/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/email_spec7_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 22:50:23,532 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 22:50:23,579 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 22:50:23,582 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 22:50:23,583 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 22:50:23,602 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 22:50:23,602 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 22:50:23,603 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 22:50:23,603 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 22:50:23,605 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 22:50:23,605 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 22:50:23,605 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 22:50:23,606 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 22:50:23,606 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 22:50:23,606 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 22:50:23,606 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 22:50:23,606 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 22:50:23,607 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 22:50:23,607 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 22:50:23,607 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 22:50:23,607 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 22:50:23,608 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 22:50:23,608 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 22:50:23,608 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 22:50:23,608 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 22:50:23,608 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 22:50:23,609 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 22:50:23,609 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 22:50:23,609 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 22:50:23,609 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 22:50:23,609 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 22:50:23,610 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 22:50:23,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:50:23,610 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 22:50:23,610 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 22:50:23,610 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 22:50:23,610 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 22:50:23,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 22:50:23,611 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 22:50:23,611 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 22:50:23,611 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 22:50:23,611 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 22:50:23,611 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 22:50:23,611 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 22:50:23,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 22:50:23,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 22:50:23,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 22:50:23,836 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 22:50:23,836 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 22:50:23,838 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product19.cil.c [2023-12-15 22:50:24,826 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 22:50:25,039 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 22:50:25,042 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product19.cil.c [2023-12-15 22:50:25,063 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/772d5ff36/d40a839b659542378495004f875d49a8/FLAGa6c0bf7fb [2023-12-15 22:50:25,076 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/772d5ff36/d40a839b659542378495004f875d49a8 [2023-12-15 22:50:25,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 22:50:25,079 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 22:50:25,080 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 22:50:25,080 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 22:50:25,084 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 22:50:25,084 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:50:25" (1/1) ... [2023-12-15 22:50:25,085 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5077df9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:25, skipping insertion in model container [2023-12-15 22:50:25,085 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:50:25" (1/1) ... [2023-12-15 22:50:25,131 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 22:50:25,452 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product19.cil.c[37206,37219] [2023-12-15 22:50:25,500 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:50:25,511 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 22:50:25,518 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [48] [2023-12-15 22:50:25,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [79] [2023-12-15 22:50:25,520 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [97] [2023-12-15 22:50:25,520 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [509] [2023-12-15 22:50:25,520 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [547] [2023-12-15 22:50:25,520 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [913] [2023-12-15 22:50:25,520 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1138] [2023-12-15 22:50:25,520 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1236] [2023-12-15 22:50:25,521 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1533] [2023-12-15 22:50:25,521 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1815] [2023-12-15 22:50:25,521 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1824] [2023-12-15 22:50:25,582 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product19.cil.c[37206,37219] [2023-12-15 22:50:25,630 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:50:25,652 INFO L206 MainTranslator]: Completed translation [2023-12-15 22:50:25,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:25 WrapperNode [2023-12-15 22:50:25,653 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 22:50:25,653 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 22:50:25,654 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 22:50:25,654 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 22:50:25,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:25" (1/1) ... [2023-12-15 22:50:25,747 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:25" (1/1) ... [2023-12-15 22:50:25,796 INFO L138 Inliner]: procedures = 127, calls = 184, calls flagged for inlining = 60, calls inlined = 55, statements flattened = 985 [2023-12-15 22:50:25,796 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 22:50:25,797 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 22:50:25,797 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 22:50:25,797 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 22:50:25,805 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:25" (1/1) ... [2023-12-15 22:50:25,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:25" (1/1) ... [2023-12-15 22:50:25,809 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:25" (1/1) ... [2023-12-15 22:50:25,832 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2023-12-15 22:50:25,833 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:25" (1/1) ... [2023-12-15 22:50:25,833 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:25" (1/1) ... [2023-12-15 22:50:25,842 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:25" (1/1) ... [2023-12-15 22:50:25,847 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:25" (1/1) ... [2023-12-15 22:50:25,850 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:25" (1/1) ... [2023-12-15 22:50:25,855 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:25" (1/1) ... [2023-12-15 22:50:25,861 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 22:50:25,862 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 22:50:25,862 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 22:50:25,862 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 22:50:25,862 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:25" (1/1) ... [2023-12-15 22:50:25,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:50:25,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:50:25,900 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 22:50:25,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 22:50:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-15 22:50:25,929 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-15 22:50:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-15 22:50:25,929 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-15 22:50:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-15 22:50:25,929 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-15 22:50:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-15 22:50:25,929 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-15 22:50:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-15 22:50:25,929 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-15 22:50:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-15 22:50:25,929 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-15 22:50:25,930 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-15 22:50:25,930 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-15 22:50:25,930 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-15 22:50:25,930 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-15 22:50:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 22:50:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-15 22:50:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-15 22:50:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-15 22:50:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-15 22:50:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-15 22:50:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-15 22:50:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-15 22:50:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-15 22:50:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-15 22:50:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-15 22:50:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-15 22:50:25,932 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-15 22:50:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-15 22:50:25,932 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-15 22:50:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 22:50:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 22:50:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-15 22:50:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-15 22:50:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-15 22:50:25,932 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-15 22:50:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 22:50:25,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 22:50:26,084 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 22:50:26,086 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 22:50:26,656 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 22:50:26,720 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 22:50:26,720 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 22:50:26,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:50:26 BoogieIcfgContainer [2023-12-15 22:50:26,721 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 22:50:26,723 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 22:50:26,723 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 22:50:26,725 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 22:50:26,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:50:25" (1/3) ... [2023-12-15 22:50:26,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5644ee60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:50:26, skipping insertion in model container [2023-12-15 22:50:26,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:25" (2/3) ... [2023-12-15 22:50:26,727 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5644ee60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:50:26, skipping insertion in model container [2023-12-15 22:50:26,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:50:26" (3/3) ... [2023-12-15 22:50:26,728 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product19.cil.c [2023-12-15 22:50:26,740 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 22:50:26,741 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 22:50:26,793 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 22:50:26,800 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@4f3a1514, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 22:50:26,800 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 22:50:26,806 INFO L276 IsEmpty]: Start isEmpty. Operand has 273 states, 213 states have (on average 1.6056338028169015) internal successors, (342), 215 states have internal predecessors, (342), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-15 22:50:26,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-15 22:50:26,839 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:26,839 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:50:26,840 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:26,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:26,848 INFO L85 PathProgramCache]: Analyzing trace with hash -200313171, now seen corresponding path program 1 times [2023-12-15 22:50:26,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:26,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702457421] [2023-12-15 22:50:26,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:26,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:27,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:27,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:27,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:27,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:27,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:50:27,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:27,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:50:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:27,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:50:27,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:27,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 22:50:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:27,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-15 22:50:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:27,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-15 22:50:27,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:27,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-15 22:50:27,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:27,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-15 22:50:27,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:27,466 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 22:50:27,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:27,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702457421] [2023-12-15 22:50:27,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702457421] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:50:27,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010160673] [2023-12-15 22:50:27,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:27,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:50:27,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:50:27,474 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:50:27,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 22:50:27,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:27,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 921 