/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-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ntdrivers/cdaudio.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:49:57,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:49:57,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:49:57,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 14:49:57,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 14:49:57,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 14:49:57,428 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 14:49:57,446 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 14:49:57,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 14:49:57,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 14:49:57,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 14:49:57,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 14:49:57,459 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 14:49:57,461 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 14:49:57,463 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 14:49:57,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 14:49:57,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 14:49:57,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 14:49:57,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 14:49:57,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 14:49:57,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 14:49:57,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 14:49:57,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 14:49:57,489 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 14:49:57,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 14:49:57,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 14:49:57,498 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 14:49:57,499 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 14:49:57,502 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 14:49:57,503 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 14:49:57,503 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 14:49:57,504 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 14:49:57,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 14:49:57,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 14:49:57,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 14:49:57,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 14:49:57,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 14:49:57,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 14:49:57,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:49:57,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:49:57,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:49:57,512 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 14:49:57,569 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:49:57,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:49:57,570 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:49:57,571 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:49:57,573 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:49:57,573 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:49:57,575 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:49:57,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:49:57,576 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:49:57,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:49:57,577 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:49:57,577 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:49:57,578 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:49:57,578 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:49:57,578 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:49:57,578 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:49:57,578 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:49:57,578 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:49:57,579 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:49:57,579 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:49:57,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:49:57,579 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:49:57,579 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:49:57,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:49:57,580 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:49:57,580 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:49:57,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:49:57,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:49:57,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:49:57,581 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:49:57,581 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:49:57,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:49:57,582 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:49:57,582 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:49:57,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:49:57,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:49:57,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:49:57,982 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:49:57,983 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:49:57,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers/cdaudio.i.cil-1.c [2022-10-16 14:49:58,061 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bf461116/1c8ae77922b24ef99926c67569d05cec/FLAG1ad076f6c [2022-10-16 14:49:59,075 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:49:59,076 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers/cdaudio.i.cil-1.c [2022-10-16 14:49:59,130 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bf461116/1c8ae77922b24ef99926c67569d05cec/FLAG1ad076f6c [2022-10-16 14:49:59,459 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bf461116/1c8ae77922b24ef99926c67569d05cec [2022-10-16 14:49:59,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:49:59,469 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:49:59,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:49:59,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:49:59,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:49:59,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:49:59" (1/1) ... [2022-10-16 14:49:59,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14b6ecdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:59, skipping insertion in model container [2022-10-16 14:49:59,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:49:59" (1/1) ... [2022-10-16 14:49:59,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:49:59,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:50:00,342 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/ntdrivers/cdaudio.i.cil-1.c[90162,90175] [2022-10-16 14:50:01,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:50:01,322 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:50:01,461 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/ntdrivers/cdaudio.i.cil-1.c[90162,90175] [2022-10-16 14:50:01,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:50:01,944 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:50:01,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:50:01 WrapperNode [2022-10-16 14:50:01,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:50:01,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:50:01,947 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:50:01,947 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:50:01,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:50:01" (1/1) ... [2022-10-16 14:50:02,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:50:01" (1/1) ... [2022-10-16 14:50:02,199 INFO L138 Inliner]: procedures = 120, calls = 2195, calls flagged for inlining = 23, calls inlined = 19, statements flattened = 2398 [2022-10-16 14:50:02,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:50:02,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:50:02,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:50:02,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:50:02,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:50:01" (1/1) ... [2022-10-16 14:50:02,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:50:01" (1/1) ... [2022-10-16 14:50:02,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:50:01" (1/1) ... [2022-10-16 14:50:02,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:50:01" (1/1) ... [2022-10-16 14:50:02,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:50:01" (1/1) ... [2022-10-16 14:50:02,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:50:01" (1/1) ... [2022-10-16 14:50:02,397 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:50:01" (1/1) ... [2022-10-16 14:50:02,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:50:01" (1/1) ... [2022-10-16 14:50:02,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:50:02,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:50:02,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:50:02,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:50:02,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:50:01" (1/1) ... [2022-10-16 14:50:02,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:50:02,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:50:02,483 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) [2022-10-16 14:50:02,511 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 [2022-10-16 14:50:02,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-16 14:50:02,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-16 14:50:02,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-16 14:50:02,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 14:50:02,554 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-10-16 14:50:02,554 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-10-16 14:50:02,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-16 14:50:02,554 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-16 14:50:02,554 INFO L130 BoogieDeclarations]: Found specification of procedure MmLockPagableDataSection [2022-10-16 14:50:02,555 INFO L138 BoogieDeclarations]: Found implementation of procedure MmLockPagableDataSection [2022-10-16 14:50:02,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 14:50:02,555 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioIsPlayActive [2022-10-16 14:50:02,555 