/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_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:50:02,651 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:50:02,723 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 05:50:02,727 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:50:02,728 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:50:02,753 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:50:02,754 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:50:02,754 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:50:02,754 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:50:02,758 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:50:02,758 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:50:02,758 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:50:02,759 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:50:02,760 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:50:02,760 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:50:02,760 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:50:02,760 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:50:02,761 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:50:02,761 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:50:02,762 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:50:02,762 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:50:02,762 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:50:02,762 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:50:02,763 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:50:02,763 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:50:02,763 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:50:02,763 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:50:02,763 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:50:02,763 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:50:02,764 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:50:02,764 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:50:02,765 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:50:02,765 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:50:02,765 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:50:02,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:50:02,765 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:50:02,765 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:50:02,765 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:50:02,765 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:50:02,766 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:50:02,766 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:50:02,766 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:50:02,766 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:50:02,767 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:50:02,767 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:50:02,767 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:50:02,767 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:50:02,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:50:03,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:50:03,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:50:03,003 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:50:03,004 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:50:03,005 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product31.cil.c [2023-12-25 05:50:04,197 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:50:04,458 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:50:04,459 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product31.cil.c [2023-12-25 05:50:04,486 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94c48cead/b250d1ed63f3437eaea30e7e8cb654b9/FLAG487478774 [2023-12-25 05:50:04,500 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94c48cead/b250d1ed63f3437eaea30e7e8cb654b9 [2023-12-25 05:50:04,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:50:04,503 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:50:04,506 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:50:04,506 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:50:04,510 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:50:04,510 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:50:04" (1/1) ... [2023-12-25 05:50:04,511 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eee8ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:04, skipping insertion in model container [2023-12-25 05:50:04,511 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:50:04" (1/1) ... [2023-12-25 05:50:04,562 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:50:04,831 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_spec4_product31.cil.c[26985,26998] [2023-12-25 05:50:04,975 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:50:04,998 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:50:05,010 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:50:05,073 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_spec4_product31.cil.c[26985,26998] [2023-12-25 05:50:05,142 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:50:05,194 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:50:05,201 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [48] [2023-12-25 05:50:05,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1128] [2023-12-25 05:50:05,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1137] [2023-12-25 05:50:05,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1503] [2023-12-25 05:50:05,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1810] [2023-12-25 05:50:05,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2222] [2023-12-25 05:50:05,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2580] [2023-12-25 05:50:05,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2607] [2023-12-25 05:50:05,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2742] [2023-12-25 05:50:05,203 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2777] [2023-12-25 05:50:05,203 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2794] [2023-12-25 05:50:05,230 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_spec4_product31.cil.c[26985,26998] [2023-12-25 05:50:05,272 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:50:05,305 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:50:05,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:05 WrapperNode [2023-12-25 05:50:05,306 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:50:05,307 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:50:05,307 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:50:05,307 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:50:05,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:05" (1/1) ... [2023-12-25 05:50:05,364 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:05" (1/1) ... [2023-12-25 05:50:05,430 INFO L138 Inliner]: procedures = 133, calls = 204, calls flagged for inlining = 61, calls inlined = 56, statements flattened = 958 [2023-12-25 05:50:05,430 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:50:05,433 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:50:05,433 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:50:05,433 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:50:05,442 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:05" (1/1) ... [2023-12-25 05:50:05,442 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:05" (1/1) ... [2023-12-25 05:50:05,449 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:05" (1/1) ... [2023-12-25 05:50:05,466 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]. [2023-12-25 05:50:05,467 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:05" (1/1) ... [2023-12-25 05:50:05,467 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:05" (1/1) ... [2023-12-25 05:50:05,498 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:05" (1/1) ... [2023-12-25 05:50:05,504 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:05" (1/1) ... [2023-12-25 05:50:05,508 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:05" (1/1) ... [2023-12-25 05:50:05,510 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:05" (1/1) ... [2023-12-25 05:50:05,516 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:50:05,516 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:50:05,516 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:50:05,516 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:50:05,517 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:05" (1/1) ... [2023-12-25 05:50:05,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:50:05,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:50:05,581 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) [2023-12-25 05:50:05,615 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 [2023-12-25 05:50:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-25 05:50:05,628 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-25 05:50:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-25 05:50:05,628 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-25 05:50:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-25 05:50:05,628 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-25 05:50:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-25 05:50:05,629 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-25 05:50:05,629 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-25 05:50:05,629 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-25 05:50:05,629 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-25 05:50:05,629 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-25 05:50:05,629 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-25 05:50:05,629 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-25 05:50:05,629 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-25 05:50:05,630 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-25 05:50:05,630 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-25 05:50:05,630 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-25 05:50:05,630 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-25 05:50:05,630 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-25 05:50:05,630 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-25 05:50:05,630 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-25 05:50:05,630 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-25 05:50:05,630 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-25 05:50:05,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:50:05,630 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-25 05:50:05,630 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-25 05:50:05,630 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-25 05:50:05,631 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-25 05:50:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-25 05:50:05,631 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-25 05:50:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-25 05:50:05,631 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-25 05:50:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-25 05:50:05,631 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-25 05:50:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:50:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:50:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:50:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:50:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-25 05:50:05,631 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-25 05:50:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-25 05:50:05,632 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-25 05:50:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-25 05:50:05,632 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-25 05:50:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-25 05:50:05,632 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-25 05:50:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-25 05:50:05,632 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-25 05:50:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-25 05:50:05,632 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-25 05:50:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:50:05,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:50:05,809 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:50:05,811 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:50:06,492 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:50:06,580 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:50:06,580 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:50:06,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:50:06 BoogieIcfgContainer [2023-12-25 05:50:06,581 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:50:06,583 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:50:06,583 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:50:06,585 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:50:06,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:50:04" (1/3) ... [2023-12-25 05:50:06,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b095c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:50:06, skipping insertion in model container [2023-12-25 05:50:06,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:05" (2/3) ... [2023-12-25 05:50:06,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b095c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:50:06, skipping insertion in model container [2023-12-25 05:50:06,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:50:06" (3/3) ... [2023-12-25 05:50:06,589 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product31.cil.c [2023-12-25 05:50:06,604 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:50:06,604 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:50:06,666 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:50:06,684 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;@6f049c74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:50:06,684 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:50:06,692 