/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loops/sum04-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-e106359-m [2022-04-14 18:57:35,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-14 18:57:35,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-14 18:57:35,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-14 18:57:35,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-14 18:57:35,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-14 18:57:35,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-14 18:57:35,681 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-14 18:57:35,683 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-14 18:57:35,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-14 18:57:35,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-14 18:57:35,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2022-04-14 18:57:35,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-14 18:57:35,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-14 18:57:35,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-14 18:57:35,733 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-14 18:57:35,746 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-14 18:57:35,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-14 18:57:35,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-14 18:57:35,748 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-14 18:57:35,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-14 18:57:35,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-14 18:57:35,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-14 18:57:35,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-14 18:57:35,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-14 18:57:35,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-14 18:57:35,750 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-14 18:57:35,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-14 18:57:35,750 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-14 18:57:35,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-14 18:57:35,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-14 18:57:35,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-14 18:57:35,751 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-14 18:57:35,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-14 18:57:35,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-14 18:57:35,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-14 18:57:35,751 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-14 18:57:35,752 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-14 18:57:35,753 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-14 18:57:36,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-14 18:57:36,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-14 18:57:36,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-14 18:57:36,063 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-14 18:57:36,063 INFO L275 PluginConnector]: CDTParser initialized [2022-04-14 18:57:36,065 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum04-1.i [2022-04-14 18:57:36,125 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da5e03c90/0d5697fb8224495c967c6f5b274c9c09/FLAG30b698216 [2022-04-14 18:57:36,562 INFO L306 CDTParser]: Found 1 translation units. [2022-04-14 18:57:36,563 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum04-1.i [2022-04-14 18:57:36,570 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da5e03c90/0d5697fb8224495c967c6f5b274c9c09/FLAG30b698216 [2022-04-14 18:57:36,596 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da5e03c90/0d5697fb8224495c967c6f5b274c9c09 [2022-04-14 18:57:36,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-14 18:57:36,600 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-14 18:57:36,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-14 18:57:36,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-14 18:57:36,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-14 18:57:36,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 06:57:36" (1/1) ... [2022-04-14 18:57:36,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3397a282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:57:36, skipping insertion in model container [2022-04-14 18:57:36,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 06:57:36" (1/1) ... [2022-04-14 18:57:36,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-14 18:57:36,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-14 18:57:36,800 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/sum04-1.i[808,821] [2022-04-14 18:57:36,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-14 18:57:36,831 INFO L203 MainTranslator]: Completed pre-run [2022-04-14 18:57:36,843 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/sum04-1.i[808,821] [2022-04-14 18:57:36,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-14 18:57:36,870 INFO L208 MainTranslator]: Completed translation [2022-04-14 18:57:36,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:57:36 WrapperNode [2022-04-14 18:57:36,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-14 18:57:36,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-14 18:57:36,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-14 18:57:36,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-14 18:57:36,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:57:36" (1/1) ... [2022-04-14 18:57:36,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:57:36" (1/1) ... [2022-04-14 18:57:36,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:57:36" (1/1) ... [2022-04-14 18:57:36,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:57:36" (1/1) ... [2022-04-14 18:57:36,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:57:36" (1/1) ... [2022-04-14 18:57:36,902 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:57:36" (1/1) ... [2022-04-14 18:57:36,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:57:36" (1/1) ... [2022-04-14 18:57:36,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-14 18:57:36,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-14 18:57:36,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-14 18:57:36,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-14 18:57:36,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:57:36" (1/1) ... [2022-04-14 18:57:36,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-14 18:57:36,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 18:57:36,953 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-14 18:57:36,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-14 18:57:37,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-14 18:57:37,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-14 18:57:37,004 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-14 18:57:37,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-14 18:57:37,004 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-14 18:57:37,004 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-14 18:57:37,004 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-14 18:57:37,004 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-04-14 18:57:37,004 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-04-14 18:57:37,005 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-14 18:57:37,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-14 18:57:37,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-14 18:57:37,005 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-14 18:57:37,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-14 18:57:37,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-14 18:57:37,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-14 18:57:37,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-14 18:57:37,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-14 18:57:37,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-14 18:57:37,070 INFO L234 CfgBuilder]: Building ICFG [2022-04-14 18:57:37,072 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-14 18:57:37,187 INFO L275 CfgBuilder]: Performing block encoding [2022-04-14 18:57:37,193 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-14 18:57:37,194 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-14 18:57:37,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 06:57:37 BoogieIcfgContainer [2022-04-14 18:57:37,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-14 18:57:37,196 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-14 18:57:37,197 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-14 18:57:37,198 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-14 18:57:37,200 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 06:57:37" (1/1) ... [2022-04-14 18:57:37,203 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-14 18:57:37,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.04 06:57:37 BasicIcfg [2022-04-14 18:57:37,219 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-14 18:57:37,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-14 18:57:37,221 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-14 18:57:37,223 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-14 18:57:37,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 06:57:36" (1/4) ... [2022-04-14 18:57:37,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d19bd81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 