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 22:50:27,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:50:27,753 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-15 22:50:27,754 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:50:27,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010160673] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:27,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:50:27,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-12-15 22:50:27,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158354755] [2023-12-15 22:50:27,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:27,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 22:50:27,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:27,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 22:50:27,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:50:27,803 INFO L87 Difference]: Start difference. First operand has 273 states, 213 states have (on average 1.6056338028169015) internal successors, (342), 215 states have internal predecessors, (342), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 22:50:27,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:27,910 INFO L93 Difference]: Finished difference Result 401 states and 615 transitions. [2023-12-15 22:50:27,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 22:50:27,912 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 79 [2023-12-15 22:50:27,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:27,923 INFO L225 Difference]: With dead ends: 401 [2023-12-15 22:50:27,923 INFO L226 Difference]: Without dead ends: 270 [2023-12-15 22:50:27,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:50:27,930 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:27,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 407 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:50:27,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2023-12-15 22:50:27,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2023-12-15 22:50:27,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 211 states have (on average 1.5876777251184835) internal successors, (335), 212 states have internal predecessors, (335), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-12-15 22:50:27,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 418 transitions. [2023-12-15 22:50:27,987 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 418 transitions. Word has length 79 [2023-12-15 22:50:27,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:27,988 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 418 transitions. [2023-12-15 22:50:27,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 22:50:27,989 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 418 transitions. [2023-12-15 22:50:27,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-15 22:50:27,996 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:27,997 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:50:28,005 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-15 22:50:28,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-15 22:50:28,200 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:28,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:28,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1688298610, now seen corresponding path program 1 times [2023-12-15 22:50:28,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:28,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625203544] [2023-12-15 22:50:28,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:28,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:28,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:28,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:28,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:28,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:28,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:50:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:28,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:50:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:28,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:50:28,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:28,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 22:50:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:28,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 22:50:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:28,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 22:50:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:28,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:50:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:28,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 22:50:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:28,443 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 22:50:28,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:28,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625203544] [2023-12-15 22:50:28,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625203544] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:50:28,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015388217] [2023-12-15 22:50:28,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:28,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:50:28,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:50:28,462 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:50:28,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 22:50:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:28,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 22:50:28,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:50:28,754 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-15 22:50:28,754 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:50:28,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015388217] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:28,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:50:28,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-15 22:50:28,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951490746] [2023-12-15 22:50:28,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:28,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:50:28,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:28,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:50:28,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:50:28,757 INFO L87 Difference]: Start difference. First operand 270 states and 418 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 22:50:28,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:28,820 INFO L93 Difference]: Finished difference Result 397 states and 602 transitions. [2023-12-15 22:50:28,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:50:28,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 80 [2023-12-15 22:50:28,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:28,826 INFO L225 Difference]: With dead ends: 397 [2023-12-15 22:50:28,826 INFO L226 Difference]: Without dead ends: 272 [2023-12-15 22:50:28,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:50:28,833 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 0 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:28,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 807 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:50:28,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2023-12-15 22:50:28,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2023-12-15 22:50:28,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 213 states have (on average 1.5821596244131455) internal successors, (337), 214 states have internal predecessors, (337), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-12-15 22:50:28,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 420 transitions. [2023-12-15 22:50:28,856 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 420 transitions. Word has length 80 [2023-12-15 22:50:28,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:28,859 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 420 transitions. [2023-12-15 22:50:28,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 22:50:28,861 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 420 transitions. [2023-12-15 22:50:28,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-15 22:50:28,864 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:28,864 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:50:28,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 22:50:29,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-15 22:50:29,077 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:29,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:29,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1495994238, now seen corresponding path program 1 times [2023-12-15 22:50:29,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:29,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370785871] [2023-12-15 22:50:29,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:29,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:29,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:29,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:29,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:29,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:29,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:50:29,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:29,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:50:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:29,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:50:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:29,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 22:50:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:29,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 22:50:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:29,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-15 22:50:29,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:29,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-15 22:50:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:29,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 22:50:29,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:29,266 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:50:29,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:29,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370785871] [2023-12-15 22:50:29,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370785871] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:50:29,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485391626] [2023-12-15 22:50:29,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:29,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:50:29,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:50:29,268 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:50:29,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 22:50:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:29,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 934 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 22:50:29,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:50:29,531 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-15 22:50:29,531 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:50:29,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485391626] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:29,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:50:29,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-15 22:50:29,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276582622] [2023-12-15 22:50:29,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:29,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:50:29,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:29,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:50:29,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:50:29,538 INFO L87 Difference]: Start difference. First operand 272 states and 420 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 22:50:29,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:29,585 INFO L93 Difference]: Finished difference Result 574 states and 899 transitions. [2023-12-15 22:50:29,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:50:29,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 85 [2023-12-15 22:50:29,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:29,589 INFO L225 Difference]: With dead ends: 574 [2023-12-15 22:50:29,589 INFO L226 Difference]: Without dead ends: 324 [2023-12-15 22:50:29,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:50:29,592 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 102 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:29,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 774 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:50:29,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2023-12-15 22:50:29,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 319. [2023-12-15 22:50:29,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 249 states have (on average 1.5943775100401607) internal successors, (397), 250 states have internal predecessors, (397), 53 states have call successors, (53), 16 states have call predecessors, (53), 16 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-15 22:50:29,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 502 transitions. [2023-12-15 22:50:29,623 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 502 transitions. Word has length 85 [2023-12-15 22:50:29,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:29,623 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 502 transitions. [2023-12-15 22:50:29,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 22:50:29,623 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 502 transitions. [2023-12-15 22:50:29,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-15 22:50:29,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:29,625 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:50:29,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 22:50:29,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:50:29,832 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:29,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:29,833 INFO L85 PathProgramCache]: Analyzing trace with hash 148472143, now seen corresponding path program 1 times [2023-12-15 22:50:29,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:29,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612575577] [2023-12-15 22:50:29,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:29,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:29,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:29,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:29,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:29,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:29,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:29,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:50:29,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:29,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:50:29,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:29,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:50:29,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:29,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 22:50:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:29,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-15 22:50:29,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:29,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:50:29,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:29,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 22:50:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:29,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 