 translation units. [2022-04-15 13:13:18,876 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/vnew2.c [2022-04-15 13:13:18,880 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e01e6adf7/6228fe02546c4160b9073e08d55d5394/FLAGe26408d70 [2022-04-15 13:13:18,887 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e01e6adf7/6228fe02546c4160b9073e08d55d5394 [2022-04-15 13:13:18,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-15 13:13:18,890 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-15 13:13:18,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-15 13:13:18,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-15 13:13:18,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-15 13:13:18,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 01:13:18" (1/1) ... [2022-04-15 13:13:18,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12d90da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:13:18, skipping insertion in model container [2022-04-15 13:13:18,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 01:13:18" (1/1) ... [2022-04-15 13:13:18,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-15 13:13:18,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-15 13:13:19,035 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/vnew2.c[403,416] [2022-04-15 13:13:19,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 13:13:19,048 INFO L203 MainTranslator]: Completed pre-run [2022-04-15 13:13:19,055 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/vnew2.c[403,416] [2022-04-15 13:13:19,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 13:13:19,066 INFO L208 MainTranslator]: Completed translation [2022-04-15 13:13:19,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:13:19 WrapperNode [2022-04-15 13:13:19,066 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-15 13:13:19,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-15 13:13:19,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-15 13:13:19,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-15 13:13:19,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:13:19" (1/1) ... [2022-04-15 13:13:19,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:13:19" (1/1) ... [2022-04-15 13:13:19,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:13:19" (1/1) ... [2022-04-15 13:13:19,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:13:19" (1/1) ... [2022-04-15 13:13:19,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:13:19" (1/1) ... [2022-04-15 13:13:19,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:13:19" (1/1) ... [2022-04-15 13:13:19,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:13:19" (1/1) ... [2022-04-15 13:13:19,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-15 13:13:19,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-15 13:13:19,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-15 13:13:19,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-15 13:13:19,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:13:19" (1/1) ... [2022-04-15 13:13:19,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 13:13:19,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 13:13:19,118 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) [2022-04-15 13:13:19,123 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 [2022-04-15 13:13:19,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-15 13:13:19,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-15 13:13:19,153 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-15 13:13:19,153 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-15 13:13:19,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-15 13:13:19,153 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-15 13:13:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-15 13:13:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-15 13:13:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-15 13:13:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-15 13:13:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-15 13:13:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-15 13:13:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-04-15 13:13:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-15 13:13:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-15 13:13:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-15 13:13:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-15 13:13:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-15 13:13:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-15 13:13:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-15 13:13:19,191 INFO L234 CfgBuilder]: Building ICFG [2022-04-15 13:13:19,192 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-15 13:13:19,271 INFO L275 CfgBuilder]: Performing block encoding [2022-04-15 13:13:19,275 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-15 13:13:19,275 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-15 13:13:19,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 01:13:19 BoogieIcfgContainer [2022-04-15 13:13:19,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-15 13:13:19,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-15 13:13:19,278 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-15 13:13:19,286 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-15 13:13:19,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 01:13:18" (1/3) ... [2022-04-15 13:13:19,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d7fd2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 