06:57:37, skipping insertion in model container [2022-04-14 18:57:37,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:57:36" (2/4) ... [2022-04-14 18:57:37,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d19bd81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 06:57:37, skipping insertion in model container [2022-04-14 18:57:37,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 06:57:37" (3/4) ... [2022-04-14 18:57:37,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d19bd81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 06:57:37, skipping insertion in model container [2022-04-14 18:57:37,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.04 06:57:37" (4/4) ... [2022-04-14 18:57:37,226 INFO L111 eAbstractionObserver]: Analyzing ICFG sum04-1.iJordan [2022-04-14 18:57:37,231 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-14 18:57:37,232 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-14 18:57:37,303 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-14 18:57:37,310 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-14 18:57:37,310 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-14 18:57:37,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-14 18:57:37,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-14 18:57:37,350 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 18:57:37,350 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 18:57:37,351 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 18:57:37,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 18:57:37,360 INFO L85 PathProgramCache]: Analyzing trace with hash -423489079, now seen corresponding path program 1 times [2022-04-14 18:57:37,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 18:57:37,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260295719] [2022-04-14 18:57:37,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 18:57:37,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 18:57:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 18:57:37,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-14 18:57:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 18:57:37,628 INFO L290 TraceCheckUtils]: 0: Hoare triple {28#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [52] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {23#true} is VALID [2022-04-14 18:57:37,628 INFO L290 TraceCheckUtils]: 1: Hoare triple {23#true} [55] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-14 18:57:37,629 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {23#true} {23#true} [70] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-14 18:57:37,632 INFO L272 TraceCheckUtils]: 0: Hoare triple {23#true} [50] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {28#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-14 18:57:37,633 INFO L290 TraceCheckUtils]: 1: Hoare triple {28#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [52] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {23#true} is VALID [2022-04-14 18:57:37,633 INFO L290 TraceCheckUtils]: 2: Hoare triple {23#true} [55] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-14 18:57:37,634 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {23#true} {23#true} [70] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-14 18:57:37,635 INFO L272 TraceCheckUtils]: 4: Hoare triple {23#true} [51] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-14 18:57:37,635 INFO L290 TraceCheckUtils]: 5: Hoare triple {23#true} [54] mainENTRY-->L24-3: Formula: (and (= v_main_~sn~0_3 0) (= v_main_~i~0_5 1)) InVars {} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_5} AuxVars[] AssignedVars[main_~sn~0, main_~i~0] {23#true} is VALID [2022-04-14 18:57:37,636 INFO L290 TraceCheckUtils]: 6: Hoare triple {23#true} [56] L24-3-->L24-4: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {24#false} is VALID [2022-04-14 18:57:37,638 INFO L272 TraceCheckUtils]: 7: Hoare triple {24#false} [59] L24-4-->__VERIFIER_assertENTRY: Formula: (= (ite (or (= v_main_~sn~0_5 16) (= v_main_~sn~0_5 0)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~sn~0=v_main_~sn~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~sn~0] {24#false} is VALID [2022-04-14 18:57:37,639 INFO L290 TraceCheckUtils]: 8: Hoare triple {24#false} [63] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {24#false} is VALID [2022-04-14 18:57:37,639 INFO L290 TraceCheckUtils]: 9: Hoare triple {24#false} [65] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {24#false} is VALID [2022-04-14 18:57:37,640 INFO L290 TraceCheckUtils]: 10: Hoare triple {24#false} [67] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {24#false} is VALID [2022-04-14 18:57:37,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 18:57:37,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 18:57:37,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260295719] [2022-04-14 18:57:37,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260295719] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-14 18:57:37,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-14 18:57:37,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-14 18:57:37,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926052560] [2022-04-14 18:57:37,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-14 18:57:37,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-04-14 18:57:37,654 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 18:57:37,657 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:37,685 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 18:57:37,685 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-14 18:57:37,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 18:57:37,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-14 18:57:37,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-14 18:57:37,719 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:37,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 18:57:37,819 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-04-14 18:57:37,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-14 18:57:37,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-04-14 18:57:37,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 18:57:37,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:37,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2022-04-14 18:57:37,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:37,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2022-04-14 18:57:37,845 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 23 transitions. [2022-04-14 18:57:37,885 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 18:57:37,893 INFO L225 Difference]: With dead ends: 20 [2022-04-14 18:57:37,894 INFO L226 Difference]: Without dead ends: 14 [2022-04-14 18:57:37,896 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-14 18:57:37,900 INFO L913 BasicCegarLoop]: 20 mSDtfsCounter, 12 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-14 18:57:37,902 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 23 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-14 18:57:37,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-04-14 18:57:37,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-04-14 18:57:37,926 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 18:57:37,928 INFO L82 GeneralOperation]: Start isEquivalent. First operand 14 states. Second operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:37,929 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:37,930 INFO L87 Difference]: Start difference. First operand 14 states. Second operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:37,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 18:57:37,934 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2022-04-14 18:57:37,934 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-04-14 18:57:37,934 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 18:57:37,935 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 18:57:37,935 INFO L74 IsIncluded]: Start isIncluded. First operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 14 states. [2022-04-14 18:57:37,936 INFO L87 Difference]: Start difference. First operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 14 states. [2022-04-14 18:57:37,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 18:57:37,938 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2022-04-14 18:57:37,938 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-04-14 18:57:37,939 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 18:57:37,939 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 18:57:37,939 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 18:57:37,939 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 18:57:37,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:37,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-04-14 18:57:37,942 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2022-04-14 18:57:37,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 18:57:37,942 INFO L478 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-04-14 18:57:37,942 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:37,943 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-04-14 18:57:37,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-14 18:57:37,943 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 18:57:37,943 