/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/loop-acceleration/nested_1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 03:33:49,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 03:33:49,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 03:33:49,631 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-20 03:33:49,636 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 03:33:49,637 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 03:33:49,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 03:33:49,638 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 03:33:49,639 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 03:33:49,639 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 03:33:49,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 03:33:49,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 03:33:49,642 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 03:33:49,643 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 03:33:49,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 03:33:49,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 03:33:49,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 03:33:49,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-20 03:33:49,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 03:33:49,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 03:33:49,669 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 03:33:49,669 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-20 03:33:49,679 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 03:33:49,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 03:33:49,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 03:33:49,681 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 03:33:49,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 03:33:49,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 03:33:49,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 03:33:49,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 03:33:49,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 03:33:49,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 03:33:49,682 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 03:33:49,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 03:33:49,682 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 03:33:49,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 03:33:49,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 03:33:49,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 03:33:49,682 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 03:33:49,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 03:33:49,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 03:33:49,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 03:33:49,683 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 03:33:49,683 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 03:33:49,683 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 03:33:49,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 03:33:49,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 03:33:49,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 03:33:49,901 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 03:33:49,901 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 03:33:49,902 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/nested_1-2.c [2022-03-20 03:33:49,945 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35d1fa323/cec281973d474f3c8e028d12ecd58755/FLAGc916b4610 [2022-03-20 03:33:50,302 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 03:33:50,303 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/nested_1-2.c [2022-03-20 03:33:50,306 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35d1fa323/cec281973d474f3c8e028d12ecd58755/FLAGc916b4610 [2022-03-20 03:33:50,316 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35d1fa323/cec281973d474f3c8e028d12ecd58755 [2022-03-20 03:33:50,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 03:33:50,318 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 03:33:50,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 03:33:50,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 03:33:50,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 03:33:50,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 03:33:50" (1/1) ... [2022-03-20 03:33:50,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ace95a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:33:50, skipping insertion in model container [2022-03-20 03:33:50,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 03:33:50" (1/1) ... [2022-03-20 03:33:50,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 03:33:50,335 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 03:33:50,468 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/nested_1-2.c[322,335] [2022-03-20 03:33:50,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 03:33:50,483 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 03:33:50,493 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/nested_1-2.c[322,335] [2022-03-20 03:33:50,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 03:33:50,504 INFO L208 MainTranslator]: Completed translation [2022-03-20 03:33:50,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:33:50 WrapperNode [2022-03-20 03:33:50,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 03:33:50,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 03:33:50,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 03:33:50,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 03:33:50,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:33:50" (1/1) ... [2022-03-20 03:33:50,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:33:50" (1/1) ... [2022-03-20 03:33:50,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:33:50" (1/1) ... [2022-03-20 03:33:50,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:33:50" (1/1) ... [2022-03-20 03:33:50,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:33:50" (1/1) ... [2022-03-20 03:33:50,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:33:50" (1/1) ... [2022-03-20 03:33:50,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:33:50" (1/1) ... [2022-03-20 03:33:50,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 03:33:50,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 03:33:50,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 03:33:50,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 03:33:50,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:33:50" (1/1) ... [2022-03-20 03:33:50,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 03:33:50,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:33:50,560 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 03:33:50,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 03:33:50,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 03:33:50,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 03:33:50,589 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 03:33:50,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-20 03:33:50,590 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 03:33:50,590 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 03:33:50,590 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 03:33:50,590 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 03:33:50,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 03:33:50,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-20 03:33:50,590 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 03:33:50,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 03:33:50,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 03:33:50,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 03:33:50,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 03:33:50,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 03:33:50,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 03:33:50,641 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 03:33:50,643 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 03:33:50,724 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 03:33:50,728 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 03:33:50,728 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-03-20 03:33:50,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:33:50 BoogieIcfgContainer [2022-03-20 03:33:50,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 03:33:50,732 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 03:33:50,732 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 03:33:50,733 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 03:33:50,735 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:33:50" (1/1) ... [2022-03-20 03:33:50,753 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-03-20 03:33:50,995 INFO L89 elerationTransformer]: Jordan loop acceleration statistics: 1 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-03-20 03:33:50,995 INFO L91 elerationTransformer]: Accelerated Formula: (and (< (mod v_main_~y~0_5 4294967296) 10) (= v_main_~y~0_4 (+ v_main_~y~0_5 1))) InVars {main_~y~0=v_main_~y~0_5} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_~y~0=v_main_~y~0_4} AuxVars[] AssignedVars[main_#t~post4, main_~y~0] to Formula: (let ((.cse0 (mod v_main_~y~0_5 4294967296))) (or (and (= v_main_~y~0_4 v_main_~y~0_5) (<= 10 .cse0) (= |v_main_#t~post4_3| |v_main_#t~post4_1|)) (and (< v_main_~y~0_5 v_main_~y~0_4) (<= (div (+ (* (- 1) v_main_~y~0_4) 10) (- 4294967296)) (+ (div (+ v_main_~y~0_5 (- 4294967295)) 4294967296) 1)) (< .cse0 10)))) InVars {main_#t~post4=|v_main_#t~post4_3|, main_~y~0=v_main_~y~0_5} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_~y~0=v_main_~y~0_4} AuxVars[] AssignedVars[main_#t~post4, main_~y~0] [2022-03-20 03:33:51,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 03:33:51 BasicIcfg [2022-03-20 03:33:51,000 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 03:33:51,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 03:33:51,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 03:33:51,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 03:33:51,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 03:33:50" (1/4) ... [2022-03-20 03:33:51,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f65866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 03:33:51, skipping insertion in model container [2022-03-20 03:33:51,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:33:50" (2/4) ... [2022-03-20 03:33:51,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f65866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 03:33:51, skipping insertion in model container [2022-03-20 03:33:51,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:33:50" (3/4) ... [2022-03-20 03:33:51,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f65866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 03:33:51, skipping insertion in model container [2022-03-20 03:33:51,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 03:33:51" (4/4) ... [2022-03-20 03:33:51,006 INFO L111 eAbstractionObserver]: Analyzing ICFG nested_1-2.cJordan [2022-03-20 03:33:51,009 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-20 03:33:51,009 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 03:33:51,045 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 03:33:51,051 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-20 03:33:51,051 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 03:33:51,061 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 03:33:51,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-20 03:33:51,065 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:33:51,066 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:33:51,066 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:33:51,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:33:51,070 INFO L85 PathProgramCache]: Analyzing trace with hash -962721461, now seen corresponding path program 1 times [2022-03-20 03:33:51,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:33:51,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891472951] [2022-03-20 03:33:51,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:33:51,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:33:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:33:51,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:33:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:33:51,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:33:51,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:33:51,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891472951] [2022-03-20 03:33:51,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891472951] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:33:51,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:33:51,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-20 03:33:51,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268759552] [2022-03-20 03:33:51,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:33:51,210 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-20 03:33:51,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:33:51,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-20 03:33:51,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-20 03:33:51,234 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:33:51,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:33:51,265 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-03-20 03:33:51,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-20 03:33:51,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-03-20 03:33:51,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:33:51,273 INFO L225 Difference]: With dead ends: 20 [2022-03-20 03:33:51,273 INFO L226 Difference]: Without dead ends: 14 [2022-03-20 03:33:51,274 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-20 03:33:51,276 INFO L913 BasicCegarLoop]: 20 mSDtfsCounter, 12 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:33:51,277 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 23 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 03:33:51,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-03-20 03:33:51,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-03-20 03:33:51,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:33:51,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-03-20 03:33:51,301 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2022-03-20 03:33:51,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:33:51,302 INFO L478 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-03-20 03:33:51,302 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:33:51,302 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-03-20 