/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/reducercommutativity/avg20-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 08:23:25,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 08:23:25,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 08:23:25,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 08:23:25,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 08:23:25,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 08:23:25,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 08:23:25,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 08:23:25,617 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 08:23:25,617 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 08:23:25,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 08:23:25,619 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 08:23:25,619 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 08:23:25,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 08:23:25,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 08:23:25,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 08:23:25,621 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 08:23:25,622 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 08:23:25,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 08:23:25,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 08:23:25,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 08:23:25,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 08:23:25,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 08:23:25,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 08:23:25,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 08:23:25,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 08:23:25,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 08:23:25,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 08:23:25,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 08:23:25,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-31 08:23:25,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 08:23:25,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 08:23:25,638 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 08:23:25,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 08:23:25,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 08:23:25,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 08:23:25,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 08:23:25,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 08:23:25,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 08:23:25,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 08:23:25,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 08:23:25,642 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-01-31 08:23:25,647 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 08:23:25,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 08:23:25,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 08:23:25,648 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 08:23:25,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 08:23:25,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 08:23:25,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 08:23:25,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 08:23:25,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 08:23:25,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 08:23:25,649 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 08:23:25,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 08:23:25,649 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 08:23:25,649 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 08:23:25,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 08:23:25,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 08:23:25,650 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 08:23:25,650 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 08:23:25,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 08:23:25,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 08:23:25,650 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 08:23:25,650 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-31 08:23:25,651 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 08:23:25,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 08:23:25,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 08:23:25,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 08:23:25,851 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 08:23:25,851 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 08:23:25,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/reducercommutativity/avg20-2.i [2022-01-31 08:23:25,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb859fa4f/95807fc9673343afb035a1e983802784/FLAG401648b6a [2022-01-31 08:23:26,258 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 08:23:26,258 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/reducercommutativity/avg20-2.i [2022-01-31 08:23:26,271 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb859fa4f/95807fc9673343afb035a1e983802784/FLAG401648b6a [2022-01-31 08:23:26,681 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb859fa4f/95807fc9673343afb035a1e983802784 [2022-01-31 08:23:26,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 08:23:26,684 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-31 08:23:26,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 08:23:26,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 08:23:26,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 08:23:26,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 08:23:26" (1/1) ... [2022-01-31 08:23:26,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bb47836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:23:26, skipping insertion in model container [2022-01-31 08:23:26,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 08:23:26" (1/1) ... [2022-01-31 08:23:26,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 08:23:26,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 08:23:26,836 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/reducercommutativity/avg20-2.i[1282,1295] [2022-01-31 08:23:26,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 08:23:26,843 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 08:23:26,856 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/reducercommutativity/avg20-2.i[1282,1295] [2022-01-31 08:23:26,857 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 08:23:26,867 INFO L208 MainTranslator]: Completed translation [2022-01-31 08:23:26,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:23:26 WrapperNode [2022-01-31 08:23:26,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 08:23:26,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 08:23:26,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 08:23:26,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 08:23:26,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:23:26" (1/1) ... [2022-01-31 08:23:26,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:23:26" (1/1) ... [2022-01-31 08:23:26,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:23:26" (1/1) ... [2022-01-31 08:23:26,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:23:26" (1/1) ... [2022-01-31 08:23:26,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:23:26" (1/1) ... [2022-01-31 08:23:26,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:23:26" (1/1) ... [2022-01-31 08:23:26,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:23:26" (1/1) ... [2022-01-31 08:23:26,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 08:23:26,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 08:23:26,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 08:23:26,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 08:23:26,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:23:26" (1/1) ... [2022-01-31 08:23:26,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 08:23:26,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 08:23:26,917 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-31 08:23:26,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-31 08:23:26,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 08:23:26,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 08:23:26,941 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 08:23:26,942 INFO L138 BoogieDeclarations]: Found implementation of procedure avg [2022-01-31 08:23:26,942 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 08:23:26,942 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 08:23:26,942 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 08:23:26,942 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-01-31 08:23:26,942 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-01-31 08:23:26,942 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 08:23:26,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 08:23:26,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 08:23:26,942 INFO L130 BoogieDeclarations]: Found specification of procedure avg [2022-01-31 08:23:26,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 08:23:26,943 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 08:23:26,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 08:23:26,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 08:23:26,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 08:23:26,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 08:23:26,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 08:23:26,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 08:23:26,996 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 08:23:26,997 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 08:23:27,093 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 08:23:27,097 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 08:23:27,097 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-31 08:23:27,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 08:23:27 BoogieIcfgContainer [2022-01-31 08:23:27,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 08:23:27,099 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-31 08:23:27,099 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-31 08:23:27,100 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-31 08:23:27,102 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 08:23:27" (1/1) ... [2022-01-31 08:23:27,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 08:23:27 BasicIcfg [2022-01-31 08:23:27,116 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-31 08:23:27,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 08:23:27,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 08:23:27,120 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 08:23:27,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 08:23:26" (1/4) ... [2022-01-31 08:23:27,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a107d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 08:23:27, skipping insertion in model container [2022-01-31 08:23:27,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:23:26" (2/4) ... [2022-01-31 08:23:27,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a107d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 08:23:27, skipping insertion in model container [2022-01-31 08:23:27,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 08:23:27" (3/4) ... [2022-01-31 08:23:27,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a107d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 08:23:27, skipping insertion in model container [2022-01-31 08:23:27,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 08:23:27" (4/4) ... [2022-01-31 08:23:27,122 INFO L111 eAbstractionObserver]: Analyzing ICFG avg20-2.iJordan [2022-01-31 08:23:27,126 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-01-31 08:23:27,126 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 08:23:27,155 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 08:23:27,159 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-31 08:23:27,160 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 08:23:27,168 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 21 states have (on average 1.380952380952381) internal successors, (29), 22 states have internal predecessors, (29), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-01-31 08:23:27,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-31 08:23:27,174 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 08:23:27,175 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 08:23:27,175 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 08:23:27,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 08:23:27,179 INFO L85 PathProgramCache]: Analyzing trace with hash 142417289, now seen corresponding path program 1 times [2022-01-31 08:23:27,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 08:23:27,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966478809] [2022-01-31 08:23:27,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 08:23:27,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 08:23:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:27,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 08:23:27,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:27,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 