INFO L276 IsEmpty]: Start isEmpty. Operand has 338 states, 254 states have (on average 1.562992125984252) internal successors, (397), 258 states have internal predecessors, (397), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-25 05:50:06,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-25 05:50:06,710 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:06,711 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1] [2023-12-25 05:50:06,711 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:06,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:06,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1185593595, now seen corresponding path program 1 times [2023-12-25 05:50:06,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:06,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [89458118] [2023-12-25 05:50:06,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:06,733 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:06,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:06,735 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:06,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-25 05:50:07,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:07,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:50:07,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:07,092 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:50:07,092 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:07,092 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:07,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [89458118] [2023-12-25 05:50:07,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [89458118] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:07,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:07,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:50:07,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490609] [2023-12-25 05:50:07,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:07,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:50:07,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:07,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:50:07,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:50:07,169 INFO L87 Difference]: Start difference. First operand has 338 states, 254 states have (on average 1.562992125984252) internal successors, (397), 258 states have internal predecessors, (397), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:07,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:07,234 INFO L93 Difference]: Finished difference Result 531 states and 793 transitions. [2023-12-25 05:50:07,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:50:07,244 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 101 [2023-12-25 05:50:07,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:07,254 INFO L225 Difference]: With dead ends: 531 [2023-12-25 05:50:07,254 INFO L226 Difference]: Without dead ends: 335 [2023-12-25 05:50:07,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:50:07,261 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:07,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 495 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:50:07,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2023-12-25 05:50:07,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2023-12-25 05:50:07,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 252 states have (on average 1.5476190476190477) internal successors, (390), 255 states have internal predecessors, (390), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-25 05:50:07,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 507 transitions. [2023-12-25 05:50:07,307 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 507 transitions. Word has length 101 [2023-12-25 05:50:07,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:07,308 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 507 transitions. [2023-12-25 05:50:07,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:07,309 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 507 transitions. [2023-12-25 05:50:07,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 05:50:07,312 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:07,313 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1] [2023-12-25 05:50:07,332 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-25 05:50:07,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:07,523 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:07,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:07,524 INFO L85 PathProgramCache]: Analyzing trace with hash -57490092, now seen corresponding path program 1 times [2023-12-25 05:50:07,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:07,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [77534770] [2023-12-25 05:50:07,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:07,525 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:07,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:07,528 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:07,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-25 05:50:07,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:07,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:50:07,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:07,850 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-25 05:50:07,850 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:07,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:07,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [77534770] [2023-12-25 05:50:07,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [77534770] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:07,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:07,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:50:07,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851233911] [2023-12-25 05:50:07,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:07,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:50:07,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:07,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:50:07,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:50:07,853 INFO L87 Difference]: Start difference. First operand 335 states and 507 transitions. Second operand has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:50:07,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:07,953 INFO L93 Difference]: Finished difference Result 665 states and 1008 transitions. [2023-12-25 05:50:07,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:50:07,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 102 [2023-12-25 05:50:07,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:07,956 INFO L225 Difference]: With dead ends: 665 [2023-12-25 05:50:07,956 INFO L226 Difference]: Without dead ends: 337 [2023-12-25 05:50:07,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:50:07,959 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 8 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1921 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:07,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1921 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:50:07,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2023-12-25 05:50:07,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2023-12-25 05:50:07,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 253 states have (on average 1.5454545454545454) internal successors, (391), 257 states have internal predecessors, (391), 59 states have call successors, (59), 23 states have call predecessors, (59), 24 states have return successors, (60), 58 states have call predecessors, (60), 58 states have call successors, (60) [2023-12-25 05:50:07,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 510 transitions. [2023-12-25 05:50:07,975 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 510 transitions. Word has length 102 [2023-12-25 05:50:07,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:07,975 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 510 transitions. [2023-12-25 05:50:07,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:50:07,975 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 510 transitions. [2023-12-25 05:50:07,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 05:50:07,978 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:07,978 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:07,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-25 05:50:08,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:08,184 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:08,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:08,185 INFO L85 PathProgramCache]: Analyzing trace with hash -299866085, now seen corresponding path program 1 times [2023-12-25 05:50:08,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:08,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [723838744] [2023-12-25 05:50:08,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:08,185 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:08,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:08,194 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:08,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-25 05:50:08,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:08,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:50:08,430 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:08,454 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-25 05:50:08,455 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:08,455 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:08,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [723838744] [2023-12-25 05:50:08,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [723838744] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:08,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:08,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:50:08,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934054018] [2023-12-25 05:50:08,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:08,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:50:08,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:08,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:50:08,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:50:08,457 INFO L87 Difference]: Start difference. First operand 337 states and 510 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:50:08,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:08,561 INFO L93 Difference]: Finished difference Result 667 states and 1012 transitions. [2023-12-25 05:50:08,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:50:08,562 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 103 [2023-12-25 05:50:08,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:08,564 INFO L225 Difference]: With dead ends: 667 [2023-12-25 05:50:08,564 INFO L226 Difference]: Without dead ends: 339 [2023-12-25 05:50:08,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:50:08,566 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 8 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1907 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:08,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1907 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:50:08,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2023-12-25 05:50:08,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2023-12-25 05:50:08,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 254 states have (on average 1.5433070866141732) internal successors, (392), 259 states have internal predecessors, (392), 59 states have call successors, (59), 23 states have call predecessors, (59), 25 states have return successors, (64), 58 states have call predecessors, (64), 58 states have call successors, (64) [2023-12-25 05:50:08,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 515 transitions. [2023-12-25 05:50:08,580 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 515 transitions. Word has length 103 [2023-12-25 05:50:08,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:08,580 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 515 transitions. [2023-12-25 05:50:08,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:50:08,580 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 515 transitions. [2023-12-25 05:50:08,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-25 05:50:08,583 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:08,583 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:08,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:08,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:08,790 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:08,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:08,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1683319773, now seen corresponding path program 1 times [2023-12-25 05:50:08,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:08,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1468096272] [2023-12-25 05:50:08,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:08,791 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:08,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:08,805 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:08,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-25 05:50:09,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:09,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:50:09,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:09,045 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-25 05:50:09,045 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:09,045 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:09,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1468096272] [2023-12-25 05:50:09,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1468096272] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:09,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:09,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:50:09,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524884295] [2023-12-25 