/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/ss3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-09 23:25:26,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-09 23:25:26,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-09 23:25:26,239 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-09 23:25:26,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-09 23:25:26,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-09 23:25:26,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-09 23:25:26,242 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-09 23:25:26,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-09 23:25:26,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-09 23:25:26,244 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-09 23:25:26,245 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-09 23:25:26,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-09 23:25:26,246 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-09 23:25:26,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-09 23:25:26,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-09 23:25:26,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-09 23:25:26,249 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-09 23:25:26,252 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-09 23:25:26,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-09 23:25:26,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-09 23:25:26,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-09 23:25:26,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-09 23:25:26,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-09 23:25:26,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-09 23:25:26,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-09 23:25:26,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-09 23:25:26,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-09 23:25:26,272 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf [2022-01-09 23:25:26,297 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-09 23:25:26,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-09 23:25:26,298 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-09 23:25:26,298 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-09 23:25:26,298 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-09 23:25:26,298 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-09 23:25:26,299 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-09 23:25:26,299 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-09 23:25:26,299 INFO L138 SettingsManager]: * Use SBE=true [2022-01-09 23:25:26,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-09 23:25:26,300 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-09 23:25:26,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-09 23:25:26,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-09 23:25:26,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-09 23:25:26,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-09 23:25:26,300 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-09 23:25:26,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-09 23:25:26,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-09 23:25:26,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-09 23:25:26,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-09 23:25:26,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-09 23:25:26,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-09 23:25:26,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-09 23:25:26,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-09 23:25:26,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-09 23:25:26,302 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-09 23:25:26,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-09 23:25:26,302 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-09 23:25:26,302 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-09 23:25:26,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-09 23:25:26,302 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-09 23:25:26,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-09 23:25:26,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-09 23:25:26,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-09 23:25:26,511 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-09 23:25:26,513 INFO L275 PluginConnector]: CDTParser initialized [2022-01-09 23:25:26,514 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ss3.c [2022-01-09 23:25:26,569 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5d83981a/0df6e312071c400080a975d3abcd2e5b/FLAG33e0a8dc1 [2022-01-09 23:25:26,925 INFO L306 CDTParser]: Found 1 translation units. [2022-01-09 23:25:26,926 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/ss3.c [2022-01-09 23:25:26,933 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5d83981a/0df6e312071c400080a975d3abcd2e5b/FLAG33e0a8dc1 [2022-01-09 23:25:26,942 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5d83981a/0df6e312071c400080a975d3abcd2e5b [2022-01-09 23:25:26,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-09 23:25:26,947 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-09 23:25:26,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-09 23:25:26,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-09 23:25:26,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-09 23:25:26,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 11:25:26" (1/1) ... [2022-01-09 23:25:26,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c342f19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:25:26, skipping insertion in model container [2022-01-09 23:25:26,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 11:25:26" (1/1) ... [2022-01-09 23:25:26,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-09 23:25:26,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-09 23:25:27,077 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/ss3.c[586,599] [2022-01-09 23:25:27,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-09 23:25:27,115 INFO L203 MainTranslator]: Completed pre-run [2022-01-09 23:25:27,125 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/ss3.c[586,599] [2022-01-09 23:25:27,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-09 23:25:27,142 INFO L208 MainTranslator]: Completed translation [2022-01-09 23:25:27,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:25:27 WrapperNode [2022-01-09 23:25:27,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-09 23:25:27,143 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-09 23:25:27,144 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-09 23:25:27,144 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-09 23:25:27,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:25:27" (1/1) ... [2022-01-09 23:25:27,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:25:27" (1/1) ... [2022-01-09 23:25:27,179 INFO L137 Inliner]: procedures = 17, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 104 [2022-01-09 23:25:27,179 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-09 23:25:27,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-09 23:25:27,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-09 23:25:27,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-09 23:25:27,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:25:27" (1/1) ... [2022-01-09 23:25:27,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:25:27" (1/1) ... [2022-01-09 23:25:27,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:25:27" (1/1) ... [2022-01-09 23:25:27,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:25:27" (1/1) ... [2022-01-09 23:25:27,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:25:27" (1/1) ... [2022-01-09 23:25:27,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:25:27" (1/1) ... [2022-01-09 23:25:27,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:25:27" (1/1) ... [2022-01-09 23:25:27,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-09 23:25:27,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-09 23:25:27,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-09 23:25:27,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-09 23:25:27,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:25:27" (1/1) ... [2022-01-09 23:25:27,219 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-09 23:25:27,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 23:25:27,252 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) [2022-01-09 23:25:27,258 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 [2022-01-09 23:25:27,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-09 