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioIsPlayActive [2022-10-16 14:50:02,555 INFO L130 BoogieDeclarations]: Found specification of procedure IoOpenDeviceRegistryKey [2022-10-16 14:50:02,555 INFO L138 BoogieDeclarations]: Found implementation of procedure IoOpenDeviceRegistryKey [2022-10-16 14:50:02,555 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-10-16 14:50:02,556 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-10-16 14:50:02,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-16 14:50:02,556 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-16 14:50:02,556 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_malloc [2022-10-16 14:50:02,556 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_malloc [2022-10-16 14:50:02,556 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-10-16 14:50:02,556 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-10-16 14:50:02,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 14:50:02,559 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2022-10-16 14:50:02,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2022-10-16 14:50:02,559 INFO L130 BoogieDeclarations]: Found specification of procedure SendSrbSynchronous [2022-10-16 14:50:02,559 INFO L138 BoogieDeclarations]: Found implementation of procedure SendSrbSynchronous [2022-10-16 14:50:02,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:50:02,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 14:50:02,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 14:50:02,560 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-10-16 14:50:02,560 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-10-16 14:50:02,560 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-16 14:50:02,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 14:50:02,560 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2022-10-16 14:50:02,560 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2022-10-16 14:50:02,560 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSignalCompletion [2022-10-16 14:50:02,561 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSignalCompletion [2022-10-16 14:50:02,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 14:50:02,561 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-10-16 14:50:02,561 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-10-16 14:50:02,561 INFO L130 BoogieDeclarations]: Found specification of procedure HPCdrCompletion [2022-10-16 14:50:02,561 INFO L138 BoogieDeclarations]: Found implementation of procedure HPCdrCompletion [2022-10-16 14:50:02,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:50:02,562 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSendToNextDriver [2022-10-16 14:50:02,562 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSendToNextDriver [2022-10-16 14:50:02,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-16 14:50:02,562 INFO L130 BoogieDeclarations]: Found specification of procedure ExAllocatePoolWithTag [2022-10-16 14:50:02,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ExAllocatePoolWithTag [2022-10-16 14:50:02,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:50:02,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:50:02,563 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioForwardIrpSynchronous [2022-10-16 14:50:02,563 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioForwardIrpSynchronous [2022-10-16 14:50:03,029 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:50:03,032 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:50:03,356 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 14:50:03,391 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-10-16 14:50:03,392 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-10-16 14:50:04,199 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 14:50:04,233 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2022-10-16 14:50:04,233 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2022-10-16 14:50:04,266 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 14:50:04,267 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 14:50:04,269 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 14:50:04,284 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 14:50:04,299 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 14:50:04,310 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 14:50:14,720 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##276: assume false; [2022-10-16 14:50:14,721 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##277: assume !false; [2022-10-16 14:50:14,721 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##504: assume !false; [2022-10-16 14:50:14,721 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##503: assume false; [2022-10-16 14:50:14,721 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3709: CdAudioPnp_#res#1 := 0; [2022-10-16 14:50:14,721 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##172: assume !false; [2022-10-16 14:50:14,721 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##171: assume false; [2022-10-16 14:50:14,722 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##65: assume !false; [2022-10-16 14:50:14,722 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##64: assume false; [2022-10-16 14:50:14,722 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume !false; [2022-10-16 14:50:14,722 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume false; [2022-10-16 14:50:14,722 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##32: assume false; [2022-10-16 14:50:14,722 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##33: assume !false; [2022-10-16 14:50:14,757 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 14:50:14,761 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-10-16 14:50:14,762 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-10-16 14:50:14,802 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:50:14,829 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:50:14,830 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-16 14:50:14,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:50:14 BoogieIcfgContainer [2022-10-16 14:50:14,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:50:14,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:50:14,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:50:14,842 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:50:14,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:49:59" (1/3) ... [2022-10-16 14:50:14,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509a99d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:50:14, skipping insertion in model container [2022-10-16 14:50:14,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:50:01" (2/3) ... [2022-10-16 14:50:14,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509a99d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:50:14, skipping insertion in model container [2022-10-16 14:50:14,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:50:14" (3/3) ... [2022-10-16 14:50:14,847 INFO L112 eAbstractionObserver]: Analyzing ICFG cdaudio.i.cil-1.c [2022-10-16 14:50:14,875 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:50:14,875 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 64 error locations. [2022-10-16 14:50:14,970 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:50:14,979 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5d7c2947, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:50:14,979 INFO L358 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2022-10-16 14:50:14,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 752 states, 555 states have (on average 1.5801801801801802) internal successors, (877), 637 states have internal predecessors, (877), 113 states have call successors, (113), 19 states have call predecessors, (113), 19 states have return successors, (113), 108 states have call predecessors, (113), 113 states have call successors, (113) [2022-10-16 14:50:14,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 14:50:14,995 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:50:14,996 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 14:50:14,997 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [CdAudioSendToNextDriverErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, CdAudioSendToNextDriverErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2022-10-16 14:50:15,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:50:15,003 INFO L85 PathProgramCache]: Analyzing trace with hash 342665073, now seen corresponding path program 1 times [2022-10-16 14:50:15,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:50:15,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427966949] [2022-10-16 14:50:15,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:50:15,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:50:15,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:50:15,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:50:15,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:50:15,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427966949] [2022-10-16 14:50:15,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427966949] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:50:15,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:50:15,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:50:15,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752865825] [2022-10-16 14:50:15,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:50:15,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:50:15,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:50:15,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:50:15,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:50:15,716 INFO L87 Difference]: Start difference. First operand has 752 states, 555 states have (on average 1.5801801801801802) internal successors, (877), 637 states have internal predecessors, (877), 113 states have call successors, (113), 19 states have call predecessors, (113), 19 states have return successors, (113), 108 states have call predecessors, (113), 113 states have call successors, (113) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-10-16 14:50:15,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:50:15,953 INFO L93 Difference]: Finished difference Result 1502 states and 2268 transitions. [2022-10-16 14:50:15,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:50:15,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2022-10-16 14:50:15,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:50:15,978 INFO L225 Difference]: With dead ends: 1502 [2022-10-16 14:50:15,978 INFO L226 Difference]: Without dead ends: 409 [2022-10-16 14:50:15,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:50:16,000 INFO L413 NwaCegarLoop]: 1052 mSDtfsCounter, 13 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3146 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:50:16,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3146 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:50:16,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-10-16 14:50:16,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 399. [2022-10-16 14:50:16,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 295 states have (on average 1.3864406779661016) internal successors, (409), 356 states have internal predecessors, (409), 37 states have call successors, (37), 14 states have call predecessors, (37), 13 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-10-16 14:50:16,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 475 transitions. [2022-10-16 14:50:16,105 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 475 transitions. Word has length 5 [2022-10-16 14:50:16,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:50:16,106 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 475 transitions. [2022-10-16 14:50:16,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-10-16 14:50:16,107 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 475 transitions. [2022-10-16 14:50:16,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 14:50:16,108 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:50:16,108 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-16 14:50:16,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:50:16,109 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [CdAudioSendToNextDriverErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, CdAudioSendToNextDriverErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2022-10-16 14:50:16,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:50:16,110 INFO L85 PathProgramCache]: Analyzing trace with hash 917083565, now seen corresponding path program 1 times [2022-10-16 14:50:16,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:50:16,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081002222] [2022-10-16 14:50:16,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:50:16,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:50:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:50:16,498 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:50:16,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:50:16,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081002222] [2022-10-16 14:50:16,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081002222] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:50:16,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494031091] [2022-10-16 14:50:16,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:50:16,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:50:16,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:50:16,504 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:50:16,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 14:50:16,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:50:16,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:50:16,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:50:16,899 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:50:16,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:50:16,945 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:50:16,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494031091] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:50:16,945 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:50:16,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 14:50:16,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356491807] [2022-10-16 14:50:16,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:50:16,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:50:16,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:50:16,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:50:16,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:50:16,949 INFO L87 Difference]: Start difference. First operand 399 states and 475 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 12 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) [2022-10-16 14:50:17,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:50:17,144 INFO L93 Difference]: Finished difference Result 417 states and 496 transitions. [2022-10-16 14:50:17,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 14:50:17,145 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 12 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 9 [2022-10-16 14:50:17,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:50:17,150 INFO L225 Difference]: With dead ends: 417 [2022-10-16 14:50:17,150 INFO L226 Difference]: Without dead ends: 416 [2022-10-16 14:50:17,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2022-10-16 14:50:17,152 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 29 mSDsluCounter, 2724 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 3182 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:50:17,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 3182 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:50:17,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2022-10-16 14:50:17,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 398. [2022-10-16 14:50:17,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 295 states have (on average 1.383050847457627) internal successors, (408), 355 states have internal predecessors, (408), 37 states have call successors, (37), 14 states have call predecessors, (37), 13 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-10-16 14:50:17,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 474 transitions. [2022-10-16 14:50:17,183 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 474 transitions. Word has length 9 [2022-10-16 14:50:17,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:50:17,184 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 474 transitions. [2022-10-16 14:50:17,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 12 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) [2022-10-16 14:50:17,184 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 474 transitions. [2022-10-16 14:50:17,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 14:50:17,185 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:50:17,185 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-16 14:50:17,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 14:50:17,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:50:17,400 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [CdAudioSendToNextDriverErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, CdAudioSendToNextDriverErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2022-10-16 14:50:17,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:50:17,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1635180182, now seen corresponding path program 1 times [2022-10-16 14:50:17,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:50:17,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770544703] [2022-10-16 14:50:17,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:50:17,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:50:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:50:17,624 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:50:17,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:50:17,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770544703] [2022-10-16 14:50:17,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770544703] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:50:17,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160886336] [2022-10-16 14:50:17,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:50:17,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:50:17,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:50:17,634 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:50:17,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 14:50:17,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:50:17,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:50:17,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:50:17,910 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:50:17,910 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:50:17,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160886336] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:50:17,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:50:17,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:50:17,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286110456] [2022-10-16 14:50:17,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:50:17,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:50:17,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:50:17,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:50:17,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:50:17,913 INFO L87 Difference]: Start difference. First operand 398 states and 474 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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) [2022-10-16 14:50:18,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:50:18,010 INFO L93 Difference]: Finished difference Result 408 states and 484 transitions. [2022-10-16 14:50:18,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:50:18,011 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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 [2022-10-16 14:50:18,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:50:18,014 INFO L225 Difference]: With dead ends: 408 [2022-10-16 14:50:18,014 INFO L226 Difference]: Without dead ends: 407 [2022-10-16 14:50:18,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:50:18,016 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 16 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 1829 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:50:18,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 1829 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:50:18,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-10-16 14:50:18,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 394. [2022-10-16 14:50:18,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 292 states have (on average 1.3835616438356164) internal successors, (404), 351 states have internal predecessors, (404), 37 states have call successors, (37), 14 states have call predecessors, (37), 13 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-10-16 14:50:18,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 470 transitions. [2022-10-16 14:50:18,038 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 470 transitions. Word has length 10 [2022-10-16 14:50:18,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:50:18,038 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 470 transitions. [2022-10-16 14:50:18,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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) [2022-10-16 14:50:18,039 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 470 transitions. [2022-10-16 14:50:18,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 14:50:18,039 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:50:18,039 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:50:18,076 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 14:50:18,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-10-16 14:50:18,255 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [CdAudioSendToNextDriverErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, CdAudioSendToNextDriverErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2022-10-16 14:50:18,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:50:18,256 INFO L85 PathProgramCache]: Analyzing trace with hash 847427475, now seen corresponding path program 1 times [2022-10-16 14:50:18,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:50:18,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457436091] [2022-10-16 14:50:18,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:50:18,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:50:18,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:50:18,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:50:18,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:50:18,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457436091] [2022-10-16 14:50:18,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457436091] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:50:18,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:50:18,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:50:18,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7069864] [2022-10-16 14:50:18,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:50:18,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:50:18,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:50:18,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:50:18,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:50:18,392 INFO L87 Difference]: Start difference. First operand 394 states and 470 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-10-16 14:50:18,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:50:18,458 INFO L93 Difference]: Finished difference Result 407 states and 483 transitions. [2022-10-16 14:50:18,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:50:18,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2022-10-16 14:50:18,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:50:18,462 INFO L225 Difference]: With dead ends: 407 [2022-10-16 14:50:18,462 INFO L226 Difference]: Without dead ends: 405 [2022-10-16 14:50:18,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:50:18,463 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 11 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1367 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:50:18,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1367 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:50:18,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-10-16 14:50:18,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 397. [2022-10-16 14:50:18,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 295 states have (on average 1.3796610169491526) internal successors, (407), 354 states have internal predecessors, (407), 37 states have call successors, (37), 14 states have call predecessors, (37), 13 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-10-16 14:50:18,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 473 transitions. [2022-10-16 14:50:18,481 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 473 transitions. Word has length 11 [2022-10-16 14:50:18,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:50:18,481 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 473 transitions. [2022-10-16 14:50:18,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-10-16 14:50:18,481 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 473 transitions. [2022-10-16 14:50:18,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 14:50:18,482 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:50:18,482 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:50:18,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 14:50:18,483 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [CdAudioSendToNextDriverErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, CdAudioSendToNextDriverErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2022-10-16 14:50:18,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:50:18,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1025456463, now seen corresponding path program 1 times [2022-10-16 14:50:18,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:50:18,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34775736] [2022-10-16 14:50:18,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:50:18,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:50:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:50:18,707 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:50:18,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:50:18,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34775736] [2022-10-16 14:50:18,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34775736] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:50:18,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323977820] [2022-10-16 14:50:18,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:50:18,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:50:18,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:50:18,711 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:50:18,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 14:50:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:50:18,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:50:18,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:50:19,007 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:50:19,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:50:19,048 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:50:19,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323977820] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:50:19,049 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:50:19,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 14:50:19,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137506232] [2022-10-16 14:50:19,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:50:19,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:50:19,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:50:19,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:50:19,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:50:19,052 INFO L87 Difference]: Start difference. First operand 397 states and 473 transitions. Second operand has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 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) [2022-10-16 14:50:19,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:50:19,212 INFO L93 Difference]: Finished difference Result 413 states and 492 transitions. [2022-10-16 14:50:19,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 14:50:19,213 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 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 15 [2022-10-16 14:50:19,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:50:19,216 INFO L225 Difference]: With dead ends: 413 [2022-10-16 14:50:19,216 INFO L226 Difference]: Without dead ends: 412 [2022-10-16 14:50:19,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2022-10-16 14:50:19,218 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 50 mSDsluCounter, 1814 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:50:19,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 2270 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:50:19,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-10-16 14:50:19,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 396. [2022-10-16 14:50:19,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 295 states have (on average 1.376271186440678) internal successors, (406), 353 states have internal predecessors, (406), 37 states have call successors, (37), 14 states have call predecessors, (37), 13 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-10-16 14:50:19,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 472 transitions. [2022-10-16 14:50:19,237 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 472 transitions. Word has length 15 [2022-10-16 14:50:19,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:50:19,237 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 472 transitions. [2022-10-16 14:50:19,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 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) [2022-10-16 14:50:19,238 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 472 transitions. [2022-10-16 14:50:19,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 14:50:19,238 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:50:19,239 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:50:19,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 14:50:19,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:50:19,454 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [CdAudioSendToNextDriverErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, CdAudioSendToNextDriverErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2022-10-16 14:50:19,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:50:19,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1724379674, now seen corresponding path program 1 times [2022-10-16 14:50:19,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:50:19,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472362657] [2022-10-16 14:50:19,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:50:19,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:50:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:50:19,622 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:50:19,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:50:19,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472362657] [2022-10-16 14:50:19,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472362657] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:50:19,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522041718] [2022-10-16 14:50:19,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:50:19,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:50:19,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:50:19,625 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:50:19,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 14:50:19,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:50:19,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:50:19,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:50:19,906 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:50:19,907 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:50:19,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522041718] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:50:19,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:50:19,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:50:19,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543199121] [2022-10-16 14:50:19,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:50:19,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:50:19,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:50:19,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:50:19,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:50:19,909 INFO L87 Difference]: Start difference. First operand 396 states and 472 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-10-16 14:50:20,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:50:20,016 INFO L93 Difference]: Finished difference Result 404 states and 480 transitions. [2022-10-16 14:50:20,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:50:20,017 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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 16 [2022-10-16 14:50:20,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:50:20,020 INFO L225 Difference]: With dead ends: 404 [2022-10-16 14:50:20,020 INFO L226 Difference]: Without dead ends: 403 [2022-10-16 14:50:20,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:50:20,021 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 14 mSDsluCounter, 1363 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1819 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:50:20,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1819 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:50:20,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-10-16 14:50:20,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 392. [2022-10-16 14:50:20,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 292 states have (on average 1.3767123287671232) internal successors, (402), 349 states have internal predecessors, (402), 37 states have call successors, (37), 14 states have call predecessors, (37), 13 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-10-16 14:50:20,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 468 transitions. [2022-10-16 14:50:20,036 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 468 transitions. Word has length 16 [2022-10-16 14:50:20,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:50:20,037 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 468 transitions. [2022-10-16 14:50:20,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-10-16 14:50:20,037 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 468 transitions. [2022-10-16 14:50:20,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 14:50:20,038 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:50:20,038 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:50:20,076 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 14:50:20,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:50:20,251 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [CdAudioSendToNextDriverErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, CdAudioSendToNextDriverErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2022-10-16 14:50:20,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:50:20,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1914567925, now seen corresponding path program 1 times [2022-10-16 14:50:20,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:50:20,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097662] [2022-10-16 14:50:20,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:50:20,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:50:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:50:20,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:50:20,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:50:20,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097662] [2022-10-16 14:50:20,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097662] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:50:20,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:50:20,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:50:20,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723921161] [2022-10-16 14:50:20,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:50:20,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:50:20,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:50:20,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:50:20,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:50:20,391 INFO L87 Difference]: Start difference. First operand 392 states and 468 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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) [2022-10-16 14:50:20,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:50:20,461 INFO L93 Difference]: Finished difference Result 403 states and 479 transitions. [2022-10-16 14:50:20,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:50:20,462 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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 [2022-10-16 14:50:20,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:50:20,465 INFO L225 Difference]: With dead ends: 403 [2022-10-16 14:50:20,465 INFO L226 Difference]: Without dead ends: 401 [2022-10-16 14:50:20,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:50:20,466 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 9 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1361 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:50:20,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1361 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:50:20,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-10-16 14:50:20,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 395. [2022-10-16 14:50:20,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 295 states have (on average 1.3728813559322033) internal successors, (405), 352 states have internal predecessors, (405), 37 states have call successors, (37), 14 states have call predecessors, (37), 13 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-10-16 14:50:20,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 471 transitions. [2022-10-16 14:50:20,482 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 471 transitions. Word has length 17 [2022-10-16 14:50:20,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:50:20,483 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 471 transitions. [2022-10-16 14:50:20,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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) [2022-10-16 14:50:20,483 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 471 transitions. [2022-10-16 14:50:20,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 14:50:20,484 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:50:20,484 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:50:20,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 14:50:20,484 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [CdAudioSendToNextDriverErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, CdAudioSendToNextDriverErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2022-10-16 14:50:20,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:50:20,485 INFO L85 PathProgramCache]: Analyzing trace with hash 150827569, now seen corresponding path program 1 times [2022-10-16 14:50:20,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:50:20,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613877248] [2022-10-16 14:50:20,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:50:20,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:50:20,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:50:20,679 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:50:20,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:50:20,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613877248] [2022-10-16 14:50:20,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613877248] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:50:20,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995660186] [2022-10-16 14:50:20,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:50:20,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:50:20,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:50:20,683 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:50:20,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 14:50:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:50:20,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:50:20,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:50:20,981 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:50:20,981 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:50:21,023 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:50:21,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995660186] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:50:21,023 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:50:21,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 14:50:21,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165636848] [2022-10-16 14:50:21,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:50:21,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:50:21,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:50:21,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:50:21,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:50:21,025 INFO L87 Difference]: Start difference. First operand 395 states and 471 transitions. Second operand has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 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) [2022-10-16 14:50:21,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:50:21,388 INFO L93 Difference]: Finished difference Result 901 states and 1066 transitions. [2022-10-16 14:50:21,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 14:50:21,389 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 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 21 [2022-10-16 14:50:21,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:50:21,395 INFO L225 Difference]: With dead ends: 901 [2022-10-16 14:50:21,396 INFO L226 Difference]: Without dead ends: 900 [2022-10-16 14:50:21,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2022-10-16 14:50:21,398 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 765 mSDsluCounter, 3139 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 3728 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:50:21,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 3728 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:50:21,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2022-10-16 14:50:21,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 394. [2022-10-16 14:50:21,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 295 states have (on average 1.3694915254237288) internal successors, (404), 351 states have internal predecessors, (404), 37 states have call successors, (37), 14 states have call predecessors, (37), 13 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-10-16 14:50:21,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 470 transitions. [2022-10-16 14:50:21,424 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 470 transitions. Word has length 21 [2022-10-16 14:50:21,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:50:21,425 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 470 transitions. [2022-10-16 14:50:21,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 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) [2022-10-16 14:50:21,425 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 470 transitions. [2022-10-16 14:50:21,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 14:50:21,426 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:50:21,426 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:50:21,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 14:50:21,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:50:21,640 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [CdAudioSendToNextDriverErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, CdAudioSendToNextDriverErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2022-10-16 14:50:21,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:50:21,641 INFO L85 PathProgramCache]: Analyzing trace with hash 380687754, now seen corresponding path program 1 times [2022-10-16 14:50:21,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:50:21,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623389053] [2022-10-16 14:50:21,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:50:21,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:50:21,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:50:21,826 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:50:21,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:50:21,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623389053] [2022-10-16 14:50:21,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623389053] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:50:21,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469566869] [2022-10-16 14:50:21,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:50:21,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:50:21,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:50:21,828 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:50:21,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 14:50:22,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:50:22,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:50:22,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:50:22,127 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:50:22,128 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:50:22,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469566869] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:50:22,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:50:22,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:50:22,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647771157] [2022-10-16 14:50:22,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:50:22,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:50:22,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:50:22,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:50:22,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:50:22,130 INFO L87 Difference]: Start difference. First operand 394 states and 470 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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) [2022-10-16 14:50:22,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:50:22,280 INFO L93 Difference]: Finished difference Result 400 states and 476 transitions. [2022-10-16 14:50:22,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:50:22,281 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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 [2022-10-16 14:50:22,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:50:22,284 INFO L225 Difference]: With dead ends: 400 [2022-10-16 14:50:22,284 INFO L226 Difference]: Without dead ends: 399 [2022-10-16 14:50:22,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:50:22,285 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 504 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:50:22,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 1092 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:50:22,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-10-16 14:50:22,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 390. [2022-10-16 14:50:22,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 292 states have (on average 1.36986301369863) internal successors, (400), 347 states have internal predecessors, (400), 37 states have call successors, (37), 14 states have call predecessors, (37), 13 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-10-16 14:50:22,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 466 transitions. [2022-10-16 14:50:22,305 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 466 transitions. Word has length 22 [2022-10-16 14:50:22,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:50:22,305 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 466 transitions. [2022-10-16 14:50:22,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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) [2022-10-16 14:50:22,306 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 466 transitions. [2022-10-16 14:50:22,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 14:50:22,307 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:50:22,307 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] [2022-10-16 14:50:22,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 14:50:22,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:50:22,522 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [CdAudioSendToNextDriverErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, CdAudioSendToNextDriverErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2022-10-16 14:50:22,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:50:22,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1150795807, now seen corresponding path program 1 times [2022-10-16 14:50:22,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:50:22,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949034294] [2022-10-16 14:50:22,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:50:22,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:50:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:50:22,827 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:50:22,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:50:22,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949034294] [2022-10-16 14:50:22,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949034294] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:50:22,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961122299] [2022-10-16 14:50:22,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:50:22,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:50:22,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:50:22,829 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:50:22,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 14:50:23,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:50:23,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:50:23,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:50:23,162 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:50:23,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:50:23,211 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:50:23,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961122299] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:50:23,212 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:50:23,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 14:50:23,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254092217] [2022-10-16 14:50:23,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:50:23,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 14:50:23,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:50:23,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 14:50:23,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:50:23,214 INFO L87 Difference]: Start difference. First operand 390 states and 466 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 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) [2022-10-16 14:50:23,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:50:23,438 INFO L93 Difference]: Finished difference Result 791 states and 945 transitions. [2022-10-16 14:50:23,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 14:50:23,439 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 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 33 [2022-10-16 14:50:23,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:50:23,442 INFO L225 Difference]: With dead ends: 791 [2022-10-16 14:50:23,442 INFO L226 Difference]: Without dead ends: 408 [2022-10-16 14:50:23,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-10-16 14:50:23,445 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 41 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 2257 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:50:23,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 2257 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:50:23,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-10-16 14:50:23,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 402. [2022-10-16 14:50:23,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 304 states have (on average 1.355263157894737) internal successors, (412), 359 states have internal predecessors, (412), 37 states have call successors, (37), 14 states have call predecessors, (37), 13 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-10-16 14:50:23,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 478 transitions. [2022-10-16 14:50:23,465 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 478 transitions. Word has length 33 [2022-10-16 14:50:23,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:50:23,465 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 478 transitions. [2022-10-16 14:50:23,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 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) [2022-10-16 14:50:23,466 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 478 transitions. [2022-10-16 14:50:23,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-16 14:50:23,467 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:50:23,468 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:50:23,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 14:50:23,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:50:23,682 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [CdAudioSendToNextDriverErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, CdAudioSendToNextDriverErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2022-10-16 14:50:23,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:50:23,683 INFO L85 PathProgramCache]: Analyzing trace with hash -500319083, now seen corresponding path program 2 times [2022-10-16 14:50:23,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:50:23,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243121456] [2022-10-16 14:50:23,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:50:23,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:50:23,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:50:24,016 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 14:50:24,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:50:24,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243121456] [2022-10-16 14:50:24,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243121456] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:50:24,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640986336] [2022-10-16 14:50:24,017 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:50:24,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:50:24,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:50:24,018 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:50:24,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 14:50:24,470 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:50:24,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:50:24,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-16 14:50:24,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:50:24,560 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 14:50:24,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:50:24,619 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-10-16 14:50:24,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640986336] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:50:24,619 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:50:24,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 11 [2022-10-16 14:50:24,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159715537] [2022-10-16 14:50:24,620 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:50:24,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 14:50:24,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:50:24,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 14:50:24,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:50:24,622 INFO L87 Difference]: Start difference. First operand 402 states and 478 transitions. Second operand has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 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) [2022-10-16 14:50:24,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:50:24,851 INFO L93 Difference]: Finished difference Result 808 states and 962 transitions. [2022-10-16 14:50:24,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:50:24,852 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 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 45 [2022-10-16 14:50:24,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:50:24,855 INFO L225 Difference]: With dead ends: 808 [2022-10-16 14:50:24,856 INFO L226 Difference]: Without dead ends: 417 [2022-10-16 14:50:24,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 84 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:50:24,858 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 35 mSDsluCounter, 2698 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3151 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:50:24,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3151 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:50:24,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2022-10-16 14:50:24,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 414. [2022-10-16 14:50:24,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 316 states have (on average 1.3417721518987342) internal successors, (424), 371 states have internal predecessors, (424), 37 states have call successors, (37), 14 states have call predecessors, (37), 13 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-10-16 14:50:24,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 490 transitions. [2022-10-16 14:50:24,878 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 490 transitions. Word has length 45 [2022-10-16 14:50:24,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:50:24,879 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 490 transitions. [2022-10-16 14:50:24,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 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) [2022-10-16 14:50:24,879 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 490 transitions. [2022-10-16 14:50:24,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 14:50:24,881 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:50:24,881 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:50:24,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 14:50:25,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-16 14:50:25,097 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [CdAudioSendToNextDriverErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, CdAudioSendToNextDriverErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2022-10-16 14:50:25,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:50:25,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1598138953, now seen corresponding path program 3 times [2022-10-16 14:50:25,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:50:25,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621451445] [2022-10-16 14:50:25,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:50:25,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:50:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:50:25,579 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-16 14:50:25,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:50:25,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621451445] [2022-10-16 14:50:25,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621451445] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:50:25,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754146160] [2022-10-16 14:50:25,580 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:50:25,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:50:25,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:50:25,581 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:50:25,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 14:50:27,661 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-10-16 14:50:27,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:50:27,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 43 conjunts are in the unsatisfiable core [2022-10-16 14:50:27,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:50:27,922 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:50:27,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:50:28,149 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-16 14:50:28,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754146160] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:50:28,149 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:50:28,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 15, 9] total 23 [2022-10-16 14:50:28,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241626108] [2022-10-16 14:50:28,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:50:28,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-10-16 14:50:28,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:50:28,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-10-16 14:50:28,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2022-10-16 14:50:28,152 INFO L87 Difference]: Start difference. First operand 414 states and 490 transitions. Second operand has 23 states, 23 states have (on average 4.130434782608695) internal successors, (95), 23 states have internal predecessors, (95), 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) [2022-10-16 14:50:29,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:50:29,311 INFO L93 Difference]: Finished difference Result 843 states and 1000 transitions. [2022-10-16 14:50:29,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-10-16 14:50:29,312 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.130434782608695) internal successors, (95), 23 states have internal predecessors, (95), 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 57 [2022-10-16 14:50:29,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:50:29,315 INFO L225 Difference]: With dead ends: 843 [2022-10-16 14:50:29,316 INFO L226 Difference]: Without dead ends: 444 [2022-10-16 14:50:29,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 97 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=264, Invalid=1142, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 14:50:29,319 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 120 mSDsluCounter, 6317 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 6772 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 14:50:29,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 6772 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 14:50:29,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-10-16 14:50:29,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 438. [2022-10-16 14:50:29,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 340 states have (on average 1.3176470588235294) internal successors, (448), 395 states have internal predecessors, (448), 37 states have call successors, (37), 14 states have call predecessors, (37), 13 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-10-16 14:50:29,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 514 transitions. [2022-10-16 14:50:29,342 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 514 transitions. Word has length 57 [2022-10-16 14:50:29,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:50:29,342 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 514 transitions. [2022-10-16 14:50:29,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.130434782608695) internal successors, (95), 23 states have internal predecessors, (95), 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) [2022-10-16 14:50:29,342 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 514 transitions. [2022-10-16 14:50:29,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-10-16 14:50:29,344 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:50:29,344 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:50:29,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 14:50:29,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:50:29,560 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [CdAudioSendToNextDriverErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, CdAudioSendToNextDriverErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2022-10-16 14:50:29,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:50:29,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1313649103, now seen corresponding path program 4 times [2022-10-16 14:50:29,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:50:29,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590214767] [2022-10-16 14:50:29,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:50:29,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:50:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:50:30,153 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-10-16 14:50:30,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:50:30,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590214767] [2022-10-16 14:50:30,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590214767] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:50:30,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068443698] [2022-10-16 14:50:30,154 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:50:30,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:50:30,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:50:30,156 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:50:30,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 14:50:30,580 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:50:30,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:50:30,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 14:50:30,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:50:30,671 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-10-16 14:50:30,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:50:30,934 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-10-16 14:50:30,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068443698] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:50:30,935 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:50:30,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-10-16 14:50:30,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36791165] [2022-10-16 14:50:30,935 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:50:30,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 14:50:30,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:50:30,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 14:50:30,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2022-10-16 14:50:30,937 INFO L87 Difference]: Start difference. First operand 438 states and 514 transitions. Second operand has 21 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 21 states have internal predecessors, (65), 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) [2022-10-16 14:50:32,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:50:32,056 INFO L93 Difference]: Finished difference Result 877 states and 1033 transitions. [2022-10-16 14:50:32,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 14:50:32,057 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 21 states have internal predecessors, (65), 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 81 [2022-10-16 14:50:32,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:50:32,060 INFO L225 Difference]: With dead ends: 877 [2022-10-16 14:50:32,060 INFO L226 Difference]: Without dead ends: 458 [2022-10-16 14:50:32,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 151 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=276, Invalid=780, Unknown=0, NotChecked=0, Total=1056 [2022-10-16 14:50:32,063 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 83 mSDsluCounter, 4503 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 4958 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 14:50:32,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 4958 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 14:50:32,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-10-16 14:50:32,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 458. [2022-10-16 14:50:32,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 360 states have (on average 1.3) internal successors, (468), 415 states have internal predecessors, (468), 37 states have call successors, (37), 14 states have call predecessors, (37), 13 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-10-16 14:50:32,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 534 transitions. [2022-10-16 14:50:32,084 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 534 transitions. Word has length 81 [2022-10-16 14:50:32,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:50:32,085 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 534 transitions. [2022-10-16 14:50:32,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 21 states have internal predecessors, (65), 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) [2022-10-16 14:50:32,085 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 534 transitions. [2022-10-16 14:50:32,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-16 14:50:32,086 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:50:32,087 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 7, 7, 7, 7, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:50:32,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 14:50:32,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-16 14:50:32,301 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [CdAudioSendToNextDriverErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, CdAudioSendToNextDriverErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2022-10-16 14:50:32,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:50:32,302 INFO L85 PathProgramCache]: Analyzing trace with hash 664815453, now seen corresponding path program 5 times [2022-10-16 14:50:32,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:50:32,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414084749] [2022-10-16 14:50:32,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:50:32,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:50:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:50:33,715 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-10-16 14:50:33,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:50:33,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414084749] [2022-10-16 14:50:33,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414084749] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:50:33,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833372435] [2022-10-16 14:50:33,716 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:50:33,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:50:33,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:50:33,719 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:50:33,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process