22:50:29,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:29,985 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:50:29,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:29,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612575577] [2023-12-15 22:50:29,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612575577] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:50:29,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914163026] [2023-12-15 22:50:29,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:29,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:50:29,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:50:29,987 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:50:30,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 22:50:30,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 939 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-15 22:50:30,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:50:30,269 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-15 22:50:30,270 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:50:30,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914163026] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:30,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:50:30,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-12-15 22:50:30,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793106837] [2023-12-15 22:50:30,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:30,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:50:30,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:30,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:50:30,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:50:30,272 INFO L87 Difference]: Start difference. First operand 319 states and 502 transitions. Second operand has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-15 22:50:30,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:30,361 INFO L93 Difference]: Finished difference Result 633 states and 998 transitions. [2023-12-15 22:50:30,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 22:50:30,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 86 [2023-12-15 22:50:30,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:30,364 INFO L225 Difference]: With dead ends: 633 [2023-12-15 22:50:30,364 INFO L226 Difference]: Without dead ends: 321 [2023-12-15 22:50:30,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:50:30,366 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 8 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:30,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1569 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:50:30,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2023-12-15 22:50:30,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2023-12-15 22:50:30,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 250 states have (on average 1.592) internal successors, (398), 252 states have internal predecessors, (398), 53 states have call successors, (53), 16 states have call predecessors, (53), 17 states have return successors, (54), 52 states have call predecessors, (54), 52 states have call successors, (54) [2023-12-15 22:50:30,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 505 transitions. [2023-12-15 22:50:30,376 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 505 transitions. Word has length 86 [2023-12-15 22:50:30,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:30,376 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 505 transitions. [2023-12-15 22:50:30,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-15 22:50:30,377 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 505 transitions. [2023-12-15 22:50:30,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-15 22:50:30,378 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:30,378 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:50:30,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 22:50:30,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:50:30,585 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:30,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:30,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1324664892, now seen corresponding path program 1 times [2023-12-15 22:50:30,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:30,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328879644] [2023-12-15 22:50:30,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:30,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:30,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:30,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-15 22:50:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-15 22:50:30,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-15 22:50:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:50:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 22:50:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 22:50:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 22:50:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,730 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-15 22:50:30,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:30,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328879644] [2023-12-15 22:50:30,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328879644] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:50:30,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30733849] [2023-12-15 22:50:30,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:30,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:50:30,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:50:30,731 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:50:30,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 22:50:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 940 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-15 22:50:30,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:50:30,970 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-15 22:50:30,970 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:50:30,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30733849] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:30,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:50:30,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-12-15 22:50:30,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181487769] [2023-12-15 22:50:30,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:30,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:50:30,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:30,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:50:30,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-12-15 22:50:30,971 INFO L87 Difference]: Start difference. First operand 321 states and 505 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-15 22:50:31,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:31,041 INFO L93 Difference]: Finished difference Result 635 states and 1003 transitions. [2023-12-15 22:50:31,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 22:50:31,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 87 [2023-12-15 22:50:31,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:31,043 INFO L225 Difference]: With dead ends: 635 [2023-12-15 22:50:31,043 INFO L226 Difference]: Without dead ends: 323 [2023-12-15 22:50:31,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-15 22:50:31,044 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 8 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:31,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1555 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:50:31,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2023-12-15 22:50:31,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2023-12-15 22:50:31,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 251 states have (on average 1.5896414342629481) internal successors, (399), 254 states have internal predecessors, (399), 53 states have call successors, (53), 16 states have call predecessors, (53), 18 states have return successors, (59), 52 states have call predecessors, (59), 52 states have call successors, (59) [2023-12-15 22:50:31,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 511 transitions. [2023-12-15 22:50:31,062 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 511 transitions. Word has length 87 [2023-12-15 22:50:31,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:31,062 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 511 transitions. [2023-12-15 22:50:31,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-15 22:50:31,062 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 511 transitions. [2023-12-15 22:50:31,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-15 22:50:31,065 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:31,065 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:50:31,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-15 22:50:31,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:50:31,272 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:31,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:31,273 INFO L85 PathProgramCache]: Analyzing trace with hash 297395031, now seen corresponding path program 1 times [2023-12-15 22:50:31,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:31,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830635802] [2023-12-15 22:50:31,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:31,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:31,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:31,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:31,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:31,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:31,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:31,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:31,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:31,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:31,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 22:50:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:31,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-15 22:50:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:31,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-15 22:50:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:31,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-15 22:50:31,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:31,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-15 22:50:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:31,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-15 22:50:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:31,389 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:50:31,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:31,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830635802] [2023-12-15 22:50:31,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830635802] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:31,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:31,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:50:31,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81297449] [2023-12-15 22:50:31,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:31,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:50:31,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:31,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:50:31,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:50:31,390 INFO L87 Difference]: Start difference. First operand 323 states and 511 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-15 22:50:32,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:32,714 INFO L93 Difference]: Finished difference Result 751 states and 1200 transitions. [2023-12-15 22:50:32,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 22:50:32,714 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 88 [2023-12-15 22:50:32,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:32,718 INFO L225 Difference]: With dead ends: 751 [2023-12-15 22:50:32,719 INFO L226 Difference]: Without dead ends: 447 [2023-12-15 22:50:32,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:50:32,721 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 888 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2232 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 2483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 2232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:32,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 963 Invalid, 2483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 2232 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-15 22:50:32,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2023-12-15 22:50:32,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 323. [2023-12-15 22:50:32,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 251 states have (on average 1.5896414342629481) internal successors, (399), 254 states have internal predecessors, (399), 53 states have call successors, (53), 16 states have call predecessors, (53), 18 states have return successors, (58), 52 states have call predecessors, (58), 52 states have call successors, (58) [2023-12-15 22:50:32,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 510 transitions. [2023-12-15 22:50:32,758 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 510 transitions. Word has length 88 [2023-12-15 22:50:32,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:32,758 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 510 transitions. [2023-12-15 22:50:32,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-15 22:50:32,758 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 510 transitions. [2023-12-15 22:50:32,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-15 22:50:32,759 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:32,759 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:50:32,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 22:50:32,760 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:32,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:32,760 INFO L85 PathProgramCache]: Analyzing trace with hash 960377390, now seen corresponding path program 2 times [2023-12-15 22:50:32,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:32,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967369471] [2023-12-15 22:50:32,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:32,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:32,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:32,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:32,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:32,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:32,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:32,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:32,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:32,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:32,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 22:50:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:32,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 22:50:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:32,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-15 22:50:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:32,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:50:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:32,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 22:50:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:32,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 22:50:32,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:32,904 