/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_spec3_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:32:01,293 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:32:01,355 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:32:01,359 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:32:01,359 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:32:01,384 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:32:01,385 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:32:01,385 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:32:01,385 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:32:01,386 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:32:01,386 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:32:01,386 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:32:01,386 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:32:01,387 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:32:01,387 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:32:01,387 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:32:01,390 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:32:01,393 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:32:01,393 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:32:01,394 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:32:01,395 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:32:01,395 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:32:01,395 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:32:01,395 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:32:01,395 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:32:01,396 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:32:01,396 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:32:01,396 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:32:01,396 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:32:01,396 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:32:01,397 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:32:01,397 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:32:01,397 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:32:01,397 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:32:01,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:32:01,398 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:32:01,398 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:32:01,398 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:32:01,398 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:32:01,398 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:32:01,398 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:32:01,399 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:32:01,399 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:32:01,399 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:32:01,399 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:32:01,400 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:32:01,400 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:32:01,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:32:01,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:32:01,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:32:01,633 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:32:01,633 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:32:01,635 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product33.cil.c [2023-12-16 17:32:02,819 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:32:03,091 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:32:03,091 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product33.cil.c [2023-12-16 17:32:03,115 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a37c429f4/a1a6ab30b77f43c09b7ce84d6c7d21a0/FLAG873984ca7 [2023-12-16 17:32:03,126 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a37c429f4/a1a6ab30b77f43c09b7ce84d6c7d21a0 [2023-12-16 17:32:03,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:32:03,129 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:32:03,132 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:32:03,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:32:03,136 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:32:03,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:32:03" (1/1) ... [2023-12-16 17:32:03,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bdf43ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:03, skipping insertion in model container [2023-12-16 17:32:03,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:32:03" (1/1) ... [2023-12-16 17:32:03,190 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:32:03,673 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_spec3_product33.cil.c[65706,65719] [2023-12-16 17:32:03,677 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:32:03,698 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-16 17:32:03,710 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:32:03,796 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_spec3_product33.cil.c[65706,65719] [2023-12-16 17:32:03,797 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:32:03,812 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:32:03,819 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-12-16 17:32:03,820 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [375] [2023-12-16 17:32:03,821 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [787] [2023-12-16 17:32:03,821 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1858] [2023-12-16 17:32:03,821 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1893] [2023-12-16 17:32:03,821 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2031] [2023-12-16 17:32:03,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2397] [2023-12-16 17:32:03,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2616] [2023-12-16 17:32:03,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [3009] [2023-12-16 17:32:03,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [3026] [2023-12-16 17:32:03,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3085] [2023-12-16 17:32:03,890 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_spec3_product33.cil.c[65706,65719] [2023-12-16 17:32:03,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:32:03,916 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:32:03,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:03 WrapperNode [2023-12-16 17:32:03,919 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:32:03,920 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:32:03,920 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:32:03,920 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:32:03,925 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:03" (1/1) ... [2023-12-16 17:32:03,951 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:03" (1/1) ... [2023-12-16 17:32:04,000 INFO L138 Inliner]: procedures = 137, calls = 219, calls flagged for inlining = 65, calls inlined = 60, statements flattened = 1031 [2023-12-16 17:32:04,001 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:32:04,001 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:32:04,002 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:32:04,002 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:32:04,009 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:03" (1/1) ... [2023-12-16 17:32:04,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:03" (1/1) ... [2023-12-16 17:32:04,015 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:03" (1/1) ... [2023-12-16 17:32:04,065 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]. [2023-12-16 17:32:04,065 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:03" (1/1) ... [2023-12-16 17:32:04,065 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:03" (1/1) ... [2023-12-16 17:32:04,079 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:03" (1/1) ... [2023-12-16 17:32:04,101 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:03" (1/1) ... [2023-12-16 17:32:04,105 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:03" (1/1) ... [2023-12-16 17:32:04,108 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:03" (1/1) ... [2023-12-16 17:32:04,134 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:32:04,135 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:32:04,135 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:32:04,135 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:32:04,136 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:03" (1/1) ... [2023-12-16 17:32:04,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:32:04,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:32:04,167 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) [2023-12-16 17:32:04,188 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 [2023-12-16 17:32:04,196 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-16 17:32:04,196 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-16 17:32:04,196 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-16 17:32:04,196 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-16 17:32:04,196 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-16 17:32:04,196 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-16 17:32:04,196 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-16 17:32:04,197 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-16 17:32:04,197 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-16 17:32:04,197 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-16 17:32:04,199 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-16 17:32:04,199 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-16 17:32:04,200 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-16 17:32:04,200 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-16 17:32:04,200 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-16 17:32:04,200 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-16 17:32:04,200 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-16 17:32:04,200 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-16 17:32:04,200 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-16 17:32:04,200 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-16 17:32:04,200 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-16 17:32:04,200 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-16 17:32:04,200 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-16 17:32:04,200 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-16 17:32:04,200 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-16 17:32:04,201 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-16 17:32:04,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:32:04,201 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-16 17:32:04,201 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-16 17:32:04,201 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-16 17:32:04,201 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-16 17:32:04,201 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-16 17:32:04,201 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-16 17:32:04,201 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-16 17:32:04,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-16 17:32:04,201 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-16 17:32:04,201 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-16 17:32:04,201 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-16 17:32:04,201 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-16 17:32:04,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:32:04,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 17:32:04,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 17:32:04,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 17:32:04,202 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-16 17:32:04,202 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-16 17:32:04,202 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-16 17:32:04,202 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-16 17:32:04,202 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-16 17:32:04,202 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-16 17:32:04,202 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-16 17:32:04,203 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-16 17:32:04,203 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-16 17:32:04,203 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-16 17:32:04,203 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-16 17:32:04,203 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-16 17:32:04,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:32:04,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:32:04,401 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:32:04,403 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:32:05,042 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:32:05,138 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:32:05,139 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 17:32:05,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:32:05 BoogieIcfgContainer [2023-12-16 17:32:05,139 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:32:05,141 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:32:05,141 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:32:05,143 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:32:05,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:32:03" (1/3) ... [2023-12-16 17:32:05,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@317f053a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:32:05, skipping insertion in model container [2023-12-16 17:32:05,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:03" (2/3) ... [2023-12-16 17:32:05,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@317f053a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:32:05, skipping insertion in model container [2023-12-16 17:32:05,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:32:05" (3/3) ... [2023-12-16 17:32:05,146 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product33.cil.c [2023-12-16 17:32:05,158 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:32:05,158 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:32:05,194 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:32:05,198 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;@6904ae9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:32:05,199 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:32:05,204 INFO L276 IsEmpty]: Start isEmpty. Operand has 367 states, 272 states have (on average 1.5551470588235294) internal successors, (423), 278 states have internal predecessors, (423), 68 states have call successors, (68), 25 states have call predecessors, (68), 25 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-16 17:32:05,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-16 17:32:05,216 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:05,216 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2023-12-16 17:32:05,217 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:05,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:05,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1144533239, now seen corresponding path program 1 times [2023-12-16 17:32:05,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:05,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1476469089] [2023-12-16 