/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/loops-crafted-1/sumt4.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 13:23:36,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 13:23:36,380 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 13:23:36,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-20 13:23:36,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 13:23:36,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 13:23:36,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 13:23:36,452 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-03-20 13:23:36,457 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 13:23:36,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 13:23:36,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 13:23:36,459 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 13:23:36,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 13:23:36,460 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 13:23:36,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 13:23:36,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 13:23:36,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 13:23:36,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 13:23:36,460 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 13:23:36,460 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 13:23:36,460 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 13:23:36,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 13:23:36,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 13:23:36,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 13:23:36,461 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 13:23:36,461 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 13:23:36,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 13:23:36,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 13:23:36,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-20 13:23:36,461 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-20 13:23:36,461 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-20 13:23:36,461 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 13:23:36,461 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-03-20 13:23:36,462 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 13:23:36,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 13:23:36,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 13:23:36,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 13:23:36,631 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 13:23:36,631 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 13:23:36,632 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt4.c [2022-03-20 13:23:36,668 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/847b9c490/e9f85261a09e44739e94986ac5fe40a4/FLAGf60b3d7c1 [2022-03-20 13:23:37,022 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 13:23:37,023 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt4.c [2022-03-20 13:23:37,032 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/847b9c490/e9f85261a09e44739e94986ac5fe40a4/FLAGf60b3d7c1 [2022-03-20 13:23:37,043 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/847b9c490/e9f85261a09e44739e94986ac5fe40a4 [2022-03-20 13:23:37,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 13:23:37,046 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 13:23:37,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 13:23:37,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 13:23:37,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 13:23:37,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 01:23:37" (1/1) ... [2022-03-20 13:23:37,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d0625c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:23:37, skipping insertion in model container [2022-03-20 13:23:37,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 01:23:37" (1/1) ... [2022-03-20 13:23:37,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 13:23:37,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 13:23:37,190 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/sumt4.c[403,416] [2022-03-20 13:23:37,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 13:23:37,205 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 13:23:37,212 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/sumt4.c[403,416] [2022-03-20 13:23:37,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 13:23:37,222 INFO L208 MainTranslator]: Completed translation [2022-03-20 13:23:37,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:23:37 WrapperNode [2022-03-20 13:23:37,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 13:23:37,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 13:23:37,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 13:23:37,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 13:23:37,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:23:37" (1/1) ... [2022-03-20 13:23:37,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:23:37" (1/1) ... [2022-03-20 13:23:37,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:23:37" (1/1) ... [2022-03-20 13:23:37,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:23:37" (1/1) ... [2022-03-20 13:23:37,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:23:37" (1/1) ... [2022-03-20 13:23:37,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:23:37" (1/1) ... [2022-03-20 13:23:37,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:23:37" (1/1) ... [2022-03-20 13:23:37,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 13:23:37,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 13:23:37,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 13:23:37,241 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 13:23:37,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:23:37" (1/1) ... [2022-03-20 13:23:37,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 13:23:37,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:23:37,271 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) [2022-03-20 13:23:37,278 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 [2022-03-20 13:23:37,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 13:23:37,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 13:23:37,297 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 13:23:37,298 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-03-20 13:23:37,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-20 13:23:37,298 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 13:23:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 13:23:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 13:23:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 13:23:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 13:23:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-03-20 13:23:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-20 13:23:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-03-20 13:23:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 13:23:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 13:23:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 13:23:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 13:23:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 13:23:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 13:23:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 13:23:37,339 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 13:23:37,340 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 13:23:39,628 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 13:23:39,632 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 13:23:39,632 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 13:23:39,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 01:23:39 BoogieIcfgContainer [2022-03-20 13:23:39,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 13:23:39,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 13:23:39,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 13:23:39,637 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 13:23:39,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 01:23:37" (1/3) ... [2022-03-20 13:23:39,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3055c2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 01:23:39, skipping insertion in model container [2022-03-20 13:23:39,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:23:37" (2/3) ... [2022-03-20 13:23:39,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3055c2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 01:23:39, skipping insertion in model container [2022-03-20 13:23:39,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 01:23:39" (3/3) ... [2022-03-20 13:23:39,638 INFO L111 eAbstractionObserver]: Analyzing ICFG sumt4.c [2022-03-20 13:23:39,641 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-20 13:23:39,641 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 13:23:39,667 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 13:23:39,671 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 [2022-03-20 13:23:39,671 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 13:23:39,679 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 16 states have (on average 1.5) internal successors, (24), 17 states have internal predecessors, (24), 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) [2022-03-20 13:23:39,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-03-20 13:23:39,684 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:23:39,684 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:23:39,685 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:23:39,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:23:39,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1709511738, now seen corresponding path program 1 times [2022-03-20 13:23:39,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:23:39,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1897608143] [2022-03-20 13:23:39,700 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:23:39,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1709511738, now seen corresponding path program 2 times [2022-03-20 13:23:39,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:23:39,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951971629] [2022-03-20 13:23:39,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:23:39,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:23:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:23:40,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:23:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:23:40,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:23:40,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:23:40,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951971629] [2022-03-20 13:23:40,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951971629] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:23:40,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:23:40,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 13:23:40,047 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:23:40,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1897608143] [2022-03-20 13:23:40,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1897608143] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:23:40,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:23:40,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 13:23:40,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836972705] [2022-03-20 13:23:40,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:23:40,050 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 13:23:40,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:23:40,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 13:23:40,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 13:23:40,069 INFO L87 Difference]: Start difference. First operand has 24 states, 16 states have (on average 1.5) internal successors, (24), 17 states have internal predecessors, (24), 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 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:23:42,185 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:23:44,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:23:44,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:23:44,550 INFO L93 Difference]: Finished difference Result 51 states and 68 transitions. [2022-03-20 13:23:44,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 13:23:44,552 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-03-20 13:23:44,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:23:44,556 INFO L225 Difference]: With dead ends: 51 [2022-03-20 13:23:44,556 INFO L226 Difference]: Without dead ends: 19 [2022-03-20 13:23:44,558 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-03-20 13:23:44,560 INFO L913 BasicCegarLoop]: 20 mSDtfsCounter, 36 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-20 13:23:44,561 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 41 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 72 Invalid, 2 Unknown, 0 Unchecked, 4.4s Time] [2022-03-20 13:23:44,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-03-20 13:23:44,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-03-20 13:23:44,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 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) [2022-03-20 13:23:44,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2022-03-20 13:23:44,598 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 12 [2022-03-20 13:23:44,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:23:44,598 INFO L478 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2022-03-20 13:23:44,598 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:23:44,599 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-03-20 13:23:44,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-03-20 13:23:44,599 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:23:44,599 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:23:44,599 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 13:23:44,599 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:23:44,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:23:44,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1996045709, now seen corresponding path program 1 times [2022-03-20 13:23:44,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:23:44,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [848820296] [2022-03-20 13:23:44,768 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-03-20 13:23:44,769 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-03-20 13:23:44,770 INFO L85 PathProgramCache]: Analyzing trace with hash -46561988, now seen corresponding path program 1 times [2022-03-20 13:23:44,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:23:44,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588012205] [2022-03-20 13:23:44,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:23:44,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:23:44,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:23:45,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:23:45,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:23:45,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:23:45,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:23:45,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588012205] [2022-03-20 13:23:45,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588012205] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:23:45,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:23:45,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 13:23:45,477 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:23:45,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [848820296] [2022-03-20 13:23:45,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [848820296] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:23:45,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:23:45,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-20 13:23:45,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328489138] [2022-03-20 13:23:45,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:23:45,479 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-20 13:23:45,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:23:45,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-20 13:23:45,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-03-20 13:23:45,480 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:23:47,739 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:23:47,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:23:47,957 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2022-03-20 13:23:47,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-20 13:23:47,958 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-03-20 13:23:47,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:23:47,959 INFO L225 Difference]: With dead ends: 36 [2022-03-20 13:23:47,959 INFO L226 Difference]: Without dead ends: 23 [2022-03-20 13:23:47,959 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-03-20 13:23:47,960 INFO L913 BasicCegarLoop]: 12 mSDtfsCounter, 26 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 13:23:47,960 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 48 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 93 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 13:23:47,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-03-20 13:23:47,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-03-20 13:23:47,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 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) [2022-03-20 13:23:47,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2022-03-20 13:23:47,965 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 15 [2022-03-20 13:23:47,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:23:47,965 INFO L478 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-03-20 13:23:47,965 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:23:47,965 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-03-20 13:23:47,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-03-20 13:23:47,966 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:23:47,966 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:23:47,966 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 13:23:47,966 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:23:47,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:23:47,966 INFO L85 PathProgramCache]: Analyzing trace with hash -376560181, now seen corresponding path program 1 times [2022-03-20 13:23:47,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:23:47,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1459597964] [2022-03-20 13:23:48,113 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-03-20 13:28:27,340 WARN L232 SmtUtils]: Spent 4.65m on a formula simplification. DAG size of input: 83 DAG size of output: 62 (called from [L 564] de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.jordan.JordanLoopAcceleration.buildAccelerationFormula) [2022-03-20 13:28:27,342 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 13:28:27,342 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-03-20 13:28:27,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1276973435, now seen corresponding path program 1 times [2022-03-20 13:28:27,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:28:27,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592477199] [2022-03-20 13:28:27,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:28:27,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:28:27,357 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ main_~l~0_7 (* (- 3) .aux_div_aux_mod_v_it_3_42_25.0) (* (- 4294967296) .aux_div_v_it_3_42.2) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.1) 1) 0)) [2022-03-20 13:28:27,357 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 3) .aux_div_aux_mod_v_it_3_42_25.0) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.1) 4294967296) 0) [2022-03-20 13:28:27,358 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.1) 3) 0) [2022-03-20 13:28:27,358 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 3 .aux_div_aux_mod_v_it_3_42_25.0) (* 4294967296 .aux_div_v_it_3_42.2) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.1) (* (- 1) main_~l~0_9) 1) 0)) [2022-03-20 13:28:27,358 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* (- 3) .aux_div_aux_mod_v_it_3_42_25.0) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.1)) 0)) [2022-03-20 13:28:27,358 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.1) 0)) [2022-03-20 13:28:27,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:28:27,462 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ main_~l~0_7 (* (- 3) .aux_div_aux_mod_v_it_3_42_25.3) (* (- 4294967296) .aux_div_v_it_3_42.5) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.4) 1) 0)) [2022-03-20 13:28:27,462 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 3) .aux_div_aux_mod_v_it_3_42_25.3) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.4) 4294967296) 0) [2022-03-20 13:28:27,462 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.4) 3) 0) [2022-03-20 13:28:27,462 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 3 .aux_div_aux_mod_v_it_3_42_25.3) (* 4294967296 .aux_div_v_it_3_42.5) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.4) (* (- 1) main_~l~0_9) 1) 0)) [2022-03-20 13:28:27,462 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* (- 3) .aux_div_aux_mod_v_it_3_42_25.3) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.4)) 0)) [2022-03-20 13:28:27,463 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.4) 0)) [2022-03-20 13:28:27,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:28:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:28:27,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:28:27,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:28:27,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592477199] [2022-03-20 13:28:27,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592477199] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:28:27,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131390690] [2022-03-20 13:28:27,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:28:27,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:28:27,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:28:28,006 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) [2022-03-20 13:28:28,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process