01:13:19, skipping insertion in model container [2022-04-15 13:13:19,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:13:19" (2/3) ... [2022-04-15 13:13:19,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d7fd2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 01:13:19, skipping insertion in model container [2022-04-15 13:13:19,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 01:13:19" (3/3) ... [2022-04-15 13:13:19,288 INFO L111 eAbstractionObserver]: Analyzing ICFG vnew2.c [2022-04-15 13:13:19,291 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-15 13:13:19,291 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-15 13:13:19,316 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-15 13:13:19,320 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 [2022-04-15 13:13:19,321 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-15 13:13:19,348 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 15 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 13:13:19,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-04-15 13:13:19,352 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 13:13:19,353 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 13:13:19,353 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 13:13:19,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 13:13:19,356 INFO L85 PathProgramCache]: Analyzing trace with hash -818707046, now seen corresponding path program 1 times [2022-04-15 13:13:19,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 13:13:19,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1978042337] [2022-04-15 13:13:19,384 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-15 13:13:19,384 INFO L85 PathProgramCache]: Analyzing trace with hash -818707046, now seen corresponding path program 2 times [2022-04-15 13:13:19,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 13:13:19,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432478292] [2022-04-15 13:13:19,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 13:13:19,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 13:13:19,491 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-15 13:13:19,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [972268213] [2022-04-15 13:13:19,492 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-15 13:13:19,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 13:13:19,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 13:13:19,494 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) [2022-04-15 13:13:19,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-15 13:13:19,539 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-04-15 13:13:19,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-15 13:13:19,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 8 conjunts are in the unsatisfiable core [2022-04-15 13:13:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 13:13:19,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-15 13:13:19,654 INFO L272 TraceCheckUtils]: 0: Hoare triple {24#true} call ULTIMATE.init(); {24#true} is VALID [2022-04-15 13:13:19,654 INFO L290 TraceCheckUtils]: 1: Hoare triple {24#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(8, 2);call #Ultimate.allocInit(12, 3);~SIZE~0 := 20000001; {24#true} is VALID [2022-04-15 13:13:19,655 INFO L290 TraceCheckUtils]: 2: Hoare triple {24#true} assume true; {24#true} is VALID [2022-04-15 13:13:19,655 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {24#true} {24#true} #55#return; {24#true} is VALID [2022-04-15 13:13:19,655 INFO L272 TraceCheckUtils]: 4: Hoare triple {24#true} call #t~ret5 := main(); {24#true} is VALID [2022-04-15 13:13:19,656 INFO L290 TraceCheckUtils]: 5: Hoare triple {24#true} havoc ~n~0;havoc ~i~0;havoc ~k~0;havoc ~j~0;~n~0 := #t~nondet4;havoc #t~nondet4; {24#true} is VALID [2022-04-15 13:13:19,656 INFO L290 TraceCheckUtils]: 6: Hoare triple {24#true} assume !!(~n~0 % 4294967296 <= ~SIZE~0 % 4294967296);~k~0 := 0;~j~0 := ~k~0;~i~0 := ~j~0; {47#(= main_~i~0 0)} is VALID [2022-04-15 13:13:19,657 INFO L290 TraceCheckUtils]: 7: Hoare triple {47#(= main_~i~0 0)} assume !(~i~0 % 4294967296 < ~n~0 % 4294967296); {51#(not (< 0 (mod main_~n~0 4294967296)))} is VALID [2022-04-15 13:13:19,657 INFO L290 TraceCheckUtils]: 8: Hoare triple {51#(not (< 0 (mod main_~n~0 4294967296)))} assume ~n~0 % 4294967296 > 0; {25#false} is VALID [2022-04-15 13:13:19,658 INFO L272 TraceCheckUtils]: 9: Hoare triple {25#false} call __VERIFIER_assert((if (~i~0 % 4294967296 == ~j~0 % 4294967296 && ~j~0 % 4294967296 == ~k~0 % 4294967296) && 0 != (if ~i~0 % 4294967296 < 0 && 0 != ~i~0 % 4294967296 % ((2 + ~SIZE~0) % 4294967296) then (if (2 + ~SIZE~0) % 4294967296 < 0 then ~i~0 % 4294967296 % ((2 + ~SIZE~0) % 4294967296) + (2 + ~SIZE~0) % 4294967296 else ~i~0 % 4294967296 % ((2 + ~SIZE~0) % 4294967296) - (2 + ~SIZE~0) % 4294967296) else ~i~0 % 4294967296 % ((2 + ~SIZE~0) % 4294967296)) % 4294967296 then 1 else 0)); {25#false} is VALID [2022-04-15 13:13:19,659 INFO L290 TraceCheckUtils]: 10: Hoare triple {25#false} ~cond := #in~cond; {25#false} is VALID [2022-04-15 13:13:19,659 INFO L290 TraceCheckUtils]: 11: Hoare triple {25#false} assume 0 == ~cond; {25#false} is VALID [2022-04-15 13:13:19,659 INFO L290 TraceCheckUtils]: 12: Hoare triple {25#false} assume !false; {25#false} is VALID [2022-04-15 13:13:19,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 13:13:19,660 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-15 