17:32:05,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:05,231 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 [2023-12-16 17:32:05,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:05,233 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) [2023-12-16 17:32:05,241 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 [2023-12-16 17:32:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:05,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 17:32:05,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:05,597 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-16 17:32:05,597 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:05,597 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:05,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1476469089] [2023-12-16 17:32:05,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1476469089] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:05,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:05,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:32:05,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505807086] [2023-12-16 17:32:05,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:05,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 17:32:05,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:05,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 17:32:05,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:32:05,627 INFO L87 Difference]: Start difference. First operand has 367 states, 272 states have (on average 1.5551470588235294) internal successors, (423), 278 states have internal predecessors, (423), 68 states have call successors, (68), 25 states have call predecessors, (68), 25 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:32:05,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:05,736 INFO L93 Difference]: Finished difference Result 584 states and 874 transitions. [2023-12-16 17:32:05,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 17:32:05,738 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 123 [2023-12-16 17:32:05,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:05,748 INFO L225 Difference]: With dead ends: 584 [2023-12-16 17:32:05,748 INFO L226 Difference]: Without dead ends: 363 [2023-12-16 17:32:05,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:32:05,771 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:05,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 534 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:05,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-12-16 17:32:05,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2023-12-16 17:32:05,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 270 states have (on average 1.5407407407407407) internal successors, (416), 274 states have internal predecessors, (416), 68 states have call successors, (68), 25 states have call predecessors, (68), 24 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-16 17:32:05,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 549 transitions. [2023-12-16 17:32:05,855 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 549 transitions. Word has length 123 [2023-12-16 17:32:05,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:05,856 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 549 transitions. [2023-12-16 17:32:05,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:32:05,856 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 549 transitions. [2023-12-16 17:32:05,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-16 17:32:05,867 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:05,867 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2023-12-16 17:32:05,876 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 (2)] Forceful destruction successful, exit code 0 [2023-12-16 17:32:06,075 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 [2023-12-16 17:32:06,076 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:06,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:06,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1714517900, now seen corresponding path program 1 times [2023-12-16 17:32:06,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:06,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [538397880] [2023-12-16 17:32:06,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:06,079 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 [2023-12-16 17:32:06,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:06,083 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) [2023-12-16 17:32:06,084 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 [2023-12-16 17:32:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:06,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:32:06,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:06,411 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 17:32:06,411 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:06,411 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:06,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [538397880] [2023-12-16 17:32:06,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [538397880] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:06,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:06,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:32:06,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981736591] [2023-12-16 17:32:06,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:06,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:32:06,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:06,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:32:06,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:32:06,414 INFO L87 Difference]: Start difference. First operand 363 states and 549 transitions. Second operand has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:32:06,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:06,553 INFO L93 Difference]: Finished difference Result 721 states and 1092 transitions. [2023-12-16 17:32:06,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:32:06,553 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 124 [2023-12-16 17:32:06,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:06,556 INFO L225 Difference]: With dead ends: 721 [2023-12-16 17:32:06,556 INFO L226 Difference]: Without dead ends: 365 [2023-12-16 17:32:06,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:32:06,558 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 8 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2077 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 [2023-12-16 17:32:06,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2077 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:06,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2023-12-16 17:32:06,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2023-12-16 17:32:06,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 271 states have (on average 1.5387453874538746) internal successors, (417), 276 states have internal predecessors, (417), 68 states have call successors, (68), 25 states have call predecessors, (68), 25 states have return successors, (67), 65 states have call predecessors, (67), 65 states have call successors, (67) [2023-12-16 17:32:06,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 552 transitions. [2023-12-16 17:32:06,572 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 552 transitions. Word has length 124 [2023-12-16 17:32:06,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:06,573 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 552 transitions. [2023-12-16 17:32:06,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:32:06,573 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 552 transitions. [2023-12-16 17:32:06,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-16 17:32:06,575 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:06,575 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2023-12-16 17:32:06,589 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 (3)] Forceful destruction successful, exit code 0 [2023-12-16 17:32:06,781 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 [2023-12-16 17:32:06,784 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:06,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:06,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1782913542, now seen corresponding path program 1 times [2023-12-16 17:32:06,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:06,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409162529] [2023-12-16 17:32:06,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:06,786 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 [2023-12-16 17:32:06,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:06,787 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) [2023-12-16 17:32:06,791 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 [2023-12-16 17:32:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:07,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:32:07,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:07,155 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 17:32:07,155 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:07,156 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:07,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409162529] [2023-12-16 17:32:07,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [409162529] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:07,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:07,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:32:07,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747032531] [2023-12-16 17:32:07,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:07,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:32:07,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:07,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:32:07,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:32:07,158 INFO L87 Difference]: Start difference. First operand 365 states and 552 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:32:07,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:07,378 INFO L93 Difference]: Finished difference Result 723 states and 1096 transitions. [2023-12-16 17:32:07,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:32:07,378 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 125 [2023-12-16 17:32:07,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:07,381 INFO L225 Difference]: With dead ends: 723 [2023-12-16 17:32:07,381 INFO L226 Difference]: Without dead ends: 367 [2023-12-16 17:32:07,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:32:07,383 INFO L413 NwaCegarLoop]: 520 mSDtfsCounter, 8 mSDsluCounter, 1543 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2063 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:07,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2063 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:07,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2023-12-16 17:32:07,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 367. [2023-12-16 17:32:07,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 272 states have (on average 1.536764705882353) internal successors, (418), 278 states have internal predecessors, (418), 68 states have call successors, (68), 25 states have call predecessors, (68), 26 states have return successors, (71), 65 states have call predecessors, (71), 65 states have call successors, (71) [2023-12-16 17:32:07,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 557 transitions. [2023-12-16 17:32:07,400 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 557 transitions. Word has length 125 [2023-12-16 17:32:07,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:07,400 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 557 transitions. [2023-12-16 17:32:07,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:32:07,401 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 557 transitions. [2023-12-16 17:32:07,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-16 17:32:07,403 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:07,403 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:32:07,428 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 [2023-12-16 17:32:07,628 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 [2023-12-16 17:32:07,629 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:07,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:07,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1124234506, now seen corresponding path program 1 times [2023-12-16 17:32:07,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:07,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1238372734] [2023-12-16 17:32:07,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:07,631 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 [2023-12-16 17:32:07,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:07,633 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) [2023-12-16 17:32:07,634 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 [2023-12-16 17:32:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:07,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:32:07,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:07,904 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 17:32:07,904 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:07,904 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:07,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1238372734] [2023-12-16 17:32:07,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1238372734] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:07,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:07,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:32:07,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709902569] [2023-12-16 17:32:07,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:07,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:32:07,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:07,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:32:07,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:32:07,908 INFO L87 Difference]: Start difference. First operand 367 states and 557 transitions. Second operand has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:32:08,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:08,022 INFO L93 Difference]: Finished difference Result 715 states and 1086 transitions. [2023-12-16 17:32:08,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:32:08,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 126 [2023-12-16 17:32:08,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:08,024 INFO L225 Difference]: With dead ends: 715 [2023-12-16 17:32:08,024 INFO L226 Difference]: Without dead ends: 367 [2023-12-16 17:32:08,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:32:08,026 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 8 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2077 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 [2023-12-16 17:32:08,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2077 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:08,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2023-12-16 17:32:08,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 367. [2023-12-16 17:32:08,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 272 states have (on average 1.536764705882353) internal