08:23:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:27,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-01-31 08:23:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:27,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 08:23:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:27,341 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-01-31 08:23:27,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 08:23:27,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966478809] [2022-01-31 08:23:27,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966478809] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 08:23:27,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 08:23:27,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-31 08:23:27,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239403560] [2022-01-31 08:23:27,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 08:23:27,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 08:23:27,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 08:23:27,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 08:23:27,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-31 08:23:27,367 INFO L87 Difference]: Start difference. First operand has 31 states, 21 states have (on average 1.380952380952381) internal successors, (29), 22 states have internal predecessors, (29), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-31 08:23:27,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 08:23:27,413 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-01-31 08:23:27,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 08:23:27,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2022-01-31 08:23:27,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 08:23:27,421 INFO L225 Difference]: With dead ends: 31 [2022-01-31 08:23:27,421 INFO L226 Difference]: Without dead ends: 26 [2022-01-31 08:23:27,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-31 08:23:27,425 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 22 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 08:23:27,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 35 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 08:23:27,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-01-31 08:23:27,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-01-31 08:23:27,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 08:23:27,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2022-01-31 08:23:27,460 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 32 [2022-01-31 08:23:27,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 08:23:27,460 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2022-01-31 08:23:27,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-31 08:23:27,460 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2022-01-31 08:23:27,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-31 08:23:27,462 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 08:23:27,462 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 08:23:27,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 08:23:27,462 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 08:23:27,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 08:23:27,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1780278, now seen corresponding path program 1 times [2022-01-31 08:23:27,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 08:23:27,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868035333] [2022-01-31 08:23:27,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 08:23:27,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 08:23:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:27,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 08:23:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:27,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 08:23:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:27,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-01-31 08:23:27,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:27,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 08:23:27,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:27,585 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-31 08:23:27,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 08:23:27,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868035333] [2022-01-31 08:23:27,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868035333] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 08:23:27,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233729369] [2022-01-31 08:23:27,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 08:23:27,587 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 08:23:27,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 08:23:27,592 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 08:23:27,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-31 08:23:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:27,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-31 08:23:27,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 08:23:27,721 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-01-31 08:23:27,722 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 08:23:27,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233729369] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 08:23:27,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-31 08:23:27,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-01-31 08:23:27,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742092035] [2022-01-31 08:23:27,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 08:23:27,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 08:23:27,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 08:23:27,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 08:23:27,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-31 08:23:27,724 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-31 08:23:27,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 08:23:27,731 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2022-01-31 08:23:27,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 08:23:27,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2022-01-31 08:23:27,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 08:23:27,732 INFO L225 Difference]: With dead ends: 28 [2022-01-31 08:23:27,732 INFO L226 Difference]: Without dead ends: 28 [2022-01-31 08:23:27,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-31 08:23:27,734 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 08:23:27,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 54 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 08:23:27,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-01-31 08:23:27,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2022-01-31 08:23:27,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 08:23:27,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-01-31 08:23:27,738 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 32 [2022-01-31 08:23:27,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 08:23:27,738 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-01-31 08:23:27,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-31 08:23:27,738 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-01-31 08:23:27,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-31 08:23:27,739 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 08:23:27,739 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 08:23:27,756 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-31 08:23:27,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 08:23:27,952 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 08:23:27,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 08:23:27,953 INFO L85 PathProgramCache]: Analyzing trace with hash 561300940, now seen corresponding path program 1 times [2022-01-31 08:23:27,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 08:23:27,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201791571] [2022-01-31 08:23:27,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 08:23:27,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 08:23:27,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:28,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 08:23:28,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:28,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-01-31 08:23:28,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:28,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-31 08:23:28,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:28,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-01-31 08:23:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:28,074 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-31 08:23:28,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 08:23:28,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201791571] [2022-01-31 08:23:28,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201791571] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 08:23:28,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4980919] [2022-01-31 08:23:28,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 08:23:28,075 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 08:23:28,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 08:23:28,076 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 08:23:28,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-31 08:23:28,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:28,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-31 08:23:28,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 08:23:28,185 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-01-31 08:23:28,186 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 08:23:28,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4980919] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 08:23:28,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-31 08:23:28,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2022-01-31 08:23:28,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907462201] [2022-01-31 08:23:28,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 08:23:28,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 08:23:28,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 08:23:28,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 08:23:28,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-31 08:23:28,188 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-31 08:23:28,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 08:23:28,194 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-01-31 08:23:28,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 08:23:28,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2022-01-31 08:23:28,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 08:23:28,195 INFO L225 Difference]: With dead ends: 29 [2022-01-31 08:23:28,195 INFO L226 Difference]: Without dead ends: 29 [2022-01-31 08:23:28,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-31 08:23:28,196 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 08:23:28,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 54 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 08:23:28,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-01-31 08:23:28,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2022-01-31 08:23:28,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 08:23:28,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2022-01-31 08:23:28,200 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 34 [2022-01-31 08:23:28,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 08:23:28,200 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2022-01-31 08:23:28,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-31 08:23:28,201 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2022-01-31 08:23:28,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-31 08:23:28,201 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 08:23:28,202 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 08:23:28,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-31 08:23:28,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-01-31 08:23:28,420 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 08:23:28,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 08:23:28,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1061096375, now seen corresponding path program 1 times [2022-01-31 08:23:28,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 08:23:28,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068532656] [2022-01-31 08:23:28,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 08:23:28,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 08:23:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:28,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 08:23:28,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:28,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-01-31 08:23:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:28,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-01-31 08:23:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:28,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-01-31 08:23:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:28,486 