13:13:19,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 13:13:19,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432478292] [2022-04-15 13:13:19,662 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-15 13:13:19,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972268213] [2022-04-15 13:13:19,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972268213] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 13:13:19,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 13:13:19,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-15 13:13:19,665 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-15 13:13:19,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1978042337] [2022-04-15 13:13:19,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1978042337] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 13:13:19,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 13:13:19,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-15 13:13:19,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052139605] [2022-04-15 13:13:19,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 13:13:19,670 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-04-15 13:13:19,671 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 13:13:19,673 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 13:13:19,694 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 13:13:19,694 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-15 13:13:19,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-15 13:13:19,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-15 13:13:19,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-15 13:13:19,711 INFO L87 Difference]: Start difference. First operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 15 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 13:13:19,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 13:13:19,791 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2022-04-15 13:13:19,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-15 13:13:19,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-04-15 13:13:19,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 13:13:19,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 13:13:19,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2022-04-15 13:13:19,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 13:13:19,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2022-04-15 13:13:19,800 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 51 transitions. [2022-04-15 13:13:19,838 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 13:13:19,844 INFO L225 Difference]: With dead ends: 42 [2022-04-15 13:13:19,844 INFO L226 Difference]: Without dead ends: 15 [2022-04-15 13:13:19,846 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-15 13:13:19,849 INFO L913 BasicCegarLoop]: 22 mSDtfsCounter, 9 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-15 13:13:19,850 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 59 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-15 13:13:19,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-04-15 13:13:19,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-04-15 13:13:19,871 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 13:13:19,871 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 13:13:19,871 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 13:13:19,872 INFO L87 Difference]: Start difference. First operand 15 states. Second operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 13:13:19,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 13:13:19,873 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-04-15 13:13:19,873 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-04-15 13:13:19,873 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 13:13:19,873 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 13:13:19,874 INFO L74 IsIncluded]: Start isIncluded. First operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 15 states. [2022-04-15 13:13:19,874 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 15 states. [2022-04-15 13:13:19,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 13:13:19,875 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-04-15 13:13:19,875 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-04-15 13:13:19,875 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 13:13:19,876 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 13:13:19,876 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 13:13:19,876 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 13:13:19,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 13:13:19,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-04-15 13:13:19,878 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2022-04-15 13:13:19,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 13:13:19,878 INFO L478 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-04-15 13:13:19,878 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 13:13:19,878 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 15 states and 15 transitions. [2022-04-15 13:13:19,889 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 13:13:19,889 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-04-15 13:13:19,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-15 13:13:19,890 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 13:13:19,890 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 13:13:19,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-15 13:13:20,108 