successors, (418), 278 states have internal predecessors, (418), 68 states have call successors, (68), 25 states have call predecessors, (68), 26 states have return successors, (70), 65 states have call predecessors, (70), 65 states have call successors, (70) [2023-12-16 17:32:08,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 556 transitions. [2023-12-16 17:32:08,039 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 556 transitions. Word has length 126 [2023-12-16 17:32:08,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:08,039 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 556 transitions. [2023-12-16 17:32:08,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:32:08,040 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 556 transitions. [2023-12-16 17:32:08,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-16 17:32:08,041 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:08,041 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:32:08,059 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 [2023-12-16 17:32:08,247 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 [2023-12-16 17:32:08,247 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:08,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:08,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1391356962, now seen corresponding path program 2 times [2023-12-16 17:32:08,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:08,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [275533651] [2023-12-16 17:32:08,248 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 17:32:08,249 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 [2023-12-16 17:32:08,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:08,264 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) [2023-12-16 17:32:08,280 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 [2023-12-16 17:32:08,467 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-16 17:32:08,467 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 17:32:08,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:08,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:08,484 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-16 17:32:08,484 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:08,484 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:08,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [275533651] [2023-12-16 17:32:08,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [275533651] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:08,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:08,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:08,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829147949] [2023-12-16 17:32:08,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:08,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:08,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:08,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:08,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:08,486 INFO L87 Difference]: Start difference. First operand 367 states and 556 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:32:08,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:08,531 INFO L93 Difference]: Finished difference Result 583 states and 864 transitions. [2023-12-16 17:32:08,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:08,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 127 [2023-12-16 17:32:08,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:08,534 INFO L225 Difference]: With dead ends: 583 [2023-12-16 17:32:08,534 INFO L226 Difference]: Without dead ends: 369 [2023-12-16 17:32:08,535 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 [2023-12-16 17:32:08,535 INFO L413 NwaCegarLoop]: 531 mSDtfsCounter, 0 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:08,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1061 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:08,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2023-12-16 17:32:08,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 369. [2023-12-16 17:32:08,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 274 states have (on average 1.532846715328467) internal successors, (420), 280 states have internal predecessors, (420), 68 states have call successors, (68), 25 states have call predecessors, (68), 26 states have return successors, (70), 65 states have call predecessors, (70), 65 states have call successors, (70) [2023-12-16 17:32:08,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 558 transitions. [2023-12-16 17:32:08,547 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 558 transitions. Word has length 127 [2023-12-16 17:32:08,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:08,547 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 558 transitions. [2023-12-16 17:32:08,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:32:08,547 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 558 transitions. [2023-12-16 17:32:08,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-16 17:32:08,549 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:08,549 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1] [2023-12-16 17:32:08,556 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 (6)] Forceful destruction successful, exit code 0 [2023-12-16 17:32:08,758 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 [2023-12-16 17:32:08,758 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:08,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:08,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1542175474, now seen corresponding path program 1 times [2023-12-16 17:32:08,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:08,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [148643477] [2023-12-16 17:32:08,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:08,760 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 [2023-12-16 17:32:08,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:08,762 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) [2023-12-16 17:32:08,763 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 [2023-12-16 17:32:08,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:08,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:32:08,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:09,018 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-16 17:32:09,019 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:09,019 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:09,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [148643477] [2023-12-16 17:32:09,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [148643477] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:09,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:09,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:32:09,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586063462] [2023-12-16 17:32:09,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:09,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:32:09,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:09,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:32:09,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:32:09,020 INFO L87 Difference]: Start difference. First operand 369 states and 558 transitions. Second operand has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:32:09,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:09,116 INFO L93 Difference]: Finished difference Result 721 states and 1093 transitions. [2023-12-16 17:32:09,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:32:09,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 134 [2023-12-16 17:32:09,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:09,119 INFO L225 Difference]: With dead ends: 721 [2023-12-16 17:32:09,119 INFO L226 Difference]: Without dead ends: 371 [2023-12-16 17:32:09,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:32:09,120 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 6 mSDsluCounter, 1556 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2079 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:09,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2079 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:09,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2023-12-16 17:32:09,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2023-12-16 17:32:09,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 275 states have (on average 1.530909090909091) internal successors, (421), 282 states have internal predecessors, (421), 68 states have call successors, (68), 25 states have call predecessors, (68), 27 states have return successors, (72), 65 states have call predecessors, (72), 65 states have call successors, (72) [2023-12-16 17:32:09,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 561 transitions. [2023-12-16 17:32:09,130 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 561 transitions. Word has length 134 [2023-12-16 17:32:09,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:09,131 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 561 transitions. [2023-12-16 17:32:09,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:32:09,131 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 561 transitions. [2023-12-16 17:32:09,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-16 17:32:09,132 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:09,132 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:09,155 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 [2023-12-16 17:32:09,338 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 [2023-12-16 17:32:09,339 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:09,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:09,339 INFO L85 PathProgramCache]: Analyzing trace with hash -897808353, now seen corresponding path program 1 times [2023-12-16 17:32:09,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:09,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225604614] [2023-12-16 17:32:09,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:09,340 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 [2023-12-16 17:32:09,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:09,341 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) [2023-12-16 17:32:09,362 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 [2023-12-16 17:32:09,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:09,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:32:09,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:09,638 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-16 17:32:09,639 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:09,639 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:09,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225604614] [2023-12-16 17:32:09,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1225604614] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:09,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:09,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:32:09,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231938616] [2023-12-16 17:32:09,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:09,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:32:09,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:09,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:32:09,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:32:09,641 INFO L87 Difference]: Start difference. First operand 371 states and 561 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:32:09,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:09,749 INFO L93 Difference]: Finished difference Result 719 states and 1088 transitions. [2023-12-16 17:32:09,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:32:09,750 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2023-12-16 17:32:09,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:09,753 INFO L225 Difference]: With dead ends: 719 [2023-12-16 17:32:09,753 INFO L226 Difference]: Without dead ends: 371 [2023-12-16 17:32:09,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:32:09,755 INFO L413 NwaCegarLoop]: 520 mSDtfsCounter, 8 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2064 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 [2023-12-16 17:32:09,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2064 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:09,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2023-12-16 17:32:09,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2023-12-16 17:32:09,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 275 states have (on average 1.530909090909091) internal successors, (421), 282 states have internal predecessors, (421), 68 states have call successors, (68), 25 states have call predecessors, (68), 27 states have return successors, (71), 65 states have call predecessors, (71), 65 states have call successors, (71) [2023-12-16 17:32:09,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 560 transitions. [2023-12-16 17:32:09,767 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 560 transitions. Word has length 135 [2023-12-16 17:32:09,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:09,767 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 560 transitions. [2023-12-16 17:32:09,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:32:09,767 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 560 transitions. [2023-12-16 17:32:09,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-16 17:32:09,769 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:09,769 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:09,800 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 [2023-12-16 17:32:09,976 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 [2023-12-16 17:32:09,976 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:09,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:09,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1842406649, now seen corresponding path program 2 times [2023-12-16 17:32:09,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:09,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [855086799] [2023-12-16 17:32:09,977 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 17:32:09,978 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 [2023-12-16 17:32:09,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:09,979 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) [2023-12-16 17:32:10,043 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 [2023-12-16 17:32:10,253 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 17:32:10,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 17:32:10,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-16 17:32:10,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:10,435 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 17:32:10,435 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:32:10,682 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-16 17:32:10,682 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:10,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [855086799] [2023-12-16 17:32:10,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [855086799] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:32:10,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:32:10,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-16 