23:25:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-09 23:25:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-09 23:25:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-09 23:25:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-09 23:25:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-09 23:25:27,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-09 23:25:27,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-09 23:25:27,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-09 23:25:27,366 INFO L234 CfgBuilder]: Building ICFG [2022-01-09 23:25:27,367 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-09 23:25:27,547 INFO L275 CfgBuilder]: Performing block encoding [2022-01-09 23:25:27,552 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-09 23:25:27,552 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-01-09 23:25:27,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 11:25:27 BoogieIcfgContainer [2022-01-09 23:25:27,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-09 23:25:27,554 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-09 23:25:27,554 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-09 23:25:27,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-09 23:25:27,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 11:25:26" (1/3) ... [2022-01-09 23:25:27,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6424b1f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 11:25:27, skipping insertion in model container [2022-01-09 23:25:27,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:25:27" (2/3) ... [2022-01-09 23:25:27,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6424b1f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 11:25:27, skipping insertion in model container [2022-01-09 23:25:27,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 11:25:27" (3/3) ... [2022-01-09 23:25:27,559 INFO L111 eAbstractionObserver]: Analyzing ICFG ss3.c [2022-01-09 23:25:27,562 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-09 23:25:27,562 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-09 23:25:27,604 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-09 23:25:27,610 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-09 23:25:27,610 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-09 23:25:27,622 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:25:27,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-09 23:25:27,633 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:25:27,633 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-09 23:25:27,634 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:25:27,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:25:27,637 INFO L85 PathProgramCache]: Analyzing trace with hash 118053350, now seen corresponding path program 1 times [2022-01-09 23:25:27,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:25:27,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369398671] [2022-01-09 23:25:27,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:25:27,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:25:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:25:27,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 23:25:27,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:25:27,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369398671] [2022-01-09 23:25:27,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369398671] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:25:27,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:25:27,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-09 23:25:27,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500840852] [2022-01-09 23:25:27,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:25:27,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-09 23:25:27,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:25:27,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-09 23:25:27,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-09 23:25:27,801 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:25:27,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:25:27,815 INFO L93 Difference]: Finished difference Result 50 states and 72 transitions. [2022-01-09 23:25:27,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-09 23:25:27,817 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-01-09 23:25:27,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:25:27,822 INFO L225 Difference]: With dead ends: 50 [2022-01-09 23:25:27,822 INFO L226 Difference]: Without dead ends: 23 [2022-01-09 23:25:27,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-09 23:25:27,827 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-09 23:25:27,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-09 23:25:27,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-01-09 23:25:27,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-01-09 23:25:27,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:25:27,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-01-09 23:25:27,856 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 17 [2022-01-09 23:25:27,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:25:27,857 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-01-09 23:25:27,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:25:27,857 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-01-09 23:25:27,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-09 23:25:27,858 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:25:27,858 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-09 23:25:27,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-09 23:25:27,859 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:25:27,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:25:27,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1065017552, now seen corresponding path program 1 times [2022-01-09 23:25:27,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:25:27,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708963769] [2022-01-09 23:25:27,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:25:27,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:25:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:25:27,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 23:25:27,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:25:27,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708963769] [2022-01-09 23:25:27,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708963769] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:25:27,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:25:27,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-09 23:25:27,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236111284] [2022-01-09 23:25:27,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:25:27,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-09 23:25:27,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:25:27,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-09 23:25:27,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-09 23:25:27,962 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:25:28,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:25:28,022 INFO L93 Difference]: Finished difference Result 49 states and 61 transitions. [2022-01-09 23:25:28,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-09 23:25:28,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-01-09 23:25:28,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:25:28,023 INFO L225 Difference]: With dead ends: 49 [2022-01-09 23:25:28,023 INFO L226 Difference]: Without dead ends: 33 [2022-01-09 23:25:28,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-09 23:25:28,027 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 33 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-09 23:25:28,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 13 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-09 23:25:28,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-01-09 23:25:28,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2022-01-09 23:25:28,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:25:28,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2022-01-09 23:25:28,040 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2022-01-09 23:25:28,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:25:28,041 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2022-01-09 23:25:28,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:25:28,042 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2022-01-09 23:25:28,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-09 23:25:28,042 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:25:28,043 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-09 23:25:28,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-09 23:25:28,043 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:25:28,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:25:28,043 INFO L85 PathProgramCache]: Analyzing trace with hash 524088314, now seen corresponding path program 1 times [2022-01-09 23:25:28,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:25:28,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323233359] [2022-01-09 23:25:28,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:25:28,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:25:28,081 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-09 23:25:28,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1270157937] [2022-01-09 23:25:28,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:25:28,082 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:25:28,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 23:25:28,083 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) [2022-01-09 23:25:28,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-09 23:25:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:25:28,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 48 conjunts are in the unsatisfiable core [2022-01-09 23:25:28,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 23:25:28,238 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-09 23:25:28,248 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-09 23:25:28,293 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-01-09 23:25:28,420 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-01-09 23:25:28,518 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2022-01-09 23:25:28,605 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-01-09 23:25:28,677 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-01-09 23:25:28,754 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 35 [2022-01-09 23:25:28,777 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 23:25:28,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-09 23:25:29,291 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-09 23:25:29,335 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 23:25:29,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:25:29,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323233359] [2022-01-09 23:25:29,336 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-09 23:25:29,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270157937] [2022-01-09 23:25:29,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270157937] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-09 23:25:29,336 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-09 23:25:29,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16] total 27 [2022-01-09 23:25:29,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205374933] [2022-01-09 23:25:29,337 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-09 23:25:29,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-09 23:25:29,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:25:29,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-09 23:25:29,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=582, Unknown=0, NotChecked=0, Total=702 [2022-01-09 23:25:29,338 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 27 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 27 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:25:31,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:25:31,578 INFO L93 Difference]: Finished difference Result 71 states and 84 transitions. [2022-01-09 23:25:31,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-09 23:25:31,581 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 27 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-01-09 23:25:31,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:25:31,581 INFO L225 Difference]: With dead ends: 71 [2022-01-09 23:25:31,581 INFO L226 Difference]: Without dead ends: 61 [2022-01-09 23:25:31,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=320, Invalid=1402, Unknown=0, NotChecked=0, Total=1722 [2022-01-09 23:25:31,583 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 67 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-09 23:25:31,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 99 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 402 Invalid, 0 Unknown, 38 Unchecked, 0.8s Time] [2022-01-09 23:25:31,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-01-09 23:25:31,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 46. [2022-01-09 23:25:31,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.2) internal successors, (54), 45 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:25:31,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2022-01-09 23:25:31,589 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 27 [2022-01-09 23:25:31,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:25:31,589 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2022-01-09 23:25:31,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 27 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:25:31,589 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2022-01-09 23:25:31,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-09 23:25:31,590 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:25:31,590 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-09 23:25:31,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-09 23:25:31,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:25:31,791 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:25:31,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:25:31,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1190930620, now seen corresponding path program 2 times [2022-01-09 23:25:31,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:25:31,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430171181] [2022-01-09 23:25:31,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:25:31,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:25:31,808 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-09 23:25:31,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1956695309] [2022-01-09 23:25:31,808 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-09 23:25:31,808 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:25:31,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 23:25:31,809 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) [2022-01-09 23:25:31,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-09 23:25:31,891 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-09 23:25:31,891 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-09 23:25:31,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-09 23:25:31,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 23:25:31,974 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-09 23:25:31,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-09 23:25:32,025 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-09 23:25:32,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:25:32,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430171181] [2022-01-09 23:25:32,025 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-09 23:25:32,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956695309] [2022-01-09 23:25:32,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956695309] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-09 23:25:32,025 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-09 23:25:32,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-01-09 23:25:32,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298261789] [2022-01-09 23:25:32,025 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-09 23:25:32,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-09 23:25:32,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:25:32,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-09 23:25:32,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-09 23:25:32,026 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:25:32,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:25:32,134 INFO L93 Difference]: Finished difference Result 109 states and 127 transitions. [2022-01-09 23:25:32,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-09 23:25:32,134 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-01-09 23:25:32,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:25:32,135 INFO L225 Difference]: With dead ends: 109 [2022-01-09 23:25:32,135 INFO L226 Difference]: Without dead ends: 65 [2022-01-09 23:25:32,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-01-09 23:25:32,136 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 81 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-09 23:25:32,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 30 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 23:25:32,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-01-09 23:25:32,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 48. [2022-01-09 23:25:32,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.1702127659574468) internal successors, (55), 47 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:25:32,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2022-01-09 23:25:32,143 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 29 [2022-01-09 23:25:32,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:25:32,143 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2022-01-09 23:25:32,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:25:32,143 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2022-01-09 23:25:32,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-09 23:25:32,143 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:25:32,144 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-09 23:25:32,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-09 23:25:32,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-01-09 23:25:32,358 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:25:32,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:25:32,359 INFO L85 PathProgramCache]: Analyzing trace with hash 264308668, now seen corresponding path program 3 times [2022-01-09 23:25:32,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:25:32,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902515284] [2022-01-09 23:25:32,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:25:32,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:25:32,377 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-09 23:25:32,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [970980844] [2022-01-09 23:25:32,377 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-09 23:25:32,377 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:25:32,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 23:25:32,379 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-09 23:25:32,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-09 23:25:32,429 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-01-09 23:25:32,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-09 23:25:32,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-09 23:25:32,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 23:25:32,500 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-09 23:25:32,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-09 23:25:32,554 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-09 23:25:32,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:25:32,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902515284] [2022-01-09 23:25:32,554 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-09 23:25:32,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970980844] [2022-01-09 23:25:32,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970980844] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-09 23:25:32,555 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-09 23:25:32,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-01-09 23:25:32,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565283808] [2022-01-09 23:25:32,555 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-09 23:25:32,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-09 23:25:32,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:25:32,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-09 23:25:32,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-09 23:25:32,556 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:25:32,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:25:32,658 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2022-01-09 23:25:32,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-09 23:25:32,658 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-01-09 23:25:32,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:25:32,659 INFO L225 Difference]: With dead ends: 58 [2022-01-09 23:25:32,659 INFO L226 Difference]: Without dead ends: 42 [2022-01-09 23:25:32,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-01-09 23:25:32,659 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 64 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-09 23:25:32,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 21 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 23:25:32,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-01-09 23:25:32,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2022-01-09 23:25:32,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.135135135135135) internal successors, (42), 37 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:25:32,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-01-09 23:25:32,664 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 29 [2022-01-09 23:25:32,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:25:32,664 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-01-09 23:25:32,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:25:32,664 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-01-09 23:25:32,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-09 23:25:32,665 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:25:32,665 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-09 23:25:32,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-01-09 23:25:32,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:25:32,900 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:25:32,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:25:32,901 INFO L85 PathProgramCache]: Analyzing trace with hash 982389828, now seen corresponding path program 4 times [2022-01-09 23:25:32,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:25:32,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674648740] [2022-01-09 23:25:32,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:25:32,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:25:32,932 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-09 23:25:32,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [20491912] [2022-01-09 23:25:32,932 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-09 23:25:32,932 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:25:32,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 23:25:32,933 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-09 23:25:32,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-09 23:25:32,979 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-09 23:25:32,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-09 23:25:32,980 WARN L261 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 76 conjunts are in the unsatisfiable core [2022-01-09 23:25:32,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 23:25:32,998 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-09 23:25:33,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:25:33,021 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-01-09 23:25:33,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:25:33,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:25:33,071 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-01-09 23:25:33,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:25:33,162 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-09 23:25:33,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:25:33,164 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2022-01-09 23:25:33,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:25:33,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:25:33,236 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 37 [2022-01-09 23:25:33,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:25:33,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:25:33,335 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-09 23:25:33,336 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 42 [2022-01-09 23:25:33,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:25:33,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:25:33,411 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2022-01-09 23:25:33,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:25:33,518 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-09 23:25:33,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:25:33,520 