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-04-15 13:13:20,108 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 13:13:20,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 13:13:20,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1914943323, now seen corresponding path program 1 times [2022-04-15 13:13:20,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 13:13:20,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1690579653] [2022-04-15 13:13:20,491 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-04-15 13:13:20,494 INFO L85 PathProgramCache]: Analyzing trace with hash 564616058, now seen corresponding path program 1 times [2022-04-15 13:13:20,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 13:13:20,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755469608] [2022-04-15 13:13:20,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 13:13:20,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 13:13:20,531 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-15 13:13:20,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [309752240] [2022-04-15 13:13:20,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 13:13:20,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 13:13:20,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 13:13:20,533 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) [2022-04-15 13:13:20,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-15 13:13:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 13:13:20,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 9 conjunts are in the unsatisfiable core [2022-04-15 13:13:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 13:13:20,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-15 13:13:20,698 INFO L272 TraceCheckUtils]: 0: Hoare triple {212#true} call ULTIMATE.init(); {212#true} is VALID [2022-04-15 13:13:20,698 INFO L290 TraceCheckUtils]: 1: Hoare triple {212#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(8, 2);call #Ultimate.allocInit(12, 3);~SIZE~0 := 20000001; {212#true} is VALID [2022-04-15 13:13:20,698 INFO L290 TraceCheckUtils]: 2: Hoare triple {212#true} assume true; {212#true} is VALID [2022-04-15 13:13:20,698 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {212#true} {212#true} #55#return; {212#true} is VALID [2022-04-15 13:13:20,699 INFO L272 TraceCheckUtils]: 4: Hoare triple {212#true} call #t~ret5 := main(); {212#true} is VALID [2022-04-15 13:13:20,699 INFO L290 TraceCheckUtils]: 5: Hoare triple {212#true} havoc ~n~0;havoc ~i~0;havoc ~k~0;havoc ~j~0;~n~0 := #t~nondet4;havoc #t~nondet4; {212#true} is VALID [2022-04-15 13:13:20,700 INFO L290 TraceCheckUtils]: 6: Hoare triple {212#true} assume !!(~n~0 % 4294967296 <= ~SIZE~0 % 4294967296);~k~0 := 0;~j~0 := ~k~0;~i~0 := ~j~0; {235#(and (= main_~i~0 main_~j~0) (= main_~k~0 0) (= main_~k~0 main_~j~0))} is VALID [2022-04-15 13:13:20,702 INFO L290 TraceCheckUtils]: 7: Hoare triple {235#(and (= main_~i~0 main_~j~0) (= main_~k~0 0) (= main_~k~0 main_~j~0))} [59] L21-2-->L21-3_primed: Formula: (or (and (= v_main_~j~0_In_1 v_main_~j~0_Out_2) (= v_main_~n~0_In_1 v_main_~n~0_In_1) (= v_main_~i~0_In_1 v_main_~i~0_Out_2) (= v_main_~k~0_In_1 v_main_~k~0_Out_2)) (let ((.cse1 (* (- 3) v_main_~k~0_In_1)) (.cse0 (* (- 3) v_main_~k~0_Out_2))) (and (< (mod (+ v_main_~i~0_Out_2 4294967293) 4294967296) (mod v_main_~n~0_In_1 4294967296)) (= (+ (* 3 v_main_~j~0_Out_2) .cse0) (+ .cse1 (* 3 v_main_~j~0_In_1))) (= (* v_main_~n~0_In_1 3) 0) (<= 0 (div (+ (* (- 1) v_main_~k~0_Out_2) v_main_~k~0_In_1) (- 3))) (= (+ (* v_main_~i~0_In_1 3) .cse1) (+ .cse0 (* v_main_~i~0_Out_2 3))) (= (mod (+ (* 2 v_main_~k~0_Out_2) v_main_~k~0_In_1) 3) 0)))) InVars {main_~i~0=v_main_~i~0_In_1, main_~n~0=v_main_~n~0_In_1, main_~k~0=v_main_~k~0_In_1, main_~j~0=v_main_~j~0_In_1} OutVars{main_~i~0=v_main_~i~0_Out_2, main_~n~0=v_main_~n~0_In_1, main_~k~0=v_main_~k~0_Out_2, main_~j~0=v_main_~j~0_Out_2} AuxVars[] AssignedVars[main_~k~0, main_~j~0, main_~i~0] {239#(= main_~i~0 0)} is VALID [2022-04-15 13:13:20,703 INFO L290 TraceCheckUtils]: 8: Hoare triple {239#(= main_~i~0 0)} [58] L21-3_primed-->L21-3: Formula: (not (< (mod v_main_~i~0_1 4294967296) (mod v_main_~n~0_2 4294967296))) InVars {main_~i~0=v_main_~i~0_1, main_~n~0=v_main_~n~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_~n~0=v_main_~n~0_2} AuxVars[] AssignedVars[] {243#(not (< 0 (mod main_~n~0 4294967296)))} is VALID [2022-04-15 13:13:20,704 INFO L290 TraceCheckUtils]: 9: Hoare triple {243#(not (< 0 (mod main_~n~0 4294967296)))} assume ~n~0 % 4294967296 > 0; {213#false} is VALID [2022-04-15 13:13:20,704 INFO L272 TraceCheckUtils]: 10: Hoare triple {213#false} call __VERIFIER_assert((if (~i~0 % 4294967296 == ~j~0 % 4294967296 && ~j~0 % 4294967296 == ~k~0 % 4294967296) && 0 != (if ~i~0 % 4294967296 < 0 && 0 != ~i~0 % 4294967296 % ((2 + ~SIZE~0) % 4294967296) then (if (2 + ~SIZE~0) % 4294967296 < 0 then ~i~0 % 4294967296 % ((2 + ~SIZE~0) % 4294967296) + (2 + ~SIZE~0) % 4294967296 else ~i~0 % 4294967296 % ((2 + ~SIZE~0) % 4294967296) - (2 + ~SIZE~0) % 4294967296) else ~i~0 % 4294967296 % ((2 + ~SIZE~0) % 4294967296)) % 4294967296 then 1 else 0)); {213#false} is VALID [2022-04-15 13:13:20,704 INFO L290 TraceCheckUtils]: 11: Hoare triple {213#false} ~cond := #in~cond; {213#false} is VALID [2022-04-15 13:13:20,704 INFO L290 TraceCheckUtils]: 12: Hoare triple {213#false} assume 0 == ~cond; {213#false} is VALID [2022-04-15 13:13:20,704 INFO L290 TraceCheckUtils]: 13: Hoare triple {213#false} assume !false; {213#false} is VALID [2022-04-15 13:13:20,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 13:13:20,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-15 13:13:20,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 13:13:20,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755469608] [2022-04-15 13:13:20,705 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-15 13:13:20,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309752240] [2022-04-15 13:13:20,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309752240] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 13:13:20,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 13:13:20,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-15 13:13:20,749 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-15 13:13:20,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1690579653] [2022-04-15 13:13:20,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1690579653] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 13:13:20,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 13:13:20,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-15 13:13:20,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656223249] [2022-04-15 13:13:20,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 13:13:20,750 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-04-15 13:13:20,750 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 13:13:20,751 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 13:13:20,761 WARN L143 InductivityCheck]: Transition 256#(and (< (mod (+ main_~k~0 4294967293) 4294967296) (mod main_~n~0 4294967296)) (= main_~i~0 main_~k~0) (= (+ main_~k~0 (- 3)) 0) (= main_~k~0 main_~j~0)) ( _ , assume !(~i~0 % 4294967296 < ~n~0 % 4294967296); , 243#(not (< 0 (mod main_~n~0 4294967296))) ) not inductive [2022-04-15 13:13:20,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-15 13:13:20,977 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,SelfDestructingSolverStorable1 [2022-04-15 13:13:20,978 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inductivity failed at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.evaluateResult(InductivityCheck.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.checkInductivity(InductivityCheck.java:103) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.(InductivityCheck.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.constructInterpolantAutomaton(BasicCegarLoop.java:682) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.constructRefinementAutomaton(AbstractCegarLoop.java:547) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:411) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:301) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:261) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-04-15 13:13:20,981 INFO L158 Benchmark]: Toolchain (without parser) took 2091.03ms. Allocated memory was 182.5MB in the beginning and 233.8MB in the end (delta: 51.4MB). Free memory was 131.4MB in the beginning and 165.4MB in the end (delta: -34.0MB). Peak memory consumption was 18.3MB. Max. memory is 8.0GB. [2022-04-15 13:13:20,981 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 182.5MB. Free memory was 148.2MB in the beginning and 148.0MB in the end (delta: 151.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-15 13:13:20,982 INFO L158 Benchmark]: CACSL2BoogieTranslator took 175.56ms. Allocated memory is still 182.5MB. Free memory was 131.2MB in the beginning and 157.8MB in the end (delta: -26.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-15 13:13:20,982 INFO L158 Benchmark]: Boogie Preprocessor took 19.25ms. Allocated memory is still 182.5MB. Free memory was 157.8MB in the beginning and 156.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-15 13:13:20,982 INFO L158 Benchmark]: RCFGBuilder took 190.45ms. Allocated memory is still 182.5MB. Free memory was 156.4MB in the beginning and 145.7MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-15 13:13:20,982 INFO L158 Benchmark]: TraceAbstraction took 1702.55ms. Allocated memory was 182.5MB in the beginning and 233.8MB in the end (delta: 51.4MB). Free memory was 145.3MB in the beginning and 165.4MB in the end (delta: -20.1MB). Peak memory consumption was 32.2MB. Max. memory is 8.0GB. [2022-04-15 13:13:20,984 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 182.5MB. Free memory was 148.2MB in the beginning and 148.0MB in the end (delta: 151.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 175.56ms. Allocated memory is still 182.5MB. Free memory was 131.2MB in the beginning and 157.8MB in the end (delta: -26.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.25ms. Allocated memory is still 182.5MB. Free memory was 157.8MB in the beginning and 156.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 190.45ms. Allocated memory is still 182.5MB. Free memory was 156.4MB in the beginning and 145.7MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1702.55ms. Allocated memory was 182.5MB in the beginning and 233.8MB in the end (delta: 51.4MB). Free memory was 145.3MB in the beginning and 165.4MB in the end (delta: -20.1MB). Peak memory consumption was 32.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inductivity failed de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inductivity failed: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.evaluateResult(InductivityCheck.java:145) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-04-15 13:13:21,005 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...