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 18:57:37,943 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-14 18:57:37,944 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 18:57:37,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 18:57:37,945 INFO L85 PathProgramCache]: Analyzing trace with hash -422565558, now seen corresponding path program 1 times [2022-04-14 18:57:37,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 18:57:37,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722707081] [2022-04-14 18:57:37,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 18:57:37,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 18:57:37,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 18:57:38,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-14 18:57:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 18:57:38,012 INFO L290 TraceCheckUtils]: 0: Hoare triple {99#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [52] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {93#true} is VALID [2022-04-14 18:57:38,012 INFO L290 TraceCheckUtils]: 1: Hoare triple {93#true} [55] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {93#true} is VALID [2022-04-14 18:57:38,012 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {93#true} {93#true} [70] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {93#true} is VALID [2022-04-14 18:57:38,013 INFO L272 TraceCheckUtils]: 0: Hoare triple {93#true} [50] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {99#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-14 18:57:38,014 INFO L290 TraceCheckUtils]: 1: Hoare triple {99#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [52] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {93#true} is VALID [2022-04-14 18:57:38,014 INFO L290 TraceCheckUtils]: 2: Hoare triple {93#true} [55] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {93#true} is VALID [2022-04-14 18:57:38,014 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {93#true} {93#true} [70] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {93#true} is VALID [2022-04-14 18:57:38,014 INFO L272 TraceCheckUtils]: 4: Hoare triple {93#true} [51] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {93#true} is VALID [2022-04-14 18:57:38,015 INFO L290 TraceCheckUtils]: 5: Hoare triple {93#true} [54] mainENTRY-->L24-3: Formula: (and (= v_main_~sn~0_3 0) (= v_main_~i~0_5 1)) InVars {} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_5} AuxVars[] AssignedVars[main_~sn~0, main_~i~0] {98#(= (+ (- 1) main_~i~0) 0)} is VALID [2022-04-14 18:57:38,016 INFO L290 TraceCheckUtils]: 6: Hoare triple {98#(= (+ (- 1) main_~i~0) 0)} [57] L24-3-->L24-4: Formula: (not (<= v_main_~i~0_8 8)) InVars {main_~i~0=v_main_~i~0_8} OutVars{main_~i~0=v_main_~i~0_8} AuxVars[] AssignedVars[] {94#false} is VALID [2022-04-14 18:57:38,016 INFO L272 TraceCheckUtils]: 7: Hoare triple {94#false} [59] L24-4-->__VERIFIER_assertENTRY: Formula: (= (ite (or (= v_main_~sn~0_5 16) (= v_main_~sn~0_5 0)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~sn~0=v_main_~sn~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~sn~0] {94#false} is VALID [2022-04-14 18:57:38,016 INFO L290 TraceCheckUtils]: 8: Hoare triple {94#false} [63] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {94#false} is VALID [2022-04-14 18:57:38,017 INFO L290 TraceCheckUtils]: 9: Hoare triple {94#false} [65] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {94#false} is VALID [2022-04-14 18:57:38,017 INFO L290 TraceCheckUtils]: 10: Hoare triple {94#false} [67] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {94#false} is VALID [2022-04-14 18:57:38,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 18:57:38,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 18:57:38,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722707081] [2022-04-14 18:57:38,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722707081] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-14 18:57:38,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-14 18:57:38,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-14 18:57:38,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5130515] [2022-04-14 18:57:38,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-14 18:57:38,019 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-04-14 18:57:38,020 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 18:57:38,020 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:38,031 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 18:57:38,031 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-14 18:57:38,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 18:57:38,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-14 18:57:38,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-14 18:57:38,032 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:38,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 18:57:38,123 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-04-14 18:57:38,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-14 18:57:38,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-04-14 18:57:38,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 18:57:38,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:38,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2022-04-14 18:57:38,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:38,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2022-04-14 18:57:38,126 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 20 transitions. [2022-04-14 18:57:38,180 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 18:57:38,181 INFO L225 Difference]: With dead ends: 17 [2022-04-14 18:57:38,181 INFO L226 Difference]: Without dead ends: 17 [2022-04-14 18:57:38,182 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-14 18:57:38,183 INFO L913 BasicCegarLoop]: 12 mSDtfsCounter, 13 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-14 18:57:38,183 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 19 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-14 18:57:38,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-04-14 18:57:38,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2022-04-14 18:57:38,186 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 18:57:38,186 INFO L82 GeneralOperation]: Start isEquivalent. First operand 17 states. Second operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:38,187 INFO L74 IsIncluded]: Start isIncluded. First operand 17 states. Second operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:38,187 INFO L87 Difference]: Start difference. First operand 17 states. Second operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:38,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 18:57:38,189 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-04-14 18:57:38,189 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-04-14 18:57:38,189 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 18:57:38,190 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 18:57:38,190 INFO L74 IsIncluded]: Start isIncluded. First operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 17 states. [2022-04-14 18:57:38,190 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 17 states. [2022-04-14 18:57:38,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 18:57:38,192 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-04-14 18:57:38,192 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-04-14 18:57:38,192 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 18:57:38,193 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 18:57:38,193 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 18:57:38,193 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 18:57:38,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:38,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-04-14 18:57:38,195 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 11 [2022-04-14 18:57:38,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 18:57:38,195 INFO L478 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-04-14 18:57:38,195 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:38,195 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-04-14 18:57:38,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-14 18:57:38,196 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 18:57:38,196 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 18:57:38,196 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-14 18:57:38,197 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 18:57:38,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 18:57:38,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1744981802, now seen corresponding path program 1 times [2022-04-14 18:57:38,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 18:57:38,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357306227] [2022-04-14 18:57:38,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 18:57:38,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 18:57:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 18:57:38,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-14 18:57:38,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 18:57:38,283 INFO L290 TraceCheckUtils]: 0: Hoare triple {178#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [52] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {171#true} is