03:33:51,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-20 03:33:51,302 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:33:51,302 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:33:51,303 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 03:33:51,303 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:33:51,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:33:51,304 INFO L85 PathProgramCache]: Analyzing trace with hash -961797940, now seen corresponding path program 1 times [2022-03-20 03:33:51,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:33:51,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883037595] [2022-03-20 03:33:51,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:33:51,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:33:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:33:51,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:33:51,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:33:51,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:33:51,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:33:51,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883037595] [2022-03-20 03:33:51,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883037595] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:33:51,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:33:51,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:33:51,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010399718] [2022-03-20 03:33:51,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:33:51,398 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:33:51,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:33:51,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:33:51,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:33:51,399 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:33:51,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:33:51,425 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2022-03-20 03:33:51,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:33:51,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-03-20 03:33:51,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:33:51,426 INFO L225 Difference]: With dead ends: 17 [2022-03-20 03:33:51,426 INFO L226 Difference]: Without dead ends: 17 [2022-03-20 03:33:51,428 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:33:51,429 INFO L913 BasicCegarLoop]: 13 mSDtfsCounter, 15 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:33:51,430 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 20 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 03:33:51,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-03-20 03:33:51,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-03-20 03:33:51,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:33:51,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-03-20 03:33:51,433 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 11 [2022-03-20 03:33:51,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:33:51,433 INFO L478 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-03-20 03:33:51,433 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:33:51,433 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-03-20 03:33:51,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-03-20 03:33:51,433 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:33:51,433 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:33:51,434 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 03:33:51,434 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:33:51,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:33:51,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1952633576, now seen corresponding path program 1 times [2022-03-20 03:33:51,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:33:51,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753409855] [2022-03-20 03:33:51,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:33:51,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:33:51,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:33:51,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:33:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:33:51,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:33:51,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:33:51,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753409855] [2022-03-20 03:33:51,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753409855] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:33:51,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:33:51,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:33:51,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545677905] [2022-03-20 03:33:51,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:33:51,473 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:33:51,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:33:51,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:33:51,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:33:51,473 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:33:51,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:33:51,496 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2022-03-20 03:33:51,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:33:51,498 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-03-20 03:33:51,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:33:51,499 INFO L225 Difference]: With dead ends: 16 [2022-03-20 03:33:51,499 INFO L226 Difference]: Without dead ends: 16 [2022-03-20 03:33:51,501 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:33:51,506 INFO L913 BasicCegarLoop]: 14 mSDtfsCounter, 10 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:33:51,507 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 21 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 03:33:51,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-03-20 03:33:51,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-03-20 03:33:51,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:33:51,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-03-20 03:33:51,512 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 14 [2022-03-20 03:33:51,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:33:51,512 INFO L478 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-03-20 03:33:51,512 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:33:51,512 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-03-20 03:33:51,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-03-20 03:33:51,513 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:33:51,513 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:33:51,513 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 03:33:51,513 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:33:51,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:33:51,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1982267804, now seen corresponding path program 1 times [2022-03-20 03:33:51,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:33:51,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271102103] [2022-03-20 03:33:51,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:33:51,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:33:51,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:33:51,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:33:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:33:51,647 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-20 03:33:51,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:33:51,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271102103] [2022-03-20 03:33:51,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271102103] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:33:51,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976325870] [2022-03-20 03:33:51,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:33:51,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:33:51,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:33:51,682 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 03:33:51,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 03:33:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:33:51,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjunts are in the unsatisfiable core [2022-03-20 03:33:51,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:33:51,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-20 03:33:51,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 03:33:51,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-20 03:33:51,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976325870] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 03:33:51,872 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 03:33:51,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2022-03-20 03:33:51,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923767521] [2022-03-20 03:33:51,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 03:33:51,873 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-20 03:33:51,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:33:51,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-20 03:33:51,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-03-20 03:33:51,874 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:33:51,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:33:51,960 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2022-03-20 03:33:51,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 03:33:51,960 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-03-20 03:33:51,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:33:51,962 INFO L225 Difference]: With dead ends: 28 [2022-03-20 03:33:51,962 INFO L226 Difference]: Without dead ends: 28 [2022-03-20 03:33:51,963 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2022-03-20 03:33:51,969 INFO L913 BasicCegarLoop]: 15 mSDtfsCounter, 33 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:33:51,970 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 37 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 03:33:51,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-03-20 03:33:51,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-03-20 03:33:51,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:33:51,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2022-03-20 03:33:51,975 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 15 [2022-03-20 03:33:51,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:33:51,976 INFO L478 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2022-03-20 03:33:51,976 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:33:51,976 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2022-03-20 03:33:51,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-20 03:33:51,977 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:33:51,977 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:33:52,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-20 03:33:52,178 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:33:52,178 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:33:52,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:33:52,179 INFO L85 PathProgramCache]: Analyzing trace with hash 417615660, now seen corresponding path program 2 times [2022-03-20 03:33:52,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:33:52,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67575844] [2022-03-20 03:33:52,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:33:52,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:33:52,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:33:52,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:33:52,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:33:52,365 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-20 03:33:52,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:33:52,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67575844] [2022-03-20 03:33:52,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67575844] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:33:52,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344408421] [2022-03-20 03:33:52,365 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-20 03:33:52,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:33:52,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:33:52,369 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) [2022-03-20 03:33:52,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-20 03:33:52,411 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-20 03:33:52,412 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 03:33:52,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 13 conjunts are in the unsatisfiable core [2022-03-20 03:33:52,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:33:52,591 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-20 03:33:52,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 03:33:52,697 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-03-20 03:33:52,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344408421] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 03:33:52,698 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 03:33:52,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 6] total 13 [2022-03-20 03:33:52,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137448627] [2022-03-20 03:33:52,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 03:33:52,698 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-20 03:33:52,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:33:52,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-20 03:33:52,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-03-20 03:33:52,699 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 11 states have internal predecessors, (38), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:33:52,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:33:52,881 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2022-03-20 03:33:52,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-20 03:33:52,881 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 11 states have internal predecessors, (38), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2022-03-20 03:33:52,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:33:52,882 INFO L225 Difference]: With dead ends: 42 [2022-03-20 03:33:52,882 INFO L226 Difference]: Without dead ends: 39 [2022-03-20 03:33:52,882 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2022-03-20 03:33:52,883 INFO L913 BasicCegarLoop]: 21 mSDtfsCounter, 47 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:33:52,883 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 48 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-20 03:33:52,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-03-20 03:33:52,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2022-03-20 03:33:52,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:33:52,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2022-03-20 03:33:52,886 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 27 [2022-03-20 03:33:52,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:33:52,886 INFO L478 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2022-03-20 03:33:52,886 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 11 states have internal predecessors, (38), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:33:52,886 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2022-03-20 03:33:52,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-20 03:33:52,886 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:33:52,886 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:33:52,922 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-20 03:33:53,099 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:33:53,100 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:33:53,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:33:53,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1919746876, now seen corresponding path program 3 times [2022-03-20 03:33:53,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:33:53,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761755136] [2022-03-20 03:33:53,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:33:53,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:33:53,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:33:53,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:33:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:33:53,202 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-20 03:33:53,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:33:53,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761755136] [2022-03-20 03:33:53,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761755136] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:33:53,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10529017] [2022-03-20 03:33:53,203 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-20 03:33:53,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:33:53,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:33:53,204 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) [2022-03-20 03:33:53,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-20 03:33:53,311 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-03-20 03:33:53,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 03:33:53,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 13 conjunts are in the unsatisfiable core [2022-03-20 03:33:53,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:33:53,420 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-20 03:33:53,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 03:33:53,548 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-20 03:33:53,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10529017] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 03:33:53,548 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 03:33:53,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 16 [2022-03-20 03:33:53,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641992418] [2022-03-20 03:33:53,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 03:33:53,549 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-20 03:33:53,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:33:53,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-20 03:33:53,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-03-20 03:33:53,550 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand has 16 states, 16 states have (on average 3.25) internal successors, (52), 15 states have internal predecessors, (52), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:33:54,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:33:54,304 INFO L93 Difference]: Finished difference Result 64 states and 77 transitions. [2022-03-20 03:33:54,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-20 03:33:54,305 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 15 states have internal predecessors, (52), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-03-20 03:33:54,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:33:54,308 INFO L225 Difference]: With dead ends: 64 [2022-03-20 03:33:54,308 INFO L226 Difference]: Without dead ends: 64 [2022-03-20 03:33:54,309 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=233, Invalid=523, Unknown=0, NotChecked=0, Total=756 [2022-03-20 03:33:54,310 INFO L913 BasicCegarLoop]: 23 mSDtfsCounter, 78 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 03:33:54,310 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 55 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 03:33:54,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-03-20 03:33:54,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-03-20 03:33:54,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 59 states have (on average 1.2372881355932204) internal successors, (73), 59 states have internal predecessors, (73), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:33:54,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 77 transitions. [2022-03-20 03:33:54,323 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 77 transitions. Word has length 31 [2022-03-20 03:33:54,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:33:54,323 INFO L478 AbstractCegarLoop]: Abstraction has 64 states and 77 transitions. [2022-03-20 03:33:54,323 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 15 states have internal predecessors, (52), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:33:54,323 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 77 transitions. [2022-03-20 03:33:54,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-20 03:33:54,326 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:33:54,326 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:33:54,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-20 03:33:54,531 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:33:54,532 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:33:54,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:33:54,532 INFO L85 PathProgramCache]: Analyzing trace with hash -429082236, now seen corresponding path program 4 times [2022-03-20 03:33:54,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:33:54,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883398146] [2022-03-20 03:33:54,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:33:54,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:33:54,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:33:54,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:33:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:33:54,771 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 481 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-03-20 03:33:54,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:33:54,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883398146] [2022-03-20 03:33:54,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883398146] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:33:54,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27254307] [2022-03-20 03:33:54,771 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-20 03:33:54,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:33:54,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:33:54,773 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) [2022-03-20 03:33:54,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-20 03:33:55,066 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-20 03:33:55,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 03:33:55,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 29 conjunts are in the unsatisfiable core [2022-03-20 03:33:55,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:33:55,296 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 481 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-03-20 03:33:55,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 03:33:55,729 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 481 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-03-20 03:33:55,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27254307] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 03:33:55,729 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 03:33:55,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 32 [2022-03-20 03:33:55,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170650349] [2022-03-20 03:33:55,730 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 03:33:55,730 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-03-20 03:33:55,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:33:55,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-03-20 03:33:55,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=707, Unknown=0, NotChecked=0, Total=992 [2022-03-20 03:33:55,732 INFO L87 Difference]: Start difference. First operand 64 states and 77 transitions. Second operand has 32 states, 32 states have (on average 3.625) internal successors, (116), 31 states have internal predecessors, (116), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:34:07,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:34:07,167 INFO L93 Difference]: Finished difference Result 128 states and 157 transitions. [2022-03-20 03:34:07,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-20 03:34:07,168 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 3.625) internal successors, (116), 31 states have internal predecessors, (116), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-03-20 03:34:07,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:34:07,169 INFO L225 Difference]: With dead ends: 128 [2022-03-20 03:34:07,169 INFO L226 Difference]: Without dead ends: 128 [2022-03-20 03:34:07,170 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 113 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=985, Invalid=2555, Unknown=0, NotChecked=0, Total=3540 [2022-03-20 03:34:07,171 INFO L913 BasicCegarLoop]: 39 mSDtfsCounter, 219 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:34:07,171 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 111 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-20 03:34:07,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-03-20 03:34:07,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2022-03-20 03:34:07,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 123 states have (on average 1.2439024390243902) internal successors, (153), 123 states have internal predecessors, (153), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:34:07,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 157 transitions. [2022-03-20 03:34:07,176 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 157 transitions. Word has length 63 [2022-03-20 03:34:07,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:34:07,177 INFO L478 AbstractCegarLoop]: Abstraction has 128 states and 157 transitions. [2022-03-20 03:34:07,177 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.625) internal successors, (116), 31 states have internal predecessors, (116), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:34:07,177 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 157 transitions. [2022-03-20 03:34:07,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-03-20 03:34:07,178 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:34:07,178 INFO L499 BasicCegarLoop]: trace histogram [29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:34:07,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-20 03:34:07,378 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:34:07,379 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:34:07,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:34:07,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1740059396, now seen corresponding path program 5 times [2022-03-20 03:34:07,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:34:07,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682662959] [2022-03-20 03:34:07,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:34:07,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:34:07,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:34:08,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:34:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:34:08,031 INFO L134 CoverageAnalysis]: Checked inductivity of 2494 backedges. 0 proven. 2465 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-03-20 03:34:08,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:34:08,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682662959] [2022-03-20 03:34:08,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682662959] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:34:08,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700169784] [2022-03-20 03:34:08,032 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-20 03:34:08,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:34:08,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:34:08,033 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) [2022-03-20 03:34:08,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-20 03:34:37,915 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 40 check-sat command(s) [2022-03-20 03:34:37,916 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 03:34:37,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 61 conjunts are in the unsatisfiable core [2022-03-20 03:34:37,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:34:38,385 INFO L134 CoverageAnalysis]: Checked inductivity of 2494 backedges. 0 proven. 2465 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-03-20 03:34:38,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 03:34:39,955 INFO L134 CoverageAnalysis]: Checked inductivity of 2494 backedges. 0 proven. 2465 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-03-20 03:34:39,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700169784] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 03:34:39,956 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 03:34:39,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 32, 32] total 64 [2022-03-20 03:34:39,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317741883] [2022-03-20 03:34:39,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 03:34:39,957 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-03-20 03:34:39,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:34:39,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-03-20 03:34:39,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1085, Invalid=2947, Unknown=0, NotChecked=0, Total=4032 [2022-03-20 03:34:39,961 INFO L87 Difference]: Start difference. First operand 128 states and 157 transitions. Second operand has 64 states, 64 states have (on average 3.8125) internal successors, (244), 63 states have internal predecessors, (244), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:34:43,776 WARN L833 $PredicateComparison]: unable to prove that (and (< (mod (+ c_main_~x~0 24) 4294967296) 268435455) (< (mod (+ 20 c_main_~x~0) 4294967296) 268435455) (= |c_#NULL.base| |c_old(#NULL.base)|) (< (mod (+ 6 c_main_~x~0) 4294967296) 268435455) (< (mod (+ 25 c_main_~x~0) 4294967296) 268435455) (< (mod (+ 14 c_main_~x~0) 4294967296) 268435455) (< (mod (+ 29 c_main_~x~0) 4294967296) 268435455) (< (mod (+ c_main_~x~0 27) 4294967296) 268435455) (< (mod (+ 13 c_main_~x~0) 4294967296) 268435455) (< (mod (+ 4 c_main_~x~0) 4294967296) 268435455) (< (mod (+ 3 c_main_~x~0) 4294967296) 268435455) (< (mod (+ 15 c_main_~x~0) 4294967296) 268435455) (< (mod c_main_~x~0 4294967296) 268435455) (< (mod (+ 18 c_main_~x~0) 4294967296) 268435455) (< (mod (+ 28 c_main_~x~0) 4294967296) 268435455) (< (mod (+ 9 c_main_~x~0) 4294967296) 268435455) (< (mod (+ 2 c_main_~x~0) 4294967296) 268435455) (< (mod (+ 5 c_main_~x~0) 4294967296) 268435455) (< (mod (+ 16 c_main_~x~0) 4294967296) 268435455) (< (mod (+ 7 c_main_~x~0) 4294967296) 268435455) (< (mod (+ 19 c_main_~x~0) 4294967296) 268435455) (< (mod (+ 8 c_main_~x~0) 4294967296) 268435455) (< (mod (+ 26 c_main_~x~0) 4294967296) 268435455) (< (mod (+ 17 c_main_~x~0) 4294967296) 268435455) (< (mod (+ 23 c_main_~x~0) 4294967296) 268435455) (< (mod (+ 10 c_main_~x~0) 4294967296) 268435455) (< (mod (+ c_main_~x~0 11) 4294967296) 268435455) (< (mod (+ 12 c_main_~x~0) 4294967296) 268435455) (< (mod (+ 21 c_main_~x~0) 4294967296) 268435455) (= |c_#NULL.offset| |c_old(#NULL.offset)|) (< (mod (+ c_main_~x~0 1) 4294967296) 268435455) (< (mod (+ 22 c_main_~x~0) 4294967296) 268435455)) is different from false [2022-03-20 03:34:59,611 WARN L232 SmtUtils]: Spent 5.17s on a formula simplification. DAG size of input: 120 DAG size of output: 12 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 03:35:30,197 WARN L232 SmtUtils]: Spent 6.40s on a formula simplification. DAG size of input: 124 DAG size of output: 16 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 03:40:33,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:40:33,475 INFO L93 Difference]: Finished difference Result 256 states and 317 transitions. [2022-03-20 03:40:33,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-20 03:40:33,476 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 3.8125) internal successors, (244), 63 states have internal predecessors, (244), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 127 [2022-03-20 03:40:33,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:40:33,477 INFO L225 Difference]: With dead ends: 256 [2022-03-20 03:40:33,477 INFO L226 Difference]: Without dead ends: 256 [2022-03-20 03:40:33,480 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 225 SyntacticMatches, 1 SemanticMatches, 124 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1967 ImplicationChecksByTransitivity, 353.5s TimeCoverageRelationStatistics Valid=4082, Invalid=11411, Unknown=11, NotChecked=246, Total=15750 [2022-03-20 03:40:33,480 INFO L913 BasicCegarLoop]: 71 mSDtfsCounter, 451 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 3867 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 4019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 3867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:40:33,480 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [451 Valid, 224 Invalid, 4019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 3867 Invalid, 0 Unknown, 1 Unchecked, 1.6s Time] [2022-03-20 03:40:33,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-03-20 03:40:33,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2022-03-20 03:40:33,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.247011952191235) internal successors, (313), 251 states have internal predecessors, (313), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:40:33,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 317 transitions. [2022-03-20 03:40:33,499 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 317 transitions. Word has length 127 [2022-03-20 03:40:33,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:40:33,499 INFO L478 AbstractCegarLoop]: Abstraction has 256 states and 317 transitions. [2022-03-20 03:40:33,499 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 3.8125) internal successors, (244), 63 states have internal predecessors, (244), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:40:33,499 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 317 transitions. [2022-03-20 03:40:33,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-03-20 03:40:33,504 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:40:33,505 INFO L499 BasicCegarLoop]: trace histogram [61, 61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:40:33,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-20 03:40:33,716 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:40:33,716 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:40:33,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:40:33,717 INFO L85 PathProgramCache]: Analyzing trace with hash -123197948, now seen corresponding path program 6 times [2022-03-20 03:40:33,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:40:33,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313835127] [2022-03-20 03:40:33,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:40:33,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:40:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:40:35,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:40:35,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:40:35,341 INFO L134 CoverageAnalysis]: Checked inductivity of 11102 backedges. 0 proven. 11041 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-03-20 03:40:35,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:40:35,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313835127] [2022-03-20 03:40:35,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313835127] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:40:35,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631017779] [2022-03-20 03:40:35,341 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-20 03:40:35,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:40:35,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:40:35,342 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) [2022-03-20 03:40:35,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-20 03:43:26,594 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 83 check-sat command(s) [2022-03-20 03:43:26,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 03:43:26,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 129 conjunts are in the unsatisfiable core [2022-03-20 03:43:26,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:43:27,576 INFO L134 CoverageAnalysis]: Checked inductivity of 11102 backedges. 0 proven. 11041 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-03-20 03:43:27,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 03:44:02,484 INFO L134 CoverageAnalysis]: Checked inductivity of 11102 backedges. 0 proven. 11041 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-03-20 03:44:02,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631017779] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 03:44:02,484 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 03:44:02,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 64, 68] total 132 [2022-03-20 03:44:02,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807289378] [2022-03-20 03:44:02,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 03:44:02,485 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 132 states [2022-03-20 03:44:02,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:44:02,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2022-03-20 03:44:02,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4356, Invalid=12936, Unknown=0, NotChecked=0, Total=17292 [2022-03-20 03:44:02,491 INFO L87 Difference]: Start difference. First operand 256 states and 317 transitions. Second operand has 132 states, 131 states have (on average 3.83206106870229) internal successors, (502), 130 states have internal predecessors, (502), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:46:14,207 WARN L232 SmtUtils]: Spent 1.41m on a formula simplification. DAG size of input: 201 DAG size of output: 22 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 03:46:16,227 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse61 (+ c_main_~x~0 1))) (let ((.cse12 (< (mod (+ 55 c_main_~x~0) 4294967296) 268435455)) (.cse7 (< (mod (+ 7 c_main_~x~0) 4294967296) 268435455)) (.cse15 (< (mod (+ 57 c_main_~x~0) 4294967296) 268435455)) (.cse20 (< (mod (+ 59 c_main_~x~0) 4294967296) 268435455)) (.cse0 (< (mod (+ 28 c_main_~x~0) 4294967296) 268435455)) (.cse26 (< (mod (+ 20 c_main_~x~0) 4294967296) 268435455)) (.cse19 (< (mod (+ 5 c_main_~x~0) 4294967296) 268435455)) (.cse13 (< (mod (+ 14 c_main_~x~0) 4294967296) 268435455)) (.cse17 (< (mod (+ 40 c_main_~x~0) 4294967296) 268435455)) (.cse36 (< (mod (+ 38 c_main_~x~0) 4294967296) 268435455)) (.cse37 (< (mod (+ 48 c_main_~x~0) 4294967296) 268435455)) (.cse4 (< (mod (+ c_main_~x~0 50) 4294967296) 268435455)) (.cse29 (< (mod (+ 3 c_main_~x~0) 4294967296) 268435455)) (.cse18 (< (mod .cse61 4294967296) 268435455)) (.cse33 (< (mod (+ 58 c_main_~x~0) 4294967296) 268435455)) (.cse30 (< (mod (+ 8 c_main_~x~0) 4294967296) 268435455)) (.cse3 (< (mod (+ 52 c_main_~x~0) 4294967296) 268435455)) (.cse8 (< (mod (+ 2 c_main_~x~0) 4294967296) 268435455)) (.cse28 (< (mod (+ 18 c_main_~x~0) 4294967296) 268435455)) (.cse32 (< (mod (+ 16 c_main_~x~0) 4294967296) 268435455)) (.cse16 (< (mod (+ 42 c_main_~x~0) 4294967296) 268435455)) (.cse21 (< (mod (+ 29 c_main_~x~0) 4294967296) 268435455)) (.cse41 (< (mod (+ 21 c_main_~x~0) 4294967296) 268435455)) (.cse5 (< (mod (+ 9 c_main_~x~0) 4294967296) 268435455)) (.cse27 (< (mod (+ 22 c_main_~x~0) 4294967296) 268435455)) (.cse51 (< (mod (+ 31 c_main_~x~0) 4294967296) 268435455)) (.cse45 (< (mod (+ 6 c_main_~x~0) 4294967296) 268435455)) (.cse47 (< (mod (+ 4 c_main_~x~0) 4294967296) 268435455)) (.cse39 (< (mod (+ 36 c_main_~x~0) 4294967296) 268435455)) (.cse53 (< (mod (+ c_main_~x~0 11) 4294967296) 268435455)) (.cse9 (< (mod (+ 39 c_main_~x~0) 4294967296) 268435455)) (.cse35 (< (mod (+ 41 c_main_~x~0) 4294967296) 268435455)) (.cse48 (< (mod (+ 49 c_main_~x~0) 4294967296) 268435455)) (.cse25 (< (mod (+ 47 c_main_~x~0) 4294967296) 268435455)) (.cse34 (< (mod (+ 43 c_main_~x~0) 4294967296) 268435455)) (.cse24 (< (mod (+ 45 c_main_~x~0) 4294967296) 268435455)) (.cse10 (< (mod (+ c_main_~x~0 37) 4294967296) 268435455)) (.cse52 (< (mod (+ 23 c_main_~x~0) 4294967296) 268435455)) (.cse50 (< (mod (+ 44 c_main_~x~0) 4294967296) 268435455)) (.cse38 (< (mod (+ 46 c_main_~x~0) 4294967296) 268435455)) (.cse31 (< (mod (+ 10 c_main_~x~0) 4294967296) 268435455)) (.cse14 (< (mod (+ 12 c_main_~x~0) 4294967296) 268435455)) (.cse46 (< (mod (+ c_main_~x~0 54) 4294967296) 268435455)) (.cse42 (< (mod (+ 56 c_main_~x~0) 4294967296) 268435455)) (.cse56 (< (mod (+ 34 c_main_~x~0) 4294967296) 268435455)) (.cse11 (< (mod (+ 53 c_main_~x~0) 4294967296) 268435455)) (.cse49 (< (mod (+ 51 c_main_~x~0) 4294967296) 268435455)) (.cse43 (< (mod (+ 17 c_main_~x~0) 4294967296) 268435455)) (.cse40 (< (mod (+ 19 c_main_~x~0) 4294967296) 268435455)) (.cse23 (< (mod (+ 30 c_main_~x~0) 4294967296) 268435455)) (.cse60 (< (mod (+ 32 c_main_~x~0) 4294967296) 268435455)) (.cse44 (< (mod (+ 15 c_main_~x~0) 4294967296) 268435455)) (.cse57 (< (mod (+ 13 c_main_~x~0) 4294967296) 268435455)) (.cse54 (< (mod (+ c_main_~x~0 24) 4294967296) 268435455)) (.cse2 (= (mod c_main_~x~0 2) 0)) (.cse1 (< (mod (+ 26 c_main_~x~0) 4294967296) 268435455)) (.cse22 (< (mod (+ c_main_~x~0 27) 4294967296) 268435455)) (.cse59 (< (mod (+ 25 c_main_~x~0) 4294967296) 268435455)) (.cse58 (< (mod (+ 35 c_main_~x~0) 4294967296) 268435455)) (.cse55 (< (mod (+ 33 c_main_~x~0) 4294967296) 268435455)) (.cse6 (= (mod .cse61 2) 0))) (and (= |c_#NULL.base| |c_old(#NULL.base)|) (or .cse0 (not .cse1) .cse2) (or .cse3 (not .cse4) .cse2) (or .cse5 .cse6 (not .cse7)) (or .cse8 .cse2) (or (< (mod c_main_~x~0 4294967296) 268435455) .cse2) (or .cse9 .cse6 (not .cse10)) (or (not .cse11) .cse12 .cse6) (or .cse13 (not .cse14) .cse2) (or (not .cse12) .cse15 .cse6) (or .cse16 .cse2 (not .cse17)) (or .cse6 .cse18) (or (not .cse19) .cse7 .cse6) (or (not .cse20) (< (mod (+ c_main_~x~0 61) 4294967296) 268435455) .cse6) (or (not .cse15) .cse20 .cse6) (or .cse21 (not .cse22) .cse6) (or .cse23 .cse2 (not .cse0)) (or (not .cse24) .cse25 .cse6) (or (not .cse26) .cse2 .cse27) (or .cse26 .cse2 (not .cse28)) (or (not .cse29) .cse19 .cse6) (or (not .cse30) .cse2 .cse31) (or .cse2 .cse32 (not .cse13)) (or .cse2 (< (mod (+ 60 c_main_~x~0) 4294967296) 268435455) (not .cse33)) (or .cse34 .cse6 (not .cse35)) (or (not .cse36) .cse17 .cse2) (or .cse37 (not .cse38) .cse2) (or .cse36 .cse2 (not .cse39)) (or (not .cse40) .cse41 .cse6) (or (not .cse37) .cse2 .cse4) (or .cse29 (not .cse18) .cse6) (or .cse33 .cse2 (not .cse42)) (or .cse43 .cse6 (not .cse44)) (or (not .cse45) .cse2 .cse30) (or (not .cse3) .cse46 .cse2) (or (not .cse8) .cse47 .cse2) (or .cse28 .cse2 (not .cse32)) (or (not .cse48) .cse6 .cse49) (or (not .cse16) .cse2 .cse50) (or (not .cse21) .cse51 .cse6) (or (not .cse41) .cse52 .cse6) (or .cse53 .cse6 (not .cse5)) (or .cse54 .cse2 (not .cse27)) (or .cse55 (not .cse51) .cse6) (or .cse45 (not .cse47) .cse2) (or (not .cse56) .cse2 .cse39) (or .cse57 (not .cse53) .cse6) (or (not .cse9) .cse35 .cse6) (or .cse48 (not .cse25) .cse6) (or (not .cse34) .cse6 .cse24) (or (not .cse58) .cse10 .cse6) (or .cse59 (not .cse52) .cse6) (or .cse2 (not .cse50) .cse38) (or (not .cse31) .cse2 .cse14) (or (not .cse46) .cse42 .cse2) (or (not .cse60) .cse56 .cse2) (or .cse11 (not .cse49) .cse6) (or (not .cse43) .cse40 .cse6) (= |c_#NULL.offset| |c_old(#NULL.offset)|) (or (not .cse23) .cse60 .cse2) (or .cse44 (not .cse57) .cse6) (or (not .cse54) .cse2 .cse1) (or .cse22 (not .cse59) .cse6) (or .cse58 (not .cse55) .cse6)))) is different from false