17:32:10,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667765696] [2023-12-16 17:32:10,683 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:32:10,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 17:32:10,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:10,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 17:32:10,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-12-16 17:32:10,684 INFO L87 Difference]: Start difference. First operand 371 states and 560 transitions. Second operand has 16 states, 16 states have (on average 9.375) internal successors, (150), 14 states have internal predecessors, (150), 4 states have call successors, (37), 6 states have call predecessors, (37), 9 states have return successors, (33), 6 states have call predecessors, (33), 4 states have call successors, (33) [2023-12-16 17:32:14,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:14,305 INFO L93 Difference]: Finished difference Result 1277 states and 1949 transitions. [2023-12-16 17:32:14,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 17:32:14,305 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.375) internal successors, (150), 14 states have internal predecessors, (150), 4 states have call successors, (37), 6 states have call predecessors, (37), 9 states have return successors, (33), 6 states have call predecessors, (33), 4 states have call successors, (33) Word has length 136 [2023-12-16 17:32:14,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:14,311 INFO L225 Difference]: With dead ends: 1277 [2023-12-16 17:32:14,311 INFO L226 Difference]: Without dead ends: 1068 [2023-12-16 17:32:14,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2023-12-16 17:32:14,313 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 1949 mSDsluCounter, 2344 mSDsCounter, 0 mSdLazyCounter, 5232 mSolverCounterSat, 557 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2016 SdHoareTripleChecker+Valid, 2628 SdHoareTripleChecker+Invalid, 5789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 557 IncrementalHoareTripleChecker+Valid, 5232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:14,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2016 Valid, 2628 Invalid, 5789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [557 Valid, 5232 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-16 17:32:14,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2023-12-16 17:32:14,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 741. [2023-12-16 17:32:14,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 553 states have (on average 1.5316455696202531) internal successors, (847), 563 states have internal predecessors, (847), 132 states have call successors, (132), 50 states have call predecessors, (132), 55 states have return successors, (143), 131 states have call predecessors, (143), 128 states have call successors, (143) [2023-12-16 17:32:14,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 1122 transitions. [2023-12-16 17:32:14,407 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 1122 transitions. Word has length 136 [2023-12-16 17:32:14,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:14,408 INFO L495 AbstractCegarLoop]: Abstraction has 741 states and 1122 transitions. [2023-12-16 17:32:14,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.375) internal successors, (150), 14 states have internal predecessors, (150), 4 states have call successors, (37), 6 states have call predecessors, (37), 9 states have return successors, (33), 6 states have call predecessors, (33), 4 states have call successors, (33) [2023-12-16 17:32:14,408 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 1122 transitions. [2023-12-16 17:32:14,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-16 17:32:14,410 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:14,410 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:14,419 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 [2023-12-16 17:32:14,610 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 [2023-12-16 17:32:14,611 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:14,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:14,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1434963761, now seen corresponding path program 1 times [2023-12-16 17:32:14,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:14,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1378210979] [2023-12-16 17:32:14,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:14,612 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 [2023-12-16 17:32:14,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:14,613 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) [2023-12-16 17:32:14,647 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 [2023-12-16 17:32:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:14,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:32:14,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:14,860 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-16 17:32:14,860 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:14,860 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:14,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1378210979] [2023-12-16 17:32:14,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1378210979] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:14,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:14,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:32:14,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318990748] [2023-12-16 17:32:14,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:14,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:32:14,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:14,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:32:14,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:32:14,862 INFO L87 Difference]: Start difference. First operand 741 states and 1122 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:32:14,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:14,989 INFO L93 Difference]: Finished difference Result 1449 states and 2202 transitions. [2023-12-16 17:32:14,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:32:14,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 137 [2023-12-16 17:32:14,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:14,993 INFO L225 Difference]: With dead ends: 1449 [2023-12-16 17:32:14,993 INFO L226 Difference]: Without dead ends: 747 [2023-12-16 17:32:14,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:32:14,996 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 6 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2066 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:14,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2066 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:14,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2023-12-16 17:32:15,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 745. [2023-12-16 17:32:15,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 555 states have (on average 1.5297297297297296) internal successors, (849), 567 states have internal predecessors, (849), 132 states have call successors, (132), 50 states have call predecessors, (132), 57 states have return successors, (148), 131 states have call predecessors, (148), 128 states have call successors, (148) [2023-12-16 17:32:15,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1129 transitions. [2023-12-16 17:32:15,029 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1129 transitions. Word has length 137 [2023-12-16 17:32:15,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:15,029 INFO L495 AbstractCegarLoop]: Abstraction has 745 states and 1129 transitions. [2023-12-16 17:32:15,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:32:15,030 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1129 transitions. [2023-12-16 17:32:15,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-16 17:32:15,032 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:15,032 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:15,041 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 [2023-12-16 17:32:15,239 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 [2023-12-16 17:32:15,239 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:15,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:15,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1038303600, now seen corresponding path program 1 times [2023-12-16 17:32:15,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:15,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239599075] [2023-12-16 17:32:15,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:15,240 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 [2023-12-16 17:32:15,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:15,247 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) [2023-12-16 17:32:15,298 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 [2023-12-16 17:32:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:15,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:32:15,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:15,571 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-16 17:32:15,571 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:15,571 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:15,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239599075] [2023-12-16 17:32:15,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [239599075] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:15,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:15,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:32:15,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125063313] [2023-12-16 17:32:15,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:15,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:32:15,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:15,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:32:15,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:32:15,573 INFO L87 Difference]: Start difference. First operand 745 states and 1129 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:32:15,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:15,697 INFO L93 Difference]: Finished difference Result 1457 states and 2214 transitions. [2023-12-16 17:32:15,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:32:15,698 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 138 [2023-12-16 17:32:15,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:15,701 INFO L225 Difference]: With dead ends: 1457 [2023-12-16 17:32:15,701 INFO L226 Difference]: Without dead ends: 751 [2023-12-16 17:32:15,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:32:15,704 INFO L413 NwaCegarLoop]: 520 mSDtfsCounter, 6 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2064 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:15,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2064 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:15,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2023-12-16 17:32:15,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 745. [2023-12-16 17:32:15,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 555 states have (on average 1.5297297297297296) internal successors, (849), 567 states have internal predecessors, (849), 132 states have call successors, (132), 50 states have call predecessors, (132), 57 states have return successors, (148), 131 states have call predecessors, (148), 128 states have call successors, (148) [2023-12-16 17:32:15,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1129 transitions. [2023-12-16 17:32:15,737 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1129 transitions. Word has length 138 [2023-12-16 17:32:15,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:15,737 INFO L495 AbstractCegarLoop]: Abstraction has 745 states and 1129 transitions. [2023-12-16 17:32:15,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:32:15,738 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1129 transitions. [2023-12-16 17:32:15,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-16 17:32:15,740 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:15,740 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:15,746 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 (11)] Ended with exit code 0 [2023-12-16 17:32:15,946 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 [2023-12-16 17:32:15,946 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:15,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:15,947 INFO L85 PathProgramCache]: Analyzing trace with hash 868099666, now seen corresponding path program 1 times [2023-12-16 17:32:15,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:15,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2121545090] [2023-12-16 17:32:15,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:15,948 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 [2023-12-16 17:32:15,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:16,026 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) [2023-12-16 17:32:16,028 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 [2023-12-16 17:32:16,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:16,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:16,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:16,261 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:32:16,261 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:16,261 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:16,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2121545090] [2023-12-16 17:32:16,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2121545090] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:16,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:16,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:16,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098809303] [2023-12-16 17:32:16,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:16,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:16,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:16,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:16,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:16,262 INFO L87 Difference]: Start difference. First operand 745 states and 1129 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, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:32:16,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:16,340 INFO L93 Difference]: Finished difference Result 1557 states and 2396 transitions. [2023-12-16 17:32:16,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:16,340 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, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2023-12-16 17:32:16,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:16,358 INFO L225 Difference]: With dead ends: 1557 [2023-12-16 17:32:16,359 INFO L226 Difference]: Without dead ends: 857 [2023-12-16 17:32:16,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:16,362 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 109 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:16,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 1033 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:16,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2023-12-16 17:32:16,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 847. [2023-12-16 