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-31 08:23:28,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 08:23:28,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068532656] [2022-01-31 08:23:28,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068532656] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 08:23:28,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102105023] [2022-01-31 08:23:28,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 08:23:28,487 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 08:23:28,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 08:23:28,488 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 08:23:28,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-31 08:23:28,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:28,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-31 08:23:28,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 08:23:28,613 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-01-31 08:23:28,614 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 08:23:28,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102105023] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 08:23:28,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-31 08:23:28,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-01-31 08:23:28,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759262401] [2022-01-31 08:23:28,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 08:23:28,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 08:23:28,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 08:23:28,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 08:23:28,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-31 08:23:28,624 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-31 08:23:28,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 08:23:28,638 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2022-01-31 08:23:28,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 08:23:28,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2022-01-31 08:23:28,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 08:23:28,639 INFO L225 Difference]: With dead ends: 30 [2022-01-31 08:23:28,639 INFO L226 Difference]: Without dead ends: 30 [2022-01-31 08:23:28,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-31 08:23:28,641 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 08:23:28,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 54 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 08:23:28,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-01-31 08:23:28,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2022-01-31 08:23:28,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 08:23:28,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2022-01-31 08:23:28,645 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 40 [2022-01-31 08:23:28,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 08:23:28,646 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2022-01-31 08:23:28,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-31 08:23:28,646 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2022-01-31 08:23:28,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-31 08:23:28,647 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 08:23:28,647 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 08:23:28,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-31 08:23:28,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 08:23:28,867 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 08:23:28,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 08:23:28,868 INFO L85 PathProgramCache]: Analyzing trace with hash -619501722, now seen corresponding path program 1 times [2022-01-31 08:23:28,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 08:23:28,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593570426] [2022-01-31 08:23:28,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 08:23:28,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 08:23:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:28,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 08:23:28,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:28,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-01-31 08:23:28,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:28,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-01-31 08:23:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:28,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 08:23:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:28,946 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-01-31 08:23:28,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 08:23:28,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593570426] [2022-01-31 08:23:28,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593570426] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 08:23:28,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067416377] [2022-01-31 08:23:28,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 08:23:28,947 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 08:23:28,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 08:23:28,948 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 08:23:28,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-31 08:23:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:28,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-31 08:23:28,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 08:23:29,065 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-01-31 08:23:29,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 08:23:29,140 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-01-31 08:23:29,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067416377] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 08:23:29,141 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 08:23:29,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2022-01-31 08:23:29,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120686192] [2022-01-31 08:23:29,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 08:23:29,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-31 08:23:29,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 08:23:29,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-31 08:23:29,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-31 08:23:29,142 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-01-31 08:23:29,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 08:23:29,232 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2022-01-31 08:23:29,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-31 08:23:29,232 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 42 [2022-01-31 08:23:29,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 08:23:29,233 INFO L225 Difference]: With dead ends: 35 [2022-01-31 08:23:29,233 INFO L226 Difference]: Without dead ends: 35 [2022-01-31 08:23:29,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2022-01-31 08:23:29,234 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 28 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 08:23:29,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 37 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 08:23:29,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-01-31 08:23:29,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-01-31 08:23:29,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 08:23:29,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2022-01-31 08:23:29,237 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 42 [2022-01-31 08:23:29,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 08:23:29,237 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2022-01-31 08:23:29,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-01-31 08:23:29,237 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2022-01-31 08:23:29,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-31 08:23:29,238 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 08:23:29,238 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 08:23:29,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-31 08:23:29,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 08:23:29,443 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 08:23:29,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 08:23:29,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1074871916, now seen corresponding path program 2 times [2022-01-31 08:23:29,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 08:23:29,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533637792] [2022-01-31 08:23:29,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 08:23:29,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 08:23:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:29,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 08:23:29,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:29,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 08:23:29,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:29,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-01-31 08:23:29,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:29,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-01-31 08:23:29,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:29,504 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-31 08:23:29,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 08:23:29,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533637792] [2022-01-31 08:23:29,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533637792] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 08:23:29,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699898765] [2022-01-31 08:23:29,505 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-31 08:23:29,505 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 08:23:29,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 08:23:29,507 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 08:23:29,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-31 08:23:29,568 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-31 08:23:29,568 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-31 08:23:29,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-31 08:23:29,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 08:23:29,657 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-01-31 08:23:29,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 08:23:29,753 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-01-31 08:23:29,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699898765] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 08:23:29,754 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 08:23:29,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2022-01-31 08:23:29,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091058574] [2022-01-31 08:23:29,754 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 08:23:29,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-31 08:23:29,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 08:23:29,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-31 08:23:29,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-01-31 08:23:29,755 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 14 states have internal predecessors, (52), 2 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-01-31 08:23:29,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 08:23:29,931 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2022-01-31 08:23:29,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-31 08:23:29,931 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 14 states have internal predecessors, (52), 2 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 48 [2022-01-31 08:23:29,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 08:23:29,934 INFO L225 Difference]: With dead ends: 50 [2022-01-31 08:23:29,935 INFO L226 Difference]: Without dead ends: 50 [2022-01-31 08:23:29,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=213, Invalid=489, Unknown=0, NotChecked=0, Total=702 [2022-01-31 08:23:29,937 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 47 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 08:23:29,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 50 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 08:23:29,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-01-31 08:23:29,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2022-01-31 08:23:29,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 41 states have (on average 1.0731707317073171) internal successors, (44), 41 states have internal predecessors, (44), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 08:23:29,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2022-01-31 08:23:29,952 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 48 [2022-01-31 08:23:29,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 08:23:29,952 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2022-01-31 08:23:29,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 14 states have internal predecessors, (52), 2 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-01-31 08:23:29,953 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2022-01-31 