VALID [2022-04-14 18:57:38,284 INFO L290 TraceCheckUtils]: 1: Hoare triple {171#true} [55] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {171#true} is VALID [2022-04-14 18:57:38,284 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {171#true} {171#true} [70] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {171#true} is VALID [2022-04-14 18:57:38,285 INFO L272 TraceCheckUtils]: 0: Hoare triple {171#true} [50] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {178#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-14 18:57:38,285 INFO L290 TraceCheckUtils]: 1: Hoare triple {178#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [52] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {171#true} is VALID [2022-04-14 18:57:38,286 INFO L290 TraceCheckUtils]: 2: Hoare triple {171#true} [55] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {171#true} is VALID [2022-04-14 18:57:38,286 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {171#true} {171#true} [70] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {171#true} is VALID [2022-04-14 18:57:38,286 INFO L272 TraceCheckUtils]: 4: Hoare triple {171#true} [51] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {171#true} is VALID [2022-04-14 18:57:38,287 INFO L290 TraceCheckUtils]: 5: Hoare triple {171#true} [54] mainENTRY-->L24-3: Formula: (and (= v_main_~sn~0_3 0) (= v_main_~i~0_5 1)) InVars {} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_5} AuxVars[] AssignedVars[main_~sn~0, main_~i~0] {176#(= (+ (- 1) main_~i~0) 0)} is VALID [2022-04-14 18:57:38,287 INFO L290 TraceCheckUtils]: 6: Hoare triple {176#(= (+ (- 1) main_~i~0) 0)} [58] L24-3-->L25: Formula: (<= v_main_~i~0_9 8) InVars {main_~i~0=v_main_~i~0_9} OutVars{main_~i~0=v_main_~i~0_9} AuxVars[] AssignedVars[] {176#(= (+ (- 1) main_~i~0) 0)} is VALID [2022-04-14 18:57:38,288 INFO L290 TraceCheckUtils]: 7: Hoare triple {176#(= (+ (- 1) main_~i~0) 0)} [60] L25-->L24-2: Formula: (and (= (+ v_main_~sn~0_2 2) v_main_~sn~0_1) (< v_main_~i~0_1 4)) InVars {main_~sn~0=v_main_~sn~0_2, main_~i~0=v_main_~i~0_1} OutVars{main_~sn~0=v_main_~sn~0_1, main_~i~0=v_main_~i~0_1} AuxVars[] AssignedVars[main_~sn~0] {176#(= (+ (- 1) main_~i~0) 0)} is VALID [2022-04-14 18:57:38,289 INFO L290 TraceCheckUtils]: 8: Hoare triple {176#(= (+ (- 1) main_~i~0) 0)} [64] L24-2-->L24-3: Formula: (= v_main_~i~0_3 (+ v_main_~i~0_4 1)) InVars {main_~i~0=v_main_~i~0_4} OutVars{main_~i~0=v_main_~i~0_3, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {177#(<= main_~i~0 2)} is VALID [2022-04-14 18:57:38,289 INFO L290 TraceCheckUtils]: 9: Hoare triple {177#(<= main_~i~0 2)} [57] L24-3-->L24-4: Formula: (not (<= v_main_~i~0_8 8)) InVars {main_~i~0=v_main_~i~0_8} OutVars{main_~i~0=v_main_~i~0_8} AuxVars[] AssignedVars[] {172#false} is VALID [2022-04-14 18:57:38,290 INFO L272 TraceCheckUtils]: 10: Hoare triple {172#false} [59] L24-4-->__VERIFIER_assertENTRY: Formula: (= (ite (or (= v_main_~sn~0_5 16) (= v_main_~sn~0_5 0)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~sn~0=v_main_~sn~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~sn~0] {172#false} is VALID [2022-04-14 18:57:38,290 INFO L290 TraceCheckUtils]: 11: Hoare triple {172#false} [63] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {172#false} is VALID [2022-04-14 18:57:38,290 INFO L290 TraceCheckUtils]: 12: Hoare triple {172#false} [65] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {172#false} is VALID [2022-04-14 18:57:38,290 INFO L290 TraceCheckUtils]: 13: Hoare triple {172#false} [67] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {172#false} is VALID [2022-04-14 18:57:38,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 18:57:38,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 18:57:38,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357306227] [2022-04-14 18:57:38,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357306227] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-14 18:57:38,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932807387] [2022-04-14 18:57:38,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 18:57:38,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 18:57:38,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 18:57:38,293 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-14 18:57:38,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-14 18:57:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 18:57:38,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-14 18:57:38,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 18:57:38,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-14 18:57:38,482 INFO L272 TraceCheckUtils]: 0: Hoare triple {171#true} [50] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {171#true} is VALID [2022-04-14 18:57:38,483 INFO L290 TraceCheckUtils]: 1: Hoare triple {171#true} [52] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {171#true} is VALID [2022-04-14 18:57:38,483 INFO L290 TraceCheckUtils]: 2: Hoare triple {171#true} [55] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {171#true} is VALID [2022-04-14 18:57:38,483 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {171#true} {171#true} [70] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {171#true} is VALID [2022-04-14 18:57:38,484 INFO L272 TraceCheckUtils]: 4: Hoare triple {171#true} [51] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {171#true} is VALID [2022-04-14 18:57:38,484 INFO L290 TraceCheckUtils]: 5: Hoare triple {171#true} [54] mainENTRY-->L24-3: Formula: (and (= v_main_~sn~0_3 0) (= v_main_~i~0_5 1)) InVars {} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_5} AuxVars[] AssignedVars[main_~sn~0, main_~i~0] {197#(<= main_~i~0 1)} is VALID [2022-04-14 18:57:38,485 INFO L290 TraceCheckUtils]: 6: Hoare triple {197#(<= main_~i~0 1)} [58] L24-3-->L25: Formula: (<= v_main_~i~0_9 8) InVars {main_~i~0=v_main_~i~0_9} OutVars{main_~i~0=v_main_~i~0_9} AuxVars[] AssignedVars[] {197#(<= main_~i~0 1)} is VALID [2022-04-14 18:57:38,485 INFO L290 TraceCheckUtils]: 7: Hoare triple {197#(<= main_~i~0 1)} [60] L25-->L24-2: Formula: (and (= (+ v_main_~sn~0_2 2) v_main_~sn~0_1) (< v_main_~i~0_1 4)) InVars {main_~sn~0=v_main_~sn~0_2, main_~i~0=v_main_~i~0_1} OutVars{main_~sn~0=v_main_~sn~0_1, main_~i~0=v_main_~i~0_1} AuxVars[] AssignedVars[main_~sn~0] {197#(<= main_~i~0 1)} is VALID [2022-04-14 18:57:38,486 INFO L290 TraceCheckUtils]: 8: Hoare triple {197#(<= main_~i~0 1)} [64] L24-2-->L24-3: Formula: (= v_main_~i~0_3 (+ v_main_~i~0_4 1)) InVars {main_~i~0=v_main_~i~0_4} OutVars{main_~i~0=v_main_~i~0_3, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {177#(<= main_~i~0 2)} is VALID [2022-04-14 18:57:38,486 INFO L290 TraceCheckUtils]: 9: Hoare triple {177#(<= main_~i~0 2)} [57] L24-3-->L24-4: Formula: (not (<= v_main_~i~0_8 8)) InVars {main_~i~0=v_main_~i~0_8} OutVars{main_~i~0=v_main_~i~0_8} AuxVars[] AssignedVars[] {172#false} is VALID [2022-04-14 18:57:38,487 INFO L272 TraceCheckUtils]: 10: Hoare triple {172#false} [59] L24-4-->__VERIFIER_assertENTRY: Formula: (= (ite (or (= v_main_~sn~0_5 16) (= v_main_~sn~0_5 0)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~sn~0=v_main_~sn~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~sn~0] {172#false} is VALID [2022-04-14 18:57:38,487 INFO L290 TraceCheckUtils]: 11: Hoare triple {172#false} [63] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {172#false} is VALID [2022-04-14 18:57:38,487 INFO L290 TraceCheckUtils]: 12: Hoare triple {172#false} [65] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {172#false} is VALID [2022-04-14 18:57:38,487 INFO L290 TraceCheckUtils]: 13: Hoare triple {172#false} [67] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {172#false} is VALID [2022-04-14 18:57:38,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 18:57:38,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-14 18:57:38,571 INFO L290 TraceCheckUtils]: 13: Hoare triple {172#false} [67] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {172#false} is VALID [2022-04-14 18:57:38,572 INFO L290 TraceCheckUtils]: 12: Hoare triple {172#false} [65] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {172#false} is VALID [2022-04-14 18:57:38,572 INFO L290 TraceCheckUtils]: 11: Hoare triple {172#false} [63] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {172#false} is VALID [2022-04-14 18:57:38,572 INFO L272 TraceCheckUtils]: 10: Hoare triple {172#false} [59] L24-4-->__VERIFIER_assertENTRY: Formula: (= (ite (or (= v_main_~sn~0_5 16) (= v_main_~sn~0_5 0)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~sn~0=v_main_~sn~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~sn~0] {172#false} is VALID [2022-04-14 18:57:38,573 INFO L290 TraceCheckUtils]: 9: Hoare triple {234#(<= main_~i~0 8)} [57] L24-3-->L24-4: Formula: (not (<= v_main_~i~0_8 8)) InVars {main_~i~0=v_main_~i~0_8} OutVars{main_~i~0=v_main_~i~0_8} AuxVars[] AssignedVars[] {172#false} is VALID [2022-04-14 18:57:38,574 INFO L290 TraceCheckUtils]: 8: Hoare triple {238#(<= main_~i~0 7)} [64] L24-2-->L24-3: Formula: (= v_main_~i~0_3 (+ v_main_~i~0_4 1)) InVars {main_~i~0=v_main_~i~0_4} OutVars{main_~i~0=v_main_~i~0_3, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {234#(<= main_~i~0 8)} is VALID [2022-04-14 18:57:38,574 INFO L290 TraceCheckUtils]: 7: Hoare triple {238#(<= main_~i~0 7)} [60] L25-->L24-2: Formula: (and (= (+ v_main_~sn~0_2 