/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/nla-digbench-scaling/ps2-ll_valuebound20.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-e106359-m [2022-04-15 04:22:19,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-15 04:22:19,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-15 04:22:19,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-15 04:22:19,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-15 04:22:19,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-15 04:22:19,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-15 04:22:19,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-15 04:22:19,267 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-15 04:22:19,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-15 04:22:19,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-15 04:22:19,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-15 04:22:19,269 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-15 04:22:19,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-15 04:22:19,270 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-15 04:22:19,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-15 04:22:19,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-15 04:22:19,271 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-15 04:22:19,272 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-15 04:22:19,275 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-15 04:22:19,275 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-15 04:22:19,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-15 04:22:19,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-15 04:22:19,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-15 04:22:19,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-15 04:22:19,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-15 04:22:19,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-15 04:22:19,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-15 04:22:19,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-15 04:22:19,292 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 04:22:19,316 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-15 04:22:19,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-15 04:22:19,317 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-15 04:22:19,317 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-15 04:22:19,317 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-15 04:22:19,317 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-15 04:22:19,318 INFO L138 SettingsManager]: * Use SBE=true [2022-04-15 04:22:19,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-15 04:22:19,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-15 04:22:19,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-15 04:22:19,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-15 04:22:19,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-15 04:22:19,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-15 04:22:19,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-15 04:22:19,319 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-15 04:22:19,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-15 04:22:19,319 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-15 04:22:19,319 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-15 04:22:19,319 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-15 04:22:19,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 04:22:19,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-15 04:22:19,319 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-15 04:22:19,320 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-15 04:22:19,320 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-15 04:22:19,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-15 04:22:19,320 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-15 04:22:19,320 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-15 04:22:19,320 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-15 04:22:19,321 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-15 04:22:19,321 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-15 04:22:19,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-15 04:22:19,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-15 04:22:19,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-15 04:22:19,515 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-15 04:22:19,519 INFO L275 PluginConnector]: CDTParser initialized [2022-04-15 04:22:19,520 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/ps2-ll_valuebound20.c [2022-04-15 04:22:19,560 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5acb5b151/1efc8e9e485942bb89f7f0b72032a91c/FLAG27514d0a2 [2022-04-15 04:22:19,901 INFO L306 CDTParser]: Found 1 translation units. [2022-04-15 04:22:19,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps2-ll_valuebound20.c [2022-04-15 04:22:19,906 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5acb5b151/1efc8e9e485942bb89f7f0b72032a91c/FLAG27514d0a2 [2022-04-15 04:22:19,920 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5acb5b151/1efc8e9e485942bb89f7f0b72032a91c [2022-04-15 04:22:19,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-15 04:22:19,922 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-15 04:22:19,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-15 04:22:19,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-15 04:22:19,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-15 04:22:19,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 04:22:19" (1/1) ... [2022-04-15 04:22:19,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@496fb656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 04:22:19, skipping insertion in model container [2022-04-15 04:22:19,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 04:22:19" (1/1) ... [2022-04-15 04:22:19,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-15 04:22:19,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-15 04:22:20,118 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps2-ll_valuebound20.c[454,467] [2022-04-15 04:22:20,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 04:22:20,146 INFO L203 MainTranslator]: Completed pre-run [2022-04-15 04:22:20,155 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps2-ll_valuebound20.c[454,467] [2022-04-15 04:22:20,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 04:22:20,174 INFO L208 MainTranslator]: Completed translation [2022-04-15 04:22:20,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 04:22:20 WrapperNode [2022-04-15 04:22:20,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-15 04:22:20,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-15 04:22:20,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-15 04:22:20,177 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-15 04:22:20,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 04:22:20" (1/1) ... [2022-04-15 04:22:20,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 04:22:20" (1/1) ... [2022-04-15 04:22:20,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 04:22:20" (1/1) ... [2022-04-15 04:22:20,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 04:22:20" (1/1) ... [2022-04-15 04:22:20,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 04:22:20" (1/1) ... [2022-04-15 04:22:20,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 04:22:20" (1/1) ... [2022-04-15 04:22:20,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 04:22:20" (1/1) ... [2022-04-15 04:22:20,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-15 04:22:20,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-15 04:22:20,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-15 04:22:20,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-15 04:22:20,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 04:22:20" (1/1) ... [2022-04-15 04:22:20,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 04:22:20,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 04:22:20,222 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 04:22:20,229 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 04:22:20,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-15 04:22:20,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-15 04:22:20,249 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-15 04:22:20,249 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-15 04:22:20,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-15 04:22:20,249 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-15 04:22:20,250 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-15 04:22:20,250 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-15 04:22:20,250 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-15 04:22:20,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-15 04:22:20,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-15 04:22:20,250 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-15 04:22:20,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-15 04:22:20,250 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-15 04:22:20,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-15 04:22:20,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-15 04:22:20,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-15 04:22:20,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-15 04:22:20,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-15 04:22:20,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-15 04:22:20,292 INFO L234 CfgBuilder]: Building ICFG [2022-04-15 04:22:20,293 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-15 04:22:20,389 INFO L275 CfgBuilder]: Performing block encoding [2022-04-15 04:22:20,393 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-15 04:22:20,393 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-15 04:22:20,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 04:22:20 BoogieIcfgContainer [2022-04-15 04:22:20,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-15 04:22:20,395 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-15 04:22:20,395 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-15 04:22:20,396 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-15 04:22:20,398 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 04:22:20" (1/1) ... [2022-04-15 04:22:20,399 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-15 04:22:20,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.04 04:22:20 BasicIcfg [2022-04-15 04:22:20,414 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-15 04:22:20,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-15 04:22:20,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-15 04:22:20,416 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-15 04:22:20,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 04:22:19" (1/4) ... [2022-04-15 04:22:20,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c90f50f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 04:22:20, skipping insertion in model container [2022-04-15 04:22:20,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 04:22:20" (2/4) ... [2022-04-15 04:22:20,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c90f50f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 04:22:20, skipping insertion in model container [2022-04-15 04:22:20,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 04:22:20" (3/4) ... [2022-04-15 04:22:20,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c90f50f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 04:22:20, skipping insertion in model container [2022-04-15 04:22:20,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.04 04:22:20" (4/4) ... [2022-04-15 04:22:20,418 INFO L111 eAbstractionObserver]: Analyzing ICFG ps2-ll_valuebound20.cqvasr [2022-04-15 04:22:20,421 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-15 04:22:20,421 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-15 04:22:20,488 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-15 04:22:20,493 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 04:22:20,493 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-15 04:22:20,508 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-15 04:22:20,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-15 04:22:20,512 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 04:22:20,512 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 04:22:20,512 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 04:22:20,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 04:22:20,519 INFO L85 PathProgramCache]: Analyzing trace with hash 409333534, now seen corresponding path program 1 times [2022-04-15 04:22:20,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 04:22:20,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422869001] [2022-04-15 04:22:20,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 04:22:20,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 04:22:20,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 04:22:20,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 04:22:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 04:22:20,705 INFO L290 TraceCheckUtils]: 0: Hoare triple {39#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [62] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {30#true} is VALID [2022-04-15 04:22:20,705 INFO L290 TraceCheckUtils]: 1: Hoare triple {30#true} [65] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {30#true} is VALID [2022-04-15 04:22:20,706 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {30#true} {30#true} [87] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {30#true} is VALID [2022-04-15 04:22:20,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-15 04:22:20,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 04:22:20,716 INFO L290 TraceCheckUtils]: 0: Hoare triple {30#true} [68] assume_abort_if_notENTRY-->L7: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {30#true} is VALID [2022-04-15 04:22:20,718 INFO L290 TraceCheckUtils]: 1: Hoare triple {30#true} [72] L7-->L7-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {31#false} is VALID [2022-04-15 04:22:20,718 INFO L290 TraceCheckUtils]: 2: Hoare triple {31#false} [76] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {31#false} is VALID [2022-04-15 04:22:20,719 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {31#false} {30#true} [88] assume_abort_if_notEXIT-->L21-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_7) (<= v_main_~k~0_7 20)) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {31#false} is VALID [2022-04-15 04:22:20,721 INFO L272 TraceCheckUtils]: 0: Hoare triple {30#true} [60] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {39#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 04:22:20,723 INFO L290 TraceCheckUtils]: 1: Hoare triple {39#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [62] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {30#true} is VALID [2022-04-15 04:22:20,723 INFO L290 TraceCheckUtils]: 2: Hoare triple {30#true} [65] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {30#true} is VALID [2022-04-15 04:22:20,724 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {30#true} {30#true} [87] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {30#true} is VALID [2022-04-15 04:22:20,724 INFO L272 TraceCheckUtils]: 4: Hoare triple {30#true} [61] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {30#true} is VALID [2022-04-15 04:22:20,724 INFO L290 TraceCheckUtils]: 5: Hoare triple {30#true} [64] mainENTRY-->L21: Formula: (and (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_2, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {30#true} is VALID [2022-04-15 04:22:20,724 INFO L272 TraceCheckUtils]: 6: Hoare triple {30#true} [66] L21-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_7) (<= v_main_~k~0_7 20)) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {30#true} is VALID [2022-04-15 04:22:20,725 INFO L290 TraceCheckUtils]: 7: Hoare triple {30#true} [68] assume_abort_if_notENTRY-->L7: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {30#true} is VALID [2022-04-15 04:22:20,725 INFO L290 TraceCheckUtils]: 8: Hoare triple {30#true} [72] L7-->L7-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {31#false} is VALID [2022-04-15 04:22:20,725 INFO L290 TraceCheckUtils]: 9: Hoare triple {31#false} [76] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {31#false} is VALID [2022-04-15 04:22:20,726 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {31#false} {30#true} [88] assume_abort_if_notEXIT-->L21-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_7) (<= v_main_~k~0_7 20)) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {31#false} is VALID [2022-04-15 04:22:20,727 INFO L290 TraceCheckUtils]: 11: Hoare triple {31#false} [67] L21-1-->L27-2: Formula: (and (= v_main_~c~0_5 0) (= v_main_~y~0_5 0) (= v_main_~x~0_5 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_5, main_~y~0=v_main_~y~0_5, main_~x~0=v_main_~x~0_5} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {31#false} is VALID [2022-04-15 04:22:20,727 INFO L290 TraceCheckUtils]: 12: Hoare triple {31#false} [69] L27-2-->L27-3: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {31#false} is VALID [2022-04-15 04:22:20,727 INFO L272 TraceCheckUtils]: 13: Hoare triple {31#false} [74] L27-3-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ v_main_~y~0_8 (* (- 2) v_main_~x~0_8) (* v_main_~y~0_8 v_main_~y~0_8)) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {31#false} is VALID [2022-04-15 04:22:20,727 INFO L290 TraceCheckUtils]: 14: Hoare triple {31#false} [78] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {31#false} is VALID [2022-04-15 04:22:20,728 INFO L290 TraceCheckUtils]: 15: Hoare triple {31#false} [82] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {31#false} is VALID [2022-04-15 04:22:20,728 INFO L290 TraceCheckUtils]: 16: Hoare triple {31#false} [84] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {31#false} is VALID [2022-04-15 04:22:20,728 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 04:22:20,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 04:22:20,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422869001] [2022-04-15 04:22:20,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422869001] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 04:22:20,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 04:22:20,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-15 04:22:20,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796046190] [2022-04-15 04:22:20,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 04:22:20,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-04-15 04:22:20,740 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 04:22:20,742 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-15 04:22:20,766 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 04:22:20,766 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-15 04:22:20,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-15 04:22:20,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-15 04:22:20,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-15 04:22:20,786 INFO L87 Difference]: Start difference. First operand has 27 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-15 04:22:20,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 04:22:20,875 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2022-04-15 04:22:20,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-15 04:22:20,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-04-15 04:22:20,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 04:22:20,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-15 04:22:20,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2022-04-15 04:22:20,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-15 04:22:20,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2022-04-15 04:22:20,892 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 56 transitions. [2022-04-15 04:22:20,976 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 56 edges. 56 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 04:22:20,981 INFO L225 Difference]: With dead ends: 45 [2022-04-15 04:22:20,981 INFO L226 Difference]: Without dead ends: 22 [2022-04-15 04:22:20,983 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-15 04:22:20,985 INFO L913 BasicCegarLoop]: 25 mSDtfsCounter, 15 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-15 04:22:20,985 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 28 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-15 04:22:20,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-04-15 04:22:21,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-04-15 04:22:21,008 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 04:22:21,009 INFO L82 GeneralOperation]: Start isEquivalent. First operand 22 states. Second operand has 22 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 04:22:21,009 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand has 22 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 04:22:21,010 INFO L87 Difference]: Start difference. First operand 22 states. Second operand has 22 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 04:22:21,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 04:22:21,019 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2022-04-15 04:22:21,020 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-04-15 04:22:21,020 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 04:22:21,021 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 04:22:21,023 INFO L74 IsIncluded]: Start isIncluded. First operand has 22 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 22 states. [2022-04-15 04:22:21,023 INFO L87 Difference]: Start difference. First operand has 22 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 22 states. [2022-04-15 04:22:21,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 04:22:21,026 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2022-04-15 04:22:21,026 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-04-15 04:22:21,026 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 04:22:21,026 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 04:22:21,026 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 04:22:21,026 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 04:22:21,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 04:22:21,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2022-04-15 04:22:21,029 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 17 [2022-04-15 04:22:21,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 04:22:21,029 INFO L478 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2022-04-15 04:22:21,030 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-15 04:22:21,030 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-04-15 04:22:21,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-15 04:22:21,030 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 04:22:21,030 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 04:22:21,031 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-15 04:22:21,031 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 04:22:21,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 04:22:21,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1396244096, now seen corresponding path program 1 times [2022-04-15 04:22:21,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 04:22:21,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727733676] [2022-04-15 04:22:21,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 04:22:21,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 04:22:21,056 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-15 04:22:21,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1547903584] [2022-04-15 04:22:21,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 04:22:21,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 04:22:21,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 04:22:21,064 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 04:22:21,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-15 04:22:21,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 04:22:21,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-15 04:22:21,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 04:22:21,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-15 04:22:21,255 INFO L272 TraceCheckUtils]: 0: Hoare triple {177#true} [60] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {177#true} is VALID [2022-04-15 04:22:21,256 INFO L290 TraceCheckUtils]: 1: Hoare triple {177#true} [62] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {177#true} is VALID [2022-04-15 04:22:21,256 INFO L290 TraceCheckUtils]: 2: Hoare triple {177#true} [65] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {177#true} is VALID [2022-04-15 04:22:21,256 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {177#true} {177#true} [87] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {177#true} is VALID [2022-04-15 04:22:21,256 INFO L272 TraceCheckUtils]: 4: Hoare triple {177#true} [61] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {177#true} is VALID [2022-04-15 04:22:21,257 INFO L290 TraceCheckUtils]: 5: Hoare triple {177#true} [64] mainENTRY-->L21: Formula: (and (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_2, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {177#true} is VALID [2022-04-15 04:22:21,257 INFO L272 TraceCheckUtils]: 6: Hoare triple {177#true} [66] L21-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_7) (<= v_main_~k~0_7 20)) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {177#true} is VALID [2022-04-15 04:22:21,257 INFO L290 TraceCheckUtils]: 7: Hoare triple {177#true} [68] assume_abort_if_notENTRY-->L7: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {177#true} is VALID [2022-04-15 04:22:21,257 INFO L290 TraceCheckUtils]: 8: Hoare triple {177#true} [73] L7-->L7-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {177#true} is VALID [2022-04-15 04:22:21,257 INFO L290 TraceCheckUtils]: 9: Hoare triple {177#true} [76] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {177#true} is VALID [2022-04-15 04:22:21,257 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {177#true} {177#true} [88] assume_abort_if_notEXIT-->L21-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_7) (<= v_main_~k~0_7 20)) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {177#true} is VALID [2022-04-15 04:22:21,258 INFO L290 TraceCheckUtils]: 11: Hoare triple {177#true} [67] L21-1-->L27-2: Formula: (and (= v_main_~c~0_5 0) (= v_main_~y~0_5 0) (= v_main_~x~0_5 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_5, main_~y~0=v_main_~y~0_5, main_~x~0=v_main_~x~0_5} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {215#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-15 04:22:21,258 INFO L290 TraceCheckUtils]: 12: Hoare triple {215#(and (= main_~x~0 0) (= main_~y~0 0))} [71] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {215#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-15 04:22:21,259 INFO L272 TraceCheckUtils]: 13: Hoare triple {215#(and (= main_~x~0 0) (= main_~y~0 0))} [75] L28-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ v_main_~y~0_7 (* v_main_~y~0_7 v_main_~y~0_7) (* (- 2) v_main_~x~0_7)) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {222#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-15 04:22:21,259 INFO L290 TraceCheckUtils]: 14: Hoare triple {222#(<= 1 |__VERIFIER_assert_#in~cond|)} [78] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {226#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-15 04:22:21,260 INFO L290 TraceCheckUtils]: 15: Hoare triple {226#(<= 1 __VERIFIER_assert_~cond)} [82] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {178#false} is VALID [2022-04-15 04:22:21,261 INFO L290 TraceCheckUtils]: 16: Hoare triple {178#false} [84] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {178#false} is VALID [2022-04-15 04:22:21,261 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 04:22:21,261 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-15 04:22:21,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 04:22:21,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727733676] [2022-04-15 04:22:21,262 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-15 04:22:21,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547903584] [2022-04-15 04:22:21,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547903584] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 04:22:21,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 04:22:21,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-15 04:22:21,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948374641] [2022-04-15 04:22:21,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 04:22:21,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-04-15 04:22:21,269 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 04:22:21,269 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-15 04:22:21,282 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 04:22:21,282 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-15 04:22:21,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-15 04:22:21,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-15 04:22:21,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-15 04:22:21,283 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-15 04:22:21,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 04:22:21,379 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2022-04-15 04:22:21,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-15 04:22:21,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-04-15 04:22:21,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 04:22:21,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-15 04:22:21,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2022-04-15 04:22:21,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-15 04:22:21,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2022-04-15 04:22:21,388 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 34 transitions. [2022-04-15 04:22:21,412 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 04:22:21,415 INFO L225 Difference]: With dead ends: 32 [2022-04-15 04:22:21,415 INFO L226 Difference]: Without dead ends: 29 [2022-04-15 04:22:21,415 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-15 04:22:21,417 INFO L913 BasicCegarLoop]: 20 mSDtfsCounter, 6 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-15 04:22:21,417 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 72 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-15 04:22:21,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-04-15 04:22:21,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-04-15 04:22:21,423 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 04:22:21,423 INFO L82 GeneralOperation]: Start isEquivalent. First operand 29 states. Second operand has 29 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-15 04:22:21,424 INFO L74 IsIncluded]: Start isIncluded. First operand 29 states. Second operand has 29 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-15 04:22:21,424 INFO L87 Difference]: Start difference. First operand 29 states. Second operand has 29 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-15 04:22:21,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 04:22:21,426 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2022-04-15 04:22:21,427 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2022-04-15 04:22:21,427 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 04:22:21,427 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 04:22:21,428 INFO L74 IsIncluded]: Start isIncluded. First operand has 29 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 29 states. [2022-04-15 04:22:21,428 INFO L87 Difference]: Start difference. First operand has 29 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 29 states. [2022-04-15 04:22:21,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 04:22:21,433 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2022-04-15 04:22:21,433 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2022-04-15 04:22:21,433 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 04:22:21,433 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 04:22:21,433 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 04:22:21,433 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 04:22:21,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-15 04:22:21,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2022-04-15 04:22:21,438 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 17 [2022-04-15 04:22:21,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 04:22:21,439 INFO L478 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2022-04-15 04:22:21,439 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-15 04:22:21,439 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2022-04-15 04:22:21,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-04-15 04:22:21,441 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 04:22:21,441 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 04:22:21,460 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-15 04:22:21,660 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 04:22:21,660 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 04:22:21,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 04:22:21,661 INFO L85 PathProgramCache]: Analyzing trace with hash 279144821, now seen corresponding path program 1 times [2022-04-15 04:22:21,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 04:22:21,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286008986] [2022-04-15 04:22:21,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 04:22:21,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 04:22:21,686 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-15 04:22:21,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1607850187] [2022-04-15 04:22:21,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 04:22:21,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 04:22:21,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 04:22:21,689 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-15 04:22:21,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-15 04:22:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 04:22:21,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 11 conjunts are in the unsatisfiable core [2022-04-15 04:22:21,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 04:22:21,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-15 04:22:21,851 INFO L272 TraceCheckUtils]: 0: Hoare triple {380#true} [60] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {380#true} is VALID [2022-04-15 04:22:21,852 INFO L290 TraceCheckUtils]: 1: Hoare triple {380#true} [62] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {380#true} is VALID [2022-04-15 04:22:21,852 INFO L290 TraceCheckUtils]: 2: Hoare triple {380#true} [65] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {380#true} is VALID [2022-04-15 04:22:21,852 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {380#true} {380#true} [87] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {380#true} is VALID [2022-04-15 04:22:21,852 INFO L272 TraceCheckUtils]: 4: Hoare triple {380#true} [61] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {380#true} is VALID [2022-04-15 04:22:21,853 INFO L290 TraceCheckUtils]: 5: Hoare triple {380#true} [64] mainENTRY-->L21: Formula: (and (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_2, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {380#true} is VALID [2022-04-15 04:22:21,853 INFO L272 TraceCheckUtils]: 6: Hoare triple {380#true} [66] L21-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_7) (<= v_main_~k~0_7 20)) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {380#true} is VALID [2022-04-15 04:22:21,853 INFO L290 TraceCheckUtils]: 7: Hoare triple {380#true} [68] assume_abort_if_notENTRY-->L7: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {380#true} is VALID [2022-04-15 04:22:21,853 INFO L290 TraceCheckUtils]: 8: Hoare triple {380#true} [73] L7-->L7-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {380#true} is VALID [2022-04-15 04:22:21,853 INFO L290 TraceCheckUtils]: 9: Hoare triple {380#true} [76] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {380#true} is VALID [2022-04-15 04:22:21,853 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {380#true} {380#true} [88] assume_abort_if_notEXIT-->L21-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_7) (<= v_main_~k~0_7 20)) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {380#true} is VALID [2022-04-15 04:22:21,856 INFO L290 TraceCheckUtils]: 11: Hoare triple {380#true} [67] L21-1-->L27-2: Formula: (and (= v_main_~c~0_5 0) (= v_main_~y~0_5 0) (= v_main_~x~0_5 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_5, main_~y~0=v_main_~y~0_5, main_~x~0=v_main_~x~0_5} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {418#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-15 04:22:21,856 INFO L290 TraceCheckUtils]: 12: Hoare triple {418#(and (= main_~x~0 0) (= main_~y~0 0))} [71] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {418#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-15 04:22:21,856 INFO L272 TraceCheckUtils]: 13: Hoare triple {418#(and (= main_~x~0 0) (= main_~y~0 0))} [75] L28-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ v_main_~y~0_7 (* v_main_~y~0_7 v_main_~y~0_7) (* (- 2) v_main_~x~0_7)) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {380#true} is VALID [2022-04-15 04:22:21,856 INFO L290 TraceCheckUtils]: 14: Hoare triple {380#true} [78] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {380#true} is VALID [2022-04-15 04:22:21,856 INFO L290 TraceCheckUtils]: 15: Hoare triple {380#true} [83] L10-->L10-2: Formula: (not (= v___VERIFIER_assert_~cond_3 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {380#true} is VALID [2022-04-15 04:22:21,857 INFO L290 TraceCheckUtils]: 16: Hoare triple {380#true} [86] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {380#true} is VALID [2022-04-15 04:22:21,857 INFO L284 TraceCheckUtils]: 17: Hoare quadruple {380#true} {418#(and (= main_~x~0 0) (= main_~y~0 0))} [90] __VERIFIER_assertEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (= (+ v_main_~y~0_7 (* v_main_~y~0_7 v_main_~y~0_7) (* (- 2) v_main_~x~0_7)) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {418#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-15 04:22:21,858 INFO L290 TraceCheckUtils]: 18: Hoare triple {418#(and (= main_~x~0 0) (= main_~y~0 0))} [80] L28-1-->L27-2: Formula: (and (= v_main_~x~0_3 (+ v_main_~x~0_4 v_main_~y~0_3)) (= v_main_~y~0_3 (+ v_main_~y~0_4 1)) (< v_main_~c~0_4 v_main_~k~0_6) (= v_main_~c~0_3 (+ v_main_~c~0_4 1))) InVars {main_~y~0=v_main_~y~0_4, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_4, main_~k~0=v_main_~k~0_6} OutVars{main_~y~0=v_main_~y~0_3, main_~c~0=v_main_~c~0_3, main_~x~0=v_main_~x~0_3, main_~k~0=v_main_~k~0_6} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {440#(and (= main_~y~0 1) (= (+ main_~x~0 (* (- 1) main_~y~0)) 0))} is VALID [2022-04-15 04:22:21,858 INFO L290 TraceCheckUtils]: 19: Hoare triple {440#(and (= main_~y~0 1) (= (+ main_~x~0 (* (- 1) main_~y~0)) 0))} [71] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {440#(and (= main_~y~0 1) (= (+ main_~x~0 (* (- 1) main_~y~0)) 0))} is VALID [2022-04-15 04:22:21,859 INFO L272 TraceCheckUtils]: 20: Hoare triple {440#(and (= main_~y~0 1) (= (+ main_~x~0 (* (- 1) main_~y~0)) 0))} [75] L28-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ v_main_~y~0_7 (* v_main_~y~0_7 v_main_~y~0_7) (* (- 2) v_main_~x~0_7)) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {447#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-15 04:22:21,859 INFO L290 TraceCheckUtils]: 21: Hoare triple {447#(<= 1 |__VERIFIER_assert_#in~cond|)} [78] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {451#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-15 04:22:21,860 INFO L290 TraceCheckUtils]: 22: Hoare triple {451#(<= 1 __VERIFIER_assert_~cond)} [82] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {381#false} is VALID [2022-04-15 04:22:21,860 INFO L290 TraceCheckUtils]: 23: Hoare triple {381#false} [84] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {381#false} is VALID [2022-04-15 04:22:21,860 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 04:22:21,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-15 04:22:22,015 INFO L290 TraceCheckUtils]: 23: Hoare triple {381#false} [84] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {381#false} is VALID [2022-04-15 04:22:22,016 INFO L290 TraceCheckUtils]: 22: Hoare triple {451#(<= 1 __VERIFIER_assert_~cond)} [82] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {381#false} is VALID [2022-04-15 04:22:22,017 INFO L290 TraceCheckUtils]: 21: Hoare triple {447#(<= 1 |__VERIFIER_assert_#in~cond|)} [78] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {451#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-15 04:22:22,017 INFO L272 TraceCheckUtils]: 20: Hoare triple {467#(= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0)))} [75] L28-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ v_main_~y~0_7 (* v_main_~y~0_7 v_main_~y~0_7) (* (- 2) v_main_~x~0_7)) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {447#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-15 04:22:22,018 INFO L290 TraceCheckUtils]: 19: Hoare triple {467#(= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0)))} [71] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {467#(= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0)))} is VALID [2022-04-15 04:22:22,019 INFO L290 TraceCheckUtils]: 18: Hoare triple {467#(= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0)))} [80] L28-1-->L27-2: Formula: (and (= v_main_~x~0_3 (+ v_main_~x~0_4 v_main_~y~0_3)) (= v_main_~y~0_3 (+ v_main_~y~0_4 1)) (< v_main_~c~0_4 v_main_~k~0_6) (= v_main_~c~0_3 (+ v_main_~c~0_4 1))) InVars {main_~y~0=v_main_~y~0_4, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_4, main_~k~0=v_main_~k~0_6} OutVars{main_~y~0=v_main_~y~0_3, main_~c~0=v_main_~c~0_3, main_~x~0=v_main_~x~0_3, main_~k~0=v_main_~k~0_6} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {467#(= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0)))} is VALID [2022-04-15 04:22:22,020 INFO L284 TraceCheckUtils]: 17: Hoare quadruple {380#true} {467#(= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0)))} [90] __VERIFIER_assertEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (= (+ v_main_~y~0_7 (* v_main_~y~0_7 v_main_~y~0_7) (* (- 2) v_main_~x~0_7)) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {467#(= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0)))} is VALID [2022-04-15 04:22:22,020 INFO L290 TraceCheckUtils]: 16: Hoare triple {380#true} [86] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {380#true} is VALID [2022-04-15 04:22:22,020 INFO L290 TraceCheckUtils]: 15: Hoare triple {380#true} [83] L10-->L10-2: Formula: (not (= v___VERIFIER_assert_~cond_3 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {380#true} is VALID [2022-04-15 04:22:22,020 INFO L290 TraceCheckUtils]: 14: Hoare triple {380#true} [78] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {380#true} is VALID [2022-04-15 04:22:22,021 INFO L272 TraceCheckUtils]: 13: Hoare triple {467#(= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0)))} [75] L28-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ v_main_~y~0_7 (* v_main_~y~0_7 v_main_~y~0_7) (* (- 2) v_main_~x~0_7)) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {380#true} is VALID [2022-04-15 04:22:22,021 INFO L290 TraceCheckUtils]: 12: Hoare triple {467#(= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0)))} [71] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {467#(= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0)))} is VALID [2022-04-15 04:22:22,021 INFO L290 TraceCheckUtils]: 11: Hoare triple {380#true} [67] L21-1-->L27-2: Formula: (and (= v_main_~c~0_5 0) (= v_main_~y~0_5 0) (= v_main_~x~0_5 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_5, main_~y~0=v_main_~y~0_5, main_~x~0=v_main_~x~0_5} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {467#(= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0)))} is VALID [2022-04-15 04:22:22,022 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {380#true} {380#true} [88] assume_abort_if_notEXIT-->L21-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_7) (<= v_main_~k~0_7 20)) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {380#true} is VALID [2022-04-15 04:22:22,022 INFO L290 TraceCheckUtils]: 9: Hoare triple {380#true} [76] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {380#true} is VALID [2022-04-15 04:22:22,022 INFO L290 TraceCheckUtils]: 8: Hoare triple {380#true} [73] L7-->L7-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {380#true} is VALID [2022-04-15 04:22:22,022 INFO L290 TraceCheckUtils]: 7: Hoare triple {380#true} [68] assume_abort_if_notENTRY-->L7: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {380#true} is VALID [2022-04-15 04:22:22,022 INFO L272 TraceCheckUtils]: 6: Hoare triple {380#true} [66] L21-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_7) (<= v_main_~k~0_7 20)) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {380#true} is VALID [2022-04-15 04:22:22,022 INFO L290 TraceCheckUtils]: 5: Hoare triple {380#true} [64] mainENTRY-->L21: Formula: (and (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_2, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {380#true} is VALID [2022-04-15 04:22:22,023 INFO L272 TraceCheckUtils]: 4: Hoare triple {380#true} [61] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {380#true} is VALID [2022-04-15 04:22:22,023 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {380#true} {380#true} [87] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {380#true} is VALID [2022-04-15 04:22:22,023 INFO L290 TraceCheckUtils]: 2: Hoare triple {380#true} [65] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {380#true} is VALID [2022-04-15 04:22:22,023 INFO L290 TraceCheckUtils]: 1: Hoare triple {380#true} [62] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {380#true} is VALID [2022-04-15 04:22:22,023 INFO L272 TraceCheckUtils]: 0: Hoare triple {380#true} [60] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {380#true} is VALID [2022-04-15 04:22:22,024 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-15 04:22:22,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 04:22:22,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286008986] [2022-04-15 04:22:22,024 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-15 04:22:22,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607850187] [2022-04-15 04:22:22,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607850187] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-15 04:22:22,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-15 04:22:22,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2022-04-15 04:22:22,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566590407] [2022-04-15 04:22:22,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 04:22:22,025 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2022-04-15 04:22:22,025 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 04:22:22,025 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-15 04:22:22,042 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 04:22:22,042 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-15 04:22:22,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-15 04:22:22,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-15 04:22:22,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-15 04:22:22,043 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-15 04:22:22,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 04:22:22,110 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2022-04-15 04:22:22,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-15 04:22:22,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2022-04-15 04:22:22,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 04:22:22,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-15 04:22:22,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2022-04-15 04:22:22,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-15 04:22:22,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2022-04-15 04:22:22,113 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 23 transitions. [2022-04-15 04:22:22,207 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 04:22:22,207 INFO L225 Difference]: With dead ends: 29 [2022-04-15 04:22:22,207 INFO L226 Difference]: Without dead ends: 0 [2022-04-15 04:22:22,208 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-04-15 04:22:22,209 INFO L913 BasicCegarLoop]: 17 mSDtfsCounter, 6 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-15 04:22:22,209 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 56 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-15 04:22:22,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-15 04:22:22,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-15 04:22:22,210 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 04:22:22,210 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-15 04:22:22,210 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-15 04:22:22,210 INFO L87 Difference]: Start difference. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-15 04:22:22,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 04:22:22,210 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-15 04:22:22,210 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-15 04:22:22,210 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 04:22:22,210 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 04:22:22,210 INFO L74 IsIncluded]: Start isIncluded. First operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 0 states. [2022-04-15 04:22:22,211 INFO L87 Difference]: Start difference. First operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 0 states. [2022-04-15 04:22:22,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 04:22:22,211 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-15 04:22:22,211 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-15 04:22:22,211 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 04:22:22,211 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 04:22:22,211 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 04:22:22,211 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 04:22:22,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-15 04:22:22,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-15 04:22:22,211 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2022-04-15 04:22:22,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 04:22:22,212 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-15 04:22:22,212 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-15 04:22:22,212 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-15 04:22:22,212 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 04:22:22,214 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-15 04:22:22,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-15 04:22:22,423 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-04-15 04:22:22,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-04-15 04:22:22,460 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-04-15 04:22:22,460 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2022-04-15 04:22:22,460 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2022-04-15 04:22:22,460 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-04-15 04:22:22,460 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-04-15 04:22:22,460 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-04-15 04:22:22,460 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-04-15 04:22:22,460 INFO L885 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 6 8) the Hoare annotation is: true [2022-04-15 04:22:22,460 INFO L882 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-04-15 04:22:22,460 INFO L882 garLoopResultBuilder]: For program point L7-2(lines 6 8) no Hoare annotation was computed. [2022-04-15 04:22:22,461 INFO L882 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed. [2022-04-15 04:22:22,461 INFO L885 garLoopResultBuilder]: At program point mainENTRY(lines 17 40) the Hoare annotation is: true [2022-04-15 04:22:22,461 INFO L885 garLoopResultBuilder]: At program point L21(line 21) the Hoare annotation is: true [2022-04-15 04:22:22,461 INFO L882 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2022-04-15 04:22:22,461 INFO L878 garLoopResultBuilder]: At program point L27-2(lines 27 36) the Hoare annotation is: (= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0))) [2022-04-15 04:22:22,461 INFO L878 garLoopResultBuilder]: At program point L27-3(lines 27 36) the Hoare annotation is: (= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0))) [2022-04-15 04:22:22,461 INFO L878 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0))) [2022-04-15 04:22:22,461 INFO L882 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2022-04-15 04:22:22,461 INFO L882 garLoopResultBuilder]: For program point L28-1(lines 27 36) no Hoare annotation was computed. [2022-04-15 04:22:22,461 INFO L882 garLoopResultBuilder]: For program point mainFINAL(lines 17 40) no Hoare annotation was computed. [2022-04-15 04:22:22,461 INFO L882 garLoopResultBuilder]: For program point mainEXIT(lines 17 40) no Hoare annotation was computed. [2022-04-15 04:22:22,461 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 9 15) the Hoare annotation is: true [2022-04-15 04:22:22,462 INFO L882 garLoopResultBuilder]: For program point L10(lines 10 13) no Hoare annotation was computed. [2022-04-15 04:22:22,462 INFO L882 garLoopResultBuilder]: For program point L11(lines 11 12) no Hoare annotation was computed. [2022-04-15 04:22:22,462 INFO L882 garLoopResultBuilder]: For program point L10-2(lines 9 15) no Hoare annotation was computed. [2022-04-15 04:22:22,462 INFO L882 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2022-04-15 04:22:22,462 INFO L882 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed. [2022-04-15 04:22:22,464 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-04-15 04:22:22,465 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-15 04:22:22,468 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-15 04:22:22,468 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-15 04:22:22,468 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2022-04-15 04:22:22,468 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-15 04:22:22,468 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-15 04:22:22,468 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-15 04:22:22,468 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2022-04-15 04:22:22,468 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2022-04-15 04:22:22,468 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-15 04:22:22,468 WARN L170 areAnnotationChecker]: L7-2 has no Hoare annotation [2022-04-15 04:22:22,468 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2022-04-15 04:22:22,468 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2022-04-15 04:22:22,468 WARN L170 areAnnotationChecker]: L10-2 has no Hoare annotation [2022-04-15 04:22:22,469 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2022-04-15 04:22:22,469 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-15 04:22:22,469 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-15 04:22:22,469 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2022-04-15 04:22:22,469 WARN L170 areAnnotationChecker]: L28-1 has no Hoare annotation [2022-04-15 04:22:22,469 WARN L170 areAnnotationChecker]: L28-1 has no Hoare annotation [2022-04-15 04:22:22,469 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2022-04-15 04:22:22,470 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-15 04:22:22,470 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-15 04:22:22,470 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-15 04:22:22,470 INFO L163 areAnnotationChecker]: CFG has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-15 04:22:22,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 04:22:22 BasicIcfg [2022-04-15 04:22:22,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-15 04:22:22,478 INFO L158 Benchmark]: Toolchain (without parser) took 2555.01ms. Allocated memory was 204.5MB in the beginning and 311.4MB in the end (delta: 107.0MB). Free memory was 149.9MB in the beginning and 230.7MB in the end (delta: -80.9MB). Peak memory consumption was 27.6MB. Max. memory is 8.0GB. [2022-04-15 04:22:22,478 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 204.5MB. Free memory is still 166.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-15 04:22:22,478 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.22ms. Allocated memory is still 204.5MB. Free memory was 149.7MB in the beginning and 180.4MB in the end (delta: -30.7MB). Peak memory consumption was 9.3MB. Max. memory is 8.0GB. [2022-04-15 04:22:22,478 INFO L158 Benchmark]: Boogie Preprocessor took 24.07ms. Allocated memory is still 204.5MB. Free memory was 180.4MB in the beginning and 178.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-15 04:22:22,478 INFO L158 Benchmark]: RCFGBuilder took 193.64ms. Allocated memory is still 204.5MB. Free memory was 178.9MB in the beginning and 168.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-15 04:22:22,479 INFO L158 Benchmark]: IcfgTransformer took 18.67ms. Allocated memory is still 204.5MB. Free memory was 168.4MB in the beginning and 166.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-15 04:22:22,479 INFO L158 Benchmark]: TraceAbstraction took 2062.18ms. Allocated memory was 204.5MB in the beginning and 311.4MB in the end (delta: 107.0MB). Free memory was 166.3MB in the beginning and 230.7MB in the end (delta: -64.5MB). Peak memory consumption was 43.5MB. Max. memory is 8.0GB. [2022-04-15 04:22:22,480 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 204.5MB. Free memory is still 166.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 251.22ms. Allocated memory is still 204.5MB. Free memory was 149.7MB in the beginning and 180.4MB in the end (delta: -30.7MB). Peak memory consumption was 9.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.07ms. Allocated memory is still 204.5MB. Free memory was 180.4MB in the beginning and 178.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 193.64ms. Allocated memory is still 204.5MB. Free memory was 178.9MB in the beginning and 168.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 18.67ms. Allocated memory is still 204.5MB. Free memory was 168.4MB in the beginning and 166.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 2062.18ms. Allocated memory was 204.5MB in the beginning and 311.4MB in the end (delta: 107.0MB). Free memory was 166.3MB in the beginning and 230.7MB in the end (delta: -64.5MB). Peak memory consumption was 43.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 156 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 94 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 62 mSDtfsCounter, 42 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 59 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=2, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 15 PreInvPairs, 21 NumberOfFragments, 40 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 42 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 186 SizeOfPredicates, 2 NumberOfNonLiveVariables, 153 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 6/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: x * 2 == y + y * y RESULT: Ultimate proved your program to be correct! [2022-04-15 04:22:22,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...