08:23:29,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-31 08:23:29,953 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 08:23:29,953 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 08:23:29,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-31 08:23:30,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 08:23:30,172 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 08:23:30,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 08:23:30,172 INFO L85 PathProgramCache]: Analyzing trace with hash 859300597, now seen corresponding path program 3 times [2022-01-31 08:23:30,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 08:23:30,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512389255] [2022-01-31 08:23:30,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 08:23:30,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 08:23:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:30,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 08:23:30,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:30,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-01-31 08:23:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:30,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-01-31 08:23:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:30,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-01-31 08:23:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:30,249 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2022-01-31 08:23:30,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 08:23:30,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512389255] [2022-01-31 08:23:30,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512389255] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 08:23:30,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823573495] [2022-01-31 08:23:30,250 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-31 08:23:30,250 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 08:23:30,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 08:23:30,251 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 08:23:30,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-31 08:23:30,310 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-01-31 08:23:30,310 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-31 08:23:30,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-31 08:23:30,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 08:23:30,382 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 34 proven. 1 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2022-01-31 08:23:30,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 08:23:30,452 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2022-01-31 08:23:30,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823573495] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 08:23:30,452 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 08:23:30,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2022-01-31 08:23:30,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302362921] [2022-01-31 08:23:30,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 08:23:30,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-31 08:23:30,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 08:23:30,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-31 08:23:30,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-31 08:23:30,454 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-31 08:23:30,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 08:23:30,520 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2022-01-31 08:23:30,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-31 08:23:30,520 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 66 [2022-01-31 08:23:30,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 08:23:30,521 INFO L225 Difference]: With dead ends: 55 [2022-01-31 08:23:30,521 INFO L226 Difference]: Without dead ends: 55 [2022-01-31 08:23:30,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2022-01-31 08:23:30,521 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 28 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 08:23:30,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 37 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 08:23:30,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-01-31 08:23:30,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2022-01-31 08:23:30,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 47 states have (on average 1.0638297872340425) internal successors, (50), 47 states have internal predecessors, (50), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 08:23:30,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2022-01-31 08:23:30,525 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 66 [2022-01-31 08:23:30,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 08:23:30,525 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2022-01-31 08:23:30,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-31 08:23:30,525 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2022-01-31 08:23:30,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-31 08:23:30,526 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 08:23:30,526 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 08:23:30,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-31 08:23:30,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 08:23:30,740 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 08:23:30,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 08:23:30,740 INFO L85 PathProgramCache]: Analyzing trace with hash 49480076, now seen corresponding path program 4 times [2022-01-31 08:23:30,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 08:23:30,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876527825] [2022-01-31 08:23:30,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 08:23:30,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 08:23:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:30,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 08:23:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:30,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-01-31 08:23:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:30,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-01-31 08:23:30,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:30,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-01-31 08:23:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:30,856 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-01-31 08:23:30,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 08:23:30,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876527825] [2022-01-31 08:23:30,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876527825] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 08:23:30,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595071489] [2022-01-31 08:23:30,857 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-31 08:23:30,857 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 08:23:30,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 08:23:30,858 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 08:23:30,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-31 08:23:30,931 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-31 08:23:30,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-31 08:23:30,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-31 08:23:30,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 08:23:31,024 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 32 proven. 4 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-01-31 08:23:31,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 08:23:31,115 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 32 proven. 4 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-01-31 08:23:31,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595071489] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 08:23:31,115 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 08:23:31,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 20 [2022-01-31 08:23:31,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566410703] [2022-01-31 08:23:31,116 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 08:23:31,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-31 08:23:31,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 08:23:31,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-31 08:23:31,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-01-31 08:23:31,118 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand has 20 states, 20 states have (on average 3.2) internal successors, (64), 19 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-01-31 08:23:31,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 08:23:31,355 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2022-01-31 08:23:31,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-31 08:23:31,355 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 19 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2022-01-31 08:23:31,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 08:23:31,359 INFO L225 Difference]: With dead ends: 66 [2022-01-31 08:23:31,359 INFO L226 Difference]: Without dead ends: 66 [2022-01-31 08:23:31,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=315, Invalid=1017, Unknown=0, NotChecked=0, Total=1332 [2022-01-31 08:23:31,360 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 55 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 08:23:31,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 40 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 08:23:31,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-01-31 08:23:31,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 65. [2022-01-31 08:23:31,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 57 states have (on average 1.0526315789473684) internal successors, (60), 57 states have internal predecessors, (60), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 08:23:31,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2022-01-31 08:23:31,370 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 72 [2022-01-31 08:23:31,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 08:23:31,370 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2022-01-31 08:23:31,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 19 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-01-31 08:23:31,370 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2022-01-31 08:23:31,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-31 08:23:31,371 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 08:23:31,371 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 11, 11, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 08:23:31,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-31 08:23:31,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 08:23:31,584 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 08:23:31,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 08:23:31,584 INFO L85 PathProgramCache]: Analyzing trace with hash -2077107966, now seen corresponding path program 5 times [2022-01-31 08:23:31,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 08:23:31,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227747786] [2022-01-31 08:23:31,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 08:23:31,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 08:23:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:31,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 08:23:31,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:31,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-01-31 08:23:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:31,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-01-31 08:23:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:31,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-01-31 08:23:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:31,715 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2022-01-31 08:23:31,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 08:23:31,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227747786] [2022-01-31 08:23:31,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227747786] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 08:23:31,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569375874] [2022-01-31 08:23:31,715 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-31 08:23:31,715 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 08:23:31,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 08:23:31,716 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 08:23:31,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-31 08:23:32,135 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2022-01-31 08:23:32,135 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-31 08:23:32,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-31 08:23:32,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 08:23:32,274 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 172 proven. 36 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2022-01-31 08:23:32,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 08:23:32,452 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 0 proven. 