/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/array-fpi/ss1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-30 22:36:14,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-30 22:36:14,782 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-30 22:36:14,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-30 22:36:14,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-30 22:36:14,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-30 22:36:14,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-30 22:36:14,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-30 22:36:14,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-30 22:36:14,804 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-30 22:36:14,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-30 22:36:14,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-30 22:36:14,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-30 22:36:14,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-30 22:36:14,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-30 22:36:14,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-30 22:36:14,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-30 22:36:14,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-30 22:36:14,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-30 22:36:14,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-30 22:36:14,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-30 22:36:14,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-30 22:36:14,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-30 22:36:14,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-30 22:36:14,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-03-30 22:36:14,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-30 22:36:14,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-30 22:36:14,820 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-30 22:36:14,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-30 22:36:14,821 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-30 22:36:14,821 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-30 22:36:14,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-30 22:36:14,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-30 22:36:14,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-30 22:36:14,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-30 22:36:14,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-30 22:36:14,828 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-03-30 22:36:14,845 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-30 22:36:14,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-30 22:36:14,846 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-30 22:36:14,846 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-30 22:36:14,846 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-30 22:36:14,846 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-30 22:36:14,847 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-30 22:36:14,847 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-30 22:36:14,847 INFO L138 SettingsManager]: * Use SBE=true [2023-03-30 22:36:14,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-30 22:36:14,847 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-30 22:36:14,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-30 22:36:14,847 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-30 22:36:14,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-30 22:36:14,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-30 22:36:14,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-30 22:36:14,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-30 22:36:14,848 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-30 22:36:14,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-30 22:36:14,848 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-30 22:36:14,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-30 22:36:14,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-30 22:36:14,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-30 22:36:14,848 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-30 22:36:14,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-30 22:36:14,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-30 22:36:14,848 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-30 22:36:14,848 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-30 22:36:14,848 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-30 22:36:14,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-30 22:36:14,849 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-30 22:36:14,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-30 22:36:14,849 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-30 22:36:14,849 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-30 22:36:14,849 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-30 22:36:14,849 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-30 22:36:15,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-30 22:36:15,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-30 22:36:15,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-30 22:36:15,053 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-30 22:36:15,053 INFO L275 PluginConnector]: CDTParser initialized [2023-03-30 22:36:15,054 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ss1.c [2023-03-30 22:36:16,084 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-30 22:36:16,211 INFO L351 CDTParser]: Found 1 translation units. [2023-03-30 22:36:16,211 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ss1.c [2023-03-30 22:36:16,216 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/722b711cf/ad7ce3d627cc47f7b6919bbafccf4599/FLAG1a100623a [2023-03-30 22:36:16,227 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/722b711cf/ad7ce3d627cc47f7b6919bbafccf4599 [2023-03-30 22:36:16,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-30 22:36:16,230 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-30 22:36:16,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-30 22:36:16,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-30 22:36:16,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-30 22:36:16,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.03 10:36:16" (1/1) ... [2023-03-30 22:36:16,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20c8a95a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:36:16, skipping insertion in model container [2023-03-30 22:36:16,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.03 10:36:16" (1/1) ... [2023-03-30 22:36:16,239 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-30 22:36:16,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-30 22:36:16,372 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ss1.c[586,599] [2023-03-30 22:36:16,392 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-30 22:36:16,404 INFO L203 MainTranslator]: Completed pre-run [2023-03-30 22:36:16,417 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ss1.c[586,599] [2023-03-30 22:36:16,430 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-30 22:36:16,443 INFO L208 MainTranslator]: Completed translation [2023-03-30 22:36:16,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:36:16 WrapperNode [2023-03-30 22:36:16,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-30 22:36:16,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-30 22:36:16,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-30 22:36:16,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-30 22:36:16,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:36:16" (1/1) ... [2023-03-30 22:36:16,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:36:16" (1/1) ... [2023-03-30 22:36:16,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:36:16" (1/1) ... [2023-03-30 22:36:16,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:36:16" (1/1) ... [2023-03-30 22:36:16,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:36:16" (1/1) ... [2023-03-30 22:36:16,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:36:16" (1/1) ... [2023-03-30 22:36:16,480 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:36:16" (1/1) ... [2023-03-30 22:36:16,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:36:16" (1/1) ... [2023-03-30 22:36:16,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-30 22:36:16,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-30 22:36:16,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-30 22:36:16,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-30 22:36:16,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:36:16" (1/1) ... [2023-03-30 22:36:16,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-30 22:36:16,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:36:16,512 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) [2023-03-30 22:36:16,519 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 [2023-03-30 22:36:16,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-30 22:36:16,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-30 22:36:16,543 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-30 22:36:16,543 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-30 22:36:16,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-03-30 22:36:16,543 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-30 22:36:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-30 22:36:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-30 22:36:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-30 22:36:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-30 22:36:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-30 22:36:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-03-30 22:36:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-30 22:36:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-30 22:36:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-30 22:36:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-30 22:36:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-30 22:36:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-30 22:36:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-30 22:36:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-30 22:36:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-30 22:36:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-30 22:36:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-30 22:36:16,612 INFO L236 CfgBuilder]: Building ICFG [2023-03-30 22:36:16,614 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-30 22:36:16,774 INFO L277 CfgBuilder]: Performing block encoding [2023-03-30 22:36:16,779 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-30 22:36:16,779 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-03-30 22:36:16,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.03 10:36:16 BoogieIcfgContainer [2023-03-30 22:36:16,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-30 22:36:16,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-30 22:36:16,782 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-30 22:36:16,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-30 22:36:16,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.03 10:36:16" (1/3) ... [2023-03-30 22:36:16,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf8b29a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.03 10:36:16, skipping insertion in model container [2023-03-30 22:36:16,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:36:16" (2/3) ... [2023-03-30 22:36:16,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf8b29a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.03 10:36:16, skipping insertion in model container [2023-03-30 22:36:16,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.03 10:36:16" (3/3) ... [2023-03-30 22:36:16,786 INFO L112 eAbstractionObserver]: Analyzing ICFG ss1.c [2023-03-30 22:36:16,798 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-30 22:36:16,798 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-30 22:36:16,828 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-30 22:36:16,832 INFO L357 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=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5f5110eb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-30 22:36:16,833 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-30 22:36:16,836 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 28 states have internal predecessors, (39), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-03-30 22:36:16,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-03-30 22:36:16,843 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:36:16,843 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:36:16,844 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:36:16,847 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:36:16,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1106110167, now seen corresponding path program 1 times [2023-03-30 22:36:16,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:36:16,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612349664] [2023-03-30 22:36:16,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:36:16,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:36:16,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:36:16,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:36:16,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612349664] [2023-03-30 22:36:16,982 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-03-30 22:36:16,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580069663] [2023-03-30 22:36:16,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:36:16,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:36:16,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:36:16,984 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) [2023-03-30 22:36:16,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-30 22:36:17,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:36:17,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 1 conjunts are in the unsatisfiable core [2023-03-30 22:36:17,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-30 22:36:17,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-30 22:36:17,076 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-30 22:36:17,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580069663] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-30 22:36:17,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-30 22:36:17,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-30 22:36:17,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158418065] [2023-03-30 22:36:17,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-30 22:36:17,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-30 22:36:17,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:36:17,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-30 22:36:17,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-30 22:36:17,117 INFO L87 Difference]: Start difference. First operand has 37 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 28 states have internal predecessors, (39), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-03-30 22:36:17,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:36:17,149 INFO L93 Difference]: Finished difference Result 64 states and 83 transitions. [2023-03-30 22:36:17,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-30 22:36:17,150 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (4), 2 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 25 [2023-03-30 22:36:17,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:36:17,156 INFO L225 Difference]: With dead ends: 64 [2023-03-30 22:36:17,156 INFO L226 Difference]: Without dead ends: 30 [2023-03-30 22:36:17,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-30 22:36:17,163 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-30 22:36:17,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-30 22:36:17,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-03-30 22:36:17,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-03-30 22:36:17,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-03-30 22:36:17,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2023-03-30 22:36:17,192 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 25 [2023-03-30 22:36:17,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:36:17,192 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2023-03-30 22:36:17,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-03-30 22:36:17,193 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2023-03-30 22:36:17,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-03-30 22:36:17,194 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:36:17,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:36:17,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-03-30 22:36:17,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-03-30 22:36:17,402 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:36:17,403 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:36:17,403 INFO L85 PathProgramCache]: Analyzing trace with hash 85041813, now seen corresponding path program 1 times [2023-03-30 22:36:17,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:36:17,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105530045] [2023-03-30 22:36:17,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:36:17,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:36:17,437 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-30 22:36:17,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [188781539] [2023-03-30 22:36:17,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:36:17,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:36:17,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:36:17,439 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) [2023-03-30 22:36:17,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-30 22:36:17,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:36:17,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 3 conjunts are in the unsatisfiable core [2023-03-30 22:36:17,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-30 22:36:17,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-30 22:36:17,579 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-30 22:36:17,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:36:17,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105530045] [2023-03-30 22:36:17,579 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-30 22:36:17,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188781539] [2023-03-30 22:36:17,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188781539] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-30 22:36:17,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-30 22:36:17,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-03-30 22:36:17,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104143254] [2023-03-30 22:36:17,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-30 22:36:17,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-30 22:36:17,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:36:17,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-30 22:36:17,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-03-30 22:36:17,582 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-03-30 22:36:17,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:36:17,645 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2023-03-30 22:36:17,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-03-30 22:36:17,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2023-03-30 22:36:17,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:36:17,647 INFO L225 Difference]: With dead ends: 53 [2023-03-30 22:36:17,647 INFO L226 Difference]: Without dead ends: 38 [2023-03-30 22:36:17,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-03-30 22:36:17,648 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 25 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-30 22:36:17,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 35 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-30 22:36:17,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-03-30 22:36:17,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2023-03-30 22:36:17,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-03-30 22:36:17,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2023-03-30 22:36:17,661 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 25 [2023-03-30 22:36:17,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:36:17,661 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2023-03-30 22:36:17,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-03-30 22:36:17,662 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2023-03-30 22:36:17,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-03-30 22:36:17,663 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:36:17,663 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:36:17,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-03-30 22:36:17,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-03-30 22:36:17,871 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:36:17,871 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:36:17,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1689002269, now seen corresponding path program 1 times [2023-03-30 22:36:17,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:36:17,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499514072] [2023-03-30 22:36:17,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:36:17,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:36:17,916 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-30 22:36:17,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [737243413] [2023-03-30 22:36:17,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:36:17,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:36:17,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:36:17,919 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-30 22:36:17,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-03-30 22:36:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:36:17,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 50 conjunts are in the unsatisfiable core [2023-03-30 22:36:17,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-30 22:36:18,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-03-30 22:36:18,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-03-30 22:36:18,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-03-30 22:36:18,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2023-03-30 22:36:18,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2023-03-30 22:36:18,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2023-03-30 22:36:18,585 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-30 22:36:18,586 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-30 22:36:19,016 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-30 22:36:19,264 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-30 22:36:19,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:36:19,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499514072] [2023-03-30 22:36:19,264 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-30 22:36:19,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737243413] [2023-03-30 22:36:19,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737243413] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-30 22:36:19,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-03-30 22:36:19,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2023-03-30 22:36:19,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51232397] [2023-03-30 22:36:19,265 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-03-30 22:36:19,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-03-30 22:36:19,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:36:19,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-03-30 