05:50:09,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:09,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:50:09,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:09,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:50:09,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:50:09,047 INFO L87 Difference]: Start difference. First operand 339 states and 515 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:50:09,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:09,157 INFO L93 Difference]: Finished difference Result 659 states and 1002 transitions. [2023-12-25 05:50:09,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:50:09,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 104 [2023-12-25 05:50:09,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:09,160 INFO L225 Difference]: With dead ends: 659 [2023-12-25 05:50:09,160 INFO L226 Difference]: Without dead ends: 339 [2023-12-25 05:50:09,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:50:09,162 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 8 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1921 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:09,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1921 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:50:09,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2023-12-25 05:50:09,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2023-12-25 05:50:09,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 254 states have (on average 1.5433070866141732) internal successors, (392), 259 states have internal predecessors, (392), 59 states have call successors, (59), 23 states have call predecessors, (59), 25 states have return successors, (63), 58 states have call predecessors, (63), 58 states have call successors, (63) [2023-12-25 05:50:09,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 514 transitions. [2023-12-25 05:50:09,174 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 514 transitions. Word has length 104 [2023-12-25 05:50:09,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:09,175 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 514 transitions. [2023-12-25 05:50:09,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:50:09,175 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 514 transitions. [2023-12-25 05:50:09,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-25 05:50:09,176 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:09,176 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:09,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:09,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:09,383 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:09,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:09,383 INFO L85 PathProgramCache]: Analyzing trace with hash -787513268, now seen corresponding path program 2 times [2023-12-25 05:50:09,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:09,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [623951182] [2023-12-25 05:50:09,384 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 05:50:09,384 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:09,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:09,385 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:09,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-25 05:50:09,549 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 05:50:09,549 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 05:50:09,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:50:09,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:09,669 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-25 05:50:09,669 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:09,670 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:09,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [623951182] [2023-12-25 05:50:09,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [623951182] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:09,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:09,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:50:09,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217443845] [2023-12-25 05:50:09,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:09,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:50:09,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:09,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:50:09,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:50:09,671 INFO L87 Difference]: Start difference. First operand 339 states and 514 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:10,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:10,090 INFO L93 Difference]: Finished difference Result 662 states and 1007 transitions. [2023-12-25 05:50:10,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:50:10,091 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 105 [2023-12-25 05:50:10,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:10,094 INFO L225 Difference]: With dead ends: 662 [2023-12-25 05:50:10,094 INFO L226 Difference]: Without dead ends: 660 [2023-12-25 05:50:10,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-25 05:50:10,096 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 433 mSDsluCounter, 2674 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 3166 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:10,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 3166 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 05:50:10,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2023-12-25 05:50:10,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 657. [2023-12-25 05:50:10,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 496 states have (on average 1.5504032258064515) internal successors, (769), 503 states have internal predecessors, (769), 112 states have call successors, (112), 45 states have call predecessors, (112), 48 states have return successors, (122), 112 states have call predecessors, (122), 110 states have call successors, (122) [2023-12-25 05:50:10,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 1003 transitions. [2023-12-25 05:50:10,121 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 1003 transitions. Word has length 105 [2023-12-25 05:50:10,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:10,121 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 1003 transitions. [2023-12-25 05:50:10,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:10,122 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 1003 transitions. [2023-12-25 05:50:10,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-25 05:50:10,123 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:10,124 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:10,130 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-25 05:50:10,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:10,328 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:10,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:10,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1510551580, now seen corresponding path program 1 times [2023-12-25 05:50:10,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:10,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1345032645] [2023-12-25 05:50:10,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:10,329 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:10,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:10,338 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:10,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-25 05:50:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:10,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:50:10,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:10,583 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-25 05:50:10,583 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:10,583 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:10,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1345032645] [2023-12-25 05:50:10,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1345032645] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:10,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:10,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:50:10,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543905792] [2023-12-25 05:50:10,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:10,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:50:10,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:10,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:50:10,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:50:10,585 INFO L87 Difference]: Start difference. First operand 657 states and 1003 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:50:10,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:10,711 INFO L93 Difference]: Finished difference Result 1297 states and 1983 transitions. [2023-12-25 05:50:10,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:50:10,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 106 [2023-12-25 05:50:10,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:10,716 INFO L225 Difference]: With dead ends: 1297 [2023-12-25 05:50:10,716 INFO L226 Difference]: Without dead ends: 659 [2023-12-25 05:50:10,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:50:10,720 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 6 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1923 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:10,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1923 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:50:10,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2023-12-25 05:50:10,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 659. [2023-12-25 05:50:10,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 497 states have (on average 1.5492957746478873) internal successors, (770), 505 states have internal predecessors, (770), 112 states have call successors, (112), 45 states have call predecessors, (112), 49 states have return successors, (124), 112 states have call predecessors, (124), 110 states have call successors, (124) [2023-12-25 05:50:10,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 1006 transitions. [2023-12-25 05:50:10,745 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 1006 transitions. Word has length 106 [2023-12-25 05:50:10,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:10,745 INFO L495 AbstractCegarLoop]: Abstraction has 659 states and 1006 transitions. [2023-12-25 05:50:10,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:50:10,746 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 1006 transitions. [2023-12-25 05:50:10,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-25 05:50:10,747 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:10,747 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:10,758 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-25 05:50:10,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:10,954 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:10,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:10,954 INFO L85 PathProgramCache]: Analyzing trace with hash -867529782, now seen corresponding path program 1 times [2023-12-25 05:50:10,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:10,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [523607446] [2023-12-25 05:50:10,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:10,955 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:10,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:10,957 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:10,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-25 05:50:11,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:11,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:50:11,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:11,196 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-25 05:50:11,196 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:11,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:11,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [523607446] [2023-12-25 05:50:11,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [523607446] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:11,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:11,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:50:11,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001476394] [2023-12-25 05:50:11,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:11,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:50:11,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:11,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:50:11,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:50:11,198 INFO L87 Difference]: Start difference. First operand 659 states and 1006 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:50:11,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:11,293 INFO L93 Difference]: Finished difference Result 976 states and 1488 transitions. [2023-12-25 05:50:11,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:50:11,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 107 [2023-12-25 05:50:11,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:11,295 INFO L225 Difference]: With dead ends: 976 [2023-12-25 05:50:11,295 INFO L226 Difference]: Without dead ends: 341 [2023-12-25 05:50:11,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:50:11,297 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 8 mSDsluCounter, 1427 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1908 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:11,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1908 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:50:11,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-12-25 05:50:11,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2023-12-25 05:50:11,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 255 states have (on average 1.5411764705882354) internal successors, (393), 261 states have internal predecessors, (393), 59 states have call successors, (59), 23 states have call predecessors, (59), 26 states have return successors, (64), 58 states have call predecessors, (64), 58 states have call successors, (64) [2023-12-25 05:50:11,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 516 transitions. [2023-12-25 05:50:11,308 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 516 transitions. Word has length 107 [2023-12-25 05:50:11,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:11,312 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 516 transitions. [2023-12-25 05:50:11,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:50:11,313 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 516 transitions. [2023-12-25 05:50:11,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-25 05:50:11,314 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:11,314 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:11,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:11,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:11,515 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:11,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:11,516 INFO L85 PathProgramCache]: Analyzing trace with hash -648071644, now seen corresponding path program 1 times [2023-12-25 05:50:11,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:11,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1320119104] [2023-12-25 05:50:11,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:11,516 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:11,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:11,518 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:11,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-25 05:50:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:11,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:50:11,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:11,780 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-25 05:50:11,780 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:11,780 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:11,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1320119104] [2023-12-25 05:50:11,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1320119104] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:11,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:11,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:50:11,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628902102] [2023-12-25 05:50:11,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:11,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:50:11,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:11,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:50:11,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:50:11,782 INFO L87 Difference]: Start difference. First operand 341 states and 516 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:50:11,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:11,899 INFO L93 Difference]: Finished difference Result 661 states and 1005 transitions. [2023-12-25 05:50:11,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:50:11,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 107 [2023-12-25 05:50:11,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:11,901 INFO L225 Difference]: With dead ends: 661 [2023-12-25 05:50:11,901 INFO L226 Difference]: Without dead ends: 343 [2023-12-25 05:50:11,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:50:11,903 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 6 mSDsluCounter, 1428 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1910 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:11,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1910 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:50:11,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-12-25 05:50:11,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2023-12-25 05:50:11,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 256 states have (on average 1.5390625) internal successors, (394), 263 states have internal predecessors, (394), 59 states have call successors, (59), 23 states have call predecessors, (59), 27 states have return successors, (68), 58 states have call predecessors, (68), 58 states have call successors, (68) [2023-12-25 05:50:11,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 521 transitions. [2023-12-25 05:50:11,923 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 521 transitions. Word has length 107 [2023-12-25 05:50:11,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:11,923 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 521 transitions. [2023-12-25 05:50:11,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:50:11,923 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 521 transitions. [2023-12-25 05:50:11,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-25 05:50:11,925 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:11,925 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:11,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:12,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:12,132 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:12,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:12,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1995099513, now seen corresponding path program 1 times [2023-12-25 05:50:12,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:12,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [28241587] [2023-12-25 05:50:12,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:12,134 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:12,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:12,149 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:12,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-25 05:50:12,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:12,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:50:12,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:12,390 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:12,390 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:12,390 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:12,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [28241587] [2023-12-25 05:50:12,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [28241587] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:12,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:12,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:50:12,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610775308] [2023-12-25 05:50:12,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:12,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:50:12,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:12,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:50:12,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:12,392 INFO L87 Difference]: Start difference. First operand 343 states and 521 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:12,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:12,435 INFO L93 Difference]: Finished difference Result 535 states and 794 transitions. [2023-12-25 05:50:12,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:50:12,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 108 [2023-12-25 05:50:12,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:12,438 INFO L225 Difference]: With dead ends: 535 [2023-12-25 05:50:12,438 INFO L226 Difference]: Without dead ends: 345 [2023-12-25 05:50:12,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:12,439 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 0 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:12,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 983 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:50:12,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2023-12-25 05:50:12,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2023-12-25 05:50:12,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 258 states have (on average 1.5348837209302326) internal successors, (396), 265 states have internal predecessors, (396), 59 states have call successors, (59), 23 states have call predecessors, (59), 27 states have return successors, (68), 58 states have call predecessors, (68), 58 states have call successors, (68) [2023-12-25 05:50:12,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 523 transitions. [2023-12-25 05:50:12,449 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 523 transitions. Word has length 108 [2023-12-25 05:50:12,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:12,449 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 523 transitions. [2023-12-25 05:50:12,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:12,449 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 523 transitions. [2023-12-25 05:50:12,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-25 05:50:12,450 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:12,450 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:12,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:12,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:12,657 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:12,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:12,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1959371094, now seen corresponding path program 1 times [2023-12-25 05:50:12,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:12,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1521975622] [2023-12-25 05:50:12,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:12,658 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:12,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:12,678 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:12,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-25 05:50:12,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:12,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:50:12,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:12,915 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:12,915 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:12,916 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:12,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1521975622] [2023-12-25 05:50:12,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1521975622] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:12,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:12,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:50:12,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587422349] [2023-12-25 05:50:12,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:12,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:50:12,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:12,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:50:12,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:12,917 INFO L87 Difference]: Start difference. First operand 345 states and 523 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:12,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:12,978 INFO L93 Difference]: Finished difference Result 716 states and 1099 transitions. [2023-12-25 05:50:12,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:50:12,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 113 [2023-12-25 05:50:12,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:12,981 INFO L225 Difference]: With dead ends: 716 [2023-12-25 05:50:12,981 INFO L226 Difference]: Without dead ends: 397 [2023-12-25 05:50:12,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:12,983 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 102 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:12,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 949 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:50:12,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2023-12-25 05:50:13,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 392. [2023-12-25 05:50:13,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 294 states have (on average 1.5510204081632653) internal successors, (456), 301 states have internal predecessors, (456), 70 states have call successors, (70), 23 states have call predecessors, (70), 27 states have return successors, (81), 69 states have call predecessors, (81), 69 states have call successors, (81) [2023-12-25 05:50:13,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 607 transitions. [2023-12-25 05:50:13,007 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 607 transitions. Word has length 113 [2023-12-25 05:50:13,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:13,007 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 607 transitions. [2023-12-25 05:50:13,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:13,008 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 607 transitions. [2023-12-25 05:50:13,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-25 05:50:13,009 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:13,009 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:13,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:13,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:13,218 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:13,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:13,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1436017353, now seen corresponding path program 1 times [2023-12-25 05:50:13,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:13,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [115353550] [2023-12-25 05:50:13,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:13,219 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:13,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:13,221 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:13,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-25 05:50:13,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:13,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:50:13,472 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:13,489 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:13,490 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:50:13,563 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:13,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:13,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [115353550] [2023-12-25 05:50:13,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [115353550] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:50:13,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:50:13,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-25 05:50:13,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275021156] [2023-12-25 05:50:13,564 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:50:13,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:50:13,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:13,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:50:13,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:50:13,565 INFO L87 Difference]: Start difference. First operand 392 states and 607 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-25 05:50:13,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:13,751 INFO L93 Difference]: Finished difference Result 912 states and 1464 transitions. [2023-12-25 05:50:13,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:50:13,752 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 114 [2023-12-25 05:50:13,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:13,756 INFO L225 Difference]: With dead ends: 912 [2023-12-25 05:50:13,756 INFO L226 Difference]: Without dead ends: 722 [2023-12-25 05:50:13,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:50:13,757 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 535 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:13,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 1780 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:50:13,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2023-12-25 05:50:13,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 707. [2023-12-25 05:50:13,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 545 states have (on average 1.61651376146789) internal successors, (881), 552 states have internal predecessors, (881), 134 states have call successors, (134), 23 states have call predecessors, (134), 27 states have return successors, (155), 133 states have call predecessors, (155), 133 states have call successors, (155) [2023-12-25 05:50:13,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 1170 transitions. [2023-12-25 05:50:13,778 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 1170 transitions. Word has length 114 [2023-12-25 05:50:13,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:13,778 INFO L495 AbstractCegarLoop]: Abstraction has 707 states and 1170 transitions. [2023-12-25 05:50:13,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-25 05:50:13,778 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 1170 transitions. [2023-12-25 05:50:13,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-25 05:50:13,781 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:13,781 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:13,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:13,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:13,988 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:13,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:13,988 INFO L85 PathProgramCache]: Analyzing trace with hash -2058957364, now seen corresponding path program 1 times [2023-12-25 05:50:13,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:13,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2087277480] [2023-12-25 05:50:13,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:13,989 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:13,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:13,990 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:13,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-25 05:50:14,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:14,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:50:14,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:14,232 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:14,232 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:14,232 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:14,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2087277480] [2023-12-25 05:50:14,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2087277480] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:14,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:14,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:50:14,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074478179] [2023-12-25 05:50:14,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:14,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:50:14,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:14,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:50:14,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:14,234 INFO L87 Difference]: Start difference. First operand 707 states and 1170 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:14,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:14,308 INFO L93 Difference]: Finished difference Result 1671 states and 2804 transitions. [2023-12-25 05:50:14,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:50:14,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2023-12-25 05:50:14,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:14,313 INFO L225 Difference]: With dead ends: 1671 [2023-12-25 05:50:14,314 INFO L226 Difference]: Without dead ends: 1024 [2023-12-25 05:50:14,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:14,316 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 100 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:14,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 988 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:50:14,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2023-12-25 05:50:14,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 1019. [2023-12-25 05:50:14,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 793 states have (on average 1.630517023959647) internal successors, (1293), 800 states have internal predecessors, (1293), 198 states have call successors, (198), 23 states have call predecessors, (198), 27 states have return successors, (229), 197 states have call predecessors, (229), 197 states have call successors, (229) [2023-12-25 05:50:14,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1720 transitions. [2023-12-25 05:50:14,351 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1720 transitions. Word has length 120 [2023-12-25 05:50:14,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:14,352 INFO L495 AbstractCegarLoop]: Abstraction has 1019 states and 1720 transitions. [2023-12-25 05:50:14,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:14,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1720 transitions. [2023-12-25 05:50:14,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-25 05:50:14,356 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:14,356 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:14,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:14,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:14,563 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:14,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:14,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1009657450, now seen corresponding path program 1 times [2023-12-25 05:50:14,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:14,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1908810553] [2023-12-25 05:50:14,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:14,564 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:14,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:14,566 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:14,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-25 05:50:14,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:14,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:50:14,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:14,770 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:14,770 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:14,771 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:14,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1908810553] [2023-12-25 05:50:14,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1908810553] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:14,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:14,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:50:14,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618972645] [2023-12-25 05:50:14,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:14,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:50:14,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:14,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:50:14,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:14,772 INFO L87 Difference]: Start difference. First operand 1019 states and 1720 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:14,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:14,842 INFO L93 Difference]: Finished difference Result 2420 states and 4106 transitions. [2023-12-25 05:50:14,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:50:14,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 121 [2023-12-25 05:50:14,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:14,849 INFO L225 Difference]: With dead ends: 2420 [2023-12-25 05:50:14,849 INFO L226 Difference]: Without dead ends: 1511 [2023-12-25 05:50:14,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:14,853 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 98 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:14,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 981 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:50:14,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1511 states. [2023-12-25 05:50:14,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1511 to 1506. [2023-12-25 05:50:14,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1185 states have (on average 1.639662447257384) internal successors, (1943), 1192 states have internal predecessors, (1943), 293 states have call successors, (293), 23 states have call predecessors, (293), 27 states have return successors, (324), 292 states have call predecessors, (324), 292 states have call successors, (324) [2023-12-25 05:50:14,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2560 transitions. [2023-12-25 05:50:14,905 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2560 transitions. Word has length 121 [2023-12-25 05:50:14,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:14,905 INFO L495 AbstractCegarLoop]: Abstraction has 1506 states and 2560 transitions. [2023-12-25 05:50:14,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:14,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2560 transitions. [2023-12-25 05:50:14,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-25 05:50:14,911 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:14,911 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:14,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:15,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:15,117 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:15,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:15,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1972328298, now seen corresponding path program 1 times [2023-12-25 05:50:15,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:15,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1356658870] [2023-12-25 05:50:15,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:15,119 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:15,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:15,120 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:15,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-25 05:50:15,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:15,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:50:15,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:15,358 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:15,359 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:15,359 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:15,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1356658870] [2023-12-25 05:50:15,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1356658870] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:15,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:15,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:50:15,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869649296] [2023-12-25 05:50:15,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:15,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:50:15,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:15,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:50:15,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:15,360 INFO L87 Difference]: Start difference. First operand 1506 states and 2560 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:15,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:15,459 INFO L93 Difference]: Finished difference Result 3522 states and 6031 transitions. [2023-12-25 05:50:15,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:50:15,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 122 [2023-12-25 05:50:15,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:15,470 INFO L225 Difference]: With dead ends: 3522 [2023-12-25 05:50:15,470 INFO L226 Difference]: Without dead ends: 2246 [2023-12-25 05:50:15,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:15,476 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 96 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:15,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 974 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:50:15,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2023-12-25 05:50:15,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 2241. [2023-12-25 05:50:15,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2241 states, 1797 states have (on average 1.6471897607122983) internal successors, (2960), 1804 states have internal predecessors, (2960), 416 states have call successors, (416), 23 states have call predecessors, (416), 27 states have return successors, (463), 415 states have call predecessors, (463), 415 states have call successors, (463) [2023-12-25 05:50:15,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2241 states to 2241 states and 3839 transitions. [2023-12-25 05:50:15,561 INFO L78 Accepts]: Start accepts. Automaton has 2241 states and 3839 transitions. Word has length 122 [2023-12-25 05:50:15,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:15,561 INFO L495 AbstractCegarLoop]: Abstraction has 2241 states and 3839 transitions. [2023-12-25 05:50:15,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:15,561 INFO L276 IsEmpty]: Start isEmpty. Operand 2241 states and 3839 transitions. [2023-12-25 05:50:15,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-25 05:50:15,570 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:15,570 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:15,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:15,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:15,777 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:15,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:15,777 INFO L85 PathProgramCache]: Analyzing trace with hash 541597333, now seen corresponding path program 1 times [2023-12-25 05:50:15,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:15,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [677748030] [2023-12-25 05:50:15,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:15,778 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:15,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:15,793 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:15,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-25 05:50:16,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:16,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:50:16,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:16,071 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:16,071 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:16,072 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:16,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [677748030] [2023-12-25 05:50:16,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [677748030] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:16,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:16,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:50:16,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642982225] [2023-12-25 05:50:16,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:16,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:50:16,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:16,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:50:16,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:16,073 INFO L87 Difference]: Start difference. First operand 2241 states and 3839 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:16,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:16,181 INFO L93 Difference]: Finished difference Result 5232 states and 9024 transitions. [2023-12-25 05:50:16,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:50:16,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 123 [2023-12-25 05:50:16,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:16,196 INFO L225 Difference]: With dead ends: 5232 [2023-12-25 05:50:16,196 INFO L226 Difference]: Without dead ends: 3418 [2023-12-25 05:50:16,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:16,203 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 94 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:16,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 974 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:50:16,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3418 states. [2023-12-25 05:50:16,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3418 to 3413. [2023-12-25 05:50:16,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3413 states, 2790 states have (on average 1.6523297491039426) internal successors, (4610), 2797 states have internal predecessors, (4610), 595 states have call successors, (595), 23 states have call predecessors, (595), 27 states have return successors, (668), 594 states have call predecessors, (668), 594 states have call successors, (668) [2023-12-25 05:50:16,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3413 states to 3413 states and 5873 transitions. [2023-12-25 05:50:16,325 INFO L78 Accepts]: Start accepts. Automaton has 3413 states and 5873 transitions. Word has length 123 [2023-12-25 05:50:16,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:16,326 INFO L495 AbstractCegarLoop]: Abstraction has 3413 states and 5873 transitions. [2023-12-25 05:50:16,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:16,326 INFO L276 IsEmpty]: Start isEmpty. Operand 3413 states and 5873 transitions. [2023-12-25 05:50:16,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-25 05:50:16,337 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:16,337 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:16,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:16,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:16,543 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:16,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:16,544 INFO L85 PathProgramCache]: Analyzing trace with hash -214302674, now seen corresponding path program 1 times [2023-12-25 05:50:16,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:16,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [749711910] [2023-12-25 05:50:16,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:16,544 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:16,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:16,545 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:16,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-25 05:50:16,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:16,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:50:16,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:16,775 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:16,775 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:16,775 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:16,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [749711910] [2023-12-25 05:50:16,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [749711910] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:16,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:16,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:50:16,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710588285] [2023-12-25 05:50:16,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:16,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:50:16,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:16,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:50:16,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:16,776 INFO L87 Difference]: Start difference. First operand 3413 states and 5873 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:16,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:16,975 INFO L93 Difference]: Finished difference Result 8087 states and 13978 transitions. [2023-12-25 05:50:16,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:50:16,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 124 [2023-12-25 05:50:16,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:16,998 INFO L225 Difference]: With dead ends: 8087 [2023-12-25 05:50:16,998 INFO L226 Difference]: Without dead ends: 5388 [2023-12-25 05:50:17,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:17,008 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 92 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:17,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 987 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:50:17,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5388 states. [2023-12-25 05:50:17,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5388 to 5383. [2023-12-25 05:50:17,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5383 states, 4384 states have (on average 1.6425638686131387) internal successors, (7201), 4391 states have internal predecessors, (7201), 971 states have call successors, (971), 23 states have call predecessors, (971), 27 states have return successors, (1088), 970 states have call predecessors, (1088), 970 states have call successors, (1088) [2023-12-25 05:50:17,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5383 states to 5383 states and 9260 transitions. [2023-12-25 05:50:17,212 INFO L78 Accepts]: Start accepts. Automaton has 5383 states and 9260 transitions. Word has length 124 [2023-12-25 05:50:17,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:17,213 INFO L495 AbstractCegarLoop]: Abstraction has 5383 states and 9260 transitions. [2023-12-25 05:50:17,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:17,213 INFO L276 IsEmpty]: Start isEmpty. Operand 5383 states and 9260 transitions. [2023-12-25 05:50:17,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-25 05:50:17,231 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:17,231 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:17,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:17,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:17,438 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:17,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:17,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1589285329, now seen corresponding path program 1 times [2023-12-25 05:50:17,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:17,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1001106609] [2023-12-25 05:50:17,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:17,440 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:17,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:17,457 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:17,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-25 05:50:17,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:17,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:50:17,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:17,726 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:17,726 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:17,726 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:17,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1001106609] [2023-12-25 05:50:17,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1001106609] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:17,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:17,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:50:17,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629260671] [2023-12-25 05:50:17,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:17,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:50:17,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:17,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:50:17,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:17,728 INFO L87 Difference]: Start difference. First operand 5383 states and 9260 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:18,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:18,022 INFO L93 Difference]: Finished difference Result 13224 states and 22888 transitions. [2023-12-25 05:50:18,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:50:18,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 125 [2023-12-25 05:50:18,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:18,074 INFO L225 Difference]: With dead ends: 13224 [2023-12-25 05:50:18,075 INFO L226 Difference]: Without dead ends: 8921 [2023-12-25 05:50:18,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:18,090 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 90 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:18,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 977 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:50:18,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8921 states. [2023-12-25 05:50:18,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8921 to 8916. [2023-12-25 05:50:18,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8916 states, 7311 states have (on average 1.640951990151826) internal successors, (11997), 7318 states have internal predecessors, (11997), 1577 states have call successors, (1577), 23 states have call predecessors, (1577), 27 states have return successors, (1772), 1576 states have call predecessors, (1772), 1576 states have call successors, (1772) [2023-12-25 05:50:18,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8916 states to 8916 states and 15346 transitions. [2023-12-25 05:50:18,448 INFO L78 Accepts]: Start accepts. Automaton has 8916 states and 15346 transitions. Word has length 125 [2023-12-25 05:50:18,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:18,448 INFO L495 AbstractCegarLoop]: Abstraction has 8916 states and 15346 transitions. [2023-12-25 05:50:18,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:18,449 INFO L276 IsEmpty]: Start isEmpty. Operand 8916 states and 15346 transitions. [2023-12-25 05:50:18,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-25 05:50:18,472 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:18,473 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:18,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:18,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:18,679 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:18,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:18,679 INFO L85 PathProgramCache]: Analyzing trace with hash 2079676928, now seen corresponding path program 1 times [2023-12-25 05:50:18,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:18,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [910014190] [2023-12-25 05:50:18,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:18,680 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:18,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:18,681 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:18,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-25 05:50:18,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:18,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:50:18,884 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:18,909 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:18,909 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:18,910 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:18,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [910014190] [2023-12-25 05:50:18,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [910014190] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:18,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:18,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:50:18,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813519341] [2023-12-25 05:50:18,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:18,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:50:18,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:18,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:50:18,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:18,911 INFO L87 Difference]: Start difference. First operand 8916 states and 15346 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:19,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:19,356 INFO L93 Difference]: Finished difference Result 22996 states and 39741 transitions. [2023-12-25 05:50:19,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:50:19,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 126 [2023-12-25 05:50:19,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:19,406 INFO L225 Difference]: With dead ends: 22996 [2023-12-25 05:50:19,407 INFO L226 Difference]: Without dead ends: 15593 [2023-12-25 05:50:19,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:19,428 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 88 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:19,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 997 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:50:19,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15593 states. [2023-12-25 05:50:20,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15593 to 15588. [2023-12-25 05:50:20,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15588 states, 12780 states have (on average 1.6320813771517997) internal successors, (20858), 12787 states have internal predecessors, (20858), 2780 states have call successors, (2780), 23 states have call predecessors, (2780), 27 states have return successors, (3119), 2779 states have call predecessors, (3119), 2779 states have call successors, (3119) [2023-12-25 05:50:20,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15588 states to 15588 states and 26757 transitions. [2023-12-25 05:50:20,092 INFO L78 Accepts]: Start accepts. Automaton has 15588 states and 26757 transitions. Word has length 126 [2023-12-25 05:50:20,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:20,092 INFO L495 AbstractCegarLoop]: Abstraction has 15588 states and 26757 transitions. [2023-12-25 05:50:20,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:20,093 INFO L276 IsEmpty]: Start isEmpty. Operand 15588 states and 26757 transitions. [2023-12-25 05:50:20,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-25 05:50:20,136 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:20,136 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:20,145 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-12-25 05:50:20,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:20,343 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:20,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:20,344 INFO L85 PathProgramCache]: Analyzing trace with hash -2104936016, now seen corresponding path program 1 times [2023-12-25 05:50:20,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:20,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1602582899] [2023-12-25 05:50:20,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:20,344 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:20,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:20,357 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:20,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-25 05:50:20,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:20,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:50:20,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:20,664 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:20,664 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:20,664 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:20,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1602582899] [2023-12-25 05:50:20,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1602582899] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:20,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:20,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:50:20,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627388316] [2023-12-25 05:50:20,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:20,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:50:20,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:20,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:50:20,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:20,666 INFO L87 Difference]: Start difference. First operand 15588 states and 26757 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:21,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:21,406 INFO L93 Difference]: Finished difference Result 41163 states and 71001 transitions. [2023-12-25 05:50:21,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:50:21,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 127 [2023-12-25 05:50:21,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:21,570 INFO L225 Difference]: With dead ends: 41163 [2023-12-25 05:50:21,570 INFO L226 Difference]: Without dead ends: 27708 [2023-12-25 05:50:21,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:21,601 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 86 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:21,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 977 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:50:21,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27708 states. [2023-12-25 05:50:22,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27708 to 27703. [2023-12-25 05:50:22,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27703 states, 22856 states have (on average 1.6285439271963598) internal successors, (37222), 22863 states have internal predecessors, (37222), 4819 states have call successors, (4819), 23 states have call predecessors, (4819), 27 states have return successors, (5432), 4818 states have call predecessors, (5432), 4818 states have call successors, (5432) [2023-12-25 05:50:22,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27703 states to 27703 states and 47473 transitions. [2023-12-25 05:50:22,879 INFO L78 Accepts]: Start accepts. Automaton has 27703 states and 47473 transitions. Word has length 127 [2023-12-25 05:50:22,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:22,879 INFO L495 AbstractCegarLoop]: Abstraction has 27703 states and 47473 transitions. [2023-12-25 05:50:22,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:22,879 INFO L276 IsEmpty]: Start isEmpty. Operand 27703 states and 47473 transitions. [2023-12-25 05:50:22,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 05:50:22,916 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:22,916 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:22,934 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-12-25 05:50:23,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:23,123 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:23,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:23,123 INFO L85 PathProgramCache]: Analyzing trace with hash 713785054, now seen corresponding path program 1 times [2023-12-25 05:50:23,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:23,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1634734140] [2023-12-25 05:50:23,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:23,124 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:23,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:23,141 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:23,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-25 05:50:23,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:23,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:50:23,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:23,401 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:23,401 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:23,401 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:23,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1634734140] [2023-12-25 05:50:23,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1634734140] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:23,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:23,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:50:23,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549860366] [2023-12-25 05:50:23,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:23,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:50:23,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:23,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:50:23,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:23,403 INFO L87 Difference]: Start difference. First operand 27703 states and 47473 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:24,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:24,938 INFO L93 Difference]: Finished difference Result 75355 states and 129658 transitions. [2023-12-25 05:50:24,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:50:24,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 128 [2023-12-25 05:50:24,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:25,150 INFO L225 Difference]: With dead ends: 75355 [2023-12-25 05:50:25,151 INFO L226 Difference]: Without dead ends: 50532 [2023-12-25 05:50:25,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:25,215 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 84 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:25,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 978 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:50:25,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50532 states. [2023-12-25 05:50:27,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50532 to 50527. [2023-12-25 05:50:27,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50527 states, 41965 states have (on average 1.6236387465745263) internal successors, (68136), 41972 states have internal predecessors, (68136), 8534 states have call successors, (8534), 23 states have call predecessors, (8534), 27 states have return successors, (9679), 8533 states have call predecessors, (9679), 8533 states have call successors, (9679) [2023-12-25 05:50:27,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50527 states to 50527 states and 86349 transitions. [2023-12-25 05:50:27,746 INFO L78 Accepts]: Start accepts. Automaton has 50527 states and 86349 transitions. Word has length 128 [2023-12-25 05:50:27,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:27,746 INFO L495 AbstractCegarLoop]: Abstraction has 50527 states and 86349 transitions. [2023-12-25 05:50:27,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:27,747 INFO L276 IsEmpty]: Start isEmpty. Operand 50527 states and 86349 transitions. [2023-12-25 05:50:27,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 05:50:27,791 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:27,791 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:27,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2023-12-25 05:50:27,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:27,997 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:27,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:27,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1304849680, now seen corresponding path program 1 times [2023-12-25 05:50:27,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:27,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [842499662] [2023-12-25 05:50:27,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:27,999 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:27,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:28,000 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:28,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-25 05:50:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:28,191 INFO L262 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:50:28,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:28,222 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:28,223 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:28,223 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:28,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [842499662] [2023-12-25 05:50:28,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [842499662] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:28,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:28,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:50:28,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019792369] [2023-12-25 05:50:28,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:28,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:50:28,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:28,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:50:28,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:28,225 INFO L87 Difference]: Start difference. First operand 50527 states and 86349 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:30,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:30,623 INFO L93 Difference]: Finished difference Result 94102 states and 161252 transitions. [2023-12-25 05:50:30,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:50:30,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 129 [2023-12-25 05:50:30,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:31,064 INFO L225 Difference]: With dead ends: 94102 [2023-12-25 05:50:31,064 INFO L226 Difference]: Without dead ends: 93912 [2023-12-25 05:50:31,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:31,113 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 82 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:31,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 977 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:50:31,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93912 states. [2023-12-25 05:50:34,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93912 to 93907. [2023-12-25 05:50:34,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93907 states, 78546 states have (on average 1.6172306673796246) internal successors, (127027), 78553 states have internal predecessors, (127027), 15333 states have call successors, (15333), 23 states have call predecessors, (15333), 27 states have return successors, (17524), 15332 states have call predecessors, (17524), 15332 states have call successors, (17524) [2023-12-25 05:50:35,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93907 states to 93907 states and 159884 transitions. [2023-12-25 05:50:35,437 INFO L78 Accepts]: Start accepts. Automaton has 93907 states and 159884 transitions. Word has length 129 [2023-12-25 05:50:35,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:35,437 INFO L495 AbstractCegarLoop]: Abstraction has 93907 states and 159884 transitions. [2023-12-25 05:50:35,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:35,437 INFO L276 IsEmpty]: Start isEmpty. Operand 93907 states and 159884 transitions. [2023-12-25 05:50:35,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-25 05:50:35,492 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:35,492 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:35,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:35,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:35,700 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:35,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:35,700 INFO L85 PathProgramCache]: Analyzing trace with hash -2095318145, now seen corresponding path program 1 times [2023-12-25 05:50:35,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:35,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [472571526] [2023-12-25 05:50:35,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:35,701 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:35,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:35,702 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:35,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-25 05:50:35,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:35,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 05:50:35,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:36,125 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:50:36,125 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:50:36,389 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-25 05:50:36,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:36,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [472571526] [2023-12-25 05:50:36,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [472571526] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:50:36,389 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:50:36,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-25 05:50:36,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457472083] [2023-12-25 05:50:36,390 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:50:36,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 05:50:36,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:36,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 05:50:36,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:50:36,391 INFO L87 Difference]: Start difference. First operand 93907 states and 159884 transitions. Second operand has 16 states, 16 states have (on average 10.1875) internal successors, (163), 14 states have internal predecessors, (163), 4 states have call successors, (30), 6 states have call predecessors, (30), 9 states have return successors, (27), 6 states have call predecessors, (27), 4 states have call successors, (27) [2023-12-25 05:50:47,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:47,489 INFO L93 Difference]: Finished difference Result 276196 states and 476877 transitions. [2023-12-25 05:50:47,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:50:47,490 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.1875) internal successors, (163), 14 states have internal predecessors, (163), 4 states have call successors, (30), 6 states have call predecessors, (30), 9 states have return successors, (27), 6 states have call predecessors, (27), 4 states have call successors, (27) Word has length 130 [2023-12-25 05:50:47,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:49,098 INFO L225 Difference]: With dead ends: 276196 [2023-12-25 05:50:49,098 INFO L226 Difference]: Without dead ends: 276011 [2023-12-25 05:50:49,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2023-12-25 05:50:49,219 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 1747 mSDsluCounter, 1750 mSDsCounter, 0 mSdLazyCounter, 3791 mSolverCounterSat, 445 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1813 SdHoareTripleChecker+Valid, 2024 SdHoareTripleChecker+Invalid, 4236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 445 IncrementalHoareTripleChecker+Valid, 3791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:49,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1813 Valid, 2024 Invalid, 4236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [445 Valid, 3791 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-25 05:50:49,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276011 states. [2023-12-25 05:50:59,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276011 to 187815. [2023-12-25 05:51:00,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187815 states, 157095 states have (on average 1.6172316114453038) internal successors, (254059), 157106 states have internal predecessors, (254059), 30664 states have call successors, (30664), 47 states have call predecessors, (30664), 55 states have return successors, (39411), 30665 states have call predecessors, (39411), 30662 states have call successors, (39411) [2023-12-25 05:51:01,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187815 states to 187815 states and 324134 transitions. [2023-12-25 05:51:01,205 INFO L78 Accepts]: Start accepts. Automaton has 187815 states and 324134 transitions. Word has length 130 [2023-12-25 05:51:01,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:51:01,206 INFO L495 AbstractCegarLoop]: Abstraction has 187815 states and 324134 transitions. [2023-12-25 05:51:01,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.1875) internal successors, (163), 14 states have internal predecessors, (163), 4 states have call successors, (30), 6 states have call predecessors, (30), 9 states have return successors, (27), 6 states have call predecessors, (27), 4 states have call successors, (27) [2023-12-25 05:51:01,206 INFO L276 IsEmpty]: Start isEmpty. Operand 187815 states and 324134 transitions. [2023-12-25 05:51:01,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-25 05:51:01,349 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:51:01,349 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:51:01,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-25 05:51:01,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:51:01,555 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:51:01,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:51:01,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1156891519, now seen corresponding path program 1 times [2023-12-25 05:51:01,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:51:01,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [917167926] [2023-12-25 05:51:01,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:51:01,556 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:51:01,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:51:01,557 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:51:01,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-25 05:51:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:51:01,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:51:01,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:51:01,965 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 05:51:01,965 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:51:01,965 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:51:01,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [917167926] [2023-12-25 05:51:01,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [917167926] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:51:01,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:51:01,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:51:01,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568215773] [2023-12-25 05:51:01,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:51:01,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:51:01,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:51:01,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:51:01,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:51:01,967 INFO L87 Difference]: Start difference. First operand 187815 states and 324134 transitions. Second operand has 9 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-25 05:51:08,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:51:08,866 INFO L93 Difference]: Finished difference Result 188381 states and 324977 transitions. [2023-12-25 05:51:08,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:51:08,866 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 131 [2023-12-25 05:51:08,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:51:09,833 INFO L225 Difference]: With dead ends: 188381 [2023-12-25 05:51:09,833 INFO L226 Difference]: Without dead ends: 187881 [2023-12-25 05:51:09,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2023-12-25 05:51:09,926 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 685 mSDsluCounter, 2656 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 3102 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:51:09,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 3102 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 05:51:10,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187881 states. [2023-12-25 05:51:19,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187881 to 187877. [2023-12-25 05:51:19,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187877 states, 157140 states have (on average 1.6171630393279879) internal successors, (254121), 157153 states have internal predecessors, (254121), 30680 states have call successors, (30680), 49 states have call predecessors, (30680), 56 states have return successors, (39432), 30680 states have call predecessors, (39432), 30678 states have call successors, (39432) [2023-12-25 05:51:20,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187877 states to 187877 states and 324233 transitions. [2023-12-25 05:51:20,789 INFO L78 Accepts]: Start accepts. Automaton has 187877 states and 324233 transitions. Word has length 131 [2023-12-25 05:51:20,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:51:20,791 INFO L495 AbstractCegarLoop]: Abstraction has 187877 states and 324233 transitions. [2023-12-25 05:51:20,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-25 05:51:20,792 INFO L276 IsEmpty]: Start isEmpty. Operand 187877 states and 324233 transitions. [2023-12-25 05:51:20,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-25 05:51:20,917 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:51:20,917 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:51:20,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-25 05:51:21,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:51:21,123 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:51:21,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:51:21,124 INFO L85 PathProgramCache]: Analyzing trace with hash 164548953, now seen corresponding path program 1 times [2023-12-25 05:51:21,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:51:21,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210843671] [2023-12-25 05:51:21,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:51:21,124 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:51:21,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:51:21,125 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:51:21,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-25 05:51:21,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:51:21,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:51:21,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:51:21,357 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-25 05:51:21,357 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:51:21,358 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:51:21,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [210843671] [2023-12-25 05:51:21,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [210843671] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:51:21,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:51:21,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:51:21,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506893542] [2023-12-25 05:51:21,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:51:21,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:51:21,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:51:21,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:51:21,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:51:21,360 INFO L87 Difference]: Start difference. First operand 187877 states and 324233 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)