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:50:32,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:32,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967369471] [2023-12-15 22:50:32,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967369471] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:32,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:32,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:50:32,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720148817] [2023-12-15 22:50:32,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:32,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:50:32,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:32,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:50:32,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:50:32,906 INFO L87 Difference]: Start difference. First operand 323 states and 510 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-15 22:50:34,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:34,239 INFO L93 Difference]: Finished difference Result 753 states and 1203 transitions. [2023-12-15 22:50:34,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 22:50:34,240 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 89 [2023-12-15 22:50:34,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:34,242 INFO L225 Difference]: With dead ends: 753 [2023-12-15 22:50:34,242 INFO L226 Difference]: Without dead ends: 449 [2023-12-15 22:50:34,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:50:34,244 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 883 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2249 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 2496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 2249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:34,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 963 Invalid, 2496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 2249 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-15 22:50:34,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2023-12-15 22:50:34,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 325. [2023-12-15 22:50:34,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 252 states have (on average 1.5873015873015872) internal successors, (400), 256 states have internal predecessors, (400), 53 states have call successors, (53), 16 states have call predecessors, (53), 19 states have return successors, (60), 52 states have call predecessors, (60), 52 states have call successors, (60) [2023-12-15 22:50:34,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 513 transitions. [2023-12-15 22:50:34,268 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 513 transitions. Word has length 89 [2023-12-15 22:50:34,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:34,268 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 513 transitions. [2023-12-15 22:50:34,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-15 22:50:34,268 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 513 transitions. [2023-12-15 22:50:34,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-15 22:50:34,270 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:34,270 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:50:34,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 22:50:34,270 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:34,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:34,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1025166894, now seen corresponding path program 1 times [2023-12-15 22:50:34,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:34,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712424717] [2023-12-15 22:50:34,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:34,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:34,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:34,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:34,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:34,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:34,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:34,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:34,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:34,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:34,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:34,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:34,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:34,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 22:50:34,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:34,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 22:50:34,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:34,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-15 22:50:34,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:34,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-15 22:50:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:34,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 22:50:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:34,447 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-15 22:50:34,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:34,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712424717] [2023-12-15 22:50:34,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712424717] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:34,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:34,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-15 22:50:34,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166796586] [2023-12-15 22:50:34,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:34,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-15 22:50:34,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:34,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-15 22:50:34,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:50:34,449 INFO L87 Difference]: Start difference. First operand 325 states and 513 transitions. Second operand has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-12-15 22:50:36,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:36,263 INFO L93 Difference]: Finished difference Result 751 states and 1198 transitions. [2023-12-15 22:50:36,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 22:50:36,263 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 90 [2023-12-15 22:50:36,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:36,266 INFO L225 Difference]: With dead ends: 751 [2023-12-15 22:50:36,266 INFO L226 Difference]: Without dead ends: 449 [2023-12-15 22:50:36,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-15 22:50:36,267 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 896 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3652 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 3916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 3652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:36,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 1332 Invalid, 3916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 3652 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-15 22:50:36,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2023-12-15 22:50:36,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 325. [2023-12-15 22:50:36,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 252 states have (on average 1.5873015873015872) internal successors, (400), 256 states have internal predecessors, (400), 53 states have call successors, (53), 16 states have call predecessors, (53), 19 states have return successors, (59), 52 states have call predecessors, (59), 52 states have call successors, (59) [2023-12-15 22:50:36,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 512 transitions. [2023-12-15 22:50:36,290 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 512 transitions. Word has length 90 [2023-12-15 22:50:36,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:36,291 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 512 transitions. [2023-12-15 22:50:36,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-12-15 22:50:36,291 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 512 transitions. [2023-12-15 22:50:36,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 22:50:36,294 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:36,294 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:50:36,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 22:50:36,294 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:36,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:36,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1673509057, now seen corresponding path program 2 times [2023-12-15 22:50:36,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:36,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989849962] [2023-12-15 22:50:36,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:36,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:36,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:36,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:36,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:36,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:36,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:36,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:36,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:36,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:36,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:36,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:36,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-15 22:50:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:36,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-15 22:50:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:36,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-15 22:50:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:36,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 22:50:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:36,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-15 22:50:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:36,478 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-15 22:50:36,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:36,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989849962] [2023-12-15 22:50:36,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989849962] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:36,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:36,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-15 22:50:36,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794062489] [2023-12-15 22:50:36,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:36,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-15 22:50:36,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:36,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-15 22:50:36,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:50:36,480 INFO L87 Difference]: Start difference. First operand 325 states and 512 transitions. Second operand has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 8 states have internal predecessors, (59), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-12-15 22:50:38,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:38,316 INFO L93 Difference]: Finished difference Result 753 states and 1204 transitions. [2023-12-15 22:50:38,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 22:50:38,316 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 8 states have internal predecessors, (59), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 91 [2023-12-15 22:50:38,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:38,319 INFO L225 Difference]: With dead ends: 753 [2023-12-15 22:50:38,319 INFO L226 Difference]: Without dead ends: 451 [2023-12-15 22:50:38,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-15 22:50:38,322 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 893 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3649 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 1330 SdHoareTripleChecker+Invalid, 3910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 3649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:38,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 1330 Invalid, 3910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 3649 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-15 22:50:38,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2023-12-15 22:50:38,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 327. [2023-12-15 22:50:38,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 253 states have (on average 1.5849802371541502) internal successors, (401), 258 states have internal predecessors, (401), 53 states have call successors, (53), 16 states have call predecessors, (53), 20 states have return successors, (64), 52 states have call predecessors, (64), 52 states have call successors, (64) [2023-12-15 22:50:38,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 518 transitions. [2023-12-15 22:50:38,336 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 518 transitions. Word has length 91 [2023-12-15 22:50:38,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:38,336 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 518 transitions. [2023-12-15 22:50:38,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 8 states have internal predecessors, (59), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-12-15 22:50:38,337 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 518 transitions. [2023-12-15 22:50:38,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-15 22:50:38,338 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:38,338 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:50:38,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 22:50:38,338 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:38,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:38,338 INFO L85 PathProgramCache]: Analyzing trace with hash -746396851, now seen corresponding path program 1 times [2023-12-15 22:50:38,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:38,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473635817] [2023-12-15 22:50:38,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:38,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:38,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:38,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:38,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:38,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:38,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:38,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:38,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:38,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:50:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:38,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-15 22:50:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:38,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 22:50:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:38,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 22:50:38,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:38,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 22:50:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:38,439 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:38,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:38,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473635817] [2023-12-15 22:50:38,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473635817] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:50:38,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325552117] [2023-12-15 22:50:38,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:38,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:50:38,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:50:38,440 