22:36:19,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=1064, Unknown=0, NotChecked=0, Total=1260 [2023-03-30 22:36:19,267 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 36 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 32 states have internal predecessors, (50), 5 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-03-30 22:36:20,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:36:20,363 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions. [2023-03-30 22:36:20,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-03-30 22:36:20,363 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 32 states have internal predecessors, (50), 5 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 33 [2023-03-30 22:36:20,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:36:20,364 INFO L225 Difference]: With dead ends: 65 [2023-03-30 22:36:20,364 INFO L226 Difference]: Without dead ends: 51 [2023-03-30 22:36:20,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=325, Invalid=1745, Unknown=0, NotChecked=0, Total=2070 [2023-03-30 22:36:20,365 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 37 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-03-30 22:36:20,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 184 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-03-30 22:36:20,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-03-30 22:36:20,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2023-03-30 22:36:20,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 41 states have (on average 1.170731707317073) internal successors, (48), 41 states have internal predecessors, (48), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-03-30 22:36:20,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2023-03-30 22:36:20,372 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 33 [2023-03-30 22:36:20,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:36:20,372 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2023-03-30 22:36:20,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 32 states have internal predecessors, (50), 5 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-03-30 22:36:20,373 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2023-03-30 22:36:20,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-03-30 22:36:20,373 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:36:20,373 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:36:20,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-03-30 22:36:20,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:36:20,581 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:36:20,581 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:36:20,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1297741857, now seen corresponding path program 2 times [2023-03-30 22:36:20,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:36:20,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966003484] [2023-03-30 22:36:20,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:36:20,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:36:20,607 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-30 22:36:20,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1698184983] [2023-03-30 22:36:20,607 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-03-30 22:36:20,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:36:20,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:36:20,614 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-30 22:36:20,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-03-30 22:36:20,666 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-03-30 22:36:20,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-30 22:36:20,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 6 conjunts are in the unsatisfiable core [2023-03-30 22:36:20,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-30 22:36:20,698 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-03-30 22:36:20,698 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-30 22:36:20,726 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-03-30 22:36:20,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:36:20,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966003484] [2023-03-30 22:36:20,726 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-30 22:36:20,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698184983] [2023-03-30 22:36:20,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698184983] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-30 22:36:20,726 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-03-30 22:36:20,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-03-30 22:36:20,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987096834] [2023-03-30 22:36:20,727 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-03-30 22:36:20,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-30 22:36:20,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:36:20,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-30 22:36:20,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-03-30 22:36:20,728 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 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) [2023-03-30 22:36:20,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:36:20,828 INFO L93 Difference]: Finished difference Result 92 states and 104 transitions. [2023-03-30 22:36:20,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-03-30 22:36:20,829 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 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 35 [2023-03-30 22:36:20,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:36:20,832 INFO L225 Difference]: With dead ends: 92 [2023-03-30 22:36:20,832 INFO L226 Difference]: Without dead ends: 63 [2023-03-30 22:36:20,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 60 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-03-30 22:36:20,834 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 39 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-30 22:36:20,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 89 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-30 22:36:20,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-03-30 22:36:20,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 48. [2023-03-30 22:36:20,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 41 states have (on average 1.146341463414634) internal successors, (47), 41 states have internal predecessors, (47), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-03-30 22:36:20,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2023-03-30 22:36:20,850 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 35 [2023-03-30 22:36:20,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:36:20,850 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2023-03-30 22:36:20,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 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) [2023-03-30 22:36:20,850 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2023-03-30 22:36:20,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-03-30 22:36:20,852 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:36:20,852 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:36:20,860 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-03-30 22:36:21,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:36:21,058 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:36:21,058 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:36:21,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1959243551, now seen corresponding path program 3 times [2023-03-30 22:36:21,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:36:21,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704715791] [2023-03-30 22:36:21,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:36:21,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:36:21,076 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-30 22:36:21,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1918547567] [2023-03-30 22:36:21,076 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-03-30 22:36:21,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:36:21,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:36:21,085 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-30 22:36:21,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-03-30 22:36:21,141 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-03-30 22:36:21,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-30 22:36:21,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 6 conjunts are in the unsatisfiable core [2023-03-30 22:36:21,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-30 22:36:21,180 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-03-30 22:36:21,180 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-30 22:36:21,215 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-03-30 22:36:21,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:36:21,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704715791] [2023-03-30 22:36:21,216 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-30 22:36:21,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918547567] [2023-03-30 22:36:21,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918547567] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-30 22:36:21,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-03-30 22:36:21,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-03-30 22:36:21,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531618921] [2023-03-30 22:36:21,216 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-03-30 22:36:21,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-30 22:36:21,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:36:21,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-30 22:36:21,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-03-30 22:36:21,217 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 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) [2023-03-30 22:36:21,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:36:21,317 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2023-03-30 22:36:21,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-30 22:36:21,317 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 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 35 [2023-03-30 22:36:21,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:36:21,318 INFO L225 Difference]: With dead ends: 59 [2023-03-30 22:36:21,318 INFO L226 Difference]: Without dead ends: 45 [2023-03-30 22:36:21,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 59 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2023-03-30 22:36:21,318 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 52 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-30 22:36:21,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 88 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-30 22:36:21,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-03-30 22:36:21,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2023-03-30 22:36:21,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 35 states have (on average 1.1142857142857143) internal successors, (39), 35 states have internal predecessors, (39), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-03-30 22:36:21,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2023-03-30 22:36:21,324 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 35 [2023-03-30 22:36:21,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:36:21,325 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2023-03-30 22:36:21,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 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) [2023-03-30 22:36:21,325 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2023-03-30 22:36:21,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-03-30 22:36:21,325 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:36:21,325 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:36:21,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-03-30 22:36:21,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:36:21,530 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:36:21,531 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:36:21,531 INFO L85 PathProgramCache]: Analyzing trace with hash 147208101, now seen corresponding path program 4 times [2023-03-30 22:36:21,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:36:21,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148415979] [2023-03-30 22:36:21,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:36:21,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:36:21,549 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-30 22:36:21,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1610642490] [2023-03-30 22:36:21,549 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-03-30 22:36:21,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:36:21,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:36:21,554 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-30 22:36:21,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-03-30 22:36:21,619 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-03-30 22:36:21,619 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-30 22:36:21,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 74 conjunts are in the unsatisfiable core [2023-03-30 22:36:21,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-30 22:36:21,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-03-30 22:36:21,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-03-30 22:36:21,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-03-30 22:36:21,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-03-30 22:36:21,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2023-03-30 22:36:21,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2023-03-30 22:36:21,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2023-03-30 22:36:22,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2023-03-30 22:36:22,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2023-03-30 22:36:22,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2023-03-30 22:36:22,404 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-30 22:36:22,404 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-30 22:36:29,455 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-30 22:36:29,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:36:29,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148415979] [2023-03-30 22:36:29,455 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-30 22:36:29,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610642490] [2023-03-30 22:36:29,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610642490] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-30 22:36:29,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-03-30 22:36:29,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 48 [2023-03-30 22:36:29,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220533964] [2023-03-30 22:36:29,456 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-03-30 22:36:29,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-03-30 22:36:29,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:36:29,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-03-30 22:36:29,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=2021, Unknown=0, NotChecked=0, Total=2256 [2023-03-30 22:36:29,460 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand has 48 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 46 states have internal predecessors, (62), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-03-30 22:37:17,759 WARN L223 SmtUtils]: Spent 11.49s on a formula simplification that was a NOOP. DAG size: 164 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-03-30 22:37:20,591 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse82 (* c_main_~i~0 8))) (let ((.cse13 (select |c_#memory_int| c_main_~a~0.base)) (.cse83 (+ c_main_~a~0.offset .cse82)) (.cse12 (select |c_#memory_int| |c_main_~#sum~0.base|))) (let ((.cse3 (select .cse12 |c_main_~#sum~0.offset|)) (.cse41 (select .cse13 .cse83))) (let ((.cse60 (+ c_main_~i~0 2)) (.cse44 (store |c_#memory_int| |c_main_~#sum~0.base| (store .cse12 |c_main_~#sum~0.offset| (+ .cse3 .cse41)))) (.cse38 (+ c_main_~i~0 1))) (let ((.cse37 (store .cse13 .cse83 1)) (.cse0 (<= c_~N~0 .cse38)) (.cse1 (+ (* c_~N~0 2) (* c_~N~0 c_~N~0))) (.cse46 (select .cse44 c_main_~a~0.base)) (.cse15 (< .cse60 c_~N~0)) (.cse8 (+ c_main_~a~0.offset 8)) (.cse14 (+ c_main_~a~0.offset .cse82 8))) (and (or .cse0 (= .cse1 (let ((.cse2 (select .cse13 .cse14))) (let ((.cse9 (store |c_#memory_int| |c_main_~#sum~0.base| (store .cse12 |c_main_~#sum~0.offset| (+ .cse2 .cse3))))) (let ((.cse11 (select .cse9 c_main_~a~0.base))) (let ((.cse7 (select .cse11 c_main_~a~0.offset))) (let ((.cse4 (store .cse9 c_main_~a~0.base (let ((.cse10 (store .cse11 c_main_~a~0.offset (+ .cse2 .cse3 .cse7)))) (store .cse10 .cse8 (+ (select .cse11 .cse8) (select (select (store .cse9 c_main_~a~0.base .cse10) |c_main_~#sum~0.base|) |c_main_~#sum~0.offset|))))))) (let ((.cse5 (select .cse4 |c_main_~#sum~0.base|))) (let ((.cse6 (select .cse5 |c_main_~#sum~0.offset|))) (+ .cse2 .cse3 (select (select (store .cse4 |c_main_~#sum~0.base| (store .cse5 |c_main_~#sum~0.offset| (+ .cse2 .cse3 .cse6 .cse7))) c_main_~a~0.base) .cse8) .cse6 .cse7))))))))) .cse15) (or (< 2 c_~N~0) (<= c_~N~0 1) (= .cse1 (let ((.cse16 (select .cse13 c_main_~a~0.offset))) (let ((.cse20 (select (select (store |c_#memory_int| |c_main_~#sum~0.base| (store .cse12 |c_main_~#sum~0.offset| (+ .cse16 .cse3))) c_main_~a~0.base) .cse8))) (let ((.cse22 (store |c_#memory_int| |c_main_~#sum~0.base| (store .cse12 |c_main_~#sum~0.offset| (+ .cse16 .cse3 .cse20))))) (let ((.cse24 (select .cse22 c_main_~a~0.base))) (let ((.cse19 (select .cse24 c_main_~a~0.offset))) (let ((.cse17 (store .cse22 c_main_~a~0.base (let ((.cse23 (store .cse24 c_main_~a~0.offset (+ .cse16 .cse3 .cse19 .cse20)))) (store .cse23 .cse8 (+ (select (select (store .cse22 c_main_~a~0.base .cse23) |c_main_~#sum~0.base|) |c_main_~#sum~0.offset|) (select .cse24 .cse8))))))) (let ((.cse18 (select .cse17 |c_main_~#sum~0.base|))) (let ((.cse21 (select .cse18 |c_main_~#sum~0.offset|))) (+ .cse16 (select (select (store .cse17 |c_main_~#sum~0.base| (store .cse18 |c_main_~#sum~0.offset| (+ .cse16 .cse3 .cse19 .cse20 .cse21))) c_main_~a~0.base) .cse8) .cse3 .cse19 .cse20 .cse21))))))))))) (forall ((~N~0 Int)) (or (<= ~N~0 c_main_~i~0) (= (+ (* 2 ~N~0) (* ~N~0 ~N~0)) (let ((.cse35 (store |c_#memory_int| c_main_~a~0.base .cse37))) (let ((.cse36 (select .cse35 |c_main_~#sum~0.base|))) (let ((.cse27 (select .cse37 c_main_~a~0.offset)) (.cse29 (select .cse36 |c_main_~#sum~0.offset|))) (let ((.cse25 (select (select (store .cse35 |c_main_~#sum~0.base| (store .cse36 |c_main_~#sum~0.offset| (+ .cse27 .cse29))) c_main_~a~0.base) .cse8))) (let ((.cse32 (store .cse35 |c_main_~#sum~0.base| (store .cse36 |c_main_~#sum~0.offset| (+ .cse25 .cse27 .cse29))))) (let ((.cse34 (select .cse32 c_main_~a~0.base))) (let ((.cse28 (select .cse34 c_main_~a~0.offset))) (let ((.cse30 (store .cse32 c_main_~a~0.base (let ((.cse33 (store .cse34 c_main_~a~0.offset (+ .cse25 .cse27 .cse28 .cse29)))) (store .cse33 .cse8 (+ (select (select (store .cse32 c_main_~a~0.base .cse33) |c_main_~#sum~0.base|) |c_main_~#sum~0.offset|) (select .cse34 .cse8))))))) (let ((.cse31 (select .cse30 |c_main_~#sum~0.base|))) (let ((.cse26 (select .cse31 |c_main_~#sum~0.offset|))) (+ .cse25 .cse26 .cse27 .cse28 .cse29 (select (select (store .cse30 |c_main_~#sum~0.base| (store .cse31 |c_main_~#sum~0.offset| (+ .cse25 .cse26 .cse27 .cse28 .cse29))) c_main_~a~0.base) .cse8))))))))))))) (<= ~N~0 1) (< .cse38 ~N~0) (< 2 ~N~0))) (or (= .cse1 (let ((.cse42 (select .cse46 c_main_~a~0.offset))) (let ((.cse39 (store .cse44 c_main_~a~0.base (let ((.cse45 (store .cse46 c_main_~a~0.offset (+ .cse3 .cse41 .cse42)))) (store .cse45 .cse8 (+ (select .cse46 .cse8) (select (select (store .cse44 c_main_~a~0.base .cse45) |c_main_~#sum~0.base|) |c_main_~#sum~0.offset|))))))) (let ((.cse40 (select .cse39 |c_main_~#sum~0.base|))) (let ((.cse43 (select .cse40 |c_main_~#sum~0.offset|))) (+ (select (select (store .cse39 |c_main_~#sum~0.base| (store .cse40 |c_main_~#sum~0.offset| (+ .cse3 .cse41 .cse42 .cse43))) c_main_~a~0.base) .cse8) .cse3 .cse41 .cse42 .cse43)))))) (<= c_~N~0 c_main_~i~0) (< .cse38 c_~N~0)) (forall ((~N~0 Int)) (or (<= ~N~0 .cse38) (<= ~N~0 1) (= (let ((.cse59 (store .cse37 .cse14 1))) (let ((.cse57 (store |c_#memory_int| c_main_~a~0.base .cse59))) (let ((.cse58 (select .cse57 |c_main_~#sum~0.base|))) (let ((.cse47 (select .cse58 |c_main_~#sum~0.offset|)) (.cse50 (select .cse59 c_main_~a~0.offset))) (let ((.cse52 (select (select (store .cse57 |c_main_~#sum~0.base| (store .cse58 |c_main_~#sum~0.offset| (+ .cse47 .cse50))) c_main_~a~0.base) .cse8))) (let ((.cse54 (store .cse57 |c_main_~#sum~0.base| (store .cse58 |c_main_~#sum~0.offset| (+ .cse47 .cse50 .cse52))))) (let ((.cse56 (select .cse54 c_main_~a~0.base))) (let ((.cse53 (select .cse56 c_main_~a~0.offset))) (let ((.cse48 (store .cse54 c_main_~a~0.base (let ((.cse55 (store .cse56 c_main_~a~0.offset (+ .cse47 .cse50 .cse52 .cse53)))) (store .cse55 .cse8 (+ (select .cse56 .cse8) (select (select (store .cse54 c_main_~a~0.base .cse55) |c_main_~#sum~0.base|) |c_main_~#sum~0.offset|))))))) (let ((.cse49 (select .cse48 |c_main_~#sum~0.base|))) (let ((.cse51 (select .cse49 |c_main_~#sum~0.offset|))) (+ .cse47 (select (select (store .cse48 |c_main_~#sum~0.base| (store .cse49 |c_main_~#sum~0.offset| (+ .cse47 .cse50 .cse51 .cse52 .cse53))) c_main_~a~0.base) .cse8) .cse50 .cse51 .cse52 .cse53)))))))))))) (+ (* 2 ~N~0) (* ~N~0 ~N~0))) (< 2 ~N~0) (< .cse60 ~N~0))) (or .cse0 (= .cse1 (let ((.cse63 (select .cse46 .cse14))) (let ((.cse66 (store |c_#memory_int| |c_main_~#sum~0.base| (store .cse12 |c_main_~#sum~0.offset| (+ .cse3 .cse41 .cse63))))) (let ((.cse68 (select .cse66 c_main_~a~0.base))) (let ((.cse62 (select .cse68 c_main_~a~0.offset))) (let ((.cse64 (store .cse66 c_main_~a~0.base (let ((.cse67 (store .cse68 c_main_~a~0.offset (+ .cse3 .cse62 .cse41 .cse63)))) (store .cse67 .cse8 (+ (select (select (store .cse66 c_main_~a~0.base .cse67) |c_main_~#sum~0.base|) |c_main_~#sum~0.offset|) (select .cse68 .cse8))))))) (let ((.cse65 (select .cse64 |c_main_~#sum~0.base|))) (let ((.cse61 (select .cse65 |c_main_~#sum~0.offset|))) (+ .cse3 .cse61 .cse62 .cse41 .cse63 (select (select (store .cse64 |c_main_~#sum~0.base| (store .cse65 |c_main_~#sum~0.offset| (+ .cse3 .cse61 .cse62 .cse41 .cse63))) c_main_~a~0.base) .cse8)))))))))) .cse15) (forall ((~N~0 Int)) (or (= (+ (* 2 ~N~0) (* ~N~0 ~N~0)) (let ((.cse81 (store .cse13 .cse14 1))) (let ((.cse79 (store |c_#memory_int| c_main_~a~0.base .cse81))) (let ((.cse80 (select .cse79 |c_main_~#sum~0.base|))) (let ((.cse71 (select .cse81 c_main_~a~0.offset)) (.cse72 (select .cse80 |c_main_~#sum~0.offset|))) (let ((.cse74 (select (select (store .cse79 |c_main_~#sum~0.base| (store .cse80 |c_main_~#sum~0.offset| (+ .cse71 .cse72))) c_main_~a~0.base) .cse8))) (let ((.cse76 (store .cse79 |c_main_~#sum~0.base| (store .cse80 |c_main_~#sum~0.offset| (+ .cse71 .cse72 .cse74))))) (let ((.cse78 (select .cse76 c_main_~a~0.base))) (let ((.cse75 (select .cse78 c_main_~a~0.offset))) (let ((.cse69 (store .cse76 c_main_~a~0.base (let ((.cse77 (store .cse78 c_main_~a~0.offset (+ .cse71 .cse72 .cse74 .cse75)))) (store .cse77 .cse8 (+ (select .cse78 .cse8) (select (select (store .cse76 c_main_~a~0.base .cse77) |c_main_~#sum~0.base|) |c_main_~#sum~0.offset|))))))) (let ((.cse70 (select .cse69 |c_main_~#sum~0.base|))) (let ((.cse73 (select .cse70 |c_main_~#sum~0.offset|))) (+ (select (select (store .cse69 |c_main_~#sum~0.base| (store .cse70 |c_main_~#sum~0.offset| (+ .cse71 .cse72 .cse73 .cse74 .cse75))) c_main_~a~0.base) .cse8) .cse71 .cse72 .cse73 .cse74 .cse75))))))))))))) (<= ~N~0 .cse38) (<= ~N~0 1) (< 2 ~N~0) (< .cse60 ~N~0))))))))) is different from false