2) v_main_~sn~0_1) (< v_main_~i~0_1 4)) InVars {main_~sn~0=v_main_~sn~0_2, main_~i~0=v_main_~i~0_1} OutVars{main_~sn~0=v_main_~sn~0_1, main_~i~0=v_main_~i~0_1} AuxVars[] AssignedVars[main_~sn~0] {238#(<= main_~i~0 7)} is VALID [2022-04-14 18:57:38,574 INFO L290 TraceCheckUtils]: 6: Hoare triple {238#(<= main_~i~0 7)} [58] L24-3-->L25: Formula: (<= v_main_~i~0_9 8) InVars {main_~i~0=v_main_~i~0_9} OutVars{main_~i~0=v_main_~i~0_9} AuxVars[] AssignedVars[] {238#(<= main_~i~0 7)} is VALID [2022-04-14 18:57:38,575 INFO L290 TraceCheckUtils]: 5: Hoare triple {171#true} [54] mainENTRY-->L24-3: Formula: (and (= v_main_~sn~0_3 0) (= v_main_~i~0_5 1)) InVars {} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_5} AuxVars[] AssignedVars[main_~sn~0, main_~i~0] {238#(<= main_~i~0 7)} is VALID [2022-04-14 18:57:38,575 INFO L272 TraceCheckUtils]: 4: Hoare triple {171#true} [51] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {171#true} is VALID [2022-04-14 18:57:38,575 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {171#true} {171#true} [70] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {171#true} is VALID [2022-04-14 18:57:38,576 INFO L290 TraceCheckUtils]: 2: Hoare triple {171#true} [55] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {171#true} is VALID [2022-04-14 18:57:38,576 INFO L290 TraceCheckUtils]: 1: Hoare triple {171#true} [52] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {171#true} is VALID [2022-04-14 18:57:38,576 INFO L272 TraceCheckUtils]: 0: Hoare triple {171#true} [50] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {171#true} is VALID [2022-04-14 18:57:38,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 18:57:38,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932807387] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-14 18:57:38,577 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-14 18:57:38,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2022-04-14 18:57:38,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116208931] [2022-04-14 18:57:38,577 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-14 18:57:38,578 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-04-14 18:57:38,578 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 18:57:38,579 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:38,598 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 18:57:38,598 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-14 18:57:38,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 18:57:38,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-14 18:57:38,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-04-14 18:57:38,600 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:38,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 18:57:38,829 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2022-04-14 18:57:38,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-14 18:57:38,830 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-04-14 18:57:38,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 18:57:38,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:38,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 30 transitions. [2022-04-14 18:57:38,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:38,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 30 transitions. [2022-04-14 18:57:38,834 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 7 states and 30 transitions. [2022-04-14 18:57:38,869 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 18:57:38,870 INFO L225 Difference]: With dead ends: 24 [2022-04-14 18:57:38,870 INFO L226 Difference]: Without dead ends: 24 [2022-04-14 18:57:38,871 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2022-04-14 18:57:38,872 INFO L913 BasicCegarLoop]: 11 mSDtfsCounter, 25 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-14 18:57:38,872 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 28 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-14 18:57:38,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-04-14 18:57:38,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-04-14 18:57:38,875 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 18:57:38,876 INFO L82 GeneralOperation]: Start isEquivalent. First operand 24 states. Second operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:38,876 INFO L74 IsIncluded]: Start isIncluded. First operand 24 states. Second operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:38,876 INFO L87 Difference]: Start difference. First operand 24 states. Second operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:38,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 18:57:38,878 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2022-04-14 18:57:38,878 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-04-14 18:57:38,878 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 18:57:38,879 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 18:57:38,879 INFO L74 IsIncluded]: Start isIncluded. First operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 24 states. [2022-04-14 18:57:38,879 INFO L87 Difference]: Start difference. First operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 24 states. [2022-04-14 18:57:38,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 18:57:38,881 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2022-04-14 18:57:38,881 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-04-14 18:57:38,881 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 18:57:38,881 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 18:57:38,882 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 18:57:38,882 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 18:57:38,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:38,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2022-04-14 18:57:38,883 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 14 [2022-04-14 18:57:38,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 18:57:38,884 INFO L478 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2022-04-14 18:57:38,884 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:38,884 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-04-14 18:57:38,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-04-14 18:57:38,885 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 18:57:38,885 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 18:57:38,914 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-14 18:57:39,109 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 18:57:39,110 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 18:57:39,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 18:57:39,111 INFO L85 PathProgramCache]: Analyzing trace with hash -2062709365, now seen corresponding path program 1 times [2022-04-14 18:57:39,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 18:57:39,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812099969] [2022-04-14 18:57:39,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 18:57:39,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 18:57:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 18:57:39,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-14 18:57:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 18:57:39,222 INFO L290 TraceCheckUtils]: 0: Hoare triple {379#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [52] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {369#true} is VALID [2022-04-14 18:57:39,223 INFO L290 TraceCheckUtils]: 1: Hoare triple {369#true} [55] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {369#true} is VALID [2022-04-14 18:57:39,223 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {369#true} {369#true} [70] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {369#true} is VALID [2022-04-14 18:57:39,227 INFO L272 TraceCheckUtils]: 0: Hoare triple {369#true} [50] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {379#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-14 18:57:39,228 INFO L290 TraceCheckUtils]: 1: Hoare triple {379#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [52] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {369#true} is VALID [2022-04-14 18:57:39,228 INFO L290 TraceCheckUtils]: 2: Hoare triple {369#true} [55] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {369#true} is VALID [2022-04-14 18:57:39,228 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {369#true} {369#true} [70] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {369#true} is VALID [2022-04-14 18:57:39,228 INFO L272 TraceCheckUtils]: 4: Hoare triple {369#true} [51] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {369#true} is VALID [2022-04-14 18:57:39,231 INFO L290 TraceCheckUtils]: 5: Hoare triple {369#true} [54] mainENTRY-->L24-3: Formula: (and (= v_main_~sn~0_3 0) (= v_main_~i~0_5 1)) InVars {} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_5} AuxVars[] AssignedVars[main_~sn~0, main_~i~0] {374#(= (+ (- 1) main_~i~0) 0)} is VALID [2022-04-14 18:57:39,232 INFO L290 TraceCheckUtils]: 6: Hoare triple {374#(= (+ (- 1) main_~i~0) 0)} [58] L24-3-->L25: Formula: (<= v_main_~i~0_9 8) InVars {main_~i~0=v_main_~i~0_9} OutVars{main_~i~0=v_main_~i~0_9} AuxVars[] AssignedVars[] {374#(= (+ (- 1) main_~i~0) 0)} is VALID [2022-04-14 18:57:39,233 INFO L290 TraceCheckUtils]: 7: Hoare triple {374#(= (+ (- 1) main_~i~0) 0)} [60] L25-->L24-2: Formula: (and (= (+ v_main_~sn~0_2 2) v_main_~sn~0_1) (< v_main_~i~0_1 4)) InVars {main_~sn~0=v_main_~sn~0_2, main_~i~0=v_main_~i~0_1} OutVars{main_~sn~0=v_main_~sn~0_1, main_~i~0=v_main_~i~0_1} AuxVars[] AssignedVars[main_~sn~0] {374#(= (+ (- 1) main_~i~0) 0)} is VALID [2022-04-14 18:57:39,234 INFO L290 TraceCheckUtils]: 8: Hoare triple {374#(= (+ (- 1) main_~i~0) 0)} [64] L24-2-->L24-3: Formula: (= v_main_~i~0_3 (+ v_main_~i~0_4 1)) InVars {main_~i~0=v_main_~i~0_4} OutVars{main_~i~0=v_main_~i~0_3, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {375#(<= main_~i~0 2)} is VALID [2022-04-14 18:57:39,235 INFO L290 TraceCheckUtils]: 9: Hoare triple {375#(<= main_~i~0 2)} [58] L24-3-->L25: Formula: (<= v_main_~i~0_9 8) InVars {main_~i~0=v_main_~i~0_9} OutVars{main_~i~0=v_main_~i~0_9} AuxVars[] AssignedVars[] {375#(<= main_~i~0 2)} is VALID [2022-04-14 18:57:39,236 INFO L290 TraceCheckUtils]: 10: Hoare triple {375#(<= main_~i~0 2)} [60] L25-->L24-2: Formula: (and (= (+ v_main_~sn~0_2 2) v_main_~sn~0_1) (< v_main_~i~0_1 4)) InVars {main_~sn~0=v_main_~sn~0_2, main_~i~0=v_main_~i~0_1} OutVars{main_~sn~0=v_main_~sn~0_1, main_~i~0=v_main_~i~0_1} AuxVars[] AssignedVars[main_~sn~0] {375#(<= main_~i~0 2)} is VALID [2022-04-14 18:57:39,236 INFO L290 TraceCheckUtils]: 11: Hoare triple {375#(<= main_~i~0 2)} [64] L24-2-->L24-3: Formula: (= v_main_~i~0_3 (+ v_main_~i~0_4 1)) InVars {main_~i~0=v_main_~i~0_4} OutVars{main_~i~0=v_main_~i~0_3, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {376#(<= main_~i~0 3)} is VALID [2022-04-14 18:57:39,237 INFO L290 TraceCheckUtils]: 12: Hoare triple {376#(<= main_~i~0 3)} [58] L24-3-->L25: Formula: (<= v_main_~i~0_9 8) InVars {main_~i~0=v_main_~i~0_9} OutVars{main_~i~0=v_main_~i~0_9} AuxVars[] AssignedVars[] {376#(<= main_~i~0 3)} is VALID [2022-04-14 18:57:39,237 INFO L290 TraceCheckUtils]: 13: Hoare triple {376#(<= main_~i~0 3)} [60] L25-->L24-2: Formula: (and (= (+ v_main_~sn~0_2 2) v_main_~sn~0_1) (< v_main_~i~0_1 4)) InVars {main_~sn~0=v_main_~sn~0_2, main_~i~0=v_main_~i~0_1} OutVars{main_~sn~0=v_main_~sn~0_1, main_~i~0=v_main_~i~0_1} AuxVars[] AssignedVars[main_~sn~0] {376#(<= main_~i~0 3)} is VALID [2022-04-14 18:57:39,238 INFO L290 TraceCheckUtils]: 14: Hoare triple {376#(<= main_~i~0 3)} [64] L24-2-->L24-3: Formula: (= v_main_~i~0_3 (+ v_main_~i~0_4 1)) InVars {main_~i~0=v_main_~i~0_4} OutVars{main_~i~0=v_main_~i~0_3, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {377#(<= main_~i~0 4)} is VALID [2022-04-14 18:57:39,239 INFO L290 TraceCheckUtils]: 15: Hoare triple {377#(<= main_~i~0 4)} [58] L24-3-->L25: Formula: (<= v_main_~i~0_9 8) InVars {main_~i~0=v_main_~i~0_9} OutVars{main_~i~0=v_main_~i~0_9} AuxVars[] AssignedVars[] {377#(<= main_~i~0 4)} is VALID [2022-04-14 18:57:39,240 INFO L290 TraceCheckUtils]: 16: Hoare triple {377#(<= main_~i~0 4)} [61] L25-->L24-2: Formula: (not (< v_main_~i~0_2 4)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_2} AuxVars[] AssignedVars[] {377#(<= main_~i~0 4)} is VALID [2022-04-14 18:57:39,240 INFO L290 TraceCheckUtils]: 17: Hoare triple {377#(<= main_~i~0 4)} [64] L24-2-->L24-3: Formula: (= v_main_~i~0_3 (+ v_main_~i~0_4 1)) InVars {main_~i~0=v_main_~i~0_4} OutVars{main_~i~0=v_main_~i~0_3, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {378#(<= main_~i~0 5)} is VALID [2022-04-14 18:57:39,242 INFO L290 TraceCheckUtils]: 18: Hoare triple {378#(<= main_~i~0 5)} [57] L24-3-->L24-4: Formula: (not (<= v_main_~i~0_8 8)) InVars {main_~i~0=v_main_~i~0_8} OutVars{main_~i~0=v_main_~i~0_8} AuxVars[] AssignedVars[] {370#false} is VALID [2022-04-14 18:57:39,242 INFO L272 TraceCheckUtils]: 19: Hoare triple {370#false} [59] L24-4-->__VERIFIER_assertENTRY: Formula: (= (ite (or (= v_main_~sn~0_5 16) (= v_main_~sn~0_5 0)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~sn~0=v_main_~sn~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~sn~0] {370#false} is VALID [2022-04-14 18:57:39,242 INFO L290 TraceCheckUtils]: 20: Hoare triple {370#false} [63] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {370#false} is VALID [2022-04-14 18:57:39,243 INFO L290 TraceCheckUtils]: 21: Hoare triple {370#false} [65] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {370#false} is VALID [2022-04-14 18:57:39,243 INFO L290 TraceCheckUtils]: 22: Hoare triple {370#false} [67] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {370#false} is VALID [2022-04-14 18:57:39,243 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 18:57:39,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 18:57:39,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812099969] [2022-04-14 18:57:39,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812099969] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-14 18:57:39,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13468571] [2022-04-14 18:57:39,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 18:57:39,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 18:57:39,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 18:57:39,246 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-14 18:57:39,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-14 18:57:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 18:57:39,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 6 conjunts are in the unsatisfiable core [2022-04-14 18:57:39,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 18:57:39,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-14 18:57:39,484 INFO L272 TraceCheckUtils]: 0: Hoare triple {369#true} [50] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {369#true} is VALID [2022-04-14 18:57:39,484 INFO L290 TraceCheckUtils]: 1: Hoare triple {369#true} [52] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {369#true} is VALID [2022-04-14 18:57:39,485 INFO L290 TraceCheckUtils]: 2: Hoare triple {369#true} [55] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {369#true} is VALID [2022-04-14 18:57:39,485 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {369#true} {369#true} [70] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {369#true} is VALID [2022-04-14 18:57:39,485 INFO L272 TraceCheckUtils]: 4: Hoare triple {369#true} [51] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {369#true} is VALID [2022-04-14 18:57:39,485 INFO L290 TraceCheckUtils]: 5: Hoare triple {369#true} [54] mainENTRY-->L24-3: Formula: (and (= v_main_~sn~0_3 0) (= v_main_~i~0_5 1)) InVars {} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_5} AuxVars[] AssignedVars[main_~sn~0, main_~i~0] {398#(<= main_~i~0 1)} is VALID [2022-04-14 18:57:39,486 INFO L290 TraceCheckUtils]: 6: Hoare triple {398#(<= main_~i~0 1)} [58] L24-3-->L25: Formula: (<= v_main_~i~0_9 8) InVars {main_~i~0=v_main_~i~0_9} OutVars{main_~i~0=v_main_~i~0_9} AuxVars[] AssignedVars[] {398#(<= main_~i~0 1)} is VALID [2022-04-14 18:57:39,486 INFO L290 TraceCheckUtils]: 7: Hoare triple {398#(<= main_~i~0 1)} [60] L25-->L24-2: Formula: (and (= (+ v_main_~sn~0_2 2) v_main_~sn~0_1) (< v_main_~i~0_1 4)) InVars {main_~sn~0=v_main_~sn~0_2, main_~i~0=v_main_~i~0_1} OutVars{main_~sn~0=v_main_~sn~0_1, main_~i~0=v_main_~i~0_1} AuxVars[] AssignedVars[main_~sn~0] {398#(<= main_~i~0 1)} is VALID [2022-04-14 18:57:39,487 INFO L290 TraceCheckUtils]: 8: Hoare triple {398#(<= main_~i~0 1)} [64] L24-2-->L24-3: Formula: (= v_main_~i~0_3 (+ v_main_~i~0_4 1)) InVars {main_~i~0=v_main_~i~0_4} OutVars{main_~i~0=v_main_~i~0_3, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {375#(<= main_~i~0 2)} is VALID [2022-04-14 18:57:39,487 INFO L290 TraceCheckUtils]: 9: Hoare triple {375#(<= main_~i~0 2)} [58] L24-3-->L25: Formula: (<= v_main_~i~0_9 8) InVars {main_~i~0=v_main_~i~0_9} OutVars{main_~i~0=v_main_~i~0_9} AuxVars[] AssignedVars[] {375#(<= main_~i~0 2)} is VALID [2022-04-14 18:57:39,488 INFO L290 TraceCheckUtils]: 10: Hoare triple {375#(<= main_~i~0 2)} [60] L25-->L24-2: Formula: (and (= (+ v_main_~sn~0_2 2) v_main_~sn~0_1) (< v_main_~i~0_1 4)) InVars {main_~sn~0=v_main_~sn~0_2, main_~i~0=v_main_~i~0_1} OutVars{main_~sn~0=v_main_~sn~0_1, main_~i~0=v_main_~i~0_1} AuxVars[] AssignedVars[main_~sn~0] {375#(<= main_~i~0 2)} is VALID [2022-04-14 18:57:39,490 INFO L290 TraceCheckUtils]: 11: Hoare triple {375#(<= main_~i~0 2)} [64] L24-2-->L24-3: Formula: (= v_main_~i~0_3 (+ v_main_~i~0_4 1)) InVars {main_~i~0=v_main_~i~0_4} OutVars{main_~i~0=v_main_~i~0_3, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {376#(<= main_~i~0 3)} is VALID [2022-04-14 18:57:39,491 INFO L290 TraceCheckUtils]: 12: Hoare triple {376#(<= main_~i~0 3)} [58] L24-3-->L25: Formula: (<= v_main_~i~0_9 8) InVars {main_~i~0=v_main_~i~0_9} OutVars{main_~i~0=v_main_~i~0_9} AuxVars[] AssignedVars[] {376#(<= main_~i~0 3)} is VALID [2022-04-14 18:57:39,491 INFO L290 TraceCheckUtils]: 13: Hoare triple {376#(<= main_~i~0 3)} [60] L25-->L24-2: Formula: (and (= (+ v_main_~sn~0_2 2) v_main_~sn~0_1) (< v_main_~i~0_1 4)) InVars {main_~sn~0=v_main_~sn~0_2, main_~i~0=v_main_~i~0_1} OutVars{main_~sn~0=v_main_~sn~0_1, main_~i~0=v_main_~i~0_1} AuxVars[] AssignedVars[main_~sn~0] {376#(<= main_~i~0 3)} is VALID [2022-04-14 18:57:39,492 INFO L290 TraceCheckUtils]: 14: Hoare triple {376#(<= main_~i~0 3)} [64] L24-2-->L24-3: Formula: (= v_main_~i~0_3 (+ v_main_~i~0_4 1)) InVars {main_~i~0=v_main_~i~0_4} OutVars{main_~i~0=v_main_~i~0_3, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {377#(<= main_~i~0 4)} is VALID [2022-04-14 18:57:39,493 INFO L290 TraceCheckUtils]: 15: Hoare triple {377#(<= main_~i~0 4)} [58] L24-3-->L25: Formula: (<= v_main_~i~0_9 8) InVars {main_~i~0=v_main_~i~0_9} OutVars{main_~i~0=v_main_~i~0_9} AuxVars[] AssignedVars[] {377#(<= main_~i~0 4)} is VALID [2022-04-14 18:57:39,493 INFO L290 TraceCheckUtils]: 16: Hoare triple {377#(<= main_~i~0 4)} [61] L25-->L24-2: Formula: (not (< v_main_~i~0_2 4)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_2} AuxVars[] AssignedVars[] {377#(<= main_~i~0 4)} is VALID [2022-04-14 18:57:39,494 INFO L290 TraceCheckUtils]: 17: Hoare triple {377#(<= main_~i~0 4)} [64] L24-2-->L24-3: Formula: (= v_main_~i~0_3 (+ v_main_~i~0_4 1)) InVars {main_~i~0=v_main_~i~0_4} OutVars{main_~i~0=v_main_~i~0_3, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {378#(<= main_~i~0 5)} is VALID [2022-04-14 18:57:39,494 INFO L290 TraceCheckUtils]: 18: Hoare triple {378#(<= main_~i~0 5)} [57] L24-3-->L24-4: Formula: (not (<= v_main_~i~0_8 8)) InVars {main_~i~0=v_main_~i~0_8} OutVars{main_~i~0=v_main_~i~0_8} AuxVars[] AssignedVars[] {370#false} is VALID [2022-04-14 18:57:39,494 INFO L272 TraceCheckUtils]: 19: Hoare triple {370#false} [59] L24-4-->__VERIFIER_assertENTRY: Formula: (= (ite (or (= v_main_~sn~0_5 16) (= v_main_~sn~0_5 0)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~sn~0=v_main_~sn~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~sn~0] {370#false} is VALID [2022-04-14 18:57:39,495 INFO L290 TraceCheckUtils]: 20: Hoare triple {370#false} [63] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {370#false} is VALID [2022-04-14 18:57:39,495 INFO L290 TraceCheckUtils]: 21: Hoare triple {370#false} [65] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {370#false} is VALID [2022-04-14 18:57:39,495 INFO L290 TraceCheckUtils]: 22: Hoare triple {370#false} [67] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {370#false} is VALID [2022-04-14 18:57:39,495 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 18:57:39,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-14 18:57:39,682 INFO L290 TraceCheckUtils]: 22: Hoare triple {370#false} [67] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {370#false} is VALID [2022-04-14 18:57:39,685 INFO L290 TraceCheckUtils]: 21: Hoare triple {370#false} [65] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {370#false} is VALID [2022-04-14 18:57:39,685 INFO L290 TraceCheckUtils]: 20: Hoare triple {370#false} [63] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {370#false} is VALID [2022-04-14 18:57:39,685 INFO L272 TraceCheckUtils]: 19: Hoare triple {370#false} [59] L24-4-->__VERIFIER_assertENTRY: Formula: (= (ite (or (= v_main_~sn~0_5 16) (= v_main_~sn~0_5 0)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~sn~0=v_main_~sn~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~sn~0] {370#false} is VALID [2022-04-14 18:57:39,686 INFO L290 TraceCheckUtils]: 18: Hoare triple {462#(<= main_~i~0 8)} [57] L24-3-->L24-4: Formula: (not (<= v_main_~i~0_8 8)) InVars {main_~i~0=v_main_~i~0_8} OutVars{main_~i~0=v_main_~i~0_8} AuxVars[] AssignedVars[] {370#false} is VALID [2022-04-14 18:57:39,687 INFO L290 TraceCheckUtils]: 17: Hoare triple {466#(<= main_~i~0 7)} [64] L24-2-->L24-3: Formula: (= v_main_~i~0_3 (+ v_main_~i~0_4 1)) InVars {main_~i~0=v_main_~i~0_4} OutVars{main_~i~0=v_main_~i~0_3, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {462#(<= main_~i~0 8)} is VALID [2022-04-14 18:57:39,687 INFO L290 TraceCheckUtils]: 16: Hoare triple {466#(<= main_~i~0 7)} [61] L25-->L24-2: Formula: (not (< v_main_~i~0_2 4)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_2} AuxVars[] AssignedVars[] {466#(<= main_~i~0 7)} is VALID [2022-04-14 18:57:39,687 INFO L290 TraceCheckUtils]: 15: Hoare triple {466#(<= main_~i~0 7)} [58] L24-3-->L25: Formula: (<= v_main_~i~0_9 8) InVars {main_~i~0=v_main_~i~0_9} OutVars{main_~i~0=v_main_~i~0_9} AuxVars[] AssignedVars[] {466#(<= main_~i~0 7)} is VALID [2022-04-14 18:57:39,688 INFO L290 TraceCheckUtils]: 14: Hoare triple {476#(<= main_~i~0 6)} [64] L24-2-->L24-3: Formula: (= v_main_~i~0_3 (+ v_main_~i~0_4 1)) InVars {main_~i~0=v_main_~i~0_4} OutVars{main_~i~0=v_main_~i~0_3, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {466#(<= main_~i~0 7)} is VALID [2022-04-14 18:57:39,688 INFO L290 TraceCheckUtils]: 13: Hoare triple {476#(<= main_~i~0 6)} [60] L25-->L24-2: Formula: (and (= (+ v_main_~sn~0_2 2) v_main_~sn~0_1) (< v_main_~i~0_1 4)) InVars {main_~sn~0=v_main_~sn~0_2, main_~i~0=v_main_~i~0_1} OutVars{main_~sn~0=v_main_~sn~0_1, main_~i~0=v_main_~i~0_1} AuxVars[] AssignedVars[main_~sn~0] {476#(<= main_~i~0 6)} is VALID [2022-04-14 18:57:39,689 INFO L290 TraceCheckUtils]: 12: Hoare triple {476#(<= main_~i~0 6)} [58] L24-3-->L25: Formula: (<= v_main_~i~0_9 8) InVars {main_~i~0=v_main_~i~0_9} OutVars{main_~i~0=v_main_~i~0_9} AuxVars[] AssignedVars[] {476#(<= main_~i~0 6)} is VALID [2022-04-14 18:57:39,690 INFO L290 TraceCheckUtils]: 11: Hoare triple {378#(<= main_~i~0 5)} [64] L24-2-->L24-3: Formula: (= v_main_~i~0_3 (+ v_main_~i~0_4 1)) InVars {main_~i~0=v_main_~i~0_4} OutVars{main_~i~0=v_main_~i~0_3, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {476#(<= main_~i~0 6)} is VALID [2022-04-14 18:57:39,690 INFO L290 TraceCheckUtils]: 10: Hoare triple {378#(<= main_~i~0 5)} [60] L25-->L24-2: Formula: (and (= (+ v_main_~sn~0_2 2) v_main_~sn~0_1) (< v_main_~i~0_1 4)) InVars {main_~sn~0=v_main_~sn~0_2, main_~i~0=v_main_~i~0_1} OutVars{main_~sn~0=v_main_~sn~0_1, main_~i~0=v_main_~i~0_1} AuxVars[] AssignedVars[main_~sn~0] {378#(<= main_~i~0 5)} is VALID [2022-04-14 18:57:39,691 INFO L290 TraceCheckUtils]: 9: Hoare triple {378#(<= main_~i~0 5)} [58] L24-3-->L25: Formula: (<= v_main_~i~0_9 8) InVars {main_~i~0=v_main_~i~0_9} OutVars{main_~i~0=v_main_~i~0_9} AuxVars[] AssignedVars[] {378#(<= main_~i~0 5)} is VALID [2022-04-14 18:57:39,691 INFO L290 TraceCheckUtils]: 8: Hoare triple {377#(<= main_~i~0 4)} [64] L24-2-->L24-3: Formula: (= v_main_~i~0_3 (+ v_main_~i~0_4 1)) InVars {main_~i~0=v_main_~i~0_4} OutVars{main_~i~0=v_main_~i~0_3, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {378#(<= main_~i~0 5)} is VALID [2022-04-14 18:57:39,692 INFO L290 TraceCheckUtils]: 7: Hoare triple {377#(<= main_~i~0 4)} [60] L25-->L24-2: Formula: (and (= (+ v_main_~sn~0_2 2) v_main_~sn~0_1) (< v_main_~i~0_1 4)) InVars {main_~sn~0=v_main_~sn~0_2, main_~i~0=v_main_~i~0_1} OutVars{main_~sn~0=v_main_~sn~0_1, main_~i~0=v_main_~i~0_1} AuxVars[] AssignedVars[main_~sn~0] {377#(<= main_~i~0 4)} is VALID [2022-04-14 18:57:39,692 INFO L290 TraceCheckUtils]: 6: Hoare triple {377#(<= main_~i~0 4)} [58] L24-3-->L25: Formula: (<= v_main_~i~0_9 8) InVars {main_~i~0=v_main_~i~0_9} OutVars{main_~i~0=v_main_~i~0_9} AuxVars[] AssignedVars[] {377#(<= main_~i~0 4)} is VALID [2022-04-14 18:57:39,693 INFO L290 TraceCheckUtils]: 5: Hoare triple {369#true} [54] mainENTRY-->L24-3: Formula: (and (= v_main_~sn~0_3 0) (= v_main_~i~0_5 1)) InVars {} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_5} AuxVars[] AssignedVars[main_~sn~0, main_~i~0] {377#(<= main_~i~0 4)} is VALID [2022-04-14 18:57:39,693 INFO L272 TraceCheckUtils]: 4: Hoare triple {369#true} [51] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {369#true} is VALID [2022-04-14 18:57:39,693 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {369#true} {369#true} [70] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {369#true} is VALID [2022-04-14 18:57:39,694 INFO L290 TraceCheckUtils]: 2: Hoare triple {369#true} [55] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {369#true} is VALID [2022-04-14 18:57:39,694 INFO L290 TraceCheckUtils]: 1: Hoare triple {369#true} [52] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {369#true} is VALID [2022-04-14 18:57:39,694 INFO L272 TraceCheckUtils]: 0: Hoare triple {369#true} [50] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {369#true} is VALID [2022-04-14 18:57:39,695 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 18:57:39,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13468571] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-14 18:57:39,695 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-14 18:57:39,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 12 [2022-04-14 18:57:39,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550596336] [2022-04-14 18:57:39,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-14 18:57:39,701 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-04-14 18:57:39,703 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 18:57:39,704 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:39,734 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 18:57:39,734 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-14 18:57:39,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 18:57:39,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-14 18:57:39,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2022-04-14 18:57:39,740 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:39,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 18:57:39,980 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2022-04-14 18:57:39,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-14 18:57:39,980 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-04-14 18:57:39,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 18:57:39,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:39,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 46 transitions. [2022-04-14 18:57:39,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:39,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 46 transitions. [2022-04-14 18:57:39,985 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 11 states and 46 transitions. [2022-04-14 18:57:40,026 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 18:57:40,027 INFO L225 Difference]: With dead ends: 36 [2022-04-14 18:57:40,027 INFO L226 Difference]: Without dead ends: 36 [2022-04-14 18:57:40,028 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=146, Invalid=234, Unknown=0, NotChecked=0, Total=380 [2022-04-14 18:57:40,029 INFO L913 BasicCegarLoop]: 11 mSDtfsCounter, 46 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-14 18:57:40,029 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 28 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-14 18:57:40,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-04-14 18:57:40,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-04-14 18:57:40,033 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 18:57:40,033 INFO L82 GeneralOperation]: Start isEquivalent. First operand 36 states. Second operand has 36 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:40,034 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand has 36 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:40,034 INFO L87 Difference]: Start difference. First operand 36 states. Second operand has 36 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:40,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 18:57:40,036 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2022-04-14 18:57:40,036 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2022-04-14 18:57:40,036 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 18:57:40,036 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 18:57:40,037 INFO L74 IsIncluded]: Start isIncluded. First operand has 36 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 36 states. [2022-04-14 18:57:40,037 INFO L87 Difference]: Start difference. First operand has 36 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 36 states. [2022-04-14 18:57:40,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 18:57:40,039 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2022-04-14 18:57:40,039 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2022-04-14 18:57:40,039 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 18:57:40,039 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 18:57:40,039 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 18:57:40,039 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 18:57:40,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:40,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2022-04-14 18:57:40,041 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 23 [2022-04-14 18:57:40,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 18:57:40,041 INFO L478 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2022-04-14 18:57:40,042 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:57:40,042 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2022-04-14 18:57:40,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-04-14 18:57:40,043 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 18:57:40,043 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 18:57:40,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-14 18:57:40,263 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-04-14 18:57:40,264 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 18:57:40,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 18:57:40,264 INFO L85 PathProgramCache]: Analyzing trace with hash 838331851, now seen corresponding path program 2 times [2022-04-14 18:57:40,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 18:57:40,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219535134] [2022-04-14 18:57:40,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 18:57:40,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 18:57:40,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-14 18:57:40,292 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-14 18:57:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-14 18:57:40,325 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-14 18:57:40,326 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-14 18:57:40,327 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-14 18:57:40,328 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-14 18:57:40,332 INFO L719 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2022-04-14 18:57:40,335 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-14 18:57:40,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 06:57:40 BasicIcfg [2022-04-14 18:57:40,357 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-14 18:57:40,358 INFO L158 Benchmark]: Toolchain (without parser) took 3757.73ms. Allocated memory was 181.4MB in the beginning and 224.4MB in the end (delta: 43.0MB). Free memory was 125.5MB in the beginning and 114.7MB in the end (delta: 10.8MB). Peak memory consumption was 54.3MB. Max. memory is 8.0GB. [2022-04-14 18:57:40,358 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 181.4MB. Free memory is still 141.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-14 18:57:40,359 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.42ms. Allocated memory was 181.4MB in the beginning and 224.4MB in the end (delta: 43.0MB). Free memory was 125.4MB in the beginning and 195.3MB in the end (delta: -69.9MB). Peak memory consumption was 8.2MB. Max. memory is 8.0GB. [2022-04-14 18:57:40,359 INFO L158 Benchmark]: Boogie Preprocessor took 38.34ms. Allocated memory is still 224.4MB. Free memory was 195.3MB in the beginning and 193.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-14 18:57:40,359 INFO L158 Benchmark]: RCFGBuilder took 284.10ms. Allocated memory is still 224.4MB. Free memory was 193.8MB in the beginning and 182.8MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-14 18:57:40,360 INFO L158 Benchmark]: IcfgTransformer took 22.72ms. Allocated memory is still 224.4MB. Free memory was 182.8MB in the beginning and 181.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-14 18:57:40,360 INFO L158 Benchmark]: TraceAbstraction took 3136.18ms. Allocated memory is still 224.4MB. Free memory was 181.2MB in the beginning and 114.7MB in the end (delta: 66.5MB). Peak memory consumption was 67.1MB. Max. memory is 8.0GB. [2022-04-14 18:57:40,362 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 181.4MB. Free memory is still 141.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 268.42ms. Allocated memory was 181.4MB in the beginning and 224.4MB in the end (delta: 43.0MB). Free memory was 125.4MB in the beginning and 195.3MB in the end (delta: -69.9MB). Peak memory consumption was 8.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.34ms. Allocated memory is still 224.4MB. Free memory was 195.3MB in the beginning and 193.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 284.10ms. Allocated memory is still 224.4MB. Free memory was 193.8MB in the beginning and 182.8MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 22.72ms. Allocated memory is still 224.4MB. Free memory was 182.8MB in the beginning and 181.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 3136.18ms. Allocated memory is still 224.4MB. Free memory was 181.2MB in the beginning and 114.7MB in the end (delta: 66.5MB). Peak memory consumption was 67.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 16]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] int i, sn=0; [L24] i=1 VAL [i=1, sn=0] [L24] COND TRUE i<=8 VAL [i=1, sn=0] [L25] COND TRUE i<4 [L26] sn = sn + (2) VAL [i=1, sn=2] [L24] i++ VAL [i=2, sn=2] [L24] COND TRUE i<=8 VAL [i=2, sn=2] [L25] COND TRUE i<4 [L26] sn = sn + (2) VAL [i=2, sn=4] [L24] i++ VAL [i=3, sn=4] [L24] COND TRUE i<=8 VAL [i=3, sn=4] [L25] COND TRUE i<4 [L26] sn = sn + (2) VAL [i=3, sn=6] [L24] i++ VAL [i=4, sn=6] [L24] COND TRUE i<=8 VAL [i=4, sn=6] [L25] COND FALSE !(i<4) VAL [i=4, sn=6] [L24] i++ VAL [i=5, sn=6] [L24] COND TRUE i<=8 VAL [i=5, sn=6] [L25] COND FALSE !(i<4) VAL [i=5, sn=6] [L24] i++ VAL [i=6, sn=6] [L24] COND TRUE i<=8 VAL [i=6, sn=6] [L25] COND FALSE !(i<4) VAL [i=6, sn=6] [L24] i++ VAL [i=7, sn=6] [L24] COND TRUE i<=8 VAL [i=7, sn=6] [L25] COND FALSE !(i<4) VAL [i=7, sn=6] [L24] i++ VAL [i=8, sn=6] [L24] COND TRUE i<=8 VAL [i=8, sn=6] [L25] COND FALSE !(i<4) VAL [i=8, sn=6] [L24] i++ VAL [i=9, sn=6] [L24] COND FALSE !(i<=8) VAL [i=9, sn=6] [L28] CALL __VERIFIER_assert(sn==8*(2) || sn == 0) VAL [\old(cond)=0] [L15] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L16] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 5, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 97 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 96 mSDsluCounter, 98 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92 IncrementalHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 54 mSDtfsCounter, 92 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 267 SizeOfPredicates, 0 NumberOfNonLiveVariables, 126 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 0/69 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-04-14 18:57:40,389 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...