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:50:38,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-15 22:50:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:38,643 INFO L262 TraceCheckSpWp]: Trace formula consists of 945 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 22:50:38,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:50:38,682 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:38,682 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:50:38,725 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:38,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1325552117] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:50:38,726 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:50:38,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2023-12-15 22:50:38,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595341648] [2023-12-15 22:50:38,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:50:38,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-15 22:50:38,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:38,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-15 22:50:38,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-12-15 22:50:38,728 INFO L87 Difference]: Start difference. First operand 327 states and 518 transitions. Second operand has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 7 states have internal predecessors, (81), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-15 22:50:40,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:40,236 INFO L93 Difference]: Finished difference Result 906 states and 1516 transitions. [2023-12-15 22:50:40,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 22:50:40,237 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 7 states have internal predecessors, (81), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 92 [2023-12-15 22:50:40,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:40,240 INFO L225 Difference]: With dead ends: 906 [2023-12-15 22:50:40,240 INFO L226 Difference]: Without dead ends: 781 [2023-12-15 22:50:40,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:50:40,242 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 1178 mSDsluCounter, 1152 mSDsCounter, 0 mSdLazyCounter, 2423 mSolverCounterSat, 394 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1223 SdHoareTripleChecker+Valid, 1363 SdHoareTripleChecker+Invalid, 2817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 394 IncrementalHoareTripleChecker+Valid, 2423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:40,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1223 Valid, 1363 Invalid, 2817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [394 Valid, 2423 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 22:50:40,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2023-12-15 22:50:40,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 642. [2023-12-15 22:50:40,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 504 states have (on average 1.6388888888888888) internal successors, (826), 509 states have internal predecessors, (826), 117 states have call successors, (117), 16 states have call predecessors, (117), 20 states have return successors, (138), 116 states have call predecessors, (138), 116 states have call successors, (138) [2023-12-15 22:50:40,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 1081 transitions. [2023-12-15 22:50:40,266 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 1081 transitions. Word has length 92 [2023-12-15 22:50:40,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:40,267 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 1081 transitions. [2023-12-15 22:50:40,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 7 states have internal predecessors, (81), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-15 22:50:40,268 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 1081 transitions. [2023-12-15 22:50:40,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-15 22:50:40,270 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:40,271 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:50:40,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-15 22:50:40,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:50:40,478 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:40,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:40,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1078339792, now seen corresponding path program 1 times [2023-12-15 22:50:40,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:40,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347106661] [2023-12-15 22:50:40,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:40,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:40,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:40,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:40,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:40,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:40,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:40,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:40,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:40,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-15 22:50:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:40,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 22:50:40,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:40,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 22:50:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:40,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 22:50:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:40,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 22:50:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:40,570 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:40,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:40,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347106661] [2023-12-15 22:50:40,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347106661] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:40,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:40,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:50:40,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391768928] [2023-12-15 22:50:40,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:40,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:50:40,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:40,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:50:40,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:50:40,572 INFO L87 Difference]: Start difference. First operand 642 states and 1081 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 22:50:41,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:41,694 INFO L93 Difference]: Finished difference Result 1665 states and 2865 transitions. [2023-12-15 22:50:41,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:50:41,694 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 98 [2023-12-15 22:50:41,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:41,699 INFO L225 Difference]: With dead ends: 1665 [2023-12-15 22:50:41,699 INFO L226 Difference]: Without dead ends: 1083 [2023-12-15 22:50:41,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:50:41,701 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 978 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 1602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:41,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [993 Valid, 749 Invalid, 1602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 1301 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-15 22:50:41,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-15 22:50:41,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 954. [2023-12-15 22:50:41,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 752 states have (on average 1.6462765957446808) internal successors, (1238), 757 states have internal predecessors, (1238), 181 states have call successors, (181), 16 states have call predecessors, (181), 20 states have return successors, (212), 180 states have call predecessors, (212), 180 states have call successors, (212) [2023-12-15 22:50:41,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1631 transitions. [2023-12-15 22:50:41,730 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1631 transitions. Word has length 98 [2023-12-15 22:50:41,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:41,730 INFO L495 AbstractCegarLoop]: Abstraction has 954 states and 1631 transitions. [2023-12-15 22:50:41,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 22:50:41,730 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1631 transitions. [2023-12-15 22:50:41,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-15 22:50:41,733 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:41,733 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:50:41,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 22:50:41,733 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:41,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:41,734 INFO L85 PathProgramCache]: Analyzing trace with hash -983733504, now seen corresponding path program 1 times [2023-12-15 22:50:41,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:41,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308710545] [2023-12-15 22:50:41,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:41,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:41,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:41,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:41,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:41,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:41,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:41,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:41,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:41,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 22:50:41,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:41,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-15 22:50:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:41,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 22:50:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:41,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-15 22:50:41,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:41,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-15 22:50:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:41,802 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:41,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:41,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308710545] [2023-12-15 22:50:41,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308710545] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:41,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:41,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:50:41,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422770583] [2023-12-15 22:50:41,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:41,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:50:41,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:41,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:50:41,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:50:41,804 INFO L87 Difference]: Start difference. First operand 954 states and 1631 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 22:50:42,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:42,904 INFO L93 Difference]: Finished difference Result 2414 states and 4183 transitions. [2023-12-15 22:50:42,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:50:42,916 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 99 [2023-12-15 22:50:42,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:42,923 INFO L225 Difference]: With dead ends: 2414 [2023-12-15 22:50:42,923 INFO L226 Difference]: Without dead ends: 1570 [2023-12-15 22:50:42,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:50:42,926 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 975 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 1592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:42,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [990 Valid, 709 Invalid, 1592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-15 22:50:42,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2023-12-15 22:50:42,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1441. [2023-12-15 22:50:42,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1441 states, 1144 states have (on average 1.6503496503496504) internal successors, (1888), 1149 states have internal predecessors, (1888), 276 states have call successors, (276), 16 states have call predecessors, (276), 20 states have return successors, (307), 275 states have call predecessors, (307), 275 states have call successors, (307) [2023-12-15 22:50:42,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1441 states to 1441 states and 2471 transitions. [2023-12-15 22:50:42,993 INFO L78 Accepts]: Start accepts. Automaton has 1441 states and 2471 transitions. Word has length 99 [2023-12-15 22:50:42,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:42,993 INFO L495 AbstractCegarLoop]: Abstraction has 1441 states and 2471 transitions. [2023-12-15 22:50:42,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 22:50:42,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1441 states and 2471 transitions. [2023-12-15 22:50:42,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-15 22:50:42,997 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:42,998 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:50:42,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 22:50:42,998 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:42,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:42,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1668408914, now seen corresponding path program 1 times [2023-12-15 22:50:42,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:42,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245162602] [2023-12-15 22:50:42,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:42,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:43,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:43,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:43,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:43,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:43,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:43,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:43,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:43,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:43,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:43,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:43,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:43,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:43,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-15 22:50:43,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:43,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:50:43,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:43,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-15 22:50:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:43,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 22:50:43,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:43,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-15 22:50:43,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:43,083 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:43,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:43,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245162602] [2023-12-15 22:50:43,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245162602] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:43,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:43,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:50:43,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638095951] [2023-12-15 22:50:43,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:43,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:50:43,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:43,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:50:43,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:50:43,085 INFO L87 Difference]: Start difference. First operand 1441 states and 2471 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 22:50:44,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:44,195 INFO L93 Difference]: Finished difference Result 3516 states and 6142 transitions. [2023-12-15 22:50:44,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:50:44,195 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2023-12-15 22:50:44,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:44,206 INFO L225 Difference]: With dead ends: 3516 [2023-12-15 22:50:44,206 INFO L226 Difference]: Without dead ends: 2305 [2023-12-15 22:50:44,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:50:44,210 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 973 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1277 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 1580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 1277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:44,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 708 Invalid, 1580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 1277 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 22:50:44,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2305 states. [2023-12-15 22:50:44,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2305 to 2176. [2023-12-15 22:50:44,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2176 states, 1756 states have (on average 1.6543280182232347) internal successors, (2905), 1761 states have internal predecessors, (2905), 399 states have call successors, (399), 16 states have call predecessors, (399), 20 states have return successors, (446), 398 states have call predecessors, (446), 398 states have call successors, (446) [2023-12-15 22:50:44,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2176 states to 2176 states and 3750 transitions. [2023-12-15 22:50:44,325 INFO L78 Accepts]: Start accepts. Automaton has 2176 states and 3750 transitions. Word has length 100 [2023-12-15 22:50:44,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:44,325 INFO L495 AbstractCegarLoop]: Abstraction has 2176 states and 3750 transitions. [2023-12-15 22:50:44,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 22:50:44,326 INFO L276 IsEmpty]: Start isEmpty. Operand 2176 states and 3750 transitions. [2023-12-15 22:50:44,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-15 22:50:44,331 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:44,331 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:50:44,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 22:50:44,332 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:44,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:44,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1562424447, now seen corresponding path program 1 times [2023-12-15 22:50:44,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:44,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057350172] [2023-12-15 22:50:44,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:44,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:44,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:44,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:44,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:44,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:44,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:44,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:44,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:44,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:44,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:44,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 22:50:44,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:44,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 22:50:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:44,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 22:50:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:44,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 22:50:44,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:44,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 22:50:44,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:44,405 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:44,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:44,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057350172] [2023-12-15 22:50:44,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057350172] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:44,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:44,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:50:44,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153027864] [2023-12-15 22:50:44,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:44,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:50:44,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:44,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:50:44,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:50:44,406 INFO L87 Difference]: Start difference. First operand 2176 states and 3750 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 22:50:45,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:45,469 INFO L93 Difference]: Finished difference Result 5226 states and 9192 transitions. [2023-12-15 22:50:45,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:50:45,470 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 101 [2023-12-15 22:50:45,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:45,484 INFO L225 Difference]: With dead ends: 5226 [2023-12-15 22:50:45,484 INFO L226 Difference]: Without dead ends: 3477 [2023-12-15 22:50:45,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:50:45,490 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 974 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 1576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:45,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 708 Invalid, 1576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 22:50:45,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3477 states. [2023-12-15 22:50:45,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3477 to 3348. [2023-12-15 22:50:45,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3348 states, 2749 states have (on average 1.6569661695161877) internal successors, (4555), 2754 states have internal predecessors, (4555), 578 states have call successors, (578), 16 states have call predecessors, (578), 20 states have return successors, (651), 577 states have call predecessors, (651), 577 states have call successors, (651) [2023-12-15 22:50:45,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3348 states to 3348 states and 5784 transitions. [2023-12-15 22:50:45,615 INFO L78 Accepts]: Start accepts. Automaton has 3348 states and 5784 transitions. Word has length 101 [2023-12-15 22:50:45,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:45,615 INFO L495 AbstractCegarLoop]: Abstraction has 3348 states and 5784 transitions. [2023-12-15 22:50:45,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 22:50:45,615 INFO L276 IsEmpty]: Start isEmpty. Operand 3348 states and 5784 transitions. [2023-12-15 22:50:45,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-15 22:50:45,622 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:45,622 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:50:45,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 22:50:45,622 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:45,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:45,623 INFO L85 PathProgramCache]: Analyzing trace with hash -595338702, now seen corresponding path program 1 times [2023-12-15 22:50:45,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:45,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574966274] [2023-12-15 22:50:45,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:45,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:45,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:45,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:45,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:45,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:45,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:45,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:45,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:45,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:45,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:45,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-15 22:50:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:45,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-15 22:50:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:45,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 22:50:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:45,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-15 22:50:45,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:45,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-15 22:50:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:45,684 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:45,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:45,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574966274] [2023-12-15 22:50:45,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574966274] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:45,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:45,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:50:45,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280861687] [2023-12-15 22:50:45,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:45,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:50:45,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:45,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:50:45,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:50:45,685 INFO L87 Difference]: Start difference. First operand 3348 states and 5784 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 22:50:46,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:46,832 INFO L93 Difference]: Finished difference Result 8081 states and 14246 transitions. [2023-12-15 22:50:46,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:50:46,832 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 102 [2023-12-15 22:50:46,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:46,852 INFO L225 Difference]: With dead ends: 8081 [2023-12-15 22:50:46,852 INFO L226 Difference]: Without dead ends: 5447 [2023-12-15 22:50:46,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:50:46,859 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 972 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 314 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 1604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 314 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:46,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [987 Valid, 739 Invalid, 1604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [314 Valid, 1290 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 22:50:46,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5447 states. [2023-12-15 22:50:46,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5447 to 5318. [2023-12-15 22:50:46,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5318 states, 4343 states have (on average 1.6454064011052267) internal successors, (7146), 4348 states have internal predecessors, (7146), 954 states have call successors, (954), 16 states have call predecessors, (954), 20 states have return successors, (1071), 953 states have call predecessors, (1071), 953 states have call successors, (1071) [2023-12-15 22:50:47,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5318 states to 5318 states and 9171 transitions. [2023-12-15 22:50:47,008 INFO L78 Accepts]: Start accepts. Automaton has 5318 states and 9171 transitions. Word has length 102 [2023-12-15 22:50:47,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:47,008 INFO L495 AbstractCegarLoop]: Abstraction has 5318 states and 9171 transitions. [2023-12-15 22:50:47,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 22:50:47,009 INFO L276 IsEmpty]: Start isEmpty. Operand 5318 states and 9171 transitions. [2023-12-15 22:50:47,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-15 22:50:47,017 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:47,017 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:50:47,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 22:50:47,018 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:47,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:47,018 INFO L85 PathProgramCache]: Analyzing trace with hash 2089461755, now seen corresponding path program 1 times [2023-12-15 22:50:47,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:47,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797947587] [2023-12-15 22:50:47,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:47,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:47,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:47,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:47,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:47,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:47,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:47,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:47,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:47,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:47,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:47,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 22:50:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:47,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:50:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:47,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-15 22:50:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:47,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 22:50:47,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:47,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-15 22:50:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:47,076 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:47,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:47,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797947587] [2023-12-15 22:50:47,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797947587] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:47,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:47,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:50:47,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017091064] [2023-12-15 22:50:47,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:47,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:50:47,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:47,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:50:47,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:50:47,078 INFO L87 Difference]: Start difference. First operand 5318 states and 9171 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 22:50:48,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:48,208 INFO L93 Difference]: Finished difference Result 13218 states and 23267 transitions. [2023-12-15 22:50:48,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:50:48,209 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2023-12-15 22:50:48,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:48,245 INFO L225 Difference]: With dead ends: 13218 [2023-12-15 22:50:48,245 INFO L226 Difference]: Without dead ends: 8980 [2023-12-15 22:50:48,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:50:48,260 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 970 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 314 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 1610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 314 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:48,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 725 Invalid, 1610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [314 Valid, 1296 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 22:50:48,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8980 states. [2023-12-15 22:50:48,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8980 to 8851. [2023-12-15 22:50:48,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8851 states, 7270 states have (on average 1.6426409903713892) internal successors, (11942), 7275 states have internal predecessors, (11942), 1560 states have call successors, (1560), 16 states have call predecessors, (1560), 20 states have return successors, (1755), 1559 states have call predecessors, (1755), 1559 states have call successors, (1755) [2023-12-15 22:50:48,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8851 states to 8851 states and 15257 transitions. [2023-12-15 22:50:48,589 INFO L78 Accepts]: Start accepts. Automaton has 8851 states and 15257 transitions. Word has length 103 [2023-12-15 22:50:48,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:48,589 INFO L495 AbstractCegarLoop]: Abstraction has 8851 states and 15257 transitions. [2023-12-15 22:50:48,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 22:50:48,590 INFO L276 IsEmpty]: Start isEmpty. Operand 8851 states and 15257 transitions. [2023-12-15 22:50:48,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-15 22:50:48,600 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:48,600 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:50:48,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 22:50:48,600 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:48,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:48,600 INFO L85 PathProgramCache]: Analyzing trace with hash -115582396, now seen corresponding path program 1 times [2023-12-15 22:50:48,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:48,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141899796] [2023-12-15 22:50:48,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:48,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:48,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:48,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:48,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:48,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:48,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:48,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:48,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:48,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:48,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:48,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:48,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:48,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-15 22:50:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:48,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-15 22:50:48,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:48,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 22:50:48,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:48,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 22:50:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:48,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 22:50:48,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:48,667 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:48,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:48,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141899796] [2023-12-15 22:50:48,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141899796] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:48,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:48,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:50:48,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397883193] [2023-12-15 22:50:48,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:48,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:50:48,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:48,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:50:48,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:50:48,669 INFO L87 Difference]: Start difference. First operand 8851 states and 15257 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 22:50:49,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:49,877 INFO L93 Difference]: Finished difference Result 22990 states and 40401 transitions. [2023-12-15 22:50:49,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:50:49,878 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2023-12-15 22:50:49,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:49,930 INFO L225 Difference]: With dead ends: 22990 [2023-12-15 22:50:49,930 INFO L226 Difference]: Without dead ends: 15652 [2023-12-15 22:50:50,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:50:50,007 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 965 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 1639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:50,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 731 Invalid, 1639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 22:50:50,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15652 states. [2023-12-15 22:50:50,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15652 to 15523. [2023-12-15 22:50:50,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15523 states, 12739 states have (on average 1.6330167203077164) internal successors, (20803), 12744 states have internal predecessors, (20803), 2763 states have call successors, (2763), 16 states have call predecessors, (2763), 20 states have return successors, (3102), 2762 states have call predecessors, (3102), 2762 states have call successors, (3102) [2023-12-15 22:50:50,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15523 states to 15523 states and 26668 transitions. [2023-12-15 22:50:50,462 INFO L78 Accepts]: Start accepts. Automaton has 15523 states and 26668 transitions. Word has length 104 [2023-12-15 22:50:50,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:50,463 INFO L495 AbstractCegarLoop]: Abstraction has 15523 states and 26668 transitions. [2023-12-15 22:50:50,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 22:50:50,463 INFO L276 IsEmpty]: Start isEmpty. Operand 15523 states and 26668 transitions. [2023-12-15 22:50:50,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-15 22:50:50,475 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:50,475 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:50:50,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-15 22:50:50,475 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:50,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:50,476 INFO L85 PathProgramCache]: Analyzing trace with hash -125559718, now seen corresponding path program 1 times [2023-12-15 22:50:50,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:50,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616961874] [2023-12-15 22:50:50,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:50,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:50,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:50,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:50,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:50,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:50,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:50,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:50,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:50,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:50,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:50,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:50,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:50:50,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:50,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-15 22:50:50,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:50,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-15 22:50:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:50,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-15 22:50:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:50,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-15 22:50:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:50,537 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:50,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:50,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616961874] [2023-12-15 22:50:50,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616961874] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:50,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:50,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:50:50,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591678664] [2023-12-15 22:50:50,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:50,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:50:50,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:50,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:50:50,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:50:50,539 INFO L87 Difference]: Start difference. First operand 15523 states and 26668 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 22:50:52,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:52,011 INFO L93 Difference]: Finished difference Result 41157 states and 72201 transitions. [2023-12-15 22:50:52,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:50:52,011 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2023-12-15 22:50:52,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:52,100 INFO L225 Difference]: With dead ends: 41157 [2023-12-15 22:50:52,100 INFO L226 Difference]: Without dead ends: 27767 [2023-12-15 22:50:52,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:50:52,125 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 967 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 1575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:52,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [982 Valid, 708 Invalid, 1575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 22:50:52,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27767 states. [2023-12-15 22:50:52,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27767 to 27638. [2023-12-15 22:50:52,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27638 states, 22815 states have (on average 1.629059829059829) internal successors, (37167), 22820 states have internal predecessors, (37167), 4802 states have call successors, (4802), 16 states have call predecessors, (4802), 20 states have return successors, (5415), 4801 states have call predecessors, (5415), 4801 states have call successors, (5415) [2023-12-15 22:50:52,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27638 states to 27638 states and 47384 transitions. [2023-12-15 22:50:52,976 INFO L78 Accepts]: Start accepts. Automaton has 27638 states and 47384 transitions. Word has length 105 [2023-12-15 22:50:52,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:52,976 INFO L495 AbstractCegarLoop]: Abstraction has 27638 states and 47384 transitions. [2023-12-15 22:50:52,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 22:50:52,977 INFO L276 IsEmpty]: Start isEmpty. Operand 27638 states and 47384 transitions. [2023-12-15 22:50:52,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-15 22:50:52,993 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:52,993 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:50:52,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-15 22:50:52,994 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:52,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:52,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1607288418, now seen corresponding path program 1 times [2023-12-15 22:50:52,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:52,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496999213] [2023-12-15 22:50:52,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:52,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:53,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:53,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:53,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:53,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:53,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:53,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:53,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:53,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:53,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:53,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 22:50:53,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:53,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 22:50:53,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:53,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 22:50:53,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:53,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-15 22:50:53,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:53,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-15 22:50:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:53,268 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:53,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:53,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496999213] [2023-12-15 22:50:53,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496999213] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:53,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:53,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:50:53,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422092803] [2023-12-15 22:50:53,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:53,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:50:53,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:53,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:50:53,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:50:53,270 INFO L87 Difference]: Start difference. First operand 27638 states and 47384 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 22:50:55,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:55,125 INFO L93 Difference]: Finished difference Result 75349 states and 131390 transitions. [2023-12-15 22:50:55,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:50:55,125 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2023-12-15 22:50:55,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:55,285 INFO L225 Difference]: With dead ends: 75349 [2023-12-15 22:50:55,286 INFO L226 Difference]: Without dead ends: 50591 [2023-12-15 22:50:55,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:50:55,344 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 961 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 1593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:55,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 715 Invalid, 1593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 22:50:55,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50591 states. [2023-12-15 22:50:56,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50591 to 50462. [2023-12-15 22:50:56,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50462 states, 41924 states have (on average 1.6239147027955347) internal successors, (68081), 41929 states have internal predecessors, (68081), 8517 states have call successors, (8517), 16 states have call predecessors, (8517), 20 states have return successors, (9662), 8516 states have call predecessors, (9662), 8516 states have call successors, (9662) [2023-12-15 22:50:57,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50462 states to 50462 states and 86260 transitions. [2023-12-15 22:50:57,156 INFO L78 Accepts]: Start accepts. Automaton has 50462 states and 86260 transitions. Word has length 106 [2023-12-15 22:50:57,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:57,157 INFO L495 AbstractCegarLoop]: Abstraction has 50462 states and 86260 transitions. [2023-12-15 22:50:57,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 22:50:57,157 INFO L276 IsEmpty]: Start isEmpty. Operand 50462 states and 86260 transitions. [2023-12-15 22:50:57,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-15 22:50:57,175 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:57,175 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:50:57,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-15 22:50:57,176 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:57,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:57,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1384127750, now seen corresponding path program 1 times [2023-12-15 22:50:57,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:57,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094981428] [2023-12-15 22:50:57,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:57,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:57,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:57,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:57,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:57,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:57,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:57,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:57,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:57,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:57,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-15 22:50:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:57,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 22:50:57,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:57,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 22:50:57,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:57,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 22:50:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:57,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 22:50:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:57,268 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:57,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:57,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094981428] [2023-12-15 22:50:57,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094981428] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:57,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:57,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:50:57,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246741526] [2023-12-15 22:50:57,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:57,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:50:57,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:57,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:50:57,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:50:57,270 INFO L87 Difference]: Start difference. First operand 50462 states and 86260 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 22:50:59,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:59,931 INFO L93 Difference]: Finished difference Result 94096 states and 164553 transitions. [2023-12-15 22:50:59,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:50:59,931 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 107 [2023-12-15 22:50:59,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:51:00,170 INFO L225 Difference]: With dead ends: 94096 [2023-12-15 22:51:00,170 INFO L226 Difference]: Without dead ends: 93971 [2023-12-15 22:51:00,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:51:00,201 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 960 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 313 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 313 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 22:51:00,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [975 Valid, 708 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [313 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 22:51:00,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93971 states. [2023-12-15 22:51:02,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93971 to 93842. [2023-12-15 22:51:02,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93842 states, 78505 states have (on average 1.6173746895102223) internal successors, (126972), 78510 states have internal predecessors, (126972), 15316 states have call successors, (15316), 16 states have call predecessors, (15316), 20 states have return successors, (17507), 15315 states have call predecessors, (17507), 15315 states have call successors, (17507) [2023-12-15 22:51:03,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93842 states to 93842 states and 159795 transitions. [2023-12-15 22:51:03,277 INFO L78 Accepts]: Start accepts. Automaton has 93842 states and 159795 transitions. Word has length 107 [2023-12-15 22:51:03,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:51:03,277 INFO L495 AbstractCegarLoop]: Abstraction has 93842 states and 159795 transitions. [2023-12-15 22:51:03,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 22:51:03,277 INFO L276 IsEmpty]: Start isEmpty. Operand 93842 states and 159795 transitions. [2023-12-15 22:51:03,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-15 22:51:03,292 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:51:03,292 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:51:03,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-15 22:51:03,292 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:51:03,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:51:03,293 INFO L85 PathProgramCache]: Analyzing trace with hash 2111082115, now seen corresponding path program 1 times [2023-12-15 22:51:03,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:51:03,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782476278] [2023-12-15 22:51:03,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:51:03,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:51:03,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:51:03,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:51:03,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:51:03,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:51:03,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:51:03,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:51:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:51:03,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:51:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:51:03,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:51:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:51:03,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:51:03,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:51:03,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:51:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:51:03,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-15 22:51:03,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:51:03,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-15 22:51:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:51:03,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-15 22:51:03,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:51:03,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 22:51:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:51:03,667 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:51:03,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:51:03,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782476278] [2023-12-15 22:51:03,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782476278] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:51:03,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:51:03,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:51:03,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62401202] [2023-12-15 22:51:03,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:51:03,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:51:03,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:51:03,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:51:03,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:51:03,670 INFO L87 Difference]: Start difference. First operand 93842 states and 159795 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-15 22:51:06,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:51:06,174 INFO L93 Difference]: Finished difference Result 93964 states and 163270 transitions. [2023-12-15 22:51:06,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-15 22:51:06,175 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2023-12-15 22:51:06,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:51:06,175 INFO L225 Difference]: With dead ends: 93964 [2023-12-15 22:51:06,175 INFO L226 Difference]: Without dead ends: 0 [2023-12-15 22:51:06,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2023-12-15 22:51:06,416 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 875 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 2161 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 2415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 2161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:51:06,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [875 Valid, 975 Invalid, 2415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 2161 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-15 22:51:06,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-15 22:51:06,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-15 22:51:06,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 22:51:06,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-15 22:51:06,427 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2023-12-15 22:51:06,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:51:06,428 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-15 22:51:06,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-15 22:51:06,428 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-15 22:51:06,428 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-15 22:51:06,430 INFO L805 garLoopResultBuilder]: Registering result SAFE for location outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 22:51:06,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-15 22:51:06,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-15 22:51:12,072 WARN L293 SmtUtils]: Spent 5.58s on a formula simplification. DAG size of input: 1122 DAG size of output: 3 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) Received shutdown request... [2023-12-15 22:51:21,275 WARN L619 AbstractCegarLoop]: Verification canceled: while PolyPacSimplificationTermWalker was simplifying a ∨-1092-12-1 term,while PolyPacSimplificationTermWalker was simplifying 6 xjuncts wrt. a ∧-643-12-1 context. [2023-12-15 22:51:21,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-15 22:51:21,304 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 22:51:21,313 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-12-15 22:51:21,314 INFO L158 Benchmark]: Toolchain (without parser) took 56234.45ms. Allocated memory was 266.3MB in the beginning and 5.8GB in the end (delta: 5.5GB). Free memory was 210.2MB in the beginning and 3.1GB in the end (delta: -2.9GB). Peak memory consumption was 2.6GB. Max. memory is 8.0GB. [2023-12-15 22:51:21,314 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 221.2MB. Free memory is still 170.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 22:51:21,314 INFO L158 Benchmark]: CACSL2BoogieTranslator took 572.68ms. Allocated memory is still 266.3MB. Free memory was 209.8MB in the beginning and 169.0MB in the end (delta: 40.9MB). Peak memory consumption was 40.9MB. Max. memory is 8.0GB. [2023-12-15 22:51:21,314 INFO L158 Benchmark]: Boogie Procedure Inliner took 142.94ms. Allocated memory is still 266.3MB. Free memory was 169.0MB in the beginning and 226.2MB in the end (delta: -57.2MB). Peak memory consumption was 6.7MB. Max. memory is 8.0GB. [2023-12-15 22:51:21,314 INFO L158 Benchmark]: Boogie Preprocessor took 64.15ms. Allocated memory is still 266.3MB. Free memory was 226.2MB in the beginning and 219.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-15 22:51:21,315 INFO L158 Benchmark]: RCFGBuilder took 859.14ms. Allocated memory is still 266.3MB. Free memory was 219.4MB in the beginning and 153.8MB in the end (delta: 65.5MB). Peak memory consumption was 65.0MB. Max. memory is 8.0GB. [2023-12-15 22:51:21,315 INFO L158 Benchmark]: TraceAbstraction took 54590.33ms. Allocated memory was 266.3MB in the beginning and 5.8GB in the end (delta: 5.5GB). Free memory was 153.3MB in the beginning and 3.1GB in the end (delta: -3.0GB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. [2023-12-15 22:51:21,316 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 221.2MB. Free memory is still 170.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 572.68ms. Allocated memory is still 266.3MB. Free memory was 209.8MB in the beginning and 169.0MB in the end (delta: 40.9MB). Peak memory consumption was 40.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 142.94ms. Allocated memory is still 266.3MB. Free memory was 169.0MB in the beginning and 226.2MB in the end (delta: -57.2MB). Peak memory consumption was 6.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 64.15ms. Allocated memory is still 266.3MB. Free memory was 226.2MB in the beginning and 219.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 859.14ms. Allocated memory is still 266.3MB. Free memory was 219.4MB in the beginning and 153.8MB in the end (delta: 65.5MB). Peak memory consumption was 65.0MB. Max. memory is 8.0GB. * TraceAbstraction took 54590.33ms. Allocated memory was 266.3MB in the beginning and 5.8GB in the end (delta: 5.5GB). Free memory was 153.3MB in the beginning and 3.1GB in the end (delta: -3.0GB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [48] - GenericResultAtLocation [Line: 79]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [79] - GenericResultAtLocation [Line: 97]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [97] - GenericResultAtLocation [Line: 509]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [509] - GenericResultAtLocation [Line: 547]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [547] - GenericResultAtLocation [Line: 913]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [913] - GenericResultAtLocation [Line: 1138]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1138] - GenericResultAtLocation [Line: 1236]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1236] - GenericResultAtLocation [Line: 1533]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1533] - GenericResultAtLocation [Line: 1815]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1815] - GenericResultAtLocation [Line: 1824]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1824] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while PolyPacSimplificationTermWalker was simplifying a ∧-10-1 term,while PolyPacSimplificationTermWalker was simplifying 10 xjuncts wrt. a ATOM-1 context. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown