/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/iftelse.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-e106359-m [2022-04-15 00:54:57,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-15 00:54:57,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-15 00:54:57,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-15 00:54:57,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-15 00:54:57,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-15 00:54:57,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-15 00:54:57,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-15 00:54:57,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-15 00:54:57,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-15 00:54:57,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-15 00:54:57,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-15 00:54:57,089 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-15 00:54:57,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-15 00:54:57,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-15 00:54:57,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-15 00:54:57,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-15 00:54:57,097 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-15 00:54:57,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-15 00:54:57,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-15 00:54:57,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-15 00:54:57,105 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-15 00:54:57,127 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-15 00:54:57,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-15 00:54:57,128 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-15 00:54:57,128 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-15 00:54:57,129 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-15 00:54:57,129 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-15 00:54:57,129 INFO L138 SettingsManager]: * Use SBE=true [2022-04-15 00:54:57,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-15 00:54:57,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-15 00:54:57,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-15 00:54:57,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-15 00:54:57,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-15 00:54:57,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-15 00:54:57,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-15 00:54:57,130 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-15 00:54:57,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-15 00:54:57,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-15 00:54:57,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-15 00:54:57,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-15 00:54:57,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 00:54:57,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-15 00:54:57,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-15 00:54:57,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-15 00:54:57,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-15 00:54:57,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-15 00:54:57,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-15 00:54:57,132 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-15 00:54:57,132 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-15 00:54:57,133 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-15 00:54:57,134 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-15 00:54:57,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-15 00:54:57,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-15 00:54:57,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-15 00:54:57,346 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-15 00:54:57,347 INFO L275 PluginConnector]: CDTParser initialized [2022-04-15 00:54:57,348 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/iftelse.c [2022-04-15 00:54:57,395 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b8a84d6e/421053fc36fe4e9d990cc74f974419a9/FLAG5b72960d7 [2022-04-15 00:54:57,786 INFO L306 CDTParser]: Found 1 translation units. [2022-04-15 00:54:57,786 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/iftelse.c [2022-04-15 00:54:57,790 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b8a84d6e/421053fc36fe4e9d990cc74f974419a9/FLAG5b72960d7 [2022-04-15 00:54:57,799 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b8a84d6e/421053fc36fe4e9d990cc74f974419a9 [2022-04-15 00:54:57,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-15 00:54:57,802 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-15 00:54:57,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-15 00:54:57,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-15 00:54:57,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-15 00:54:57,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 12:54:57" (1/1) ... [2022-04-15 00:54:57,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37f46512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:54:57, skipping insertion in model container [2022-04-15 00:54:57,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 12:54:57" (1/1) ... [2022-04-15 00:54:57,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-15 00:54:57,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-15 00:54:57,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/iftelse.c[406,419] [2022-04-15 00:54:58,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 00:54:58,032 INFO L203 MainTranslator]: Completed pre-run [2022-04-15 00:54:58,042 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/iftelse.c[406,419] [2022-04-15 00:54:58,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 00:54:58,059 INFO L208 MainTranslator]: Completed translation [2022-04-15 00:54:58,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:54:58 WrapperNode [2022-04-15 00:54:58,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-15 00:54:58,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-15 00:54:58,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-15 00:54:58,062 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-15 00:54:58,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:54:58" (1/1) ... [2022-04-15 00:54:58,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:54:58" (1/1) ... [2022-04-15 00:54:58,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:54:58" (1/1) ... [2022-04-15 00:54:58,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:54:58" (1/1) ... [2022-04-15 00:54:58,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:54:58" (1/1) ... [2022-04-15 00:54:58,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:54:58" (1/1) ... [2022-04-15 00:54:58,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:54:58" (1/1) ... [2022-04-15 00:54:58,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-15 00:54:58,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-15 00:54:58,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-15 00:54:58,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-15 00:54:58,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:54:58" (1/1) ... [2022-04-15 00:54:58,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 00:54:58,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 00:54:58,128 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-15 00:54:58,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-15 00:54:58,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-15 00:54:58,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-15 00:54:58,157 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-15 00:54:58,157 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-15 00:54:58,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-15 00:54:58,157 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-15 00:54:58,159 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-15 00:54:58,159 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-15 00:54:58,159 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-15 00:54:58,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-15 00:54:58,159 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-15 00:54:58,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-15 00:54:58,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-04-15 00:54:58,159 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-15 00:54:58,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-15 00:54:58,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-15 00:54:58,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-15 00:54:58,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-15 00:54:58,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-15 00:54:58,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-15 00:54:58,204 INFO L234 CfgBuilder]: Building ICFG [2022-04-15 00:54:58,206 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-15 00:54:58,313 INFO L275 CfgBuilder]: Performing block encoding [2022-04-15 00:54:58,318 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-15 00:54:58,318 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-15 00:54:58,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 12:54:58 BoogieIcfgContainer [2022-04-15 00:54:58,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-15 00:54:58,327 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-15 00:54:58,327 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-15 00:54:58,328 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-15 00:54:58,330 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 12:54:58" (1/1) ... [2022-04-15 00:54:58,333 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-15 00:54:58,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.04 12:54:58 BasicIcfg [2022-04-15 00:54:58,361 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-15 00:54:58,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-15 00:54:58,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-15 00:54:58,364 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-15 00:54:58,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 12:54:57" (1/4) ... [2022-04-15 00:54:58,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f3ab7ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 12:54:58, skipping insertion in model container [2022-04-15 00:54:58,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:54:58" (2/4) ... [2022-04-15 00:54:58,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f3ab7ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 12:54:58, skipping insertion in model container [2022-04-15 00:54:58,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 12:54:58" (3/4) ... [2022-04-15 00:54:58,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f3ab7ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 12:54:58, skipping insertion in model container [2022-04-15 00:54:58,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.04 12:54:58" (4/4) ... [2022-04-15 00:54:58,370 INFO L111 eAbstractionObserver]: Analyzing ICFG iftelse.cqvasr [2022-04-15 00:54:58,392 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-15 00:54:58,392 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-15 00:54:58,438 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-15 00:54:58,444 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-15 00:54:58,444 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-15 00:54:58,461 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 14 states have (on average 1.5) internal successors, (21), 16 states have internal predecessors, (21), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 00:54:58,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-15 00:54:58,465 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 00:54:58,465 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 00:54:58,466 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 00:54:58,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 00:54:58,470 INFO L85 PathProgramCache]: Analyzing trace with hash -801963998, now seen corresponding path program 1 times [2022-04-15 00:54:58,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 00:54:58,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141053760] [2022-04-15 00:54:58,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 00:54:58,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 00:54:58,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 00:54:59,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 00:54:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 00:54:59,035 INFO L290 TraceCheckUtils]: 0: Hoare triple {35#(and (= |old(~SIZE~0)| ~SIZE~0) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [66] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= v_~SIZE~0_3 20000001) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~SIZE~0=v_~SIZE~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~SIZE~0, #NULL.offset, #NULL.base] {25#true} is VALID [2022-04-15 00:54:59,036 INFO L290 TraceCheckUtils]: 1: Hoare triple {25#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {25#true} is VALID [2022-04-15 00:54:59,036 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {25#true} {25#true} [88] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {25#true} is VALID [2022-04-15 00:54:59,038 INFO L272 TraceCheckUtils]: 0: Hoare triple {25#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {35#(and (= |old(~SIZE~0)| ~SIZE~0) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 00:54:59,039 INFO L290 TraceCheckUtils]: 1: Hoare triple {35#(and (= |old(~SIZE~0)| ~SIZE~0) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [66] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= v_~SIZE~0_3 20000001) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~SIZE~0=v_~SIZE~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~SIZE~0, #NULL.offset, #NULL.base] {25#true} is VALID [2022-04-15 00:54:59,039 INFO L290 TraceCheckUtils]: 2: Hoare triple {25#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {25#true} is VALID [2022-04-15 00:54:59,039 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {25#true} {25#true} [88] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {25#true} is VALID [2022-04-15 00:54:59,040 INFO L272 TraceCheckUtils]: 4: Hoare triple {25#true} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {25#true} is VALID [2022-04-15 00:54:59,040 INFO L290 TraceCheckUtils]: 5: Hoare triple {25#true} [68] mainENTRY-->L20: Formula: (= v_main_~n~0_3 |v_main_#t~nondet4_2|) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~i~0=v_main_~i~0_2, main_~n~0=v_main_~n~0_3, main_~k~0=v_main_~k~0_1, main_~j~0=v_main_~j~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~k~0, main_~j~0, main_~i~0, main_~n~0] {25#true} is VALID [2022-04-15 00:54:59,041 INFO L290 TraceCheckUtils]: 6: Hoare triple {25#true} [71] L20-->L28: Formula: (and (= v_main_~i~0_3 v_main_~j~0_3) (= v_main_~j~0_3 v_main_~k~0_2) (<= (mod v_main_~n~0_7 4294967296) (mod v_~SIZE~0_2 4294967296)) (= v_main_~k~0_2 0)) InVars {~SIZE~0=v_~SIZE~0_2, main_~n~0=v_main_~n~0_7} OutVars{~SIZE~0=v_~SIZE~0_2, main_~i~0=v_main_~i~0_3, main_~n~0=v_main_~n~0_7, main_~k~0=v_main_~k~0_2, main_~j~0=v_main_~j~0_3} AuxVars[] AssignedVars[main_~k~0, main_~j~0, main_~i~0] {30#(and (= main_~j~0 0) (= main_~i~0 0))} is VALID [2022-04-15 00:54:59,042 INFO L290 TraceCheckUtils]: 7: Hoare triple {30#(and (= main_~j~0 0) (= main_~i~0 0))} [75] L28-->L24: Formula: (and (= v_main_~i~0_5 (+ v_main_~i~0_6 3)) (< (mod v_main_~i~0_6 4294967296) (mod v_main_~n~0_9 4294967296))) InVars {main_~i~0=v_main_~i~0_6, main_~n~0=v_main_~n~0_9} OutVars{main_~i~0=v_main_~i~0_5, main_~n~0=v_main_~n~0_9} AuxVars[] AssignedVars[main_~i~0] {31#(and (= main_~j~0 0) (<= 3 main_~i~0) (<= main_~i~0 3))} is VALID [2022-04-15 00:54:59,043 INFO L290 TraceCheckUtils]: 8: Hoare triple {31#(and (= main_~j~0 0) (<= 3 main_~i~0) (<= main_~i~0 3))} [77] L24-->L24-2: Formula: (and (= v_main_~j~0_4 (+ v_main_~j~0_5 3)) (not (= (mod v_main_~i~0_7 2) 0))) InVars {main_~i~0=v_main_~i~0_7, main_~j~0=v_main_~j~0_5} OutVars{main_~i~0=v_main_~i~0_7, main_~j~0=v_main_~j~0_4} AuxVars[] AssignedVars[main_~j~0] {32#(and (not (<= (+ (div (div (+ (* (div main_~i~0 4294967296) (- 4294967296)) main_~i~0) 2) 4294967296) 1) (div main_~j~0 4294967296))) (not (<= (+ 2 (* (div (div (+ (* (div main_~i~0 4294967296) (- 4294967296)) main_~i~0) 2) 4294967296) 2) (div main_~i~0 4294967296)) 0)) (not (<= (+ (* (div (div (+ (* (div main_~i~0 4294967296) (- 4294967296)) main_~i~0) 2) 4294967296) 2) (div main_~i~0 4294967296) 1) (* 2 (div main_~j~0 4294967296)))) (<= (+ main_~i~0 3) (* main_~j~0 2)))} is VALID [2022-04-15 00:54:59,045 INFO L290 TraceCheckUtils]: 9: Hoare triple {32#(and (not (<= (+ (div (div (+ (* (div main_~i~0 4294967296) (- 4294967296)) main_~i~0) 2) 4294967296) 1) (div main_~j~0 4294967296))) (not (<= (+ 2 (* (div (div (+ (* (div main_~i~0 4294967296) (- 4294967296)) main_~i~0) 2) 4294967296) 2) (div main_~i~0 4294967296)) 0)) (not (<= (+ (* (div (div (+ (* (div main_~i~0 4294967296) (- 4294967296)) main_~i~0) 2) 4294967296) 2) (div main_~i~0 4294967296) 1) (* 2 (div main_~j~0 4294967296)))) (<= (+ main_~i~0 3) (* main_~j~0 2)))} [79] L24-2-->L29: Formula: (< 0 (mod v_main_~n~0_1 4294967296)) InVars {main_~n~0=v_main_~n~0_1} OutVars{main_~n~0=v_main_~n~0_1} AuxVars[] AssignedVars[] {32#(and (not (<= (+ (div (div (+ (* (div main_~i~0 4294967296) (- 4294967296)) main_~i~0) 2) 4294967296) 1) (div main_~j~0 4294967296))) (not (<= (+ 2 (* (div (div (+ (* (div main_~i~0 4294967296) (- 4294967296)) main_~i~0) 2) 4294967296) 2) (div main_~i~0 4294967296)) 0)) (not (<= (+ (* (div (div (+ (* (div main_~i~0 4294967296) (- 4294967296)) main_~i~0) 2) 4294967296) 2) (div main_~i~0 4294967296) 1) (* 2 (div main_~j~0 4294967296)))) (<= (+ main_~i~0 3) (* main_~j~0 2)))} is VALID [2022-04-15 00:54:59,047 INFO L272 TraceCheckUtils]: 10: Hoare triple {32#(and (not (<= (+ (div (div (+ (* (div main_~i~0 4294967296) (- 4294967296)) main_~i~0) 2) 4294967296) 1) (div main_~j~0 4294967296))) (not (<= (+ 2 (* (div (div (+ (* (div main_~i~0 4294967296) (- 4294967296)) main_~i~0) 2) 4294967296) 2) (div main_~i~0 4294967296)) 0)) (not (<= (+ (* (div (div (+ (* (div main_~i~0 4294967296) (- 4294967296)) main_~i~0) 2) 4294967296) 2) (div main_~i~0 4294967296) 1) (* 2 (div main_~j~0 4294967296)))) (<= (+ main_~i~0 3) (* main_~j~0 2)))} [81] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (<= (mod (div (mod v_main_~i~0_9 4294967296) 2) 4294967296) (mod v_main_~j~0_6 4294967296)) 1 0)) InVars {main_~i~0=v_main_~i~0_9, main_~j~0=v_main_~j~0_6} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~j~0, main_~i~0] {33#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-15 00:54:59,048 INFO L290 TraceCheckUtils]: 11: Hoare triple {33#(not (= |__VERIFIER_assert_#in~cond| 0))} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {34#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-15 00:54:59,049 INFO L290 TraceCheckUtils]: 12: Hoare triple {34#(not (= __VERIFIER_assert_~cond 0))} [83] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_1 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {26#false} is VALID [2022-04-15 00:54:59,049 INFO L290 TraceCheckUtils]: 13: Hoare triple {26#false} [85] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {26#false} is VALID [2022-04-15 00:54:59,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 00:54:59,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 00:54:59,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141053760] [2022-04-15 00:54:59,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141053760] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 00:54:59,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 00:54:59,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-15 00:54:59,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357119432] [2022-04-15 00:54:59,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 00:54:59,060 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.25) internal successors, (10), 6 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 [2022-04-15 00:54:59,062 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 00:54:59,065 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 8 states, 8 states have (on average 1.25) internal successors, (10), 6 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) [2022-04-15 00:54:59,087 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 00:54:59,087 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-15 00:54:59,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-15 00:54:59,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-15 00:54:59,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-04-15 00:54:59,111 INFO L87 Difference]: Start difference. First operand has 22 states, 14 states have (on average 1.5) internal successors, (21), 16 states have internal predecessors, (21), 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 8 states, 8 states have (on average 1.25) internal successors, (10), 6 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) [2022-04-15 00:55:03,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 00:55:05,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 00:55:07,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 00:55:09,810 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 00:55:12,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 00:55:16,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 00:55:18,356 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 00:55:20,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 00:55:22,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 00:55:22,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:55:22,776 INFO L93 Difference]: Finished difference Result 53 states and 73 transitions. [2022-04-15 00:55:22,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-15 00:55:22,776 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.25) internal successors, (10), 6 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 [2022-04-15 00:55:22,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 00:55:22,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 6 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) [2022-04-15 00:55:22,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 73 transitions. [2022-04-15 00:55:22,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 6 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) [2022-04-15 00:55:22,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 73 transitions. [2022-04-15 00:55:22,788 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 9 states and 73 transitions. [2022-04-15 00:55:22,858 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 73 edges. 73 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 00:55:22,864 INFO L225 Difference]: With dead ends: 53 [2022-04-15 00:55:22,864 INFO L226 Difference]: Without dead ends: 27 [2022-04-15 00:55:22,866 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-04-15 00:55:22,868 INFO L913 BasicCegarLoop]: 22 mSDtfsCounter, 38 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 12 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2022-04-15 00:55:22,869 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 55 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 125 Invalid, 9 Unknown, 0 Unchecked, 18.9s Time] [2022-04-15 00:55:22,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-04-15 00:55:22,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2022-04-15 00:55:22,893 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 00:55:22,894 INFO L82 GeneralOperation]: Start isEquivalent. First operand 27 states. Second operand has 25 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 00:55:22,895 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand has 25 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 00:55:22,895 INFO L87 Difference]: Start difference. First operand 27 states. Second operand has 25 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 00:55:22,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:55:22,897 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2022-04-15 00:55:22,897 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-04-15 00:55:22,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 00:55:22,897 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 00:55:22,898 INFO L74 IsIncluded]: Start isIncluded. First operand has 25 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Second operand 27 states. [2022-04-15 00:55:22,898 INFO L87 Difference]: Start difference. First operand has 25 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Second operand 27 states. [2022-04-15 00:55:22,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:55:22,900 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2022-04-15 00:55:22,900 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-04-15 00:55:22,900 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 00:55:22,900 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 00:55:22,901 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 00:55:22,901 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 00:55:22,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 00:55:22,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-04-15 00:55:22,904 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 14 [2022-04-15 00:55:22,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 00:55:22,904 INFO L478 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-04-15 00:55:22,905 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.25) internal successors, (10), 6 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) [2022-04-15 00:55:22,905 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-04-15 00:55:22,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-15 00:55:22,906 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 00:55:22,906 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 00:55:22,906 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-15 00:55:22,906 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 00:55:22,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 00:55:22,909 INFO L85 PathProgramCache]: Analyzing trace with hash -2135486064, now seen corresponding path program 1 times [2022-04-15 00:55:22,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 00:55:22,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176325782] [2022-04-15 00:55:22,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 00:55:22,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 00:55:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 00:55:22,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 00:55:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 00:55:22,984 INFO L290 TraceCheckUtils]: 0: Hoare triple {213#(and (= |old(~SIZE~0)| ~SIZE~0) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [66] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= v_~SIZE~0_3 20000001) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~SIZE~0=v_~SIZE~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~SIZE~0, #NULL.offset, #NULL.base] {207#true} is VALID [2022-04-15 00:55:22,985 INFO L290 TraceCheckUtils]: 1: Hoare triple {207#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {207#true} is VALID [2022-04-15 00:55:22,985 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {207#true} {207#true} [88] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {207#true} is VALID [2022-04-15 00:55:22,987 INFO L272 TraceCheckUtils]: 0: Hoare triple {207#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {213#(and (= |old(~SIZE~0)| ~SIZE~0) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 00:55:22,987 INFO L290 TraceCheckUtils]: 1: Hoare triple {213#(and (= |old(~SIZE~0)| ~SIZE~0) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [66] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= v_~SIZE~0_3 20000001) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~SIZE~0=v_~SIZE~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~SIZE~0, #NULL.offset, #NULL.base] {207#true} is VALID [2022-04-15 00:55:22,987 INFO L290 TraceCheckUtils]: 2: Hoare triple {207#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {207#true} is VALID [2022-04-15 00:55:22,987 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {207#true} {207#true} [88] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {207#true} is VALID [2022-04-15 00:55:22,987 INFO L272 TraceCheckUtils]: 4: Hoare triple {207#true} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {207#true} is VALID [2022-04-15 00:55:22,987 INFO L290 TraceCheckUtils]: 5: Hoare triple {207#true} [68] mainENTRY-->L20: Formula: (= v_main_~n~0_3 |v_main_#t~nondet4_2|) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~i~0=v_main_~i~0_2, main_~n~0=v_main_~n~0_3, main_~k~0=v_main_~k~0_1, main_~j~0=v_main_~j~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~k~0, main_~j~0, main_~i~0, main_~n~0] {207#true} is VALID [2022-04-15 00:55:22,988 INFO L290 TraceCheckUtils]: 6: Hoare triple {207#true} [71] L20-->L28: Formula: (and (= v_main_~i~0_3 v_main_~j~0_3) (= v_main_~j~0_3 v_main_~k~0_2) (<= (mod v_main_~n~0_7 4294967296) (mod v_~SIZE~0_2 4294967296)) (= v_main_~k~0_2 0)) InVars {~SIZE~0=v_~SIZE~0_2, main_~n~0=v_main_~n~0_7} OutVars{~SIZE~0=v_~SIZE~0_2, main_~i~0=v_main_~i~0_3, main_~n~0=v_main_~n~0_7, main_~k~0=v_main_~k~0_2, main_~j~0=v_main_~j~0_3} AuxVars[] AssignedVars[main_~k~0, main_~j~0, main_~i~0] {207#true} is VALID [2022-04-15 00:55:22,988 INFO L290 TraceCheckUtils]: 7: Hoare triple {207#true} [75] L28-->L24: Formula: (and (= v_main_~i~0_5 (+ v_main_~i~0_6 3)) (< (mod v_main_~i~0_6 4294967296) (mod v_main_~n~0_9 4294967296))) InVars {main_~i~0=v_main_~i~0_6, main_~n~0=v_main_~n~0_9} OutVars{main_~i~0=v_main_~i~0_5, main_~n~0=v_main_~n~0_9} AuxVars[] AssignedVars[main_~i~0] {207#true} is VALID [2022-04-15 00:55:22,988 INFO L290 TraceCheckUtils]: 8: Hoare triple {207#true} [77] L24-->L24-2: Formula: (and (= v_main_~j~0_4 (+ v_main_~j~0_5 3)) (not (= (mod v_main_~i~0_7 2) 0))) InVars {main_~i~0=v_main_~i~0_7, main_~j~0=v_main_~j~0_5} OutVars{main_~i~0=v_main_~i~0_7, main_~j~0=v_main_~j~0_4} AuxVars[] AssignedVars[main_~j~0] {207#true} is VALID [2022-04-15 00:55:22,989 INFO L290 TraceCheckUtils]: 9: Hoare triple {207#true} [80] L24-2-->L28: Formula: (not (< 0 (mod v_main_~n~0_2 4294967296))) InVars {main_~n~0=v_main_~n~0_2} OutVars{main_~n~0=v_main_~n~0_2} AuxVars[] AssignedVars[] {212#(<= main_~n~0 (* (div main_~n~0 4294967296) 4294967296))} is VALID [2022-04-15 00:55:22,990 INFO L290 TraceCheckUtils]: 10: Hoare triple {212#(<= main_~n~0 (* (div main_~n~0 4294967296) 4294967296))} [75] L28-->L24: Formula: (and (= v_main_~i~0_5 (+ v_main_~i~0_6 3)) (< (mod v_main_~i~0_6 4294967296) (mod v_main_~n~0_9 4294967296))) InVars {main_~i~0=v_main_~i~0_6, main_~n~0=v_main_~n~0_9} OutVars{main_~i~0=v_main_~i~0_5, main_~n~0=v_main_~n~0_9} AuxVars[] AssignedVars[main_~i~0] {212#(<= main_~n~0 (* (div main_~n~0 4294967296) 4294967296))} is VALID [2022-04-15 00:55:22,990 INFO L290 TraceCheckUtils]: 11: Hoare triple {212#(<= main_~n~0 (* (div main_~n~0 4294967296) 4294967296))} [77] L24-->L24-2: Formula: (and (= v_main_~j~0_4 (+ v_main_~j~0_5 3)) (not (= (mod v_main_~i~0_7 2) 0))) InVars {main_~i~0=v_main_~i~0_7, main_~j~0=v_main_~j~0_5} OutVars{main_~i~0=v_main_~i~0_7, main_~j~0=v_main_~j~0_4} AuxVars[] AssignedVars[main_~j~0] {212#(<= main_~n~0 (* (div main_~n~0 4294967296) 4294967296))} is VALID [2022-04-15 00:55:22,991 INFO L290 TraceCheckUtils]: 12: Hoare triple {212#(<= main_~n~0 (* (div main_~n~0 4294967296) 4294967296))} [79] L24-2-->L29: Formula: (< 0 (mod v_main_~n~0_1 4294967296)) InVars {main_~n~0=v_main_~n~0_1} OutVars{main_~n~0=v_main_~n~0_1} AuxVars[] AssignedVars[] {208#false} is VALID [2022-04-15 00:55:22,991 INFO L272 TraceCheckUtils]: 13: Hoare triple {208#false} [81] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (<= (mod (div (mod v_main_~i~0_9 4294967296) 2) 4294967296) (mod v_main_~j~0_6 4294967296)) 1 0)) InVars {main_~i~0=v_main_~i~0_9, main_~j~0=v_main_~j~0_6} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~j~0, main_~i~0] {208#false} is VALID [2022-04-15 00:55:22,991 INFO L290 TraceCheckUtils]: 14: Hoare triple {208#false} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {208#false} is VALID [2022-04-15 00:55:22,991 INFO L290 TraceCheckUtils]: 15: Hoare triple {208#false} [83] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_1 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {208#false} is VALID [2022-04-15 00:55:22,991 INFO L290 TraceCheckUtils]: 16: Hoare triple {208#false} [85] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#false} is VALID [2022-04-15 00:55:22,992 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 00:55:22,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 00:55:22,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176325782] [2022-04-15 00:55:22,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176325782] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 00:55:22,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 00:55:22,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-15 00:55:22,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910306220] [2022-04-15 00:55:22,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 00:55:22,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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 17 [2022-04-15 00:55:22,994 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 00:55:22,994 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 00:55:23,010 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 00:55:23,011 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-15 00:55:23,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-15 00:55:23,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-15 00:55:23,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-15 00:55:23,014 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 00:55:27,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 00:55:29,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 00:55:29,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:55:29,459 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2022-04-15 00:55:29,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-15 00:55:29,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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 17 [2022-04-15 00:55:29,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 00:55:29,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 00:55:29,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 33 transitions. [2022-04-15 00:55:29,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 00:55:29,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 33 transitions. [2022-04-15 00:55:29,463 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 33 transitions. [2022-04-15 00:55:29,491 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 00:55:29,492 INFO L225 Difference]: With dead ends: 36 [2022-04-15 00:55:29,492 INFO L226 Difference]: Without dead ends: 25 [2022-04-15 00:55:29,493 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-15 00:55:29,493 INFO L913 BasicCegarLoop]: 17 mSDtfsCounter, 12 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-04-15 00:55:29,494 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 24 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 2 Unknown, 0 Unchecked, 4.1s Time] [2022-04-15 00:55:29,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-04-15 00:55:29,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-04-15 00:55:29,519 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 00:55:29,519 INFO L82 GeneralOperation]: Start isEquivalent. First operand 25 states. Second operand has 25 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 00:55:29,520 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand has 25 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 00:55:29,522 INFO L87 Difference]: Start difference. First operand 25 states. Second operand has 25 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 00:55:29,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:55:29,526 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2022-04-15 00:55:29,526 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2022-04-15 00:55:29,526 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 00:55:29,526 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 00:55:29,528 INFO L74 IsIncluded]: Start isIncluded. First operand has 25 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Second operand 25 states. [2022-04-15 00:55:29,528 INFO L87 Difference]: Start difference. First operand has 25 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Second operand 25 states. [2022-04-15 00:55:29,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:55:29,535 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2022-04-15 00:55:29,535 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2022-04-15 00:55:29,536 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 00:55:29,536 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 00:55:29,536 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 00:55:29,537 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 00:55:29,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 00:55:29,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2022-04-15 00:55:29,544 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 17 [2022-04-15 00:55:29,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 00:55:29,544 INFO L478 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-04-15 00:55:29,545 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 00:55:29,545 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2022-04-15 00:55:29,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-04-15 00:55:29,545 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 00:55:29,545 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 00:55:29,546 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-15 00:55:29,546 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 00:55:29,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 00:55:29,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1201514649, now seen corresponding path program 1 times [2022-04-15 00:55:29,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 00:55:29,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142641682] [2022-04-15 00:55:29,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 00:55:29,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 00:55:29,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 00:55:29,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 00:55:29,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 00:55:29,708 INFO L290 TraceCheckUtils]: 0: Hoare triple {365#(and (= |old(~SIZE~0)| ~SIZE~0) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [66] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= v_~SIZE~0_3 20000001) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~SIZE~0=v_~SIZE~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~SIZE~0, #NULL.offset, #NULL.base] {353#true} is VALID [2022-04-15 00:55:29,708 INFO L290 TraceCheckUtils]: 1: Hoare triple {353#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {353#true} is VALID [2022-04-15 00:55:29,708 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {353#true} {353#true} [88] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {353#true} is VALID [2022-04-15 00:55:29,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-04-15 00:55:29,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 00:55:29,719 INFO L290 TraceCheckUtils]: 0: Hoare triple {353#true} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {353#true} is VALID [2022-04-15 00:55:29,719 INFO L290 TraceCheckUtils]: 1: Hoare triple {353#true} [84] L10-->L10-2: Formula: (not (= v___VERIFIER_assert_~cond_2 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {353#true} is VALID [2022-04-15 00:55:29,719 INFO L290 TraceCheckUtils]: 2: Hoare triple {353#true} [87] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {353#true} is VALID [2022-04-15 00:55:29,724 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {353#true} {359#(and (<= 3 main_~i~0) (<= main_~i~0 3))} [90] __VERIFIER_assertEXIT-->L28: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (<= (mod (div (mod v_main_~i~0_9 4294967296) 2) 4294967296) (mod v_main_~j~0_6 4294967296)) 1 0)) InVars {main_~i~0=v_main_~i~0_9, main_~j~0=v_main_~j~0_6} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~j~0, main_~i~0] {359#(and (<= 3 main_~i~0) (<= main_~i~0 3))} is VALID [2022-04-15 00:55:29,724 INFO L272 TraceCheckUtils]: 0: Hoare triple {353#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {365#(and (= |old(~SIZE~0)| ~SIZE~0) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 00:55:29,725 INFO L290 TraceCheckUtils]: 1: Hoare triple {365#(and (= |old(~SIZE~0)| ~SIZE~0) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [66] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= v_~SIZE~0_3 20000001) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~SIZE~0=v_~SIZE~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~SIZE~0, #NULL.offset, #NULL.base] {353#true} is VALID [2022-04-15 00:55:29,725 INFO L290 TraceCheckUtils]: 2: Hoare triple {353#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {353#true} is VALID [2022-04-15 00:55:29,725 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {353#true} {353#true} [88] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {353#true} is VALID [2022-04-15 00:55:29,725 INFO L272 TraceCheckUtils]: 4: Hoare triple {353#true} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {353#true} is VALID [2022-04-15 00:55:29,727 INFO L290 TraceCheckUtils]: 5: Hoare triple {353#true} [68] mainENTRY-->L20: Formula: (= v_main_~n~0_3 |v_main_#t~nondet4_2|) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~i~0=v_main_~i~0_2, main_~n~0=v_main_~n~0_3, main_~k~0=v_main_~k~0_1, main_~j~0=v_main_~j~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~k~0, main_~j~0, main_~i~0, main_~n~0] {353#true} is VALID [2022-04-15 00:55:29,728 INFO L290 TraceCheckUtils]: 6: Hoare triple {353#true} [71] L20-->L28: Formula: (and (= v_main_~i~0_3 v_main_~j~0_3) (= v_main_~j~0_3 v_main_~k~0_2) (<= (mod v_main_~n~0_7 4294967296) (mod v_~SIZE~0_2 4294967296)) (= v_main_~k~0_2 0)) InVars {~SIZE~0=v_~SIZE~0_2, main_~n~0=v_main_~n~0_7} OutVars{~SIZE~0=v_~SIZE~0_2, main_~i~0=v_main_~i~0_3, main_~n~0=v_main_~n~0_7, main_~k~0=v_main_~k~0_2, main_~j~0=v_main_~j~0_3} AuxVars[] AssignedVars[main_~k~0, main_~j~0, main_~i~0] {358#(= main_~i~0 0)} is VALID [2022-04-15 00:55:29,729 INFO L290 TraceCheckUtils]: 7: Hoare triple {358#(= main_~i~0 0)} [75] L28-->L24: Formula: (and (= v_main_~i~0_5 (+ v_main_~i~0_6 3)) (< (mod v_main_~i~0_6 4294967296) (mod v_main_~n~0_9 4294967296))) InVars {main_~i~0=v_main_~i~0_6, main_~n~0=v_main_~n~0_9} OutVars{main_~i~0=v_main_~i~0_5, main_~n~0=v_main_~n~0_9} AuxVars[] AssignedVars[main_~i~0] {359#(and (<= 3 main_~i~0) (<= main_~i~0 3))} is VALID [2022-04-15 00:55:29,729 INFO L290 TraceCheckUtils]: 8: Hoare triple {359#(and (<= 3 main_~i~0) (<= main_~i~0 3))} [77] L24-->L24-2: Formula: (and (= v_main_~j~0_4 (+ v_main_~j~0_5 3)) (not (= (mod v_main_~i~0_7 2) 0))) InVars {main_~i~0=v_main_~i~0_7, main_~j~0=v_main_~j~0_5} OutVars{main_~i~0=v_main_~i~0_7, main_~j~0=v_main_~j~0_4} AuxVars[] AssignedVars[main_~j~0] {359#(and (<= 3 main_~i~0) (<= main_~i~0 3))} is VALID [2022-04-15 00:55:29,730 INFO L290 TraceCheckUtils]: 9: Hoare triple {359#(and (<= 3 main_~i~0) (<= main_~i~0 3))} [79] L24-2-->L29: Formula: (< 0 (mod v_main_~n~0_1 4294967296)) InVars {main_~n~0=v_main_~n~0_1} OutVars{main_~n~0=v_main_~n~0_1} AuxVars[] AssignedVars[] {359#(and (<= 3 main_~i~0) (<= main_~i~0 3))} is VALID [2022-04-15 00:55:29,730 INFO L272 TraceCheckUtils]: 10: Hoare triple {359#(and (<= 3 main_~i~0) (<= main_~i~0 3))} [81] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (<= (mod (div (mod v_main_~i~0_9 4294967296) 2) 4294967296) (mod v_main_~j~0_6 4294967296)) 1 0)) InVars {main_~i~0=v_main_~i~0_9, main_~j~0=v_main_~j~0_6} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~j~0, main_~i~0] {353#true} is VALID [2022-04-15 00:55:29,731 INFO L290 TraceCheckUtils]: 11: Hoare triple {353#true} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {353#true} is VALID [2022-04-15 00:55:29,732 INFO L290 TraceCheckUtils]: 12: Hoare triple {353#true} [84] L10-->L10-2: Formula: (not (= v___VERIFIER_assert_~cond_2 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {353#true} is VALID [2022-04-15 00:55:29,732 INFO L290 TraceCheckUtils]: 13: Hoare triple {353#true} [87] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {353#true} is VALID [2022-04-15 00:55:29,733 INFO L284 TraceCheckUtils]: 14: Hoare quadruple {353#true} {359#(and (<= 3 main_~i~0) (<= main_~i~0 3))} [90] __VERIFIER_assertEXIT-->L28: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (<= (mod (div (mod v_main_~i~0_9 4294967296) 2) 4294967296) (mod v_main_~j~0_6 4294967296)) 1 0)) InVars {main_~i~0=v_main_~i~0_9, main_~j~0=v_main_~j~0_6} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~j~0, main_~i~0] {359#(and (<= 3 main_~i~0) (<= main_~i~0 3))} is VALID [2022-04-15 00:55:29,734 INFO L290 TraceCheckUtils]: 15: Hoare triple {359#(and (<= 3 main_~i~0) (<= main_~i~0 3))} [75] L28-->L24: Formula: (and (= v_main_~i~0_5 (+ v_main_~i~0_6 3)) (< (mod v_main_~i~0_6 4294967296) (mod v_main_~n~0_9 4294967296))) InVars {main_~i~0=v_main_~i~0_6, main_~n~0=v_main_~n~0_9} OutVars{main_~i~0=v_main_~i~0_5, main_~n~0=v_main_~n~0_9} AuxVars[] AssignedVars[main_~i~0] {364#(and (<= main_~i~0 (* (div main_~i~0 2) 2)) (<= 6 main_~i~0))} is VALID [2022-04-15 00:55:29,735 INFO L290 TraceCheckUtils]: 16: Hoare triple {364#(and (<= main_~i~0 (* (div main_~i~0 2) 2)) (<= 6 main_~i~0))} [77] L24-->L24-2: Formula: (and (= v_main_~j~0_4 (+ v_main_~j~0_5 3)) (not (= (mod v_main_~i~0_7 2) 0))) InVars {main_~i~0=v_main_~i~0_7, main_~j~0=v_main_~j~0_5} OutVars{main_~i~0=v_main_~i~0_7, main_~j~0=v_main_~j~0_4} AuxVars[] AssignedVars[main_~j~0] {354#false} is VALID [2022-04-15 00:55:29,735 INFO L290 TraceCheckUtils]: 17: Hoare triple {354#false} [79] L24-2-->L29: Formula: (< 0 (mod v_main_~n~0_1 4294967296)) InVars {main_~n~0=v_main_~n~0_1} OutVars{main_~n~0=v_main_~n~0_1} AuxVars[] AssignedVars[] {354#false} is VALID [2022-04-15 00:55:29,735 INFO L272 TraceCheckUtils]: 18: Hoare triple {354#false} [81] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (<= (mod (div (mod v_main_~i~0_9 4294967296) 2) 4294967296) (mod v_main_~j~0_6 4294967296)) 1 0)) InVars {main_~i~0=v_main_~i~0_9, main_~j~0=v_main_~j~0_6} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~j~0, main_~i~0] {354#false} is VALID [2022-04-15 00:55:29,735 INFO L290 TraceCheckUtils]: 19: Hoare triple {354#false} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {354#false} is VALID [2022-04-15 00:55:29,735 INFO L290 TraceCheckUtils]: 20: Hoare triple {354#false} [83] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_1 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {354#false} is VALID [2022-04-15 00:55:29,736 INFO L290 TraceCheckUtils]: 21: Hoare triple {354#false} [85] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {354#false} is VALID [2022-04-15 00:55:29,737 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 00:55:29,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 00:55:29,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142641682] [2022-04-15 00:55:29,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142641682] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-15 00:55:29,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990439954] [2022-04-15 00:55:29,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 00:55:29,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 00:55:29,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 00:55:29,739 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-15 00:55:29,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process