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 41 [2022-01-09 23:25:33,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:25:33,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:25:33,608 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 35 [2022-01-09 23:25:33,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:25:33,734 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-09 23:25:33,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:25:33,736 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2022-01-09 23:25:33,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:25:33,832 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-09 23:25:33,832 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 37 [2022-01-09 23:25:33,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:25:33,992 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 38 [2022-01-09 23:25:34,028 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 23:25:34,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-09 23:25:47,604 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 23:25:47,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:25:47,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674648740] [2022-01-09 23:25:47,604 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-09 23:25:47,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20491912] [2022-01-09 23:25:47,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20491912] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-09 23:25:47,604 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-09 23:25:47,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 47 [2022-01-09 23:25:47,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432752678] [2022-01-09 23:25:47,605 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-09 23:25:47,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-01-09 23:25:47,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:25:47,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-01-09 23:25:47,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=1954, Unknown=0, NotChecked=0, Total=2162 [2022-01-09 23:25:47,606 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 47 states, 47 states have (on average 1.446808510638298) internal successors, (68), 47 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:26:45,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:45,069 INFO L93 Difference]: Finished difference Result 93 states and 106 transitions. [2022-01-09 23:26:45,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-01-09 23:26:45,070 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 1.446808510638298) internal successors, (68), 47 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-09 23:26:45,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:45,071 INFO L225 Difference]: With dead ends: 93 [2022-01-09 23:26:45,071 INFO L226 Difference]: Without dead ends: 88 [2022-01-09 23:26:45,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 840 ImplicationChecksByTransitivity, 66.0s TimeCoverageRelationStatistics Valid=400, Invalid=4567, Unknown=3, NotChecked=0, Total=4970 [2022-01-09 23:26:45,073 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 26 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 282 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-01-09 23:26:45,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 144 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 845 Invalid, 0 Unknown, 282 Unchecked, 4.7s Time] [2022-01-09 23:26:45,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-01-09 23:26:45,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 75. [2022-01-09 23:26:45,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.162162162162162) internal successors, (86), 74 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:26:45,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 86 transitions. [2022-01-09 23:26:45,088 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 86 transitions. Word has length 37 [2022-01-09 23:26:45,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:45,088 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 86 transitions. [2022-01-09 23:26:45,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 1.446808510638298) internal successors, (68), 47 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:26:45,089 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 86 transitions. [2022-01-09 23:26:45,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-09 23:26:45,089 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:45,089 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-09 23:26:45,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-09 23:26:45,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:26:45,305 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:45,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:45,306 INFO L85 PathProgramCache]: Analyzing trace with hash -762945914, now seen corresponding path program 5 times [2022-01-09 23:26:45,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:45,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537674147] [2022-01-09 23:26:45,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:45,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:45,323 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-09 23:26:45,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1955484203] [2022-01-09 23:26:45,323 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-09 23:26:45,323 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:26:45,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 23:26:45,340 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-09 23:26:45,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-09 23:26:45,466 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-01-09 23:26:45,466 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-09 23:26:45,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-09 23:26:45,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 23:26:45,576 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-01-09 23:26:45,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-09 23:26:45,658 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-01-09 23:26:45,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:45,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537674147] [2022-01-09 23:26:45,659 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-09 23:26:45,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955484203] [2022-01-09 23:26:45,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955484203] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-09 23:26:45,659 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-09 23:26:45,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-01-09 23:26:45,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745789003] [2022-01-09 23:26:45,659 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-09 23:26:45,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-09 23:26:45,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:45,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-09 23:26:45,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-01-09 23:26:45,660 INFO L87 Difference]: Start difference. First operand 75 states and 86 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:26:45,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:45,821 INFO L93 Difference]: Finished difference Result 147 states and 167 transitions. [2022-01-09 23:26:45,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-09 23:26:45,822 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-09 23:26:45,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:45,822 INFO L225 Difference]: With dead ends: 147 [2022-01-09 23:26:45,823 INFO L226 Difference]: Without dead ends: 74 [2022-01-09 23:26:45,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-01-09 23:26:45,823 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 96 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-09 23:26:45,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 33 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 23:26:45,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-01-09 23:26:45,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 58. [2022-01-09 23:26:45,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.1228070175438596) internal successors, (64), 57 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:26:45,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 64 transitions. [2022-01-09 23:26:45,831 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 64 transitions. Word has length 39 [2022-01-09 23:26:45,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:45,832 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 64 transitions. [2022-01-09 23:26:45,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:26:45,832 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 64 transitions. [2022-01-09 23:26:45,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-09 23:26:45,832 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:45,832 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-09 23:26:45,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-09 23:26:46,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:26:46,053 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:46,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:46,054 INFO L85 PathProgramCache]: Analyzing trace with hash -703482232, now seen corresponding path program 6 times [2022-01-09 23:26:46,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:46,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024131334] [2022-01-09 23:26:46,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:46,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:46,081 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-09 23:26:46,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [902810408] [2022-01-09 23:26:46,082 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-09 23:26:46,082 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:26:46,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 23:26:46,091 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-09 23:26:46,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-09 23:26:46,156 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2022-01-09 23:26:46,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-09 23:26:46,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-09 23:26:46,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 23:26:46,276 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-09 23:26:46,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-09 23:26:46,357 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-09 23:26:46,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:46,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024131334] [2022-01-09 23:26:46,357 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-09 23:26:46,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902810408] [2022-01-09 23:26:46,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902810408] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-09 23:26:46,357 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-09 23:26:46,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-01-09 23:26:46,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807291796] [2022-01-09 23:26:46,358 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-09 23:26:46,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-09 23:26:46,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:46,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-09 23:26:46,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-01-09 23:26:46,359 INFO L87 Difference]: Start difference. First operand 58 states and 64 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:26:46,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:46,515 INFO L93 Difference]: Finished difference Result 68 states and 74 transitions. [2022-01-09 23:26:46,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-09 23:26:46,515 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-01-09 23:26:46,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:46,516 INFO L225 Difference]: With dead ends: 68 [2022-01-09 23:26:46,516 INFO L226 Difference]: Without dead ends: 52 [2022-01-09 23:26:46,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-01-09 23:26:46,517 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 81 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-09 23:26:46,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 18 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 23:26:46,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-01-09 23:26:46,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2022-01-09 23:26:46,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.1063829787234043) internal successors, (52), 47 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:26:46,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2022-01-09 23:26:46,524 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 41 [2022-01-09 23:26:46,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:46,525 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2022-01-09 23:26:46,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:26:46,525 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2022-01-09 23:26:46,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-09 23:26:46,525 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:46,525 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-09 23:26:46,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-09 23:26:46,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:26:46,744 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:46,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:46,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1373102066, now seen corresponding path program 7 times [2022-01-09 23:26:46,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:46,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847406947] [2022-01-09 23:26:46,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:46,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:46,766 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-09 23:26:46,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [836463466] [2022-01-09 23:26:46,766 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-09 23:26:46,766 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:26:46,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 23:26:46,782 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-09 23:26:46,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-09 23:26:46,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:46,872 WARN L261 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 110 conjunts are in the unsatisfiable core [2022-01-09 23:26:46,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 23:26:46,889 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-09 23:26:46,895 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-09 23:26:46,913 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-01-09 23:26:46,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:46,984 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2022-01-09 23:26:47,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,042 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2022-01-09 23:26:47,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-09 23:26:47,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,181 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-01-09 23:26:47,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,271 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-09 23:26:47,272 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 53 [2022-01-09 23:26:47,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,369 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 55 [2022-01-09 23:26:47,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,492 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-09 23:26:47,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,493 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 49 [2022-01-09 23:26:47,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,598 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-09 23:26:47,599 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-01-09 23:26:47,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,700 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2022-01-09 23:26:47,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,834 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-09 23:26:47,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,836 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 51 [2022-01-09 23:26:47,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:47,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-09 23:26:47,948 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 51 [2022-01-09 23:26:48,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:48,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:48,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:26:48,061 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 49