212 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-01-31 08:23:32,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569375874] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 08:23:32,452 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 08:23:32,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9, 9] total 29 [2022-01-31 08:23:32,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908396571] [2022-01-31 08:23:32,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 08:23:32,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-31 08:23:32,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 08:23:32,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-31 08:23:32,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=600, Unknown=0, NotChecked=0, Total=812 [2022-01-31 08:23:32,454 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand has 29 states, 29 states have (on average 2.7586206896551726) internal successors, (80), 28 states have internal predecessors, (80), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-01-31 08:23:32,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 08:23:32,846 INFO L93 Difference]: Finished difference Result 84 states and 88 transitions. [2022-01-31 08:23:32,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-31 08:23:32,846 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.7586206896551726) internal successors, (80), 28 states have internal predecessors, (80), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 98 [2022-01-31 08:23:32,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 08:23:32,847 INFO L225 Difference]: With dead ends: 84 [2022-01-31 08:23:32,847 INFO L226 Difference]: Without dead ends: 84 [2022-01-31 08:23:32,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=630, Invalid=2340, Unknown=0, NotChecked=0, Total=2970 [2022-01-31 08:23:32,848 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 77 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 08:23:32,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 45 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 08:23:32,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-01-31 08:23:32,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 83. [2022-01-31 08:23:32,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 75 states have (on average 1.04) internal successors, (78), 75 states have internal predecessors, (78), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 08:23:32,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 87 transitions. [2022-01-31 08:23:32,852 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 87 transitions. Word has length 98 [2022-01-31 08:23:32,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 08:23:32,852 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 87 transitions. [2022-01-31 08:23:32,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.7586206896551726) internal successors, (80), 28 states have internal predecessors, (80), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-01-31 08:23:32,852 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 87 transitions. [2022-01-31 08:23:32,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-01-31 08:23:32,853 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 08:23:32,853 INFO L514 BasicCegarLoop]: trace histogram [42, 42, 12, 12, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 08:23:32,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-31 08:23:33,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-01-31 08:23:33,064 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 08:23:33,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 08:23:33,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1610204012, now seen corresponding path program 6 times [2022-01-31 08:23:33,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 08:23:33,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416545269] [2022-01-31 08:23:33,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 08:23:33,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 08:23:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:33,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 08:23:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:33,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 08:23:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:33,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-01-31 08:23:33,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:33,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 08:23:33,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:33,214 INFO L134 CoverageAnalysis]: Checked inductivity of 2023 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 1879 trivial. 0 not checked. [2022-01-31 08:23:33,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 08:23:33,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416545269] [2022-01-31 08:23:33,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416545269] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 08:23:33,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766073045] [2022-01-31 08:23:33,215 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-31 08:23:33,215 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 08:23:33,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 08:23:33,216 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 08:23:33,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-31 08:23:33,482 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2022-01-31 08:23:33,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-31 08:23:33,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-31 08:23:33,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 08:23:33,663 INFO L134 CoverageAnalysis]: Checked inductivity of 2023 backedges. 850 proven. 16 refuted. 0 times theorem prover too weak. 1157 trivial. 0 not checked. [2022-01-31 08:23:33,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 08:23:33,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2023 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2007 trivial. 0 not checked. [2022-01-31 08:23:33,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766073045] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 08:23:33,871 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 08:23:33,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7, 7] total 26 [2022-01-31 08:23:33,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493847207] [2022-01-31 08:23:33,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 08:23:33,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-31 08:23:33,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 08:23:33,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-31 08:23:33,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=478, Unknown=0, NotChecked=0, Total=650 [2022-01-31 08:23:33,873 INFO L87 Difference]: Start difference. First operand 83 states and 87 transitions. Second operand has 26 states, 26 states have (on average 2.8846153846153846) internal successors, (75), 25 states have internal predecessors, (75), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-01-31 08:23:34,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 08:23:34,214 INFO L93 Difference]: Finished difference Result 98 states and 102 transitions. [2022-01-31 08:23:34,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-31 08:23:34,214 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.8846153846153846) internal successors, (75), 25 states have internal predecessors, (75), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 148 [2022-01-31 08:23:34,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 08:23:34,215 INFO L225 Difference]: With dead ends: 98 [2022-01-31 08:23:34,215 INFO L226 Difference]: Without dead ends: 98 [2022-01-31 08:23:34,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=510, Invalid=1842, Unknown=0, NotChecked=0, Total=2352 [2022-01-31 08:23:34,216 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 69 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 08:23:34,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 55 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 08:23:34,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-01-31 08:23:34,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2022-01-31 08:23:34,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 89 states have (on average 1.0337078651685394) internal successors, (92), 89 states have internal predecessors, (92), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 08:23:34,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 101 transitions. [2022-01-31 08:23:34,220 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 101 transitions. Word has length 148 [2022-01-31 08:23:34,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 08:23:34,220 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 101 transitions. [2022-01-31 08:23:34,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.8846153846153846) internal successors, (75), 25 states have internal predecessors, (75), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-01-31 08:23:34,220 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 101 transitions. [2022-01-31 08:23:34,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-01-31 08:23:34,221 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 08:23:34,221 INFO L514 BasicCegarLoop]: trace histogram [42, 42, 13, 13, 10, 10, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 08:23:34,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-01-31 08:23:34,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-01-31 08:23:34,435 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 08:23:34,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 08:23:34,436 INFO L85 PathProgramCache]: Analyzing trace with hash -463648548, now seen corresponding path program 7 times [2022-01-31 08:23:34,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 08:23:34,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502829966] [2022-01-31 08:23:34,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 08:23:34,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 08:23:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:34,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 08:23:34,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:34,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-31 08:23:34,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:34,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-01-31 08:23:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:34,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-01-31 08:23:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:34,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2132 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 1963 trivial. 0 not checked. [2022-01-31 08:23:34,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 08:23:34,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502829966] [2022-01-31 08:23:34,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502829966] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 08:23:34,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316762084] [2022-01-31 08:23:34,606 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-31 08:23:34,606 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 08:23:34,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 08:23:34,607 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 08:23:34,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-31 08:23:34,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:34,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 15 conjunts are in the unsatisfiable core [2022-01-31 08:23:34,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 08:23:34,899 INFO L134 CoverageAnalysis]: Checked inductivity of 2132 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 1963 trivial. 0 not checked. [2022-01-31 08:23:34,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 08:23:35,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2132 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 1963 trivial. 0 not checked. [2022-01-31 08:23:35,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316762084] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 08:23:35,146 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 08:23:35,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 24 [2022-01-31 08:23:35,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840421663] [2022-01-31 08:23:35,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 08:23:35,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-31 08:23:35,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 08:23:35,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-31 08:23:35,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=297, Unknown=0, NotChecked=0, Total=552 [2022-01-31 08:23:35,148 INFO L87 Difference]: Start difference. First operand 97 states and 101 transitions. Second operand has 24 states, 24 states have (on average 2.875) internal successors, (69), 23 states have internal predecessors, (69), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-01-31 08:23:35,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 08:23:35,438 INFO L93 Difference]: Finished difference Result 111 states and 115 transitions. [2022-01-31 08:23:35,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-31 08:23:35,439 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.875) internal successors, (69), 23 states have internal predecessors, (69), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 162 [2022-01-31 08:23:35,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 08:23:35,439 INFO L225 Difference]: With dead ends: 111 [2022-01-31 08:23:35,439 INFO L226 Difference]: Without dead ends: 111 [2022-01-31 08:23:35,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 324 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=716, Invalid=1176, Unknown=0, NotChecked=0, Total=1892 [2022-01-31 08:23:35,441 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 58 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 08:23:35,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 62 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 08:23:35,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-01-31 08:23:35,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2022-01-31 08:23:35,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 103 states have (on average 1.029126213592233) internal successors, (106), 103 states have internal predecessors, (106), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 08:23:35,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 115 transitions. [2022-01-31 08:23:35,444 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 115 transitions. Word has length 162 [2022-01-31 08:23:35,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 08:23:35,444 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 115 transitions. [2022-01-31 08:23:35,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.875) internal successors, (69), 23 states have internal predecessors, (69), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-01-31 08:23:35,444 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 115 transitions. [2022-01-31 08:23:35,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-31 08:23:35,445 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 08:23:35,445 INFO L514 BasicCegarLoop]: trace histogram [42, 42, 20, 20, 10, 10, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 08:23:35,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-01-31 08:23:35,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-01-31 08:23:35,655 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 08:23:35,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 08:23:35,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1979331862, now seen corresponding path program 8 times [2022-01-31 08:23:35,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 08:23:35,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326347079] [2022-01-31 08:23:35,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 08:23:35,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 08:23:35,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:35,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 08:23:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:35,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 08:23:35,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:35,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-01-31 08:23:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:35,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-01-31 08:23:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:35,879 INFO L134 CoverageAnalysis]: Checked inductivity of 2363 backedges. 0 proven. 1044 refuted. 0 times theorem prover too weak. 1319 trivial. 0 not checked. [2022-01-31 08:23:35,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 08:23:35,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326347079] [2022-01-31 08:23:35,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326347079] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 08:23:35,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582385383] [2022-01-31 08:23:35,880 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-31 08:23:35,880 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 08:23:35,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 08:23:35,881 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 08:23:35,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-01-31 08:23:36,013 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-31 08:23:36,014 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-31 08:23:36,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-31 08:23:36,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 08:23:36,189 INFO L134 CoverageAnalysis]: Checked inductivity of 2363 backedges. 844 proven. 196 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2022-01-31 08:23:36,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 08:23:36,459 INFO L134 CoverageAnalysis]: Checked inductivity of 2363 backedges. 0 proven. 1044 refuted. 0 times theorem prover too weak. 1319 trivial. 0 not checked. [2022-01-31 08:23:36,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582385383] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 08:23:36,459 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 08:23:36,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 17] total 23 [2022-01-31 08:23:36,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438940297] [2022-01-31 08:23:36,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 08:23:36,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-31 08:23:36,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 08:23:36,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-31 08:23:36,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=273, Unknown=0, NotChecked=0, Total=506 [2022-01-31 08:23:36,461 INFO L87 Difference]: Start difference. First operand 111 states and 115 transitions. Second operand has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 22 states have internal predecessors, (70), 2 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-01-31 08:23:36,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 08:23:36,740 INFO L93 Difference]: Finished difference Result 123 states and 127 transitions. [2022-01-31 08:23:36,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-31 08:23:36,740 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 22 states have internal predecessors, (70), 2 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 176 [2022-01-31 08:23:36,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 08:23:36,741 INFO L225 Difference]: With dead ends: 123 [2022-01-31 08:23:36,741 INFO L226 Difference]: Without dead ends: 123 [2022-01-31 08:23:36,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 354 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=693, Invalid=1113, Unknown=0, NotChecked=0, Total=1806 [2022-01-31 08:23:36,742 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 58 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 08:23:36,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 57 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 08:23:36,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-01-31 08:23:36,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2022-01-31 08:23:36,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 115 states have (on average 1.0260869565217392) internal successors, (118), 115 states have internal predecessors, (118), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 08:23:36,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 127 transitions. [2022-01-31 08:23:36,745 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 127 transitions. Word has length 176 [2022-01-31 08:23:36,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 08:23:36,745 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 127 transitions. [2022-01-31 08:23:36,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 22 states have internal predecessors, (70), 2 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-01-31 08:23:36,746 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 127 transitions. [2022-01-31 08:23:36,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-01-31 08:23:36,747 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 08:23:36,747 INFO L514 BasicCegarLoop]: trace histogram [60, 60, 20, 20, 10, 10, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 08:23:36,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-01-31 08:23:36,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-01-31 08:23:36,959 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 08:23:36,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 08:23:36,960 INFO L85 PathProgramCache]: Analyzing trace with hash -2117032296, now seen corresponding path program 9 times [2022-01-31 08:23:36,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 08:23:36,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019427182] [2022-01-31 08:23:36,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 08:23:36,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 08:23:36,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:37,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 08:23:37,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:37,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 08:23:37,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:37,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-01-31 08:23:37,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:37,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-01-31 08:23:37,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:23:37,104 INFO L134 CoverageAnalysis]: Checked inductivity of 4235 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 4135 trivial. 0 not checked. [2022-01-31 08:23:37,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 08:23:37,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019427182] [2022-01-31 08:23:37,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019427182] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 08:23:37,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076729404] [2022-01-31 08:23:37,105 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-31 08:23:37,105 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 08:23:37,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 08:23:37,106 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 08:23:37,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-01-31 08:23:38,141 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-01-31 08:23:38,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-31 08:23:38,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 21 conjunts are in the unsatisfiable core [2022-01-31 08:23:38,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 08:23:38,388 INFO L134 CoverageAnalysis]: Checked inductivity of 4235 backedges. 1690 proven. 100 refuted. 0 times theorem prover too weak. 2445 trivial. 0 not checked. [2022-01-31 08:23:38,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 08:23:38,741 INFO L134 CoverageAnalysis]: Checked inductivity of 4235 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 4135 trivial. 0 not checked. [2022-01-31 08:23:38,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076729404] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 08:23:38,742 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 08:23:38,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 23 [2022-01-31 08:23:38,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870192604] [2022-01-31 08:23:38,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 08:23:38,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-31 08:23:38,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 08:23:38,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-31 08:23:38,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=273, Unknown=0, NotChecked=0, Total=506 [2022-01-31 08:23:38,743 INFO L87 Difference]: Start difference. First operand 123 states and 127 transitions. Second operand has 23 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 22 states have internal predecessors, (67), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-31 08:23:39,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 08:23:39,021 INFO L93 Difference]: Finished difference Result 141 states and 145 transitions. [2022-01-31 08:23:39,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-31 08:23:39,022 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 22 states have internal predecessors, (67), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 212 [2022-01-31 08:23:39,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 08:23:39,023 INFO L225 Difference]: With dead ends: 141 [2022-01-31 08:23:39,023 INFO L226 Difference]: Without dead ends: 141 [2022-01-31 08:23:39,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 422 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=652, Invalid=1070, Unknown=0, NotChecked=0, Total=1722 [2022-01-31 08:23:39,024 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 56 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 08:23:39,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 62 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 08:23:39,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-01-31 08:23:39,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2022-01-31 08:23:39,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 133 states have (on average 1.0225563909774436) internal successors, (136), 133 states have internal predecessors, (136), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 08:23:39,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 145 transitions. [2022-01-31 08:23:39,027 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 145 transitions. Word has length 212 [2022-01-31 08:23:39,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 08:23:39,027 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 145 transitions. [2022-01-31 08:23:39,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 22 states have internal predecessors, (67), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-31 08:23:39,027 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 145 transitions. [2022-01-31 08:23:39,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-01-31 08:23:39,028 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 08:23:39,029 INFO L514 BasicCegarLoop]: trace histogram [60, 60, 20, 20, 19, 19, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 08:23:39,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-01-31 08:23:39,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-01-31 08:23:39,244 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 08:23:39,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 08:23:39,245 INFO L85 PathProgramCache]: Analyzing trace with hash 2090469341, now seen corresponding path program 10 times [2022-01-31 08:23:39,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 08:23:39,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868714253] [2022-01-31 08:23:39,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 08:23:39,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 08:23:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:24:24,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 08:24:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:24:24,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 08:24:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:24:36,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-01-31 08:24:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:24:47,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-01-31 08:24:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 08:25:02,005 INFO L134 CoverageAnalysis]: Checked inductivity of 4496 backedges. 5 proven. 4442 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-01-31 08:25:02,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 08:25:02,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868714253] [2022-01-31 08:25:02,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868714253] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 08:25:02,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029007222] [2022-01-31 08:25:02,006 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-31 08:25:02,006 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 08:25:02,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 08:25:02,007 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 08:25:02,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-01-31 08:25:02,582 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-31 08:25:02,582 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-31 08:25:02,598 WARN L261 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 460 conjunts are in the unsatisfiable core [2022-01-31 08:25:02,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 08:29:19,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 08:29:19,461 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-31 08:29:19,463 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 20 select indices, 20 select index equivalence classes, 190 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 9524 treesize of output 2649 [2022-01-31 08:30:27,765 WARN L860 $PredicateComparison]: unable to prove that (exists ((avg_~i~0 Int)) (and (or (exists ((aux_div_aux_mod_v_main_~ret~1_BEFORE_CALL_1_59_138 Int) (aux_div_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_59_138_166 Int) (|v_main_~#x~0.base_BEFORE_CALL_1| Int) (aux_div_aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_59_138_166_962 Int) (aux_mod_aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_59_138_166_962 Int) (aux_div_v_main_~ret~1_BEFORE_CALL_1_59 Int)) (let ((.cse25 (* 4 avg_~i~0)) (.cse24 (select |c_#memory_int| |v_main_~#x~0.base_BEFORE_CALL_1|))) (let ((.cse6 (select .cse24 8)) (.cse18 (select .cse24 40)) (.cse19 (select .cse24 (+ .cse25 (- 8)))) (.cse21 (select .cse24 24)) (.cse13 (select .cse24 16)) (.cse23 (select .cse24 (+ (- 20) .cse25))) (.cse22 (select .cse24 44)) (.cse7 (select .cse24 20)) (.cse9 (select .cse24 (+ (- 28) .cse25))) (.cse10 (select .cse24 (+ (- 16) .cse25))) (.cse4 (select .cse24 .cse25)) (.cse15 (select .cse24 32)) (.cse20 (select .cse24 4)) (.cse17 (select .cse24 (+ .cse25 (- 12)))) (.cse14 (select .cse24 (+ .cse25 (- 4)))) (.cse11 (select .cse24 (+ .cse25 (- 24)))) (.cse8 (select .cse24 12)) (.cse16 (select .cse24 36)) (.cse12 (select .cse24 28)) (.cse5 (select .cse24 0))) (let ((.cse0 (div (+ (* (- 1) .cse6) (* (- 1) .cse18) (* (- 1) .cse19) (* (- 1) .cse21) 19 (* (- 1) .cse13) (* (- 1) .cse23) (* (- 1) .cse22) (* (- 1) .cse7) (* (- 1) .cse9) (* (- 1) .cse10) (* .cse4 (- 1)) (* (- 1) .cse15) (* (- 1) .cse20) (* (- 1) .cse17) (* (- 1) .cse14) (* (- 1) .cse11) (* (- 1) .cse8) (* (- 1) .cse16) (* (- 1) .cse12) (* (- 1) .cse5)) (- 20)))) (let ((.cse2 (+ aux_mod_aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_59_138_166_962 .cse0)) (.cse1 (* 4294967296 aux_div_aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_59_138_166_962)) (.cse3 (div (+ .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 (* (- 20) .cse0) .cse16 .cse17 .cse18 .cse19 (* 85899345920 aux_div_aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_59_138_166_962) (* (- 20) aux_mod_aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_59_138_166_962) .cse20 .cse21 .cse22 .cse23) 85899345920))) (and (<= (+ (* 4294967296 aux_div_aux_mod_v_main_~ret~1_BEFORE_CALL_1_59_138) aux_mod_aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_59_138_166_962 .cse0) (+ 4294967294 .cse1)) (<= (+ 2147483647 .cse1) (+ aux_mod_aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_59_138_166_962 .cse0 (* aux_div_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_59_138_166 4294967296))) (<= (+ (* aux_div_v_main_~ret~1_BEFORE_CALL_1_59 4294967296) .cse1 2147483648) .cse2) (<= 0 aux_mod_aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_59_138_166_962) (<= .cse1 .cse2) (< (div (+ 4294967295 (* (- 1) .cse0)) (- 4294967296)) (+ .cse3 aux_div_v_main_~ret~1_BEFORE_CALL_1_59 1)) (<= .cse2 (+ .cse1 6442450943)) (<= 0 (+ .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23)) (< (+ aux_div_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_59_138_166 aux_div_aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_59_138_166_962) (+ .cse3 aux_div_aux_mod_v_main_~ret~1_BEFORE_CALL_1_59_138 1)))))))) (exists ((|v_main_~#x~0.base_BEFORE_CALL_1| Int) (aux_div_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_639_721_164 Int) (aux_div_aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_639_721_164_974 Int) (aux_div_v_main_~ret~1_BEFORE_CALL_1_639 Int)) (let ((.cse50 (* 4 avg_~i~0)) (.cse49 (select |c_#memory_int| |v_main_~#x~0.base_BEFORE_CALL_1|))) (let ((.cse28 (select .cse49 8)) (.cse40 (select .cse49 40)) (.cse41 (select .cse49 (+ .cse50 (- 8)))) (.cse43 (select .cse49 24)) (.cse35 (select .cse49 16)) (.cse45 (select .cse49 (+ (- 20) .cse50))) (.cse44 (select .cse49 44)) (.cse29 (select .cse49 20)) (.cse31 (select .cse49 (+ (- 28) .cse50))) (.cse32 (select .cse49 (+ (- 16) .cse50))) (.cse26 (select .cse49 .cse50)) (.cse37 (select .cse49 32)) (.cse42 (select .cse49 4)) (.cse39 (select .cse49 (+ .cse50 (- 12)))) (.cse36 (select .cse49 (+ .cse50 (- 4)))) (.cse33 (select .cse49 (+ .cse50 (- 24)))) (.cse30 (select .cse49 12)) (.cse38 (select .cse49 36)) (.cse34 (select .cse49 28)) (.cse27 (select .cse49 0))) (let ((.cse46 (div (+ (* (- 1) .cse28) (* (- 1) .cse40) (* (- 1) .cse41) (* (- 1) .cse43) 19 (* (- 1) .cse35) (* (- 1) .cse45) (* (- 1) .cse44) (* (- 1) .cse29) (* (- 1) .cse31) (* (- 1) .cse32) (* .cse26 (- 1)) (* (- 1) .cse37) (* (- 1) .cse42) (* (- 1) .cse39) (* (- 1) .cse36) (* (- 1) .cse33) (* (- 1) .cse30) (* (- 1) .cse38) (* (- 1) .cse34) (* (- 1) .cse27)) (- 20))) (.cse47 (* 4294967296 aux_div_aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_639_721_164_974)) (.cse48 (div (+ .cse26 .cse27 .cse28 .cse29 .cse30 .cse31 .cse32 .cse33 .cse34 .cse35 .cse36 .cse37 .cse38 .cse39 .cse40 .cse41 (- 85899345901) .cse42 .cse43 .cse44 .cse45) 20))) (and (< (+ .cse26 .cse27 .cse28 .cse29 .cse30 .cse31 .cse32 .cse33 .cse34 .cse35 .cse36 .cse37 .cse38 .cse39 .cse40 .cse41 .cse42 .cse43 .cse44 .cse45) 0) (<= .cse46 (+ 6442450942 .cse47)) (< (+ (div (+ 2147483647 (* (- 1) .cse46)) (- 4294967296)) aux_div_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_639_721_164) (+ aux_div_v_main_~ret~1_BEFORE_CALL_1_639 1)) (<= (+ .cse46 (* aux_div_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_639_721_164 4294967296)) (+ 4294967294 .cse47)) (< aux_div_aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_639_721_164_974 (+ (div (+ .cse48 2147483648) 4294967296) aux_div_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_639_721_164 1)) (<= (* 4294967296 aux_div_v_main_~ret~1_BEFORE_CALL_1_639) (+ .cse48 4294967296))))))) (exists ((aux_div_v_main_~ret~1_BEFORE_CALL_1_623 Int) (|v_main_~#x~0.base_BEFORE_CALL_1| Int) (aux_mod_v_main_~ret~1_BEFORE_CALL_1_623 Int)) (let ((.cse74 (select |c_#memory_int| |v_main_~#x~0.base_BEFORE_CALL_1|)) (.cse75 (* 4 avg_~i~0))) (let ((.cse63 (select .cse74 .cse75)) (.cse72 (select .cse74 0)) (.cse53 (select .cse74 8)) (.cse60 (select .cse74 20)) (.cse69 (select .cse74 12)) (.cse61 (select .cse74 (+ (- 28) .cse75))) (.cse62 (select .cse74 (+ (- 16) .cse75))) (.cse68 (select .cse74 (+ .cse75 (- 24)))) (.cse71 (select .cse74 28)) (.cse57 (select .cse74 16)) (.cse67 (select .cse74 (+ .cse75 (- 4)))) (.cse64 (select .cse74 32)) (.cse70 (select .cse74 36)) (.cse66 (select .cse74 (+ .cse75 (- 12)))) (.cse54 (select .cse74 40)) (.cse55 (select .cse74 (+ .cse75 (- 8)))) (.cse65 (select .cse74 4)) (.cse56 (select .cse74 24)) (.cse59 (select .cse74 44)) (.cse58 (select .cse74 (+ (- 20) .cse75)))) (let ((.cse73 (+ .cse63 .cse72 .cse53 .cse60 .cse69 .cse61 .cse62 .cse68 .cse71 .cse57 .cse67 .cse64 .cse70 .cse66 .cse54 .cse55 .cse65 .cse56 .cse59 .cse58))) (let ((.cse52 (* 4294967296 aux_div_v_main_~ret~1_BEFORE_CALL_1_623)) (.cse51 (div .cse73 20))) (and (<= .cse51 (+ aux_mod_v_main_~ret~1_BEFORE_CALL_1_623 .cse52 2147483647)) (<= 0 aux_mod_v_main_~ret~1_BEFORE_CALL_1_623) (< (div (+ (* (- 85899345920) aux_div_v_main_~ret~1_BEFORE_CALL_1_623) (* (- 1) .cse53) (* (- 1) .cse54) (* (- 1) .cse55) (* (- 1) .cse56) 19 (* (- 1) .cse57) (* (- 1) .cse58) (* (- 1) .cse59) (* (- 1) .cse60) (* 20 .cse51) (* (- 1) .cse61) (* (- 1) .cse62) (* .cse63 (- 1)) (* (- 1) .cse64) (* (- 1) .cse65) (* (- 1) .cse66) (* (- 1) .cse67) (* (- 1) .cse68) (* (- 1) .cse69) (* (- 1) .cse70) (* (- 1) .cse71) (* (- 20) aux_mod_v_main_~ret~1_BEFORE_CALL_1_623) (* (- 1) .cse72)) (- 85899345920)) (+ aux_div_v_main_~ret~1_BEFORE_CALL_1_623 1)) (<= 0 .cse73) (<= (+ aux_mod_v_main_~ret~1_BEFORE_CALL_1_623 .cse52) .cse51))))))) (exists ((|v_main_~#x~0.base_BEFORE_CALL_1| Int) (aux_div_v_main_~ret~1_BEFORE_CALL_1_837 Int) (aux_div_aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_837_925_723_748 Int) (aux_div_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_837_925_723 Int) (aux_div_aux_mod_v_main_~ret~1_BEFORE_CALL_1_837_925 Int)) (let ((.cse100 (select |c_#memory_int| |v_main_~#x~0.base_BEFORE_CALL_1|)) (.cse101 (* 4 avg_~i~0))) (let ((.cse79 (select .cse100 .cse101)) (.cse80 (select .cse100 0)) (.cse81 (select .cse100 8)) (.cse82 (select .cse100 20)) (.cse83 (select .cse100 12)) (.cse84 (select .cse100 (+ (- 28) .cse101))) (.cse85 (select .cse100 (+ (- 16) .cse101))) (.cse86 (select .cse100 (+ .cse101 (- 24)))) (.cse87 (select .cse100 28)) (.cse88 (select .cse100 16)) (.cse89 (select .cse100 (+ .cse101 (- 4)))) (.cse90 (select .cse100 32)) (.cse91 (select .cse100 36)) (.cse92 (select .cse100 (+ .cse101 (- 12)))) (.cse93 (select .cse100 40)) (.cse94 (select .cse100 (+ .cse101 (- 8)))) (.cse95 (select .cse100 4)) (.cse96 (select .cse100 24)) (.cse97 (select .cse100 44)) (.cse98 (select .cse100 (+ (- 20) .cse101)))) (let ((.cse77 (+ .cse79 .cse80 .cse81 .cse82 .cse83 .cse84 .cse85 .cse86 .cse87 .cse88 .cse89 .cse90 .cse91 .cse92 .cse93 .cse94 .cse95 .cse96 .cse97 .cse98))) (let ((.cse99 (* 4294967296 aux_div_v_main_~ret~1_BEFORE_CALL_1_837)) (.cse78 (div (+ (* (- 1) .cse81) (* (- 1) .cse93) (- 1) (* (- 1) .cse94) (* (- 1) .cse96) (* (- 1) .cse88) (* (- 1) .cse98) (* (- 1) .cse97) (* (- 1) .cse82) (* (- 1) .cse84) (* (- 1) .cse85) (* .cse79 (- 1)) (* (- 1) .cse90) (* (- 1) .cse95) (* (- 1) .cse92) (* (- 1) .cse89) (* (- 1) .cse86) (* (- 1) .cse83) (* (- 1) .cse91) (* (- 1) .cse87) (* (- 1) .cse80)) (- 20))) (.cse76 (div .cse77 20))) (and (<= (* aux_div_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_837_925_723 4294967296) (+ .cse76 1)) (< .cse77 0) (< .cse78 (+ (div (+ .cse79 .cse80 19 .cse81 .cse82 .cse83 .cse84 .cse85 .cse86 .cse87 .cse88 .cse89 .cse90 .cse91 .cse92 .cse93 .cse94 .cse95 .cse96 .cse97 .cse98) 20) 1)) (< .cse99 (+ (* aux_div_aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_837_925_723_748 4294967296) 4294967296 .cse78)) (<= .cse78 (+ .cse99 4294967296 (* 4294967296 aux_div_aux_mod_v_main_~ret~1_BEFORE_CALL_1_837_925))) (<= .cse78 (+ .cse99 2147483647)) (< (+ aux_div_aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_837_925_723_748 (div (+ 2147483647 (* (- 1) .cse78)) (- 4294967296))) (+ aux_div_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_837_925_723 1)) (< (+ aux_div_v_main_~ret~1_BEFORE_CALL_1_837 aux_div_aux_mod_v_main_~ret~1_BEFORE_CALL_1_837_925) (+ (div (+ (- 2147483648) .cse76) 4294967296) 1)))))))) (exists ((aux_div_v_main_~ret~1_BEFORE_CALL_1_73 Int) (|v_main_~#x~0.base_BEFORE_CALL_1| Int) (aux_div_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_73_142_156 Int) (aux_div_aux_mod_v_main_~ret~1_BEFORE_CALL_1_73_142 Int) (aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_73_142_156 Int)) (let ((.cse123 (select |c_#memory_int| |v_main_~#x~0.base_BEFORE_CALL_1|)) (.cse124 (* 4 avg_~i~0))) (let ((.cse113 (select .cse123 .cse124)) (.cse122 (select .cse123 0)) (.cse103 (select .cse123 8)) (.cse110 (select .cse123 20)) (.cse119 (select .cse123 12)) (.cse111 (select .cse123 (+ (- 28) .cse124))) (.cse112 (select .cse123 (+ (- 16) .cse124))) (.cse118 (select .cse123 (+ .cse124 (- 24)))) (.cse121 (select .cse123 28)) (.cse107 (select .cse123 16)) (.cse117 (select .cse123 (+ .cse124 (- 4)))) (.cse114 (select .cse123 32)) (.cse120 (select .cse123 36)) (.cse116 (select .cse123 (+ .cse124 (- 12)))) (.cse104 (select .cse123 40)) (.cse105 (select .cse123 (+ .cse124 (- 8)))) (.cse115 (select .cse123 4)) (.cse106 (select .cse123 24)) (.cse109 (select .cse123 44)) (.cse108 (select .cse123 (+ (- 20) .cse124))) (.cse102 (* 4294967296 aux_div_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_73_142_156))) (and (<= (+ .cse102 aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_73_142_156) 4294967295) (<= (+ .cse102 2 aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_73_142_156 (* aux_div_v_main_~ret~1_BEFORE_CALL_1_73 4294967296)) 0) (< (+ (div (+ 4294967295 (* (- 1) (div (+ (* (- 1) .cse103) (* (- 1) .cse104) (* (- 1) .cse105) (* (- 1) .cse106) 19 (* (- 1) .cse107) (* (- 1) .cse108) (* (- 1) .cse109) (* (- 1) .cse110) (* (- 1) .cse111) (* (- 1) .cse112) (* .cse113 (- 1)) (* (- 1) .cse114) (* (- 1) .cse115) (* (- 1) .cse116) (* (- 1) .cse117) (* (- 1) .cse118) (* (- 1) .cse119) (* (- 1) .cse120) (* (- 1) .cse121) (* (- 1) .cse122)) (- 20)))) (- 4294967296)) aux_div_aux_mod_v_main_~ret~1_BEFORE_CALL_1_73_142) (+ aux_div_v_main_~ret~1_BEFORE_CALL_1_73 (div (+ .cse113 .cse122 (- 42949672960) .cse103 .cse110 .cse119 .cse111 .cse112 (* (- 85899345920) aux_div_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_73_142_156) .cse118 .cse121 .cse107 .cse117 .cse114 .cse120 .cse116 .cse104 .cse105 .cse115 .cse106 .cse109 (* (- 20) aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_73_142_156) .cse108) 85899345920) aux_div_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_73_142_156 1)) (<= 0 (+ .cse102 aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_73_142_156 2147483648)) (<= 0 (+ .cse113 .cse122 .cse103 .cse110 .cse119 .cse111 .cse112 .cse118 .cse121 .cse107 .cse117 .cse114 .cse120 .cse116 .cse104 .cse105 .cse115 .cse106 .cse109 .cse108)) (<= 0 (+ 2147483649 .cse102 (* 4294967296 aux_div_aux_mod_v_main_~ret~1_BEFORE_CALL_1_73_142) aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_73_142_156)) (<= 0 aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_73_142_156))))) (exists ((aux_div_v_main_~ret~1_BEFORE_CALL_1_623 Int) (|v_main_~#x~0.base_BEFORE_CALL_1| Int) (aux_div_aux_mod_v_main_~ret~1_BEFORE_CALL_1_623_1393 Int)) (let ((.cse150 (* 4 avg_~i~0)) (.cse149 (select |c_#memory_int| |v_main_~#x~0.base_BEFORE_CALL_1|))) (let ((.cse131 (select .cse149 8)) (.cse143 (select .cse149 40)) (.cse144 (select .cse149 (+ .cse150 (- 8)))) (.cse146 (select .cse149 24)) (.cse138 (select .cse149 16)) (.cse148 (select .cse149 (+ (- 20) .cse150))) (.cse147 (select .cse149 44)) (.cse132 (select .cse149 20)) (.cse134 (select .cse149 (+ (- 28) .cse150))) (.cse135 (select .cse149 (+ (- 16) .cse150))) (.cse129 (select .cse149 .cse150)) (.cse140 (select .cse149 32)) (.cse145 (select .cse149 4)) (.cse142 (select .cse149 (+ .cse150 (- 12)))) (.cse139 (select .cse149 (+ .cse150 (- 4)))) (.cse136 (select .cse149 (+ .cse150 (- 24)))) (.cse133 (select .cse149 12)) (.cse141 (select .cse149 36)) (.cse137 (select .cse149 28)) (.cse130 (select .cse149 0))) (let ((.cse125 (* 4294967296 aux_div_v_main_~ret~1_BEFORE_CALL_1_623)) (.cse127 (div (+ (* (- 1) .cse131) (* (- 1) .cse143) (* (- 1) .cse144) (* (- 1) .cse146) (* (- 1) .cse138) (* (- 1) .cse148) (* (- 1) .cse147) (* (- 1) .cse132) (* (- 1) .cse134) (* (- 1) .cse135) (* .cse129 (- 1)) (* (- 1) .cse140) (* (- 1) .cse145) (* (- 1) .cse142) (* (- 1) .cse139) (* (- 1) .cse136) (* (- 1) .cse133) (* (- 1) .cse141) (* (- 1) .cse137) (* (- 1) .cse130)) (- 20))) (.cse128 (* aux_div_aux_mod_v_main_~ret~1_BEFORE_CALL_1_623_1393 4294967296)) (.cse126 (div (+ .cse129 .cse130 .cse131 .cse132 .cse133 .cse134 .cse135 .cse136 .cse137 .cse138 .cse139 .cse140 .cse141 .cse142 .cse143 .cse144 .cse145 .cse146 .cse147 .cse148) 20))) (and (<= .cse125 .cse126) (<= .cse127 (+ 2147483647 .cse128)) (<= (+ .cse125 .cse127) (+ .cse128 .cse126)) (< aux_div_aux_mod_v_main_~ret~1_BEFORE_CALL_1_623_1393 (+ aux_div_v_main_~ret~1_BEFORE_CALL_1_623 1))))))) (exists ((aux_div_aux_mod_v_main_~ret~1_BEFORE_CALL_1_64_924 Int) (|v_main_~#x~0.base_BEFORE_CALL_1| Int) (aux_div_v_main_~ret~1_BEFORE_CALL_1_64 Int) (aux_div_aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_64_924_1437_769 Int) (aux_div_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_64_924_1437 Int)) (let ((.cse178 (* 4 avg_~i~0)) (.cse177 (select |c_#memory_int| |v_main_~#x~0.base_BEFORE_CALL_1|))) (let ((.cse154 (select .cse177 8)) (.cse166 (select .cse177 40)) (.cse167 (select .cse177 (+ .cse178 (- 8)))) (.cse169 (select .cse177 24)) (.cse161 (select .cse177 16)) (.cse171 (select .cse177 (+ (- 20) .cse178))) (.cse170 (select .cse177 44)) (.cse155 (select .cse177 20)) (.cse157 (select .cse177 (+ (- 28) .cse178))) (.cse158 (select .cse177 (+ (- 16) .cse178))) (.cse152 (select .cse177 .cse178)) (.cse163 (select .cse177 32)) (.cse168 (select .cse177 4)) (.cse165 (select .cse177 (+ .cse178 (- 12)))) (.cse162 (select .cse177 (+ .cse178 (- 4)))) (.cse159 (select .cse177 (+ .cse178 (- 24)))) (.cse156 (select .cse177 12)) (.cse164 (select .cse177 36)) (.cse160 (select .cse177 28)) (.cse153 (select .cse177 0))) (let ((.cse151 (* aux_div_v_main_~ret~1_BEFORE_CALL_1_64 4294967296)) (.cse174 (* aux_div_aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_64_924_1437_769 4294967296)) (.cse172 (div (+ (* (- 1) .cse154) (* (- 1) .cse166) (* (- 1) .cse167) (* (- 1) .cse169) 19 (* (- 1) .cse161) (* (- 1) .cse171) (* (- 1) .cse170) (* (- 1) .cse155) (* (- 1) .cse157) (* (- 1) .cse158) (* .cse152 (- 1)) (* (- 1) .cse163) (* (- 1) .cse168) (* (- 1) .cse165) (* (- 1) .cse162) (* (- 1) .cse159) (* (- 1) .cse156) (* (- 1) .cse164) (* (- 1) .cse160) (* (- 1) .cse153)) (- 20))) (.cse175 (* aux_div_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_64_924_1437 4294967296)) (.cse173 (* 4294967296 aux_div_aux_mod_v_main_~ret~1_BEFORE_CALL_1_64_924)) (.cse176 (div (+ .cse152 .cse153 .cse154 .cse155 .cse156 .cse157 .cse158 .cse159 .cse160 .cse161 .cse162 .cse163 .cse164 .cse165 .cse166 .cse167 (- 85899345901) .cse168 .cse169 .cse170 .cse171) 20))) (and (<= .cse151 4294967295) (< (+ .cse152 .cse153 .cse154 .cse155 .cse156 .cse157 .cse158 .cse159 .cse160 .cse161 .cse162 .cse163 .cse164 .cse165 .cse166 .cse167 .cse168 .cse169 .cse170 .cse171) 0) (<= (+ .cse151 .cse172) (+ .cse173 4294967294)) (<= .cse174 4294967294) (<= (+ .cse174 .cse175) (+ 2147483647 .cse176)) (< aux_div_aux_mod_v_main_~ret~1_BEFORE_CALL_1_64_924 (+ (div (+ .cse176 2147483648) 4294967296) aux_div_v_main_~ret~1_BEFORE_CALL_1_64 1)) (< (div (+ 4294967295 (* (- 1) .cse172)) (- 4294967296)) (+ aux_div_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_64_924_1437 aux_div_aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_64_924_1437_769 1)) (<= (+ .cse172 .cse175) (+ .cse173 .cse176 4294967295))))))) (exists ((aux_div_aux_mod_v_main_~ret~1_BEFORE_CALL_1_843_1413 Int) (aux_div_v_main_~ret~1_BEFORE_CALL_1_843 Int) (|v_main_~#x~0.base_BEFORE_CALL_1| Int) (aux_div_aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_843_1413_141_771 Int) (aux_div_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_843_1413_141 Int)) (let ((.cse204 (* 4 avg_~i~0)) (.cse203 (select |c_#memory_int| |v_main_~#x~0.base_BEFORE_CALL_1|))) (let ((.cse185 (select .cse203 8)) (.cse197 (select .cse203 40)) (.cse198 (select .cse203 (+ .cse204 (- 8)))) (.cse200 (select .cse203 24)) (.cse192 (select .cse203 16)) (.cse202 (select .cse203 (+ (- 20) .cse204))) (.cse201 (select .cse203 44)) (.cse186 (select .cse203 20)) (.cse188 (select .cse203 (+ (- 28) .cse204))) (.cse189 (select .cse203 (+ (- 16) .cse204))) (.cse183 (select .cse203 .cse204)) (.cse194 (select .cse203 32)) (.cse199 (select .cse203 4)) (.cse196 (select .cse203 (+ .cse204 (- 12)))) (.cse193 (select .cse203 (+ .cse204 (- 4)))) (.cse190 (select .cse203 (+ .cse204 (- 24)))) (.cse187 (select .cse203 12)) (.cse195 (select .cse203 36)) (.cse191 (select .cse203 28)) (.cse184 (select .cse203 0))) (let ((.cse180 (* aux_div_aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_843_1413_141_771 4294967296)) (.cse179 (div (+ (* (- 1) .cse185) (* (- 1) .cse197) (* (- 1) .cse198) (* (- 1) .cse200) 85899345920 (* (- 1) .cse192) (* (- 1) .cse202) (* (- 1) .cse201) (* (- 1) .cse186) (* (- 1) .cse188) (* (- 1) .cse189) (* .cse183 (- 1)) (* (- 1) .cse194) (* (- 1) .cse199) (* (- 1) .cse196) (* (- 1) .cse193) (* (- 1) .cse190) (* (- 1) .cse187) (* (- 1) .cse195) (* (- 1) .cse191) (* (- 1) .cse184)) (- 20))) (.cse181 (* aux_div_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_843_1413_141 4294967296)) (.cse182 (div (+ .cse183 .cse184 .cse185 .cse186 .cse187 .cse188 .cse189 (- 85899345920) .cse190 .cse191 .cse192 .cse193 .cse194 .cse195 .cse196 .cse197 .cse198 .cse199 .cse200 .cse201 .cse202) 20))) (and (< (div (+ (- 1) (* (- 1) .cse179)) (- 4294967296)) (+ aux_div_aux_mod_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_843_1413_141_771 aux_div_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_843_1413_141 1)) (<= (+ .cse180 .cse181) (+ .cse182 2147483648)) (<= .cse180 4294967295) (<= (+ .cse179 .cse181) (+ .cse182 (* 4294967296 aux_div_v_main_~ret~1_BEFORE_CALL_1_843))) (< aux_div_v_main_~ret~1_BEFORE_CALL_1_843 (+ aux_div_aux_mod_v_main_~ret~1_BEFORE_CALL_1_843_1413 1)) (<= (* 4294967296 aux_div_aux_mod_v_main_~ret~1_BEFORE_CALL_1_843_1413) (+ .cse182 4294967296))))))) (exists ((|v_main_~#x~0.base_BEFORE_CALL_1| Int) (aux_div_v_main_~ret~1_BEFORE_CALL_1_837 Int) (aux_div_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_837_925_723 Int)) (let ((.cse228 (select |c_#memory_int| |v_main_~#x~0.base_BEFORE_CALL_1|)) (.cse229 (* 4 avg_~i~0))) (let ((.cse207 (select .cse228 .cse229)) (.cse208 (select .cse228 0)) (.cse209 (select .cse228 8)) (.cse210 (select .cse228 20)) (.cse211 (select .cse228 12)) (.cse212 (select .cse228 (+ (- 28) .cse229))) (.cse213 (select .cse228 (+ (- 16) .cse229))) (.cse214 (select .cse228 (+ .cse229 (- 24)))) (.cse215 (select .cse228 28)) (.cse216 (select .cse228 16)) (.cse217 (select .cse228 (+ .cse229 (- 4)))) (.cse218 (select .cse228 32)) (.cse219 (select .cse228 36)) (.cse220 (select .cse228 (+ .cse229 (- 12)))) (.cse221 (select .cse228 40)) (.cse222 (select .cse228 (+ .cse229 (- 8)))) (.cse223 (select .cse228 4)) (.cse224 (select .cse228 24)) (.cse225 (select .cse228 44)) (.cse226 (select .cse228 (+ (- 20) .cse229)))) (let ((.cse205 (+ .cse207 .cse208 .cse209 .cse210 .cse211 .cse212 .cse213 .cse214 .cse215 .cse216 .cse217 .cse218 .cse219 .cse220 .cse221 .cse222 .cse223 .cse224 .cse225 .cse226))) (let ((.cse206 (div (+ (* (- 1) .cse209) (* (- 1) .cse221) (- 1) (* (- 1) .cse222) (* (- 1) .cse224) (* (- 1) .cse216) (* (- 1) .cse226) (* (- 1) .cse225) (* (- 1) .cse210) (* (- 1) .cse212) (* (- 1) .cse213) (* .cse207 (- 1)) (* (- 1) .cse218) (* (- 1) .cse223) (* (- 1) .cse220) (* (- 1) .cse217) (* (- 1) .cse214) (* (- 1) .cse211) (* (- 1) .cse219) (* (- 1) .cse215) (* (- 1) .cse208)) (- 20))) (.cse227 (div .cse205 20))) (and (< .cse205 0) (< .cse206 (+ (div (+ .cse207 .cse208 19 .cse209 .cse210 .cse211 .cse212 .cse213 .cse214 .cse215 .cse216 .cse217 .cse218 .cse219 .cse220 .cse221 .cse222 .cse223 .cse224 .cse225 .cse226) 20) 1)) (< (div (+ 2147483647 (* (- 1) .cse206)) (- 4294967296)) (+ aux_div_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_837_925_723 1)) (<= (+ (* aux_div_aux_mod_aux_mod_v_main_~ret~1_BEFORE_CALL_1_837_925_723 4294967296) .cse206) (+ (* 4294967296 aux_div_v_main_~ret~1_BEFORE_CALL_1_837) .cse227 1)) (< aux_div_v_main_~ret~1_BEFORE_CALL_1_837 (+ (div .cse227 4294967296) 1))))))))) (<= 19 avg_~i~0) (<= avg_~i~0 19))) is different from true