17:32:16,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 635 states have (on average 1.5480314960629922) internal successors, (983), 647 states have internal predecessors, (983), 154 states have call successors, (154), 50 states have call predecessors, (154), 57 states have return successors, (178), 153 states have call predecessors, (178), 150 states have call successors, (178) [2023-12-16 17:32:16,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1315 transitions. [2023-12-16 17:32:16,428 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1315 transitions. Word has length 138 [2023-12-16 17:32:16,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:16,429 INFO L495 AbstractCegarLoop]: Abstraction has 847 states and 1315 transitions. [2023-12-16 17:32:16,429 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, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:32:16,429 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1315 transitions. [2023-12-16 17:32:16,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 17:32:16,432 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:16,432 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:16,442 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 [2023-12-16 17:32:16,640 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 [2023-12-16 17:32:16,640 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:16,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:16,640 INFO L85 PathProgramCache]: Analyzing trace with hash 484497349, now seen corresponding path program 1 times [2023-12-16 17:32:16,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:16,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533644491] [2023-12-16 17:32:16,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:16,641 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 [2023-12-16 17:32:16,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:16,642 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) [2023-12-16 17:32:16,690 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 [2023-12-16 17:32:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:16,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:32:16,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:16,937 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 17:32:16,937 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:16,937 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:16,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533644491] [2023-12-16 17:32:16,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [533644491] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:16,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:16,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:32:16,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340873157] [2023-12-16 17:32:16,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:16,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:32:16,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:16,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:32:16,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:32:16,939 INFO L87 Difference]: Start difference. First operand 847 states and 1315 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:32:17,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:17,032 INFO L93 Difference]: Finished difference Result 1663 states and 2579 transitions. [2023-12-16 17:32:17,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:32:17,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 139 [2023-12-16 17:32:17,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:17,037 INFO L225 Difference]: With dead ends: 1663 [2023-12-16 17:32:17,037 INFO L226 Difference]: Without dead ends: 859 [2023-12-16 17:32:17,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:32:17,041 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 510 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:17,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 1082 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:17,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2023-12-16 17:32:17,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 855. [2023-12-16 17:32:17,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 641 states have (on average 1.53198127925117) internal successors, (982), 653 states have internal predecessors, (982), 154 states have call successors, (154), 52 states have call predecessors, (154), 59 states have return successors, (176), 153 states have call predecessors, (176), 150 states have call successors, (176) [2023-12-16 17:32:17,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1312 transitions. [2023-12-16 17:32:17,082 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1312 transitions. Word has length 139 [2023-12-16 17:32:17,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:17,083 INFO L495 AbstractCegarLoop]: Abstraction has 855 states and 1312 transitions. [2023-12-16 17:32:17,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:32:17,083 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1312 transitions. [2023-12-16 17:32:17,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-16 17:32:17,087 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:17,087 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:17,099 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 [2023-12-16 17:32:17,296 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 [2023-12-16 17:32:17,296 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:17,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:17,297 INFO L85 PathProgramCache]: Analyzing trace with hash 326327835, now seen corresponding path program 1 times [2023-12-16 17:32:17,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:17,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110910699] [2023-12-16 17:32:17,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:17,298 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 [2023-12-16 17:32:17,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:17,299 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) [2023-12-16 17:32:17,335 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 [2023-12-16 17:32:17,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:17,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:32:17,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:17,650 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:32:17,650 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:32:17,722 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:32:17,722 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:17,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110910699] [2023-12-16 17:32:17,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2110910699] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:32:17,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:32:17,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-16 17:32:17,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445137280] [2023-12-16 17:32:17,722 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:32:17,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:32:17,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:17,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:32:17,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:32:17,725 INFO L87 Difference]: Start difference. First operand 855 states and 1312 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-16 17:32:18,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:18,026 INFO L93 Difference]: Finished difference Result 1973 states and 3148 transitions. [2023-12-16 17:32:18,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:32:18,027 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 140 [2023-12-16 17:32:18,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:18,040 INFO L225 Difference]: With dead ends: 1973 [2023-12-16 17:32:18,040 INFO L226 Difference]: Without dead ends: 1545 [2023-12-16 17:32:18,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:32:18,043 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 359 mSDsluCounter, 2167 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 2724 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:18,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 2724 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:32:18,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2023-12-16 17:32:18,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1515. [2023-12-16 17:32:18,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1173 states have (on average 1.587382779198636) internal successors, (1862), 1185 states have internal predecessors, (1862), 282 states have call successors, (282), 52 states have call predecessors, (282), 59 states have return successors, (344), 281 states have call predecessors, (344), 278 states have call successors, (344) [2023-12-16 17:32:18,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 2488 transitions. [2023-12-16 17:32:18,120 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 2488 transitions. Word has length 140 [2023-12-16 17:32:18,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:18,120 INFO L495 AbstractCegarLoop]: Abstraction has 1515 states and 2488 transitions. [2023-12-16 17:32:18,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-16 17:32:18,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 2488 transitions. [2023-12-16 17:32:18,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 17:32:18,127 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:18,127 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:18,148 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 [2023-12-16 17:32:18,335 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 [2023-12-16 17:32:18,336 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:18,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:18,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1143142225, now seen corresponding path program 1 times [2023-12-16 17:32:18,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:18,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [96469794] [2023-12-16 17:32:18,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:18,337 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 [2023-12-16 17:32:18,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:18,340 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) [2023-12-16 17:32:18,341 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 [2023-12-16 17:32:18,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:18,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:18,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:18,593 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:32:18,593 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:18,593 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:18,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [96469794] [2023-12-16 17:32:18,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [96469794] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:18,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:18,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:18,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584380838] [2023-12-16 17:32:18,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:18,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:18,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:18,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:18,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:18,595 INFO L87 Difference]: Start difference. First operand 1515 states and 2488 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:32:18,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:18,683 INFO L93 Difference]: Finished difference Result 3527 states and 5913 transitions. [2023-12-16 17:32:18,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:18,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2023-12-16 17:32:18,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:18,692 INFO L225 Difference]: With dead ends: 3527 [2023-12-16 17:32:18,692 INFO L226 Difference]: Without dead ends: 2149 [2023-12-16 17:32:18,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:18,697 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 103 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:18,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 1061 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:18,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2149 states. [2023-12-16 17:32:18,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2149 to 2139. [2023-12-16 17:32:18,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 1669 states have (on average 1.6093469143199521) internal successors, (2686), 1681 states have internal predecessors, (2686), 410 states have call successors, (410), 52 states have call predecessors, (410), 59 states have return successors, (512), 409 states have call predecessors, (512), 406 states have call successors, (512) [2023-12-16 17:32:18,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 3608 transitions. [2023-12-16 17:32:18,844 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 3608 transitions. Word has length 143 [2023-12-16 17:32:18,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:18,844 INFO L495 AbstractCegarLoop]: Abstraction has 2139 states and 3608 transitions. [2023-12-16 17:32:18,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:32:18,845 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 3608 transitions. [2023-12-16 17:32:18,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-16 17:32:18,855 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:18,855 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:18,862 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 (15)] Ended with exit code 0 [2023-12-16 17:32:19,061 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 [2023-12-16 17:32:19,063 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:19,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:19,063 INFO L85 PathProgramCache]: Analyzing trace with hash 28910047, now seen corresponding path program 1 times [2023-12-16 17:32:19,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:19,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1154065912] [2023-12-16 17:32:19,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:19,064 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 [2023-12-16 17:32:19,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:19,065 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) [2023-12-16 17:32:19,066 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 [2023-12-16 17:32:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:19,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:19,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:19,379 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:32:19,379 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:19,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:19,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1154065912] [2023-12-16 17:32:19,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1154065912] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:19,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:19,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:19,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766880259] [2023-12-16 17:32:19,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:19,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:19,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:19,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:19,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:19,382 INFO L87 Difference]: Start difference. First operand 2139 states and 3608 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:32:19,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:19,531 INFO L93 Difference]: Finished difference Result 5055 states and 8599 transitions. [2023-12-16 17:32:19,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:19,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 144 [2023-12-16 17:32:19,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:19,551 INFO L225 Difference]: With dead ends: 5055 [2023-12-16 17:32:19,552 INFO L226 Difference]: Without dead ends: 3153 [2023-12-16 17:32:19,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:19,564 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 101 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:19,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 1049 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:19,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3153 states. [2023-12-16 17:32:19,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3153 to 3143. [2023-12-16 17:32:19,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3143 states, 2483 states have (on average 1.617398308497785) internal successors, (4016), 2495 states have internal predecessors, (4016), 600 states have call successors, (600), 52 states have call predecessors, (600), 59 states have return successors, (734), 599 states have call predecessors, (734), 596 states have call successors, (734) [2023-12-16 17:32:19,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3143 states to 3143 states and 5350 transitions. [2023-12-16 17:32:19,815 INFO L78 Accepts]: Start accepts. Automaton has 3143 states and 5350 transitions. Word has length 144 [2023-12-16 17:32:19,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:19,816 INFO L495 AbstractCegarLoop]: Abstraction has 3143 states and 5350 transitions. [2023-12-16 17:32:19,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:32:19,816 INFO L276 IsEmpty]: Start isEmpty. Operand 3143 states and 5350 transitions. [2023-12-16 17:32:19,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-16 17:32:19,837 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:19,838 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:19,853 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 [2023-12-16 17:32:20,047 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 [2023-12-16 17:32:20,047 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:20,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:20,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1338166787, now seen corresponding path program 1 times [2023-12-16 17:32:20,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:20,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [15886733] [2023-12-16 17:32:20,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:20,049 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 [2023-12-16 17:32:20,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:20,050 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) [2023-12-16 17:32:20,084 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 [2023-12-16 17:32:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:20,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:20,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:20,370 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:32:20,370 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:20,370 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:20,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [15886733] [2023-12-16 17:32:20,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [15886733] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:20,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:20,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:20,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021416524] [2023-12-16 17:32:20,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:20,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:20,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:20,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:20,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:20,372 INFO L87 Difference]: Start difference. First operand 3143 states and 5350 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:32:20,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:20,529 INFO L93 Difference]: Finished difference Result 7325 states and 12599 transitions. [2023-12-16 17:32:20,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:20,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 145 [2023-12-16 17:32:20,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:20,551 INFO L225 Difference]: With dead ends: 7325 [2023-12-16 17:32:20,552 INFO L226 Difference]: Without dead ends: 4671 [2023-12-16 17:32:20,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:20,562 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 99 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:20,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 1044 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:20,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4671 states. [2023-12-16 17:32:20,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4671 to 4661. [2023-12-16 17:32:20,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4661 states, 3755 states have (on average 1.6239680426098535) internal successors, (6098), 3767 states have internal predecessors, (6098), 846 states have call successors, (846), 52 states have call predecessors, (846), 59 states have return successors, (1064), 845 states have call predecessors, (1064), 842 states have call successors, (1064) [2023-12-16 17:32:20,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4661 states to 4661 states and 8008 transitions. [2023-12-16 17:32:20,867 INFO L78 Accepts]: Start accepts. Automaton has 4661 states and 8008 transitions. Word has length 145 [2023-12-16 17:32:20,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:20,867 INFO L495 AbstractCegarLoop]: Abstraction has 4661 states and 8008 transitions. [2023-12-16 17:32:20,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:32:20,868 INFO L276 IsEmpty]: Start isEmpty. Operand 4661 states and 8008 transitions. [2023-12-16 17:32:20,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-16 17:32:20,887 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:20,887 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:20,894 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 (17)] Ended with exit code 0 [2023-12-16 17:32:21,093 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 [2023-12-16 17:32:21,093 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:21,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:21,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1971372992, now seen corresponding path program 1 times [2023-12-16 17:32:21,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:21,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167938716] [2023-12-16 17:32:21,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:21,095 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 [2023-12-16 17:32:21,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:21,096 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) [2023-12-16 17:32:21,113 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 [2023-12-16 17:32:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:21,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:21,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:21,408 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:32:21,408 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:21,408 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:21,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167938716] [2023-12-16 17:32:21,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [167938716] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:21,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:21,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:21,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091493790] [2023-12-16 17:32:21,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:21,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:21,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:21,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:21,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:21,412 INFO L87 Difference]: Start difference. First operand 4661 states and 8008 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:32:21,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:21,743 INFO L93 Difference]: Finished difference Result 10853 states and 18833 transitions. [2023-12-16 17:32:21,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:21,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 146 [2023-12-16 17:32:21,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:21,807 INFO L225 Difference]: With dead ends: 10853 [2023-12-16 17:32:21,807 INFO L226 Difference]: Without dead ends: 7093 [2023-12-16 17:32:21,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:21,822 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 97 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:21,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 1044 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:21,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7093 states. [2023-12-16 17:32:22,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7093 to 7083. [2023-12-16 17:32:22,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7083 states, 5819 states have (on average 1.6284584980237153) internal successors, (9476), 5831 states have internal predecessors, (9476), 1204 states have call successors, (1204), 52 states have call predecessors, (1204), 59 states have return successors, (1562), 1203 states have call predecessors, (1562), 1200 states have call successors, (1562) [2023-12-16 17:32:22,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7083 states to 7083 states and 12242 transitions. [2023-12-16 17:32:22,184 INFO L78 Accepts]: Start accepts. Automaton has 7083 states and 12242 transitions. Word has length 146 [2023-12-16 17:32:22,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:22,185 INFO L495 AbstractCegarLoop]: Abstraction has 7083 states and 12242 transitions. [2023-12-16 17:32:22,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:32:22,185 INFO L276 IsEmpty]: Start isEmpty. Operand 7083 states and 12242 transitions. [2023-12-16 17:32:22,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-16 17:32:22,217 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:22,217 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:22,225 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 [2023-12-16 17:32:22,424 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 [2023-12-16 17:32:22,425 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:22,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:22,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1623382407, now seen corresponding path program 1 times [2023-12-16 17:32:22,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:22,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1109465792] [2023-12-16 17:32:22,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:22,426 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 [2023-12-16 17:32:22,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:22,433 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) [2023-12-16 17:32:22,435 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 [2023-12-16 17:32:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:22,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:22,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:22,733 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:32:22,734 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:22,734 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:22,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1109465792] [2023-12-16 17:32:22,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1109465792] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:22,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:22,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:22,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131157052] [2023-12-16 17:32:22,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:22,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:22,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:22,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:22,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:22,738 INFO L87 Difference]: Start difference. First operand 7083 states and 12242 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:32:23,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:23,187 INFO L93 Difference]: Finished difference Result 16749 states and 29171 transitions. [2023-12-16 17:32:23,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:23,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2023-12-16 17:32:23,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:23,221 INFO L225 Difference]: With dead ends: 16749 [2023-12-16 17:32:23,221 INFO L226 Difference]: Without dead ends: 11165 [2023-12-16 17:32:23,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:23,237 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 95 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:23,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 1053 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:23,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11165 states. [2023-12-16 17:32:23,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11165 to 11155. [2023-12-16 17:32:23,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11155 states, 9139 states have (on average 1.6183389867600393) internal successors, (14790), 9151 states have internal predecessors, (14790), 1956 states have call successors, (1956), 52 states have call predecessors, (1956), 59 states have return successors, (2558), 1955 states have call predecessors, (2558), 1952 states have call successors, (2558) [2023-12-16 17:32:23,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11155 states to 11155 states and 19304 transitions. [2023-12-16 17:32:23,716 INFO L78 Accepts]: Start accepts. Automaton has 11155 states and 19304 transitions. Word has length 147 [2023-12-16 17:32:23,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:23,717 INFO L495 AbstractCegarLoop]: Abstraction has 11155 states and 19304 transitions. [2023-12-16 17:32:23,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:32:23,717 INFO L276 IsEmpty]: Start isEmpty. Operand 11155 states and 19304 transitions. [2023-12-16 17:32:23,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-16 17:32:23,750 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:23,750 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:23,770 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 (19)] Forceful destruction successful, exit code 0 [2023-12-16 17:32:23,955 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 [2023-12-16 17:32:23,956 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:23,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:23,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1495917508, now seen corresponding path program 1 times [2023-12-16 17:32:23,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:23,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571486144] [2023-12-16 17:32:23,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:23,957 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 [2023-12-16 17:32:23,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:24,012 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) [2023-12-16 17:32:24,015 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 [2023-12-16 17:32:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:24,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:24,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:24,288 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:32:24,288 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:24,289 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:24,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571486144] [2023-12-16 17:32:24,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571486144] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:24,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:24,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:24,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275315261] [2023-12-16 17:32:24,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:24,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:24,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:24,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:24,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:24,290 INFO L87 Difference]: Start difference. First operand 11155 states and 19304 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:32:24,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:24,949 INFO L93 Difference]: Finished difference Result 27359 states and 47583 transitions. [2023-12-16 17:32:24,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:24,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 148 [2023-12-16 17:32:24,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:25,011 INFO L225 Difference]: With dead ends: 27359 [2023-12-16 17:32:25,011 INFO L226 Difference]: Without dead ends: 18465 [2023-12-16 17:32:25,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:25,033 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 93 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:25,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 1051 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:25,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18465 states. [2023-12-16 17:32:25,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18465 to 18455. [2023-12-16 17:32:25,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18455 states, 15227 states have (on average 1.6166020883956131) internal successors, (24616), 15239 states have internal predecessors, (24616), 3168 states have call successors, (3168), 52 states have call predecessors, (3168), 59 states have return successors, (4070), 3167 states have call predecessors, (4070), 3164 states have call successors, (4070) [2023-12-16 17:32:25,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18455 states to 18455 states and 31854 transitions. [2023-12-16 17:32:25,979 INFO L78 Accepts]: Start accepts. Automaton has 18455 states and 31854 transitions. Word has length 148 [2023-12-16 17:32:25,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:25,979 INFO L495 AbstractCegarLoop]: Abstraction has 18455 states and 31854 transitions. [2023-12-16 17:32:25,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:32:25,980 INFO L276 IsEmpty]: Start isEmpty. Operand 18455 states and 31854 transitions. [2023-12-16 17:32:26,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-16 17:32:26,030 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:26,030 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:26,050 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 (20)] Forceful destruction successful, exit code 0 [2023-12-16 17:32:26,236 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 [2023-12-16 17:32:26,236 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:26,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:26,236 INFO L85 PathProgramCache]: Analyzing trace with hash -2006734297, now seen corresponding path program 1 times [2023-12-16 17:32:26,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:26,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [295277958] [2023-12-16 17:32:26,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:26,237 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 [2023-12-16 17:32:26,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:26,238 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) [2023-12-16 17:32:26,244 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 [2023-12-16 17:32:26,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:26,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:26,451 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:26,471 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:32:26,471 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:26,471 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:26,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [295277958] [2023-12-16 17:32:26,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [295277958] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:26,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:26,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:26,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352858866] [2023-12-16 17:32:26,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:26,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:26,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:26,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:26,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:26,472 INFO L87 Difference]: Start difference. First operand 18455 states and 31854 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:32:27,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:27,519 INFO L93 Difference]: Finished difference Result 47533 states and 82481 transitions. [2023-12-16 17:32:27,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:27,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 149 [2023-12-16 17:32:27,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:27,635 INFO L225 Difference]: With dead ends: 47533 [2023-12-16 17:32:27,635 INFO L226 Difference]: Without dead ends: 32241 [2023-12-16 17:32:27,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:27,672 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 91 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:27,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1063 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:27,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32241 states. [2023-12-16 17:32:29,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32241 to 32231. [2023-12-16 17:32:29,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32231 states, 26597 states have (on average 1.6080760988081362) internal successors, (42770), 26609 states have internal predecessors, (42770), 5574 states have call successors, (5574), 52 states have call predecessors, (5574), 59 states have return successors, (7182), 5573 states have call predecessors, (7182), 5570 states have call successors, (7182) [2023-12-16 17:32:29,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32231 states to 32231 states and 55526 transitions. [2023-12-16 17:32:29,503 INFO L78 Accepts]: Start accepts. Automaton has 32231 states and 55526 transitions. Word has length 149 [2023-12-16 17:32:29,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:29,503 INFO L495 AbstractCegarLoop]: Abstraction has 32231 states and 55526 transitions. [2023-12-16 17:32:29,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:32:29,504 INFO L276 IsEmpty]: Start isEmpty. Operand 32231 states and 55526 transitions. [2023-12-16 17:32:29,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-16 17:32:29,626 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:29,627 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:29,649 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 (21)] Forceful destruction successful, exit code 0 [2023-12-16 17:32:29,833 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 [2023-12-16 17:32:29,833 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:29,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:29,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1867169979, now seen corresponding path program 1 times [2023-12-16 17:32:29,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:29,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [452421110] [2023-12-16 17:32:29,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:29,977 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 [2023-12-16 17:32:29,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:30,001 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) [2023-12-16 17:32:30,024 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 [2023-12-16 17:32:30,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:30,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:30,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:30,275 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:32:30,275 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:30,275 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:30,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [452421110] [2023-12-16 17:32:30,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [452421110] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:30,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:30,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:30,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975852317] [2023-12-16 17:32:30,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:30,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:30,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:30,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:30,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:30,277 INFO L87 Difference]: Start difference. First operand 32231 states and 55526 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:32:32,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:32,221 INFO L93 Difference]: Finished difference Result 85079 states and 147423 transitions. [2023-12-16 17:32:32,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:32,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2023-12-16 17:32:32,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:32,392 INFO L225 Difference]: With dead ends: 85079 [2023-12-16 17:32:32,392 INFO L226 Difference]: Without dead ends: 57293 [2023-12-16 17:32:32,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:32,448 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 89 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:32,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 1047 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:32,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57293 states. [2023-12-16 17:32:35,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57293 to 57283. [2023-12-16 17:32:35,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57283 states, 47571 states have (on average 1.6043387778268272) internal successors, (76320), 47583 states have internal predecessors, (76320), 9652 states have call successors, (9652), 52 states have call predecessors, (9652), 59 states have return successors, (12614), 9651 states have call predecessors, (12614), 9648 states have call successors, (12614) [2023-12-16 17:32:35,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57283 states to 57283 states and 98586 transitions. [2023-12-16 17:32:35,331 INFO L78 Accepts]: Start accepts. Automaton has 57283 states and 98586 transitions. Word has length 150 [2023-12-16 17:32:35,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:35,332 INFO L495 AbstractCegarLoop]: Abstraction has 57283 states and 98586 transitions. [2023-12-16 17:32:35,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:32:35,332 INFO L276 IsEmpty]: Start isEmpty. Operand 57283 states and 98586 transitions. [2023-12-16 17:32:35,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-16 17:32:35,453 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:35,453 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:35,480 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 [2023-12-16 17:32:35,659 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 [2023-12-16 17:32:35,660 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:35,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:35,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1975368375, now seen corresponding path program 1 times [2023-12-16 17:32:35,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:35,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [770829499] [2023-12-16 17:32:35,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:35,661 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 [2023-12-16 17:32:35,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:35,662 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) [2023-12-16 17:32:35,711 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 [2023-12-16 17:32:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:35,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:35,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:35,933 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:32:35,933 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:35,933 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:35,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [770829499] [2023-12-16 17:32:35,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [770829499] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:35,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:35,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:35,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612300652] [2023-12-16 17:32:35,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:35,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:35,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:35,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:35,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:35,935 INFO L87 Difference]: Start difference. First operand 57283 states and 98586 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:32:39,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:39,664 INFO L93 Difference]: Finished difference Result 155833 states and 268337 transitions. [2023-12-16 17:32:39,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:39,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 151 [2023-12-16 17:32:39,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:40,162 INFO L225 Difference]: With dead ends: 155833 [2023-12-16 17:32:40,163 INFO L226 Difference]: Without dead ends: 104537 [2023-12-16 17:32:40,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:40,254 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 87 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:40,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 1047 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:40,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104537 states. [2023-12-16 17:32:44,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104537 to 104527. [2023-12-16 17:32:44,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104527 states, 87385 states have (on average 1.5991760599645248) internal successors, (139744), 87397 states have internal predecessors, (139744), 17082 states have call successors, (17082), 52 states have call predecessors, (17082), 59 states have return successors, (21640), 17081 states have call predecessors, (21640), 17078 states have call successors, (21640) [2023-12-16 17:32:44,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104527 states to 104527 states and 178466 transitions. [2023-12-16 17:32:44,988 INFO L78 Accepts]: Start accepts. Automaton has 104527 states and 178466 transitions. Word has length 151 [2023-12-16 17:32:44,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:44,989 INFO L495 AbstractCegarLoop]: Abstraction has 104527 states and 178466 transitions. [2023-12-16 17:32:44,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:32:44,989 INFO L276 IsEmpty]: Start isEmpty. Operand 104527 states and 178466 transitions. [2023-12-16 17:32:45,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 17:32:45,127 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:45,128 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:45,138 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 [2023-12-16 17:32:45,335 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 [2023-12-16 17:32:45,335 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:45,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:45,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1099701797, now seen corresponding path program 1 times [2023-12-16 17:32:45,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:45,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [395656411] [2023-12-16 17:32:45,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:45,336 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 [2023-12-16 17:32:45,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:45,338 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) [2023-12-16 17:32:45,370 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 [2023-12-16 17:32:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:45,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:45,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:45,576 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:32:45,577 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:45,577 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:45,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [395656411] [2023-12-16 17:32:45,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [395656411] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:45,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:45,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:45,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512847971] [2023-12-16 17:32:45,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:45,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:45,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:45,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:45,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:45,578 INFO L87 Difference]: Start difference. First operand 104527 states and 178466 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:32:51,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:51,735 INFO L93 Difference]: Finished difference Result 194863 states and 333574 transitions. [2023-12-16 17:32:51,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:51,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2023-12-16 17:32:51,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:52,627 INFO L225 Difference]: With dead ends: 194863 [2023-12-16 17:32:52,627 INFO L226 Difference]: Without dead ends: 194435 [2023-12-16 17:32:52,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:52,715 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 85 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:52,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 1047 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:52,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194435 states. [2023-12-16 17:33:00,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194435 to 194425. [2023-12-16 17:33:00,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194425 states, 163685 states have (on average 1.5924733481992852) internal successors, (260664), 163697 states have internal predecessors, (260664), 30680 states have call successors, (30680), 52 states have call predecessors, (30680), 59 states have return successors, (39422), 30679 states have call predecessors, (39422), 30676 states have call successors, (39422) [2023-12-16 17:33:01,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194425 states to 194425 states and 330766 transitions. [2023-12-16 17:33:01,720 INFO L78 Accepts]: Start accepts. Automaton has 194425 states and 330766 transitions. Word has length 152 [2023-12-16 17:33:01,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:33:01,721 INFO L495 AbstractCegarLoop]: Abstraction has 194425 states and 330766 transitions. [2023-12-16 17:33:01,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:33:01,721 INFO L276 IsEmpty]: Start isEmpty. Operand 194425 states and 330766 transitions. [2023-12-16 17:33:02,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 17:33:02,258 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:33:02,258 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:33:02,265 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 [2023-12-16 17:33:02,465 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 [2023-12-16 17:33:02,466 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:33:02,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:33:02,466 INFO L85 PathProgramCache]: Analyzing trace with hash -499839672, now seen corresponding path program 1 times [2023-12-16 17:33:02,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:33:02,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [961608589] [2023-12-16 17:33:02,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:33:02,467 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 [2023-12-16 17:33:02,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:33:02,468 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) [2023-12-16 17:33:02,500 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 [2023-12-16 17:33:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:33:02,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-16 17:33:02,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:33:02,846 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-16 17:33:02,846 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:33:03,126 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-16 17:33:03,127 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:33:03,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [961608589] [2023-12-16 17:33:03,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [961608589] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:33:03,127 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:33:03,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-16 17:33:03,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329871349] [2023-12-16 17:33:03,127 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:33:03,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 17:33:03,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:33:03,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 17:33:03,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-12-16 17:33:03,129 INFO L87 Difference]: Start difference. First operand 194425 states and 330766 transitions. Second operand has 16 states, 16 states have (on average 11.0) internal successors, (176), 14 states have internal predecessors, (176), 4 states have call successors, (37), 6 states have call predecessors, (37), 9 states have return successors, (33), 6 states have call predecessors, (33), 4 states have call successors, (33) Received shutdown request... [2023-12-16 17:33:03,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 17:33:03,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2023-12-16 17:33:03,846 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 482 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 1214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 17:33:03,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 1049 Invalid, 1214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 17:33:03,847 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:33:03,853 WARN L340 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)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:33:03,855 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:33:03,855 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 (25)] Forceful destruction successful, exit code 0 [2023-12-16 17:33:04,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /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 [2023-12-16 17:33:04,054 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (194425states) and FLOYD_HOARE automaton (currently 14 states, 16 states before enhancement),while ReachableStatesComputation was computing reachable states (708 states constructed, input type IntersectNwa). [2023-12-16 17:33:04,057 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:33:04,059 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:33:04,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:33:04 BoogieIcfgContainer [2023-12-16 17:33:04,064 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:33:04,064 INFO L158 Benchmark]: Toolchain (without parser) took 60934.88ms. Allocated memory was 323.0MB in the beginning and 7.6GB in the end (delta: 7.3GB). Free memory was 268.4MB in the beginning and 5.6GB in the end (delta: -5.4GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2023-12-16 17:33:04,064 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 182.5MB. Free memory is still 133.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:33:04,064 INFO L158 Benchmark]: CACSL2BoogieTranslator took 786.79ms. Allocated memory is still 323.0MB. Free memory was 267.9MB in the beginning and 205.4MB in the end (delta: 62.5MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. [2023-12-16 17:33:04,065 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.47ms. Allocated memory is still 323.0MB. Free memory was 205.4MB in the beginning and 199.2MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 17:33:04,066 INFO L158 Benchmark]: Boogie Preprocessor took 133.23ms. Allocated memory is still 323.0MB. Free memory was 199.2MB in the beginning and 191.9MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-16 17:33:04,066 INFO L158 Benchmark]: RCFGBuilder took 1003.89ms. Allocated memory is still 323.0MB. Free memory was 191.4MB in the beginning and 266.2MB in the end (delta: -74.8MB). Peak memory consumption was 88.2MB. Max. memory is 8.0GB. [2023-12-16 17:33:04,066 INFO L158 Benchmark]: TraceAbstraction took 58922.99ms. Allocated memory was 323.0MB in the beginning and 7.6GB in the end (delta: 7.3GB). Free memory was 265.7MB in the beginning and 5.6GB in the end (delta: -5.4GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2023-12-16 17:33:04,068 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 182.5MB. Free memory is still 133.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 786.79ms. Allocated memory is still 323.0MB. Free memory was 267.9MB in the beginning and 205.4MB in the end (delta: 62.5MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 81.47ms. Allocated memory is still 323.0MB. Free memory was 205.4MB in the beginning and 199.2MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 133.23ms. Allocated memory is still 323.0MB. Free memory was 199.2MB in the beginning and 191.9MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1003.89ms. Allocated memory is still 323.0MB. Free memory was 191.4MB in the beginning and 266.2MB in the end (delta: -74.8MB). Peak memory consumption was 88.2MB. Max. memory is 8.0GB. * TraceAbstraction took 58922.99ms. Allocated memory was 323.0MB in the beginning and 7.6GB in the end (delta: 7.3GB). Free memory was 265.7MB in the beginning and 5.6GB in the end (delta: -5.4GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] - GenericResultAtLocation [Line: 375]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [375] - GenericResultAtLocation [Line: 787]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [787] - GenericResultAtLocation [Line: 1858]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1858] - GenericResultAtLocation [Line: 1893]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1893] - GenericResultAtLocation [Line: 2031]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2031] - GenericResultAtLocation [Line: 2397]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2397] - GenericResultAtLocation [Line: 2616]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2616] - GenericResultAtLocation [Line: 3009]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [3009] - GenericResultAtLocation [Line: 3026]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [3026] - GenericResultAtLocation [Line: 3085]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3085] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 3090]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 3090). Cancelled while NwaCegarLoop was constructing difference of abstraction (194425states) and FLOYD_HOARE automaton (currently 14 states, 16 states before enhancement),while ReachableStatesComputation was computing reachable states (708 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 26 procedures, 367 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 58.9s, OverallIterations: 24, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 1.1s, AutomataDifference: 23.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4674 SdHoareTripleChecker+Valid, 5.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4399 mSDsluCounter, 35107 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23047 mSDsCounter, 657 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7893 IncrementalHoareTripleChecker+Invalid, 8550 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 657 mSolverCounterUnsat, 12060 mSDtfsCounter, 7893 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3787 GetRequests, 3689 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=194425occurred in iteration=23, InterpolantAutomatonStates: 101, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 21.4s AutomataMinimizationTime, 23 MinimizatonAttempts, 479 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.2s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 3350 NumberOfCodeBlocks, 3286 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 3752 ConstructedInterpolants, 0 QuantifiedInterpolants, 5136 SizeOfPredicates, 37 NumberOfNonLiveVariables, 14347 ConjunctsInSsa, 106 ConjunctsInUnsatCore, 27 InterpolantComputations, 21 PerfectInterpolantSequences, 1140/1170 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown