/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/float-newlib/float_req_bl_1270c.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 16:46:05,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 16:46:05,187 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 16:46:05,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 16:46:05,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 16:46:05,239 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 16:46:05,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 16:46:05,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 16:46:05,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 16:46:05,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 16:46:05,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 16:46:05,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 16:46:05,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 16:46:05,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 16:46:05,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 16:46:05,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 16:46:05,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 16:46:05,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 16:46:05,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 16:46:05,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 16:46:05,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 16:46:05,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 16:46:05,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 16:46:05,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 16:46:05,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 16:46:05,310 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 16:46:05,310 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 16:46:05,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 16:46:05,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 16:46:05,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 16:46:05,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 16:46:05,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 16:46:05,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 16:46:05,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 16:46:05,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 16:46:05,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 16:46:05,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 16:46:05,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 16:46:05,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 16:46:05,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 16:46:05,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 16:46:05,384 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-15 16:46:05,443 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 16:46:05,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 16:46:05,444 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 16:46:05,444 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 16:46:05,446 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 16:46:05,446 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 16:46:05,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 16:46:05,449 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 16:46:05,449 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 16:46:05,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 16:46:05,451 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 16:46:05,451 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 16:46:05,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 16:46:05,451 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 16:46:05,451 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 16:46:05,452 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 16:46:05,452 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 16:46:05,452 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 16:46:05,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 16:46:05,452 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 16:46:05,453 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 16:46:05,453 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 16:46:05,453 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 16:46:05,453 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 16:46:05,453 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 16:46:05,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:46:05,454 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 16:46:05,454 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 16:46:05,454 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 16:46:05,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 16:46:05,454 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 16:46:05,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 16:46:05,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 16:46:05,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 16:46:05,861 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 16:46:05,861 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 16:46:05,863 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1270c.c [2022-10-15 16:46:05,945 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63029c3f6/1c7a8d48ef4749d4ae0b95c73c96caf2/FLAG5fb89c377 [2022-10-15 16:46:06,612 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 16:46:06,612 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270c.c [2022-10-15 16:46:06,625 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63029c3f6/1c7a8d48ef4749d4ae0b95c73c96caf2/FLAG5fb89c377 [2022-10-15 16:46:06,927 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63029c3f6/1c7a8d48ef4749d4ae0b95c73c96caf2 [2022-10-15 16:46:06,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 16:46:06,938 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 16:46:06,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 16:46:06,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 16:46:06,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 16:46:06,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:46:06" (1/1) ... [2022-10-15 16:46:06,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581ef7c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:06, skipping insertion in model container [2022-10-15 16:46:06,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:46:06" (1/1) ... [2022-10-15 16:46:06,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 16:46:07,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 16:46:07,294 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270c.c[4703,4716] [2022-10-15 16:46:07,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:46:07,315 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 16:46:07,391 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270c.c[4703,4716] [2022-10-15 16:46:07,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:46:07,410 INFO L208 MainTranslator]: Completed translation [2022-10-15 16:46:07,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:07 WrapperNode [2022-10-15 16:46:07,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 16:46:07,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 16:46:07,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 16:46:07,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 16:46:07,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:07" (1/1) ... [2022-10-15 16:46:07,437 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:07" (1/1) ... [2022-10-15 16:46:07,475 INFO L138 Inliner]: procedures = 18, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 254 [2022-10-15 16:46:07,476 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 16:46:07,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 16:46:07,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 16:46:07,477 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 16:46:07,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:07" (1/1) ... [2022-10-15 16:46:07,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:07" (1/1) ... [2022-10-15 16:46:07,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:07" (1/1) ... [2022-10-15 16:46:07,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:07" (1/1) ... [2022-10-15 16:46:07,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:07" (1/1) ... [2022-10-15 16:46:07,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:07" (1/1) ... [2022-10-15 16:46:07,580 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:07" (1/1) ... [2022-10-15 16:46:07,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:07" (1/1) ... [2022-10-15 16:46:07,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 16:46:07,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 16:46:07,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 16:46:07,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 16:46:07,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:07" (1/1) ... [2022-10-15 16:46:07,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:46:07,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:46:07,650 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) [2022-10-15 16:46:07,670 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 [2022-10-15 16:46:07,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 16:46:07,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 16:46:07,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 16:46:07,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-10-15 16:46:07,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 16:46:07,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-10-15 16:46:07,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 16:46:07,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 16:46:07,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 16:46:07,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 16:46:07,737 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2022-10-15 16:46:07,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2022-10-15 16:46:07,932 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 16:46:07,935 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 16:46:08,768 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 16:46:08,784 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 16:46:08,784 INFO L300 CfgBuilder]: Removed 34 assume(true) statements. [2022-10-15 16:46:08,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:46:08 BoogieIcfgContainer [2022-10-15 16:46:08,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 16:46:08,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 16:46:08,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 16:46:08,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 16:46:08,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:46:06" (1/3) ... [2022-10-15 16:46:08,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fef2baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:46:08, skipping insertion in model container [2022-10-15 16:46:08,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:07" (2/3) ... [2022-10-15 16:46:08,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fef2baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:46:08, skipping insertion in model container [2022-10-15 16:46:08,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:46:08" (3/3) ... [2022-10-15 16:46:08,802 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270c.c [2022-10-15 16:46:08,828 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 16:46:08,828 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 66 error locations. [2022-10-15 16:46:08,916 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 16:46:08,944 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@72a1548a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 16:46:08,945 INFO L358 AbstractCegarLoop]: Starting to check reachability of 66 error locations. [2022-10-15 16:46:08,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 209 states, 139 states have (on average 1.9424460431654675) internal successors, (270), 205 states have internal predecessors, (270), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:46:08,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-15 16:46:08,959 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:46:08,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-15 16:46:08,961 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 63 more)] === [2022-10-15 16:46:08,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:46:08,967 INFO L85 PathProgramCache]: Analyzing trace with hash 925637, now seen corresponding path program 1 times [2022-10-15 16:46:08,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:46:08,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885476249] [2022-10-15 16:46:08,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:46:08,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:46:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:46:09,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:46:09,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:46:09,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885476249] [2022-10-15 16:46:09,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885476249] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:46:09,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:46:09,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:46:09,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274513110] [2022-10-15 16:46:09,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:46:09,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:46:09,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:46:09,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:46:09,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:09,255 INFO L87 Difference]: Start difference. First operand has 209 states, 139 states have (on average 1.9424460431654675) internal successors, (270), 205 states have internal predecessors, (270), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-10-15 16:46:09,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:46:09,483 INFO L93 Difference]: Finished difference Result 207 states and 232 transitions. [2022-10-15 16:46:09,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:46:09,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) Word has length 4 [2022-10-15 16:46:09,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:46:09,498 INFO L225 Difference]: With dead ends: 207 [2022-10-15 16:46:09,498 INFO L226 Difference]: Without dead ends: 205 [2022-10-15 16:46:09,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:09,505 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 4 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 16:46:09,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 359 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 16:46:09,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-10-15 16:46:09,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2022-10-15 16:46:09,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 138 states have (on average 1.6376811594202898) internal successors, (226), 201 states have internal predecessors, (226), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:46:09,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 230 transitions. [2022-10-15 16:46:09,570 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 230 transitions. Word has length 4 [2022-10-15 16:46:09,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:46:09,571 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 230 transitions. [2022-10-15 16:46:09,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-10-15 16:46:09,571 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 230 transitions. [2022-10-15 16:46:09,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-15 16:46:09,572 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:46:09,572 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-15 16:46:09,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 16:46:09,573 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 63 more)] === [2022-10-15 16:46:09,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:46:09,574 INFO L85 PathProgramCache]: Analyzing trace with hash 925638, now seen corresponding path program 1 times [2022-10-15 16:46:09,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:46:09,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189021726] [2022-10-15 16:46:09,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:46:09,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:46:09,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:46:09,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:46:09,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:46:09,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189021726] [2022-10-15 16:46:09,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189021726] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:46:09,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:46:09,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:46:09,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971583774] [2022-10-15 16:46:09,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:46:09,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:46:09,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:46:09,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:46:09,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:09,762 INFO L87 Difference]: Start difference. First operand 205 states and 230 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-10-15 16:46:09,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:46:09,900 INFO L93 Difference]: Finished difference Result 203 states and 228 transitions. [2022-10-15 16:46:09,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:46:09,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) Word has length 4 [2022-10-15 16:46:09,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:46:09,903 INFO L225 Difference]: With dead ends: 203 [2022-10-15 16:46:09,903 INFO L226 Difference]: Without dead ends: 203 [2022-10-15 16:46:09,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:09,906 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 2 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:46:09,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 372 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:46:09,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-10-15 16:46:09,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2022-10-15 16:46:09,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 138 states have (on average 1.6231884057971016) internal successors, (224), 199 states have internal predecessors, (224), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:46:09,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 228 transitions. [2022-10-15 16:46:09,924 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 228 transitions. Word has length 4 [2022-10-15 16:46:09,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:46:09,925 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 228 transitions. [2022-10-15 16:46:09,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-10-15 16:46:09,925 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 228 transitions. [2022-10-15 16:46:09,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 16:46:09,926 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:46:09,926 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:46:09,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 16:46:09,927 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 63 more)] === [2022-10-15 16:46:09,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:46:09,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1328548690, now seen corresponding path program 1 times [2022-10-15 16:46:09,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:46:09,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131559467] [2022-10-15 16:46:09,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:46:09,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:46:09,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:46:10,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:46:10,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:46:10,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131559467] [2022-10-15 16:46:10,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131559467] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:46:10,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:46:10,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:46:10,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495425571] [2022-10-15 16:46:10,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:46:10,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:46:10,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:46:10,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:46:10,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:10,063 INFO L87 Difference]: Start difference. First operand 203 states and 228 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-10-15 16:46:10,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:46:10,189 INFO L93 Difference]: Finished difference Result 201 states and 226 transitions. [2022-10-15 16:46:10,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:46:10,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) Word has length 10 [2022-10-15 16:46:10,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:46:10,192 INFO L225 Difference]: With dead ends: 201 [2022-10-15 16:46:10,192 INFO L226 Difference]: Without dead ends: 201 [2022-10-15 16:46:10,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:10,194 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 4 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:46:10,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 350 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:46:10,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-10-15 16:46:10,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2022-10-15 16:46:10,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 138 states have (on average 1.608695652173913) internal successors, (222), 197 states have internal predecessors, (222), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:46:10,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 226 transitions. [2022-10-15 16:46:10,209 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 226 transitions. Word has length 10 [2022-10-15 16:46:10,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:46:10,210 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 226 transitions. [2022-10-15 16:46:10,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-10-15 16:46:10,210 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 226 transitions. [2022-10-15 16:46:10,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 16:46:10,211 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:46:10,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:46:10,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 16:46:10,257 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 63 more)] === [2022-10-15 16:46:10,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:46:10,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1328548689, now seen corresponding path program 1 times [2022-10-15 16:46:10,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:46:10,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439039004] [2022-10-15 16:46:10,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:46:10,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:46:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:46:10,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:46:10,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:46:10,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439039004] [2022-10-15 16:46:10,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439039004] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:46:10,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:46:10,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:46:10,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700516746] [2022-10-15 16:46:10,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:46:10,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:46:10,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:46:10,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:46:10,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:10,448 INFO L87 Difference]: Start difference. First operand 201 states and 226 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-10-15 16:46:10,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:46:10,561 INFO L93 Difference]: Finished difference Result 199 states and 224 transitions. [2022-10-15 16:46:10,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:46:10,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) Word has length 10 [2022-10-15 16:46:10,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:46:10,564 INFO L225 Difference]: With dead ends: 199 [2022-10-15 16:46:10,564 INFO L226 Difference]: Without dead ends: 199 [2022-10-15 16:46:10,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:10,566 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 2 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:46:10,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 366 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:46:10,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-10-15 16:46:10,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2022-10-15 16:46:10,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 138 states have (on average 1.5942028985507246) internal successors, (220), 195 states have internal predecessors, (220), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:46:10,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 224 transitions. [2022-10-15 16:46:10,579 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 224 transitions. Word has length 10 [2022-10-15 16:46:10,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:46:10,580 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 224 transitions. [2022-10-15 16:46:10,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-10-15 16:46:10,580 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 224 transitions. [2022-10-15 16:46:10,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-15 16:46:10,581 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:46:10,581 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:46:10,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 16:46:10,582 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 63 more)] === [2022-10-15 16:46:10,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:46:10,582 INFO L85 PathProgramCache]: Analyzing trace with hash -676796070, now seen corresponding path program 1 times [2022-10-15 16:46:10,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:46:10,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49855636] [2022-10-15 16:46:10,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:46:10,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:46:10,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:46:10,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:46:10,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:46:10,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49855636] [2022-10-15 16:46:10,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49855636] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:46:10,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:46:10,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:46:10,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886233681] [2022-10-15 16:46:10,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:46:10,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:46:10,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:46:10,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:46:10,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:10,708 INFO L87 Difference]: Start difference. First operand 199 states and 224 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-10-15 16:46:10,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:46:10,831 INFO L93 Difference]: Finished difference Result 197 states and 222 transitions. [2022-10-15 16:46:10,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:46:10,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) Word has length 17 [2022-10-15 16:46:10,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:46:10,833 INFO L225 Difference]: With dead ends: 197 [2022-10-15 16:46:10,833 INFO L226 Difference]: Without dead ends: 197 [2022-10-15 16:46:10,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:10,838 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 4 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:46:10,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 344 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:46:10,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-10-15 16:46:10,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2022-10-15 16:46:10,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 138 states have (on average 1.5797101449275361) internal successors, (218), 193 states have internal predecessors, (218), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:46:10,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 222 transitions. [2022-10-15 16:46:10,863 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 222 transitions. Word has length 17 [2022-10-15 16:46:10,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:46:10,863 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 222 transitions. [2022-10-15 16:46:10,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-10-15 16:46:10,864 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 222 transitions. [2022-10-15 16:46:10,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-15 16:46:10,867 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:46:10,869 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:46:10,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 16:46:10,870 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 63 more)] === [2022-10-15 16:46:10,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:46:10,874 INFO L85 PathProgramCache]: Analyzing trace with hash -676796069, now seen corresponding path program 1 times [2022-10-15 16:46:10,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:46:10,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991030590] [2022-10-15 16:46:10,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:46:10,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:46:10,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:46:11,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:46:11,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:46:11,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991030590] [2022-10-15 16:46:11,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991030590] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:46:11,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:46:11,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:46:11,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844268176] [2022-10-15 16:46:11,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:46:11,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:46:11,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:46:11,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:46:11,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:11,006 INFO L87 Difference]: Start difference. First operand 197 states and 222 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-10-15 16:46:11,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:46:11,118 INFO L93 Difference]: Finished difference Result 195 states and 220 transitions. [2022-10-15 16:46:11,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:46:11,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) Word has length 17 [2022-10-15 16:46:11,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:46:11,120 INFO L225 Difference]: With dead ends: 195 [2022-10-15 16:46:11,120 INFO L226 Difference]: Without dead ends: 195 [2022-10-15 16:46:11,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:11,126 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 2 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:46:11,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 360 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:46:11,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-10-15 16:46:11,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2022-10-15 16:46:11,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 138 states have (on average 1.565217391304348) internal successors, (216), 191 states have internal predecessors, (216), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:46:11,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 220 transitions. [2022-10-15 16:46:11,140 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 220 transitions. Word has length 17 [2022-10-15 16:46:11,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:46:11,140 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 220 transitions. [2022-10-15 16:46:11,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-10-15 16:46:11,141 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 220 transitions. [2022-10-15 16:46:11,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-15 16:46:11,141 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:46:11,142 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] [2022-10-15 16:46:11,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 16:46:11,142 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 63 more)] === [2022-10-15 16:46:11,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:46:11,143 INFO L85 PathProgramCache]: Analyzing trace with hash -444440092, now seen corresponding path program 1 times [2022-10-15 16:46:11,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:46:11,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248369621] [2022-10-15 16:46:11,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:46:11,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:46:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:46:11,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:46:11,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:46:11,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248369621] [2022-10-15 16:46:11,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248369621] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:46:11,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:46:11,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:46:11,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077001428] [2022-10-15 16:46:11,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:46:11,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:46:11,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:46:11,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:46:11,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:11,261 INFO L87 Difference]: Start difference. First operand 195 states and 220 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-10-15 16:46:11,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:46:11,373 INFO L93 Difference]: Finished difference Result 193 states and 218 transitions. [2022-10-15 16:46:11,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:46:11,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) Word has length 22 [2022-10-15 16:46:11,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:46:11,375 INFO L225 Difference]: With dead ends: 193 [2022-10-15 16:46:11,376 INFO L226 Difference]: Without dead ends: 193 [2022-10-15 16:46:11,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:11,381 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 4 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:46:11,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 338 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:46:11,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-10-15 16:46:11,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2022-10-15 16:46:11,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 138 states have (on average 1.5507246376811594) internal successors, (214), 189 states have internal predecessors, (214), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:46:11,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 218 transitions. [2022-10-15 16:46:11,388 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 218 transitions. Word has length 22 [2022-10-15 16:46:11,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:46:11,389 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 218 transitions. [2022-10-15 16:46:11,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-10-15 16:46:11,390 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 218 transitions. [2022-10-15 16:46:11,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-15 16:46:11,395 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:46:11,395 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] [2022-10-15 16:46:11,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 16:46:11,396 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 63 more)] === [2022-10-15 16:46:11,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:46:11,397 INFO L85 PathProgramCache]: Analyzing trace with hash -444440091, now seen corresponding path program 1 times [2022-10-15 16:46:11,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:46:11,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124063811] [2022-10-15 16:46:11,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:46:11,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:46:11,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:46:11,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:46:11,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:46:11,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124063811] [2022-10-15 16:46:11,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124063811] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:46:11,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:46:11,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:46:11,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951409063] [2022-10-15 16:46:11,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:46:11,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:46:11,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:46:11,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:46:11,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:11,600 INFO L87 Difference]: Start difference. First operand 193 states and 218 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-10-15 16:46:11,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:46:11,694 INFO L93 Difference]: Finished difference Result 191 states and 216 transitions. [2022-10-15 16:46:11,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:46:11,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) Word has length 22 [2022-10-15 16:46:11,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:46:11,696 INFO L225 Difference]: With dead ends: 191 [2022-10-15 16:46:11,696 INFO L226 Difference]: Without dead ends: 191 [2022-10-15 16:46:11,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:11,698 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 2 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:46:11,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 354 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:46:11,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-10-15 16:46:11,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2022-10-15 16:46:11,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 138 states have (on average 1.536231884057971) internal successors, (212), 187 states have internal predecessors, (212), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:46:11,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 216 transitions. [2022-10-15 16:46:11,706 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 216 transitions. Word has length 22 [2022-10-15 16:46:11,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:46:11,710 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 216 transitions. [2022-10-15 16:46:11,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-10-15 16:46:11,716 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 216 transitions. [2022-10-15 16:46:11,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-15 16:46:11,719 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:46:11,719 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] [2022-10-15 16:46:11,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 16:46:11,720 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 63 more)] === [2022-10-15 16:46:11,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:46:11,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1322532790, now seen corresponding path program 1 times [2022-10-15 16:46:11,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:46:11,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938774478] [2022-10-15 16:46:11,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:46:11,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:46:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:46:11,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:46:11,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:46:11,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938774478] [2022-10-15 16:46:11,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938774478] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:46:11,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:46:11,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:46:11,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397672610] [2022-10-15 16:46:11,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:46:11,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:46:11,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:46:11,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:46:11,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:11,824 INFO L87 Difference]: Start difference. First operand 191 states and 216 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) [2022-10-15 16:46:11,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:46:11,928 INFO L93 Difference]: Finished difference Result 189 states and 214 transitions. [2022-10-15 16:46:11,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:46:11,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) Word has length 29 [2022-10-15 16:46:11,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:46:11,930 INFO L225 Difference]: With dead ends: 189 [2022-10-15 16:46:11,931 INFO L226 Difference]: Without dead ends: 189 [2022-10-15 16:46:11,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:11,934 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 4 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:46:11,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 331 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:46:11,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-10-15 16:46:11,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2022-10-15 16:46:11,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 138 states have (on average 1.5217391304347827) internal successors, (210), 185 states have internal predecessors, (210), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:46:11,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 214 transitions. [2022-10-15 16:46:11,941 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 214 transitions. Word has length 29 [2022-10-15 16:46:11,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:46:11,943 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 214 transitions. [2022-10-15 16:46:11,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) [2022-10-15 16:46:11,943 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 214 transitions. [2022-10-15 16:46:11,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-15 16:46:11,944 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:46:11,944 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] [2022-10-15 16:46:11,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 16:46:11,945 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 63 more)] === [2022-10-15 16:46:11,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:46:11,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1322532791, now seen corresponding path program 1 times [2022-10-15 16:46:11,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:46:11,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35677224] [2022-10-15 16:46:11,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:46:11,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:46:11,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:46:12,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:46:12,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:46:12,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35677224] [2022-10-15 16:46:12,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35677224] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:46:12,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:46:12,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:46:12,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386432265] [2022-10-15 16:46:12,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:46:12,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:46:12,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:46:12,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:46:12,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:12,123 INFO L87 Difference]: Start difference. First operand 189 states and 214 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) [2022-10-15 16:46:12,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:46:12,209 INFO L93 Difference]: Finished difference Result 187 states and 212 transitions. [2022-10-15 16:46:12,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:46:12,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) Word has length 29 [2022-10-15 16:46:12,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:46:12,211 INFO L225 Difference]: With dead ends: 187 [2022-10-15 16:46:12,211 INFO L226 Difference]: Without dead ends: 187 [2022-10-15 16:46:12,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:12,213 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 2 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:46:12,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 348 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:46:12,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-10-15 16:46:12,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2022-10-15 16:46:12,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 138 states have (on average 1.5072463768115942) internal successors, (208), 183 states have internal predecessors, (208), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:46:12,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 212 transitions. [2022-10-15 16:46:12,222 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 212 transitions. Word has length 29 [2022-10-15 16:46:12,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:46:12,222 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 212 transitions. [2022-10-15 16:46:12,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) [2022-10-15 16:46:12,223 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 212 transitions. [2022-10-15 16:46:12,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-15 16:46:12,227 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:46:12,227 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] [2022-10-15 16:46:12,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 16:46:12,228 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 63 more)] === [2022-10-15 16:46:12,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:46:12,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1956344669, now seen corresponding path program 1 times [2022-10-15 16:46:12,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:46:12,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331053656] [2022-10-15 16:46:12,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:46:12,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:46:12,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:46:12,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:46:12,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:46:12,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331053656] [2022-10-15 16:46:12,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331053656] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:46:12,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:46:12,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:46:12,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832020076] [2022-10-15 16:46:12,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:46:12,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:46:12,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:46:12,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:46:12,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:12,348 INFO L87 Difference]: Start difference. First operand 187 states and 212 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-10-15 16:46:12,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:46:12,446 INFO L93 Difference]: Finished difference Result 185 states and 210 transitions. [2022-10-15 16:46:12,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:46:12,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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) Word has length 30 [2022-10-15 16:46:12,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:46:12,448 INFO L225 Difference]: With dead ends: 185 [2022-10-15 16:46:12,448 INFO L226 Difference]: Without dead ends: 185 [2022-10-15 16:46:12,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:12,450 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 4 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:46:12,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 326 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:46:12,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-10-15 16:46:12,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2022-10-15 16:46:12,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 138 states have (on average 1.4927536231884058) internal successors, (206), 181 states have internal predecessors, (206), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:46:12,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 210 transitions. [2022-10-15 16:46:12,458 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 210 transitions. Word has length 30 [2022-10-15 16:46:12,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:46:12,460 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 210 transitions. [2022-10-15 16:46:12,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-10-15 16:46:12,460 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 210 transitions. [2022-10-15 16:46:12,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-15 16:46:12,464 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:46:12,464 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] [2022-10-15 16:46:12,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 16:46:12,467 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 63 more)] === [2022-10-15 16:46:12,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:46:12,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1956344668, now seen corresponding path program 1 times [2022-10-15 16:46:12,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:46:12,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736452242] [2022-10-15 16:46:12,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:46:12,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:46:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:46:12,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:46:12,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:46:12,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736452242] [2022-10-15 16:46:12,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736452242] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:46:12,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:46:12,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:46:12,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850937215] [2022-10-15 16:46:12,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:46:12,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:46:12,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:46:12,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:46:12,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:12,595 INFO L87 Difference]: Start difference. First operand 185 states and 210 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-10-15 16:46:12,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:46:12,680 INFO L93 Difference]: Finished difference Result 183 states and 208 transitions. [2022-10-15 16:46:12,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:46:12,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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) Word has length 30 [2022-10-15 16:46:12,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:46:12,682 INFO L225 Difference]: With dead ends: 183 [2022-10-15 16:46:12,682 INFO L226 Difference]: Without dead ends: 183 [2022-10-15 16:46:12,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:12,683 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 2 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:46:12,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 342 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:46:12,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-10-15 16:46:12,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2022-10-15 16:46:12,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 138 states have (on average 1.4782608695652173) internal successors, (204), 179 states have internal predecessors, (204), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:46:12,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 208 transitions. [2022-10-15 16:46:12,689 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 208 transitions. Word has length 30 [2022-10-15 16:46:12,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:46:12,690 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 208 transitions. [2022-10-15 16:46:12,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-10-15 16:46:12,690 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 208 transitions. [2022-10-15 16:46:12,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-15 16:46:12,691 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:46:12,691 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] [2022-10-15 16:46:12,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 16:46:12,691 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 63 more)] === [2022-10-15 16:46:12,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:46:12,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1473586216, now seen corresponding path program 1 times [2022-10-15 16:46:12,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:46:12,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447167544] [2022-10-15 16:46:12,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:46:12,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:46:12,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:46:12,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:46:12,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:46:12,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447167544] [2022-10-15 16:46:12,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447167544] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:46:12,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:46:12,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:46:12,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292436761] [2022-10-15 16:46:12,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:46:12,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:46:12,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:46:12,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:46:12,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:12,770 INFO L87 Difference]: Start difference. First operand 183 states and 208 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-10-15 16:46:12,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:46:12,870 INFO L93 Difference]: Finished difference Result 181 states and 206 transitions. [2022-10-15 16:46:12,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:46:12,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) Word has length 32 [2022-10-15 16:46:12,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:46:12,872 INFO L225 Difference]: With dead ends: 181 [2022-10-15 16:46:12,872 INFO L226 Difference]: Without dead ends: 181 [2022-10-15 16:46:12,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:12,874 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 4 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:46:12,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 320 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:46:12,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-10-15 16:46:12,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2022-10-15 16:46:12,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 138 states have (on average 1.463768115942029) internal successors, (202), 177 states have internal predecessors, (202), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:46:12,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 206 transitions. [2022-10-15 16:46:12,879 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 206 transitions. Word has length 32 [2022-10-15 16:46:12,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:46:12,880 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 206 transitions. [2022-10-15 16:46:12,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-10-15 16:46:12,880 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 206 transitions. [2022-10-15 16:46:12,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-15 16:46:12,881 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:46:12,881 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] [2022-10-15 16:46:12,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 16:46:12,882 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 63 more)] === [2022-10-15 16:46:12,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:46:12,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1473586215, now seen corresponding path program 1 times [2022-10-15 16:46:12,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:46:12,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056922676] [2022-10-15 16:46:12,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:46:12,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:46:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:46:13,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:46:13,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:46:13,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056922676] [2022-10-15 16:46:13,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056922676] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:46:13,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:46:13,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:46:13,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824963774] [2022-10-15 16:46:13,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:46:13,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:46:13,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:46:13,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:46:13,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:13,079 INFO L87 Difference]: Start difference. First operand 181 states and 206 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-10-15 16:46:13,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:46:13,162 INFO L93 Difference]: Finished difference Result 179 states and 204 transitions. [2022-10-15 16:46:13,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:46:13,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) Word has length 32 [2022-10-15 16:46:13,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:46:13,164 INFO L225 Difference]: With dead ends: 179 [2022-10-15 16:46:13,164 INFO L226 Difference]: Without dead ends: 179 [2022-10-15 16:46:13,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:13,165 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 2 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:46:13,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 336 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:46:13,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-10-15 16:46:13,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2022-10-15 16:46:13,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 138 states have (on average 1.4492753623188406) internal successors, (200), 175 states have internal predecessors, (200), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:46:13,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 204 transitions. [2022-10-15 16:46:13,171 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 204 transitions. Word has length 32 [2022-10-15 16:46:13,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:46:13,171 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 204 transitions. [2022-10-15 16:46:13,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-10-15 16:46:13,172 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 204 transitions. [2022-10-15 16:46:13,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-15 16:46:13,186 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:46:13,186 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] [2022-10-15 16:46:13,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 16:46:13,187 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 63 more)] === [2022-10-15 16:46:13,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:46:13,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1473564370, now seen corresponding path program 1 times [2022-10-15 16:46:13,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:46:13,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233855423] [2022-10-15 16:46:13,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:46:13,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:46:13,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:46:13,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:46:13,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:46:13,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233855423] [2022-10-15 16:46:13,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233855423] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:46:13,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:46:13,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:46:13,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619737309] [2022-10-15 16:46:13,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:46:13,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:46:13,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:46:13,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:46:13,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:13,267 INFO L87 Difference]: Start difference. First operand 179 states and 204 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-10-15 16:46:13,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:46:13,357 INFO L93 Difference]: Finished difference Result 177 states and 202 transitions. [2022-10-15 16:46:13,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:46:13,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) Word has length 32 [2022-10-15 16:46:13,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:46:13,359 INFO L225 Difference]: With dead ends: 177 [2022-10-15 16:46:13,360 INFO L226 Difference]: Without dead ends: 177 [2022-10-15 16:46:13,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:13,361 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 4 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:46:13,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 314 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:46:13,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-10-15 16:46:13,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2022-10-15 16:46:13,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 138 states have (on average 1.434782608695652) internal successors, (198), 173 states have internal predecessors, (198), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:46:13,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 202 transitions. [2022-10-15 16:46:13,367 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 202 transitions. Word has length 32 [2022-10-15 16:46:13,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:46:13,367 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 202 transitions. [2022-10-15 16:46:13,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-10-15 16:46:13,368 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 202 transitions. [2022-10-15 16:46:13,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-15 16:46:13,368 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:46:13,368 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] [2022-10-15 16:46:13,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 16:46:13,369 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 63 more)] === [2022-10-15 16:46:13,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:46:13,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1473564369, now seen corresponding path program 1 times [2022-10-15 16:46:13,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:46:13,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422527278] [2022-10-15 16:46:13,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:46:13,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:46:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:46:13,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:46:13,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:46:13,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422527278] [2022-10-15 16:46:13,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422527278] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:46:13,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:46:13,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:46:13,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375640316] [2022-10-15 16:46:13,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:46:13,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:46:13,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:46:13,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:46:13,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:13,489 INFO L87 Difference]: Start difference. First operand 177 states and 202 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-10-15 16:46:13,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:46:13,572 INFO L93 Difference]: Finished difference Result 175 states and 200 transitions. [2022-10-15 16:46:13,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:46:13,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) Word has length 32 [2022-10-15 16:46:13,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:46:13,574 INFO L225 Difference]: With dead ends: 175 [2022-10-15 16:46:13,574 INFO L226 Difference]: Without dead ends: 175 [2022-10-15 16:46:13,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:13,575 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 2 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:46:13,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 330 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:46:13,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-10-15 16:46:13,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2022-10-15 16:46:13,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 138 states have (on average 1.4202898550724639) internal successors, (196), 171 states have internal predecessors, (196), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:46:13,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 200 transitions. [2022-10-15 16:46:13,581 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 200 transitions. Word has length 32 [2022-10-15 16:46:13,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:46:13,581 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 200 transitions. [2022-10-15 16:46:13,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-10-15 16:46:13,581 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 200 transitions. [2022-10-15 16:46:13,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-15 16:46:13,582 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:46:13,582 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] [2022-10-15 16:46:13,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 16:46:13,582 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 63 more)] === [2022-10-15 16:46:13,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:46:13,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1407831523, now seen corresponding path program 1 times [2022-10-15 16:46:13,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:46:13,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290123566] [2022-10-15 16:46:13,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:46:13,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:46:13,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:46:13,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:46:13,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:46:13,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290123566] [2022-10-15 16:46:13,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290123566] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:46:13,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:46:13,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:46:13,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059737603] [2022-10-15 16:46:13,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:46:13,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:46:13,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:46:13,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:46:13,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:13,671 INFO L87 Difference]: Start difference. First operand 175 states and 200 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-10-15 16:46:13,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:46:13,757 INFO L93 Difference]: Finished difference Result 173 states and 198 transitions. [2022-10-15 16:46:13,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:46:13,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) Word has length 32 [2022-10-15 16:46:13,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:46:13,760 INFO L225 Difference]: With dead ends: 173 [2022-10-15 16:46:13,760 INFO L226 Difference]: Without dead ends: 173 [2022-10-15 16:46:13,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:13,762 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 4 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:46:13,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 308 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:46:13,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-10-15 16:46:13,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2022-10-15 16:46:13,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 138 states have (on average 1.4057971014492754) internal successors, (194), 169 states have internal predecessors, (194), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:46:13,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 198 transitions. [2022-10-15 16:46:13,767 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 198 transitions. Word has length 32 [2022-10-15 16:46:13,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:46:13,769 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 198 transitions. [2022-10-15 16:46:13,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-10-15 16:46:13,769 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 198 transitions. [2022-10-15 16:46:13,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-15 16:46:13,769 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:46:13,770 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] [2022-10-15 16:46:13,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-15 16:46:13,770 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 63 more)] === [2022-10-15 16:46:13,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:46:13,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1407831522, now seen corresponding path program 1 times [2022-10-15 16:46:13,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:46:13,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307059617] [2022-10-15 16:46:13,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:46:13,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:46:13,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:46:13,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:46:13,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:46:13,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307059617] [2022-10-15 16:46:13,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307059617] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:46:13,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:46:13,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:46:13,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049429996] [2022-10-15 16:46:13,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:46:13,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:46:13,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:46:13,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:46:13,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:13,955 INFO L87 Difference]: Start difference. First operand 173 states and 198 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-10-15 16:46:14,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:46:14,034 INFO L93 Difference]: Finished difference Result 171 states and 196 transitions. [2022-10-15 16:46:14,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:46:14,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) Word has length 32 [2022-10-15 16:46:14,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:46:14,036 INFO L225 Difference]: With dead ends: 171 [2022-10-15 16:46:14,036 INFO L226 Difference]: Without dead ends: 171 [2022-10-15 16:46:14,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:14,039 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 2 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:46:14,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 324 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:46:14,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-10-15 16:46:14,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2022-10-15 16:46:14,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 138 states have (on average 1.391304347826087) internal successors, (192), 167 states have internal predecessors, (192), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:46:14,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 196 transitions. [2022-10-15 16:46:14,046 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 196 transitions. Word has length 32 [2022-10-15 16:46:14,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:46:14,047 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 196 transitions. [2022-10-15 16:46:14,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-10-15 16:46:14,047 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 196 transitions. [2022-10-15 16:46:14,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-15 16:46:14,048 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:46:14,048 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] [2022-10-15 16:46:14,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-15 16:46:14,049 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 63 more)] === [2022-10-15 16:46:14,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:46:14,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1407807691, now seen corresponding path program 1 times [2022-10-15 16:46:14,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:46:14,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804231552] [2022-10-15 16:46:14,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:46:14,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:46:14,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:46:14,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:46:14,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:46:14,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804231552] [2022-10-15 16:46:14,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804231552] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:46:14,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:46:14,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:46:14,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234253452] [2022-10-15 16:46:14,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:46:14,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:46:14,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:46:14,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:46:14,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:14,172 INFO L87 Difference]: Start difference. First operand 171 states and 196 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-10-15 16:46:14,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:46:14,260 INFO L93 Difference]: Finished difference Result 169 states and 194 transitions. [2022-10-15 16:46:14,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:46:14,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) Word has length 32 [2022-10-15 16:46:14,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:46:14,262 INFO L225 Difference]: With dead ends: 169 [2022-10-15 16:46:14,262 INFO L226 Difference]: Without dead ends: 169 [2022-10-15 16:46:14,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:14,264 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 4 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:46:14,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 302 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:46:14,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-10-15 16:46:14,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2022-10-15 16:46:14,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 138 states have (on average 1.3768115942028984) internal successors, (190), 165 states have internal predecessors, (190), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:46:14,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 194 transitions. [2022-10-15 16:46:14,271 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 194 transitions. Word has length 32 [2022-10-15 16:46:14,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:46:14,271 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 194 transitions. [2022-10-15 16:46:14,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-10-15 16:46:14,271 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 194 transitions. [2022-10-15 16:46:14,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-15 16:46:14,272 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:46:14,272 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] [2022-10-15 16:46:14,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-15 16:46:14,273 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr41REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 63 more)] === [2022-10-15 16:46:14,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:46:14,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1407807690, now seen corresponding path program 1 times [2022-10-15 16:46:14,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:46:14,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400704046] [2022-10-15 16:46:14,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:46:14,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:46:14,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:46:14,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:46:14,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:46:14,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400704046] [2022-10-15 16:46:14,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400704046] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:46:14,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:46:14,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:46:14,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633178345] [2022-10-15 16:46:14,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:46:14,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:46:14,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:46:14,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:46:14,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:14,395 INFO L87 Difference]: Start difference. First operand 169 states and 194 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-10-15 16:46:14,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:46:14,473 INFO L93 Difference]: Finished difference Result 167 states and 192 transitions. [2022-10-15 16:46:14,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:46:14,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) Word has length 32 [2022-10-15 16:46:14,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:46:14,475 INFO L225 Difference]: With dead ends: 167 [2022-10-15 16:46:14,475 INFO L226 Difference]: Without dead ends: 167 [2022-10-15 16:46:14,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:14,476 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 2 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:46:14,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 318 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:46:14,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-10-15 16:46:14,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2022-10-15 16:46:14,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 138 states have (on average 1.3623188405797102) internal successors, (188), 163 states have internal predecessors, (188), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:46:14,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 192 transitions. [2022-10-15 16:46:14,481 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 192 transitions. Word has length 32 [2022-10-15 16:46:14,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:46:14,482 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 192 transitions. [2022-10-15 16:46:14,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-10-15 16:46:14,482 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 192 transitions. [2022-10-15 16:46:14,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-15 16:46:14,482 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:46:14,483 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, 1, 1] [2022-10-15 16:46:14,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-15 16:46:14,483 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 63 more)] === [2022-10-15 16:46:14,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:46:14,484 INFO L85 PathProgramCache]: Analyzing trace with hash -189020998, now seen corresponding path program 1 times [2022-10-15 16:46:14,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:46:14,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062812232] [2022-10-15 16:46:14,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:46:14,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:46:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:46:14,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:46:14,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:46:14,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062812232] [2022-10-15 16:46:14,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062812232] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:46:14,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:46:14,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:46:14,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67688781] [2022-10-15 16:46:14,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:46:14,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:46:14,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:46:14,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:46:14,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:14,560 INFO L87 Difference]: Start difference. First operand 167 states and 192 transitions. Second operand has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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) [2022-10-15 16:46:14,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:46:14,649 INFO L93 Difference]: Finished difference Result 165 states and 190 transitions. [2022-10-15 16:46:14,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:46:14,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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) Word has length 35 [2022-10-15 16:46:14,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:46:14,651 INFO L225 Difference]: With dead ends: 165 [2022-10-15 16:46:14,651 INFO L226 Difference]: Without dead ends: 165 [2022-10-15 16:46:14,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:14,652 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 4 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:46:14,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 296 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:46:14,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-10-15 16:46:14,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2022-10-15 16:46:14,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 138 states have (on average 1.3478260869565217) internal successors, (186), 161 states have internal predecessors, (186), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:46:14,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 190 transitions. [2022-10-15 16:46:14,658 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 190 transitions. Word has length 35 [2022-10-15 16:46:14,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:46:14,658 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 190 transitions. [2022-10-15 16:46:14,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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) [2022-10-15 16:46:14,658 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 190 transitions. [2022-10-15 16:46:14,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-15 16:46:14,659 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:46:14,659 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, 1, 1] [2022-10-15 16:46:14,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-15 16:46:14,659 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 63 more)] === [2022-10-15 16:46:14,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:46:14,660 INFO L85 PathProgramCache]: Analyzing trace with hash -189020997, now seen corresponding path program 1 times [2022-10-15 16:46:14,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:46:14,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941584978] [2022-10-15 16:46:14,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:46:14,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:46:14,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:46:14,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:46:14,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:46:14,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941584978] [2022-10-15 16:46:14,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941584978] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:46:14,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:46:14,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:46:14,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190658273] [2022-10-15 16:46:14,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:46:14,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:46:14,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:46:14,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:46:14,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:14,804 INFO L87 Difference]: Start difference. First operand 165 states and 190 transitions. Second operand has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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) [2022-10-15 16:46:14,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:46:14,874 INFO L93 Difference]: Finished difference Result 163 states and 188 transitions. [2022-10-15 16:46:14,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:46:14,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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) Word has length 35 [2022-10-15 16:46:14,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:46:14,878 INFO L225 Difference]: With dead ends: 163 [2022-10-15 16:46:14,878 INFO L226 Difference]: Without dead ends: 163 [2022-10-15 16:46:14,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:46:14,879 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 2 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:46:14,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 312 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:46:14,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-10-15 16:46:14,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2022-10-15 16:46:14,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 138 states have (on average 1.3333333333333333) internal successors, (184), 159 states have internal predecessors, (184), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:46:14,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 188 transitions. [2022-10-15 16:46:14,885 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 188 transitions. Word has length 35 [2022-10-15 16:46:14,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:46:14,885 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 188 transitions. [2022-10-15 16:46:14,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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) [2022-10-15 16:46:14,885 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 188 transitions. [2022-10-15 16:46:14,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-15 16:46:14,886 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:46:14,886 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, 1, 1, 1] [2022-10-15 16:46:14,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-15 16:46:14,886 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 63 more)] === [2022-10-15 16:46:14,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:46:14,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1014349339, now seen corresponding path program 1 times [2022-10-15 16:46:14,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:46:14,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529235031] [2022-10-15 16:46:14,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:46:14,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:46:14,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 16:46:14,961 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-15 16:46:14,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 16:46:15,041 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-15 16:46:15,041 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-15 16:46:15,042 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK (65 of 66 remaining) [2022-10-15 16:46:15,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 66 remaining) [2022-10-15 16:46:15,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (63 of 66 remaining) [2022-10-15 16:46:15,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (62 of 66 remaining) [2022-10-15 16:46:15,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 66 remaining) [2022-10-15 16:46:15,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 66 remaining) [2022-10-15 16:46:15,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 66 remaining) [2022-10-15 16:46:15,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 66 remaining) [2022-10-15 16:46:15,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 66 remaining) [2022-10-15 16:46:15,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 66 remaining) [2022-10-15 16:46:15,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 66 remaining) [2022-10-15 16:46:15,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 66 remaining) [2022-10-15 16:46:15,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 66 remaining) [2022-10-15 16:46:15,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 66 remaining) [2022-10-15 16:46:15,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 66 remaining) [2022-10-15 16:46:15,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 66 remaining) [2022-10-15 16:46:15,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 66 remaining) [2022-10-15 16:46:15,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 66 remaining) [2022-10-15 16:46:15,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 66 remaining) [2022-10-15 16:46:15,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 66 remaining) [2022-10-15 16:46:15,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 66 remaining) [2022-10-15 16:46:15,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 66 remaining) [2022-10-15 16:46:15,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 66 remaining) [2022-10-15 16:46:15,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 66 remaining) [2022-10-15 16:46:15,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 66 remaining) [2022-10-15 16:46:15,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 66 remaining) [2022-10-15 16:46:15,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 66 remaining) [2022-10-15 16:46:15,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 66 remaining) [2022-10-15 16:46:15,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 66 remaining) [2022-10-15 16:46:15,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 66 remaining) [2022-10-15 16:46:15,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 66 remaining) [2022-10-15 16:46:15,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 66 remaining) [2022-10-15 16:46:15,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 66 remaining) [2022-10-15 16:46:15,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 66 remaining) [2022-10-15 16:46:15,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 66 remaining) [2022-10-15 16:46:15,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 66 remaining) [2022-10-15 16:46:15,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 66 remaining) [2022-10-15 16:46:15,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 66 remaining) [2022-10-15 16:46:15,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 66 remaining) [2022-10-15 16:46:15,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 66 remaining) [2022-10-15 16:46:15,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 66 remaining) [2022-10-15 16:46:15,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 66 remaining) [2022-10-15 16:46:15,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 66 remaining) [2022-10-15 16:46:15,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 66 remaining) [2022-10-15 16:46:15,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 66 remaining) [2022-10-15 16:46:15,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 66 remaining) [2022-10-15 16:46:15,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 66 remaining) [2022-10-15 16:46:15,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 66 remaining) [2022-10-15 16:46:15,058 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 66 remaining) [2022-10-15 16:46:15,058 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 66 remaining) [2022-10-15 16:46:15,058 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 66 remaining) [2022-10-15 16:46:15,058 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 66 remaining) [2022-10-15 16:46:15,058 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 66 remaining) [2022-10-15 16:46:15,059 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 66 remaining) [2022-10-15 16:46:15,059 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 66 remaining) [2022-10-15 16:46:15,059 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 66 remaining) [2022-10-15 16:46:15,059 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 66 remaining) [2022-10-15 16:46:15,060 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK (8 of 66 remaining) [2022-10-15 16:46:15,061 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 66 remaining) [2022-10-15 16:46:15,061 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 66 remaining) [2022-10-15 16:46:15,062 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 66 remaining) [2022-10-15 16:46:15,062 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 66 remaining) [2022-10-15 16:46:15,062 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 66 remaining) [2022-10-15 16:46:15,062 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 66 remaining) [2022-10-15 16:46:15,063 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 66 remaining) [2022-10-15 16:46:15,063 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 66 remaining) [2022-10-15 16:46:15,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-10-15 16:46:15,070 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:46:15,076 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 16:46:15,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 04:46:15 BoogieIcfgContainer [2022-10-15 16:46:15,158 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 16:46:15,158 INFO L158 Benchmark]: Toolchain (without parser) took 8225.70ms. Allocated memory was 161.5MB in the beginning and 245.4MB in the end (delta: 83.9MB). Free memory was 135.3MB in the beginning and 189.7MB in the end (delta: -54.4MB). Peak memory consumption was 31.0MB. Max. memory is 8.0GB. [2022-10-15 16:46:15,159 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 161.5MB. Free memory was 131.0MB in the beginning and 130.9MB in the end (delta: 71.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 16:46:15,163 INFO L158 Benchmark]: CACSL2BoogieTranslator took 469.70ms. Allocated memory is still 161.5MB. Free memory was 135.1MB in the beginning and 121.8MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-10-15 16:46:15,164 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.06ms. Allocated memory is still 161.5MB. Free memory was 121.7MB in the beginning and 119.4MB in the end (delta: 2.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-10-15 16:46:15,164 INFO L158 Benchmark]: Boogie Preprocessor took 121.30ms. Allocated memory is still 161.5MB. Free memory was 119.4MB in the beginning and 116.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-15 16:46:15,164 INFO L158 Benchmark]: RCFGBuilder took 1188.96ms. Allocated memory is still 161.5MB. Free memory was 116.7MB in the beginning and 120.5MB in the end (delta: -3.9MB). Peak memory consumption was 16.9MB. Max. memory is 8.0GB. [2022-10-15 16:46:15,165 INFO L158 Benchmark]: TraceAbstraction took 6365.06ms. Allocated memory was 161.5MB in the beginning and 245.4MB in the end (delta: 83.9MB). Free memory was 120.0MB in the beginning and 189.7MB in the end (delta: -69.7MB). Peak memory consumption was 14.1MB. Max. memory is 8.0GB. [2022-10-15 16:46:15,168 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 161.5MB. Free memory was 131.0MB in the beginning and 130.9MB in the end (delta: 71.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 469.70ms. Allocated memory is still 161.5MB. Free memory was 135.1MB in the beginning and 121.8MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 64.06ms. Allocated memory is still 161.5MB. Free memory was 121.7MB in the beginning and 119.4MB in the end (delta: 2.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 121.30ms. Allocated memory is still 161.5MB. Free memory was 119.4MB in the beginning and 116.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1188.96ms. Allocated memory is still 161.5MB. Free memory was 116.7MB in the beginning and 120.5MB in the end (delta: -3.9MB). Peak memory consumption was 16.9MB. Max. memory is 8.0GB. * TraceAbstraction took 6365.06ms. Allocated memory was 161.5MB in the beginning and 245.4MB in the end (delta: 83.9MB). Free memory was 120.0MB in the beginning and 189.7MB in the end (delta: -69.7MB). Peak memory consumption was 14.1MB. 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 - UnprovableResult [Line: 237]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 120, overapproximation of bitwiseAnd at line 220, overapproximation of memtrack at line 237. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L231] float x = __VERIFIER_nondet_float(); [L232] float y = 1.0f / 0.0f; [L234] CALL, EXPR __ieee754_hypotf(x, y) [L84] float a = x, b = y, t1, t2, y1, y2, w; [L85] __int32_t j, k, ha, hb; VAL [\old(x)=8589934610, \old(y)=8589934611, a=8589934610, b=8589934611, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934610, y=8589934611] [L88] ieee_float_shape_type gf_u; VAL [\old(x)=8589934610, \old(y)=8589934611, a=8589934610, b=8589934611, gf_u={6:0}, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934610, y=8589934611] [L89] gf_u.value = (x) VAL [\old(x)=8589934610, \old(y)=8589934611, a=8589934610, b=8589934611, gf_u={6:0}, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934610, y=8589934611] [L90] EXPR gf_u.word VAL [\old(x)=8589934610, \old(y)=8589934611, a=8589934610, b=8589934611, gf_u={6:0}, gf_u.word=8589934590, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934610, y=8589934611] [L90] (ha) = gf_u.word [L92] ha &= 0x7fffffffL VAL [\old(x)=8589934610, \old(y)=8589934611, a=8589934610, b=8589934611, ha=-251658240, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934610, y=8589934611] [L94] ieee_float_shape_type gf_u; VAL [\old(x)=8589934610, \old(y)=8589934611, a=8589934610, b=8589934611, gf_u={7:0}, ha=-251658240, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934610, y=8589934611] [L95] gf_u.value = (y) VAL [\old(x)=8589934610, \old(y)=8589934611, a=8589934610, b=8589934611, gf_u={7:0}, ha=-251658240, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934610, y=8589934611] [L96] EXPR gf_u.word VAL [\old(x)=8589934610, \old(y)=8589934611, a=8589934610, b=8589934611, gf_u={7:0}, gf_u.word=8589934589, ha=-251658240, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934610, y=8589934611] [L96] (hb) = gf_u.word [L98] hb &= 0x7fffffffL VAL [\old(x)=8589934610, \old(y)=8589934611, a=8589934610, b=8589934611, ha=-251658240, hb=1, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934610, y=8589934611] [L99] COND TRUE hb > ha [L100] a = y [L101] b = x [L102] j = ha [L103] ha = hb [L104] hb = j VAL [\old(x)=8589934610, \old(y)=8589934611, a=8589934611, b=8589934610, ha=1, hb=-251658240, j=-251658240, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934610, y=8589934611] [L110] ieee_float_shape_type sf_u; VAL [\old(x)=8589934610, \old(y)=8589934611, a=8589934611, b=8589934610, ha=1, hb=-251658240, j=-251658240, one_sqrt=1, sf_u={8:0}, tiny_sqrt=1/1000000000000000000000000000000, x=8589934610, y=8589934611] [L111] sf_u.word = (ha) VAL [\old(x)=8589934610, \old(y)=8589934611, a=8589934611, b=8589934610, ha=1, hb=-251658240, j=-251658240, one_sqrt=1, sf_u={8:0}, tiny_sqrt=1/1000000000000000000000000000000, x=8589934610, y=8589934611] [L112] EXPR sf_u.value VAL [\old(x)=8589934610, \old(y)=8589934611, a=8589934611, b=8589934610, ha=1, hb=-251658240, j=-251658240, one_sqrt=1, sf_u={8:0}, sf_u.value=8589934614, tiny_sqrt=1/1000000000000000000000000000000, x=8589934610, y=8589934611] [L112] (a) = sf_u.value [L115] ieee_float_shape_type sf_u; VAL [\old(x)=8589934610, \old(y)=8589934611, a=8589934614, b=8589934610, ha=1, hb=-251658240, j=-251658240, one_sqrt=1, sf_u={9:0}, tiny_sqrt=1/1000000000000000000000000000000, x=8589934610, y=8589934611] [L116] sf_u.word = (hb) VAL [\old(x)=8589934610, \old(y)=8589934611, a=8589934614, b=8589934610, ha=1, hb=-251658240, j=-251658240, one_sqrt=1, sf_u={9:0}, tiny_sqrt=1/1000000000000000000000000000000, x=8589934610, y=8589934611] [L117] EXPR sf_u.value VAL [\old(x)=8589934610, \old(y)=8589934611, a=8589934614, b=8589934610, ha=1, hb=-251658240, j=-251658240, one_sqrt=1, sf_u={9:0}, sf_u.value=8589934612, tiny_sqrt=1/1000000000000000000000000000000, x=8589934610, y=8589934611] [L117] (b) = sf_u.value [L119] COND TRUE (ha - hb) > 0xf000000L [L120] return a + b; VAL [\old(x)=8589934610, \old(y)=8589934611, a=8589934614, b=8589934612, ha=1, hb=-251658240, j=-251658240, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934610, y=8589934611] [L234] RET, EXPR __ieee754_hypotf(x, y) [L234] float res = __ieee754_hypotf(x, y); [L236] CALL, EXPR isinf_float(res) [L214] __int32_t ix; VAL [\old(x)=8589934613, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934613] [L216] ieee_float_shape_type gf_u; VAL [\old(x)=8589934613, gf_u={5:0}, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934613] [L217] gf_u.value = (x) VAL [\old(x)=8589934613, gf_u={5:0}, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934613] [L218] EXPR gf_u.word VAL [\old(x)=8589934613, gf_u={5:0}, gf_u.word=4294967295, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934613] [L218] (ix) = gf_u.word [L220] ix &= 0x7fffffff [L221] return ((ix) == 0x7f800000L); VAL [\old(x)=8589934613, \result=0, ix=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934613] [L236] RET, EXPR isinf_float(res) [L236] COND TRUE !isinf_float(res) [L237] reach_error() VAL [one_sqrt=1, res=8589934613, tiny_sqrt=1/1000000000000000000000000000000, x=8589934610, y=8589934611] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 224]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 209 locations, 66 error locations. Started 1 CEGAR loops. OverallTime: 6.2s, OverallIterations: 23, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 66 mSDsluCounter, 7350 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2838 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1762 IncrementalHoareTripleChecker+Invalid, 1784 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 4512 mSDtfsCounter, 1762 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=209occurred in iteration=0, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 22 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 586 NumberOfCodeBlocks, 586 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 528 ConstructedInterpolants, 0 QuantifiedInterpolants, 660 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-10-15 16:46:15,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...