/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_spec7_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:53:59,676 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:53:59,760 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 05:53:59,767 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:53:59,767 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:53:59,803 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:53:59,804 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:53:59,804 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:53:59,805 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:53:59,805 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:53:59,805 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:53:59,806 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:53:59,806 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:53:59,806 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:53:59,807 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:53:59,807 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:53:59,808 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:53:59,810 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:53:59,811 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:53:59,811 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:53:59,812 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:53:59,815 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:53:59,815 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:53:59,815 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:53:59,816 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:53:59,816 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:53:59,816 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:53:59,816 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:53:59,817 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:53:59,817 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:53:59,817 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:53:59,817 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:53:59,818 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:53:59,818 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:53:59,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:53:59,818 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:53:59,819 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:53:59,819 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:53:59,819 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:53:59,819 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:53:59,819 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:53:59,821 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:53:59,821 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:53:59,821 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:53:59,822 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:53:59,822 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:53:59,822 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:54:00,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:54:00,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:54:00,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:54:00,110 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:54:00,112 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:54:00,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product30.cil.c [2023-12-25 05:54:01,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:54:01,690 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:54:01,691 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product30.cil.c [2023-12-25 05:54:01,717 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aee71e52/963d95799c1343b2a8c1168a44acda0e/FLAG7e3304188 [2023-12-25 05:54:01,731 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aee71e52/963d95799c1343b2a8c1168a44acda0e [2023-12-25 05:54:01,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:54:01,734 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:54:01,736 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:54:01,736 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:54:01,744 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:54:01,744 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:54:01" (1/1) ... [2023-12-25 05:54:01,745 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@384660f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:54:01, skipping insertion in model container [2023-12-25 05:54:01,745 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:54:01" (1/1) ... [2023-12-25 05:54:01,819 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:54:02,304 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product30.cil.c[50838,50851] [2023-12-25 05:54:02,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:54:02,399 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:54:02,414 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:54:02,503 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product30.cil.c[50838,50851] [2023-12-25 05:54:02,521 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:54:02,526 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:54:02,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2023-12-25 05:54:02,536 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [414] [2023-12-25 05:54:02,536 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [639] [2023-12-25 05:54:02,536 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [1051] [2023-12-25 05:54:02,536 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1082] [2023-12-25 05:54:02,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1100] [2023-12-25 05:54:02,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2180] [2023-12-25 05:54:02,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2189] [2023-12-25 05:54:02,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2227] [2023-12-25 05:54:02,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2587] [2023-12-25 05:54:02,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2723] [2023-12-25 05:54:02,581 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product30.cil.c[50838,50851] [2023-12-25 05:54:02,594 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:54:02,619 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:54:02,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:54:02 WrapperNode [2023-12-25 05:54:02,619 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:54:02,620 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:54:02,620 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:54:02,620 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:54:02,626 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:54:02" (1/1) ... [2023-12-25 05:54:02,687 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:54:02" (1/1) ... [2023-12-25 05:54:02,738 INFO L138 Inliner]: procedures = 133, calls = 203, calls flagged for inlining = 60, calls inlined = 50, statements flattened = 848 [2023-12-25 05:54:02,739 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:54:02,739 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:54:02,739 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:54:02,739 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:54:02,749 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:54:02" (1/1) ... [2023-12-25 05:54:02,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:54:02" (1/1) ... [2023-12-25 05:54:02,767 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:54:02" (1/1) ... [2023-12-25 05:54:02,811 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2023-12-25 05:54:02,811 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:54:02" (1/1) ... [2023-12-25 05:54:02,811 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:54:02" (1/1) ... [2023-12-25 05:54:02,837 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:54:02" (1/1) ... [2023-12-25 05:54:02,845 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:54:02" (1/1) ... [2023-12-25 05:54:02,865 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:54:02" (1/1) ... [2023-12-25 05:54:02,870 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:54:02" (1/1) ... [2023-12-25 05:54:02,889 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:54:02,890 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:54:02,890 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:54:02,890 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:54:02,891 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:54:02" (1/1) ... [2023-12-25 05:54:02,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:54:02,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:54:02,938 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-25 05:54:02,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-25 05:54:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-25 05:54:02,972 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-25 05:54:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-25 05:54:02,972 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-25 05:54:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-25 05:54:02,972 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-25 05:54:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-25 05:54:02,973 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-25 05:54:02,973 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-25 05:54:02,974 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-25 05:54:02,975 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-25 05:54:02,976 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-25 05:54:02,976 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-25 05:54:02,976 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-25 05:54:02,976 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-25 05:54:02,976 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-25 05:54:02,976 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-25 05:54:02,976 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-25 05:54:02,976 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-25 05:54:02,976 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-25 05:54:02,976 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-25 05:54:02,976 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-25 05:54:02,976 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-25 05:54:02,977 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-25 05:54:02,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:54:02,977 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-25 05:54:02,977 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-25 05:54:02,977 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-25 05:54:02,977 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-25 05:54:02,977 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-25 05:54:02,977 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-25 05:54:02,977 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-25 05:54:02,977 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-25 05:54:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-25 05:54:02,978 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-25 05:54:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:54:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:54:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:54:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:54:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-25 05:54:02,978 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-25 05:54:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-25 05:54:02,978 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-25 05:54:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-25 05:54:02,978 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-25 05:54:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-25 05:54:02,979 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-25 05:54:02,979 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-25 05:54:02,979 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-25 05:54:02,979 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-25 05:54:02,979 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-25 05:54:02,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:54:02,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:54:03,167 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:54:03,169 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:54:04,057 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:54:04,150 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:54:04,150 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:54:04,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:54:04 BoogieIcfgContainer [2023-12-25 05:54:04,151 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:54:04,154 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:54:04,154 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:54:04,157 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:54:04,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:54:01" (1/3) ... [2023-12-25 05:54:04,159 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65df6a34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:54:04, skipping insertion in model container [2023-12-25 05:54:04,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:54:02" (2/3) ... [2023-12-25 05:54:04,159 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65df6a34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:54:04, skipping insertion in model container [2023-12-25 05:54:04,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:54:04" (3/3) ... [2023-12-25 05:54:04,161 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product30.cil.c [2023-12-25 05:54:04,180 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:54:04,181 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:54:04,245 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:54:04,251 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;@5eff04ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:54:04,251 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:54:04,260 INFO L276 IsEmpty]: Start isEmpty. Operand has 317 states, 240 states have (on average 1.575) internal successors, (378), 244 states have internal predecessors, (378), 52 states have call successors, (52), 23 states have call predecessors, (52), 23 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-25 05:54:04,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-25 05:54:04,292 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:54:04,293 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:54:04,294 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:54:04,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:54:04,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1318917803, now seen corresponding path program 1 times [2023-12-25 05:54:04,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:54:04,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2060007574] [2023-12-25 05:54:04,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:54:04,324 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:04,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:54:04,331 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:54:04,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-25 05:54:04,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:54:04,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:54:04,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:54:04,808 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-25 05:54:04,809 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:54:04,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:54:04,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2060007574] [2023-12-25 05:54:04,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2060007574] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:54:04,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:54:04,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:54:04,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677853174] [2023-12-25 05:54:04,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:54:04,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:54:04,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:54:04,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:54:04,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:54:04,861 INFO L87 Difference]: Start difference. First operand has 317 states, 240 states have (on average 1.575) internal successors, (378), 244 states have internal predecessors, (378), 52 states have call successors, (52), 23 states have call predecessors, (52), 23 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:54:04,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:54:04,981 INFO L93 Difference]: Finished difference Result 489 states and 727 transitions. [2023-12-25 05:54:04,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:54:04,984 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 114 [2023-12-25 05:54:04,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:54:05,001 INFO L225 Difference]: With dead ends: 489 [2023-12-25 05:54:05,001 INFO L226 Difference]: Without dead ends: 314 [2023-12-25 05:54:05,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:54:05,013 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:54:05,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 465 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:54:05,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-12-25 05:54:05,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2023-12-25 05:54:05,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 238 states have (on average 1.5588235294117647) internal successors, (371), 241 states have internal predecessors, (371), 52 states have call successors, (52), 23 states have call predecessors, (52), 23 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2023-12-25 05:54:05,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 474 transitions. [2023-12-25 05:54:05,071 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 474 transitions. Word has length 114 [2023-12-25 05:54:05,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:54:05,072 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 474 transitions. [2023-12-25 05:54:05,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:54:05,073 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 474 transitions. [2023-12-25 05:54:05,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-25 05:54:05,077 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:54:05,077 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:54:05,096 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 [2023-12-25 05:54:05,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:05,293 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:54:05,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:54:05,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1862219508, now seen corresponding path program 1 times [2023-12-25 05:54:05,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:54:05,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1496078377] [2023-12-25 05:54:05,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:54:05,295 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:05,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:54:05,297 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:54:05,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-25 05:54:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:54:05,602 INFO L262 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:54:05,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:54:05,673 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-25 05:54:05,674 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:54:05,674 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:54:05,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1496078377] [2023-12-25 05:54:05,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1496078377] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:54:05,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:54:05,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:54:05,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137397925] [2023-12-25 05:54:05,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:54:05,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:54:05,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:54:05,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:54:05,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:54:05,680 INFO L87 Difference]: Start difference. First operand 314 states and 474 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:54:05,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:54:05,844 INFO L93 Difference]: Finished difference Result 623 states and 942 transitions. [2023-12-25 05:54:05,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:54:05,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 115 [2023-12-25 05:54:05,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:54:05,847 INFO L225 Difference]: With dead ends: 623 [2023-12-25 05:54:05,847 INFO L226 Difference]: Without dead ends: 316 [2023-12-25 05:54:05,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:54:05,850 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 8 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1801 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:54:05,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1801 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:54:05,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-12-25 05:54:05,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2023-12-25 05:54:05,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 239 states have (on average 1.5564853556485356) internal successors, (372), 243 states have internal predecessors, (372), 52 states have call successors, (52), 23 states have call predecessors, (52), 24 states have return successors, (53), 51 states have call predecessors, (53), 51 states have call successors, (53) [2023-12-25 05:54:05,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 477 transitions. [2023-12-25 05:54:05,871 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 477 transitions. Word has length 115 [2023-12-25 05:54:05,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:54:05,871 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 477 transitions. [2023-12-25 05:54:05,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:54:05,871 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 477 transitions. [2023-12-25 05:54:05,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-25 05:54:05,873 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:54:05,874 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2023-12-25 05:54:05,887 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 [2023-12-25 05:54:06,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:06,083 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:54:06,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:54:06,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1587331849, now seen corresponding path program 1 times [2023-12-25 05:54:06,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:54:06,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1890332582] [2023-12-25 05:54:06,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:54:06,084 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:06,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:54:06,086 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:54:06,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-25 05:54:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:54:06,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:54:06,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:54:06,406 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-25 05:54:06,406 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:54:06,406 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:54:06,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1890332582] [2023-12-25 05:54:06,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1890332582] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:54:06,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:54:06,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:54:06,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548295772] [2023-12-25 05:54:06,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:54:06,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:54:06,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:54:06,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:54:06,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:54:06,409 INFO L87 Difference]: Start difference. First operand 316 states and 477 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:54:06,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:54:06,530 INFO L93 Difference]: Finished difference Result 625 states and 946 transitions. [2023-12-25 05:54:06,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:54:06,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 116 [2023-12-25 05:54:06,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:54:06,533 INFO L225 Difference]: With dead ends: 625 [2023-12-25 05:54:06,533 INFO L226 Difference]: Without dead ends: 318 [2023-12-25 05:54:06,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:54:06,536 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 8 mSDsluCounter, 1336 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:54:06,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1787 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:54:06,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2023-12-25 05:54:06,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2023-12-25 05:54:06,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 240 states have (on average 1.5541666666666667) internal successors, (373), 245 states have internal predecessors, (373), 52 states have call successors, (52), 23 states have call predecessors, (52), 25 states have return successors, (57), 51 states have call predecessors, (57), 51 states have call successors, (57) [2023-12-25 05:54:06,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 482 transitions. [2023-12-25 05:54:06,559 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 482 transitions. Word has length 116 [2023-12-25 05:54:06,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:54:06,559 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 482 transitions. [2023-12-25 05:54:06,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:54:06,559 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 482 transitions. [2023-12-25 05:54:06,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-25 05:54:06,562 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:54:06,562 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:54:06,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 05:54:06,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:06,776 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:54:06,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:54:06,777 INFO L85 PathProgramCache]: Analyzing trace with hash -815844651, now seen corresponding path program 1 times [2023-12-25 05:54:06,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:54:06,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [433160507] [2023-12-25 05:54:06,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:54:06,778 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:06,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:54:06,779 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:54:06,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-25 05:54:07,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:54:07,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:54:07,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:54:07,091 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-25 05:54:07,091 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:54:07,091 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:54:07,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [433160507] [2023-12-25 05:54:07,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [433160507] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:54:07,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:54:07,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:54:07,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561544345] [2023-12-25 05:54:07,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:54:07,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:54:07,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:54:07,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:54:07,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:54:07,097 INFO L87 Difference]: Start difference. First operand 318 states and 482 transitions. Second operand has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:54:07,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:54:07,202 INFO L93 Difference]: Finished difference Result 617 states and 936 transitions. [2023-12-25 05:54:07,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:54:07,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 117 [2023-12-25 05:54:07,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:54:07,206 INFO L225 Difference]: With dead ends: 617 [2023-12-25 05:54:07,206 INFO L226 Difference]: Without dead ends: 318 [2023-12-25 05:54:07,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:54:07,216 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 8 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1801 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:54:07,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1801 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:54:07,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2023-12-25 05:54:07,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2023-12-25 05:54:07,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 240 states have (on average 1.5541666666666667) internal successors, (373), 245 states have internal predecessors, (373), 52 states have call successors, (52), 23 states have call predecessors, (52), 25 states have return successors, (56), 51 states have call predecessors, (56), 51 states have call successors, (56) [2023-12-25 05:54:07,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 481 transitions. [2023-12-25 05:54:07,238 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 481 transitions. Word has length 117 [2023-12-25 05:54:07,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:54:07,238 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 481 transitions. [2023-12-25 05:54:07,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:54:07,239 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 481 transitions. [2023-12-25 05:54:07,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-25 05:54:07,242 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:54:07,242 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:54:07,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-25 05:54:07,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:07,451 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:54:07,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:54:07,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1631941968, now seen corresponding path program 2 times [2023-12-25 05:54:07,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:54:07,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1878596035] [2023-12-25 05:54:07,452 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 05:54:07,452 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:07,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:54:07,453 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:54:07,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-25 05:54:07,657 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 05:54:07,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 05:54:07,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:54:07,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:54:07,683 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-25 05:54:07,683 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:54:07,684 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:54:07,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1878596035] [2023-12-25 05:54:07,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1878596035] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:54:07,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:54:07,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:54:07,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911919502] [2023-12-25 05:54:07,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:54:07,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:54:07,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:54:07,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:54:07,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:54:07,687 INFO L87 Difference]: Start difference. First operand 318 states and 481 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:54:07,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:54:07,737 INFO L93 Difference]: Finished difference Result 489 states and 721 transitions. [2023-12-25 05:54:07,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:54:07,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 118 [2023-12-25 05:54:07,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:54:07,741 INFO L225 Difference]: With dead ends: 489 [2023-12-25 05:54:07,741 INFO L226 Difference]: Without dead ends: 320 [2023-12-25 05:54:07,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:54:07,742 INFO L413 NwaCegarLoop]: 462 mSDtfsCounter, 0 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:54:07,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 923 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:54:07,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2023-12-25 05:54:07,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2023-12-25 05:54:07,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 242 states have (on average 1.5495867768595042) internal successors, (375), 247 states have internal predecessors, (375), 52 states have call successors, (52), 23 states have call predecessors, (52), 25 states have return successors, (56), 51 states have call predecessors, (56), 51 states have call successors, (56) [2023-12-25 05:54:07,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 483 transitions. [2023-12-25 05:54:07,756 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 483 transitions. Word has length 118 [2023-12-25 05:54:07,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:54:07,757 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 483 transitions. [2023-12-25 05:54:07,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:54:07,757 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 483 transitions. [2023-12-25 05:54:07,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-25 05:54:07,759 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:54:07,759 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:54:07,768 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 [2023-12-25 05:54:07,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:07,966 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:54:07,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:54:07,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1492284931, now seen corresponding path program 1 times [2023-12-25 05:54:07,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:54:07,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2115730634] [2023-12-25 05:54:07,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:54:07,967 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:07,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:54:07,968 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:54:07,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-25 05:54:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:54:08,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:54:08,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:54:08,287 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-25 05:54:08,287 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:54:08,287 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:54:08,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2115730634] [2023-12-25 05:54:08,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2115730634] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:54:08,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:54:08,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:54:08,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716662106] [2023-12-25 05:54:08,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:54:08,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:54:08,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:54:08,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:54:08,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:54:08,290 INFO L87 Difference]: Start difference. First operand 320 states and 483 transitions. Second operand has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:54:08,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:54:08,406 INFO L93 Difference]: Finished difference Result 623 states and 943 transitions. [2023-12-25 05:54:08,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:54:08,407 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 125 [2023-12-25 05:54:08,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:54:08,411 INFO L225 Difference]: With dead ends: 623 [2023-12-25 05:54:08,411 INFO L226 Difference]: Without dead ends: 322 [2023-12-25 05:54:08,412 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 [2023-12-25 05:54:08,413 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 6 mSDsluCounter, 1349 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1803 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:54:08,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1803 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:54:08,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2023-12-25 05:54:08,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2023-12-25 05:54:08,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 243 states have (on average 1.5473251028806585) internal successors, (376), 249 states have internal predecessors, (376), 52 states have call successors, (52), 23 states have call predecessors, (52), 26 states have return successors, (58), 51 states have call predecessors, (58), 51 states have call successors, (58) [2023-12-25 05:54:08,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 486 transitions. [2023-12-25 05:54:08,428 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 486 transitions. Word has length 125 [2023-12-25 05:54:08,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:54:08,429 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 486 transitions. [2023-12-25 05:54:08,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:54:08,430 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 486 transitions. [2023-12-25 05:54:08,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-25 05:54:08,433 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:54:08,433 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:54:08,442 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 (7)] Forceful destruction successful, exit code 0 [2023-12-25 05:54:08,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:08,643 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:54:08,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:54:08,643 INFO L85 PathProgramCache]: Analyzing trace with hash 309188851, now seen corresponding path program 1 times [2023-12-25 05:54:08,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:54:08,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1333802763] [2023-12-25 05:54:08,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:54:08,644 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:08,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:54:08,646 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:54:08,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-25 05:54:08,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:54:08,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:54:08,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:54:08,939 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-25 05:54:08,939 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:54:08,939 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:54:08,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1333802763] [2023-12-25 05:54:08,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1333802763] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:54:08,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:54:08,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:54:08,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054761317] [2023-12-25 05:54:08,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:54:08,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:54:08,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:54:08,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:54:08,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:54:08,941 INFO L87 Difference]: Start difference. First operand 322 states and 486 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:54:09,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:54:09,056 INFO L93 Difference]: Finished difference Result 621 states and 938 transitions. [2023-12-25 05:54:09,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:54:09,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 126 [2023-12-25 05:54:09,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:54:09,060 INFO L225 Difference]: With dead ends: 621 [2023-12-25 05:54:09,060 INFO L226 Difference]: Without dead ends: 322 [2023-12-25 05:54:09,062 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 [2023-12-25 05:54:09,063 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 8 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:54:09,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1788 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:54:09,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2023-12-25 05:54:09,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2023-12-25 05:54:09,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 243 states have (on average 1.5473251028806585) internal successors, (376), 249 states have internal predecessors, (376), 52 states have call successors, (52), 23 states have call predecessors, (52), 26 states have return successors, (57), 51 states have call predecessors, (57), 51 states have call successors, (57) [2023-12-25 05:54:09,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 485 transitions. [2023-12-25 05:54:09,075 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 485 transitions. Word has length 126 [2023-12-25 05:54:09,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:54:09,076 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 485 transitions. [2023-12-25 05:54:09,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:54:09,076 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 485 transitions. [2023-12-25 05:54:09,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-25 05:54:09,078 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:54:09,079 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:54:09,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-25 05:54:09,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:09,284 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:54:09,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:54:09,285 INFO L85 PathProgramCache]: Analyzing trace with hash -674244195, now seen corresponding path program 2 times [2023-12-25 05:54:09,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:54:09,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1671367113] [2023-12-25 05:54:09,286 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 05:54:09,286 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:09,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:54:09,287 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:54:09,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-25 05:54:09,472 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 05:54:09,472 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 05:54:09,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:54:09,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:54:09,507 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-25 05:54:09,511 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:54:09,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:54:09,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1671367113] [2023-12-25 05:54:09,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1671367113] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:54:09,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:54:09,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:54:09,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981866860] [2023-12-25 05:54:09,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:54:09,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:54:09,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:54:09,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:54:09,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:54:09,513 INFO L87 Difference]: Start difference. First operand 322 states and 485 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-25 05:54:09,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:54:09,590 INFO L93 Difference]: Finished difference Result 329 states and 493 transitions. [2023-12-25 05:54:09,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:54:09,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 127 [2023-12-25 05:54:09,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:54:09,596 INFO L225 Difference]: With dead ends: 329 [2023-12-25 05:54:09,596 INFO L226 Difference]: Without dead ends: 327 [2023-12-25 05:54:09,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:54:09,598 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 1 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1834 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:54:09,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1834 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:54:09,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2023-12-25 05:54:09,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 326. [2023-12-25 05:54:09,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 246 states have (on average 1.5406504065040652) internal successors, (379), 252 states have internal predecessors, (379), 52 states have call successors, (52), 23 states have call predecessors, (52), 27 states have return successors, (59), 52 states have call predecessors, (59), 51 states have call successors, (59) [2023-12-25 05:54:09,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 490 transitions. [2023-12-25 05:54:09,612 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 490 transitions. Word has length 127 [2023-12-25 05:54:09,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:54:09,612 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 490 transitions. [2023-12-25 05:54:09,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-25 05:54:09,613 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 490 transitions. [2023-12-25 05:54:09,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-25 05:54:09,614 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:54:09,615 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:54:09,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-25 05:54:09,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:09,821 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:54:09,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:54:09,822 INFO L85 PathProgramCache]: Analyzing trace with hash 2075343593, now seen corresponding path program 1 times [2023-12-25 05:54:09,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:54:09,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [548827258] [2023-12-25 05:54:09,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:54:09,822 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:09,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:54:09,823 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:54:09,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-25 05:54:10,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:54:10,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:54:10,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:54:10,088 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-25 05:54:10,088 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:54:10,088 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:54:10,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [548827258] [2023-12-25 05:54:10,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [548827258] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:54:10,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:54:10,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:54:10,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776517720] [2023-12-25 05:54:10,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:54:10,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:54:10,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:54:10,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:54:10,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:54:10,091 INFO L87 Difference]: Start difference. First operand 326 states and 490 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:54:10,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:54:10,244 INFO L93 Difference]: Finished difference Result 631 states and 953 transitions. [2023-12-25 05:54:10,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:54:10,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 127 [2023-12-25 05:54:10,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:54:10,251 INFO L225 Difference]: With dead ends: 631 [2023-12-25 05:54:10,251 INFO L226 Difference]: Without dead ends: 328 [2023-12-25 05:54:10,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:54:10,252 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 6 mSDsluCounter, 1338 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:54:10,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1790 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:54:10,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2023-12-25 05:54:10,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2023-12-25 05:54:10,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 247 states have (on average 1.5384615384615385) internal successors, (380), 254 states have internal predecessors, (380), 52 states have call successors, (52), 23 states have call predecessors, (52), 28 states have return successors, (63), 52 states have call predecessors, (63), 51 states have call successors, (63) [2023-12-25 05:54:10,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 495 transitions. [2023-12-25 05:54:10,265 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 495 transitions. Word has length 127 [2023-12-25 05:54:10,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:54:10,265 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 495 transitions. [2023-12-25 05:54:10,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:54:10,266 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 495 transitions. [2023-12-25 05:54:10,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 05:54:10,268 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:54:10,268 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:54:10,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-25 05:54:10,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:10,477 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:54:10,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:54:10,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1314439642, now seen corresponding path program 1 times [2023-12-25 05:54:10,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:54:10,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [853052586] [2023-12-25 05:54:10,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:54:10,478 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:10,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:54:10,479 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:54:10,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-25 05:54:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:54:10,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:54:10,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:54:10,730 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:54:10,730 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:54:10,731 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:54:10,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [853052586] [2023-12-25 05:54:10,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [853052586] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:54:10,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:54:10,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:54:10,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159116671] [2023-12-25 05:54:10,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:54:10,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:54:10,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:54:10,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:54:10,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:54:10,735 INFO L87 Difference]: Start difference. First operand 328 states and 495 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:54:10,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:54:10,792 INFO L93 Difference]: Finished difference Result 682 states and 1043 transitions. [2023-12-25 05:54:10,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:54:10,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 128 [2023-12-25 05:54:10,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:54:10,795 INFO L225 Difference]: With dead ends: 682 [2023-12-25 05:54:10,795 INFO L226 Difference]: Without dead ends: 380 [2023-12-25 05:54:10,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:54:10,797 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 102 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:54:10,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 886 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:54:10,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2023-12-25 05:54:10,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 375. [2023-12-25 05:54:10,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 283 states have (on average 1.5547703180212014) internal successors, (440), 290 states have internal predecessors, (440), 63 states have call successors, (63), 23 states have call predecessors, (63), 28 states have return successors, (76), 63 states have call predecessors, (76), 62 states have call successors, (76) [2023-12-25 05:54:10,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 579 transitions. [2023-12-25 05:54:10,816 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 579 transitions. Word has length 128 [2023-12-25 05:54:10,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:54:10,816 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 579 transitions. [2023-12-25 05:54:10,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:54:10,817 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 579 transitions. [2023-12-25 05:54:10,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 05:54:10,819 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:54:10,819 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:54:10,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-25 05:54:11,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:11,027 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:54:11,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:54:11,028 INFO L85 PathProgramCache]: Analyzing trace with hash 578239523, now seen corresponding path program 1 times [2023-12-25 05:54:11,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:54:11,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1078935374] [2023-12-25 05:54:11,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:54:11,028 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:11,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:54:11,029 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:54:11,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-25 05:54:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:54:11,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:54:11,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:54:11,349 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-25 05:54:11,350 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:54:11,350 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:54:11,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1078935374] [2023-12-25 05:54:11,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1078935374] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:54:11,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:54:11,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:54:11,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587483857] [2023-12-25 05:54:11,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:54:11,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:54:11,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:54:11,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:54:11,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:54:11,352 INFO L87 Difference]: Start difference. First operand 375 states and 579 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:54:11,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:54:11,449 INFO L93 Difference]: Finished difference Result 742 states and 1136 transitions. [2023-12-25 05:54:11,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:54:11,450 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 129 [2023-12-25 05:54:11,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:54:11,452 INFO L225 Difference]: With dead ends: 742 [2023-12-25 05:54:11,452 INFO L226 Difference]: Without dead ends: 391 [2023-12-25 05:54:11,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:54:11,454 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 435 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:54:11,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 946 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:54:11,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2023-12-25 05:54:11,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 383. [2023-12-25 05:54:11,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 290 states have (on average 1.5379310344827586) internal successors, (446), 296 states have internal predecessors, (446), 63 states have call successors, (63), 25 states have call predecessors, (63), 29 states have return successors, (72), 63 states have call predecessors, (72), 62 states have call successors, (72) [2023-12-25 05:54:11,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 581 transitions. [2023-12-25 05:54:11,474 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 581 transitions. Word has length 129 [2023-12-25 05:54:11,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:54:11,474 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 581 transitions. [2023-12-25 05:54:11,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:54:11,475 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 581 transitions. [2023-12-25 05:54:11,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-25 05:54:11,477 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:54:11,477 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:54:11,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-25 05:54:11,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:11,686 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:54:11,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:54:11,687 INFO L85 PathProgramCache]: Analyzing trace with hash -2085153885, now seen corresponding path program 1 times [2023-12-25 05:54:11,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:54:11,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [841434348] [2023-12-25 05:54:11,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:54:11,688 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:11,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:54:11,689 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:54:11,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-25 05:54:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:54:11,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:54:11,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:54:11,950 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:54:11,950 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:54:12,029 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:54:12,029 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:54:12,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [841434348] [2023-12-25 05:54:12,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [841434348] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:54:12,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:54:12,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-25 05:54:12,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836149196] [2023-12-25 05:54:12,030 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:54:12,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:54:12,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:54:12,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:54:12,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:54:12,031 INFO L87 Difference]: Start difference. First operand 383 states and 581 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-25 05:54:12,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:54:12,315 INFO L93 Difference]: Finished difference Result 881 states and 1390 transitions. [2023-12-25 05:54:12,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:54:12,316 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 130 [2023-12-25 05:54:12,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:54:12,320 INFO L225 Difference]: With dead ends: 881 [2023-12-25 05:54:12,320 INFO L226 Difference]: Without dead ends: 708 [2023-12-25 05:54:12,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:54:12,322 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 539 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:54:12,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 1602 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:54:12,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2023-12-25 05:54:12,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 693. [2023-12-25 05:54:12,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 536 states have (on average 1.587686567164179) internal successors, (851), 542 states have internal predecessors, (851), 127 states have call successors, (127), 25 states have call predecessors, (127), 29 states have return successors, (146), 127 states have call predecessors, (146), 126 states have call successors, (146) [2023-12-25 05:54:12,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1124 transitions. [2023-12-25 05:54:12,360 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1124 transitions. Word has length 130 [2023-12-25 05:54:12,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:54:12,360 INFO L495 AbstractCegarLoop]: Abstraction has 693 states and 1124 transitions. [2023-12-25 05:54:12,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-25 05:54:12,360 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1124 transitions. [2023-12-25 05:54:12,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-25 05:54:12,365 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:54:12,365 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:54:12,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-25 05:54:12,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:12,574 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:54:12,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:54:12,574 INFO L85 PathProgramCache]: Analyzing trace with hash 2105523409, now seen corresponding path program 1 times [2023-12-25 05:54:12,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:54:12,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [743199729] [2023-12-25 05:54:12,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:54:12,575 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:12,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:54:12,576 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:54:12,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-25 05:54:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:54:12,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:54:12,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:54:12,837 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:54:12,837 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:54:12,838 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:54:12,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [743199729] [2023-12-25 05:54:12,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [743199729] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:54:12,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:54:12,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:54:12,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245556145] [2023-12-25 05:54:12,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:54:12,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:54:12,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:54:12,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:54:12,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:54:12,840 INFO L87 Difference]: Start difference. First operand 693 states and 1124 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:54:12,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:54:12,920 INFO L93 Difference]: Finished difference Result 1607 states and 2661 transitions. [2023-12-25 05:54:12,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:54:12,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 133 [2023-12-25 05:54:12,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:54:12,926 INFO L225 Difference]: With dead ends: 1607 [2023-12-25 05:54:12,926 INFO L226 Difference]: Without dead ends: 990 [2023-12-25 05:54:12,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:54:12,931 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 96 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:54:12,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 919 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:54:12,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2023-12-25 05:54:12,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 985. [2023-12-25 05:54:12,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 764 states have (on average 1.6073298429319371) internal successors, (1228), 770 states have internal predecessors, (1228), 191 states have call successors, (191), 25 states have call predecessors, (191), 29 states have return successors, (220), 191 states have call predecessors, (220), 190 states have call successors, (220) [2023-12-25 05:54:12,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1639 transitions. [2023-12-25 05:54:12,976 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1639 transitions. Word has length 133 [2023-12-25 05:54:12,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:54:12,976 INFO L495 AbstractCegarLoop]: Abstraction has 985 states and 1639 transitions. [2023-12-25 05:54:12,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:54:12,976 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1639 transitions. [2023-12-25 05:54:12,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-25 05:54:12,983 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:54:12,983 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:54:12,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-25 05:54:13,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:13,192 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:54:13,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:54:13,193 INFO L85 PathProgramCache]: Analyzing trace with hash 118827691, now seen corresponding path program 1 times [2023-12-25 05:54:13,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:54:13,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1823929806] [2023-12-25 05:54:13,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:54:13,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:13,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:54:13,195 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:54:13,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-25 05:54:13,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:54:13,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:54:13,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:54:13,468 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:54:13,469 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:54:13,469 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:54:13,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1823929806] [2023-12-25 05:54:13,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1823929806] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:54:13,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:54:13,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:54:13,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20281880] [2023-12-25 05:54:13,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:54:13,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:54:13,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:54:13,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:54:13,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:54:13,471 INFO L87 Difference]: Start difference. First operand 985 states and 1639 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:54:13,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:54:13,570 INFO L93 Difference]: Finished difference Result 2319 states and 3887 transitions. [2023-12-25 05:54:13,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:54:13,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 134 [2023-12-25 05:54:13,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:54:13,580 INFO L225 Difference]: With dead ends: 2319 [2023-12-25 05:54:13,580 INFO L226 Difference]: Without dead ends: 1460 [2023-12-25 05:54:13,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:54:13,585 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 94 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:54:13,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 913 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:54:13,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1460 states. [2023-12-25 05:54:13,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 1455. [2023-12-25 05:54:13,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1139 states have (on average 1.6128182616330113) internal successors, (1837), 1145 states have internal predecessors, (1837), 286 states have call successors, (286), 25 states have call predecessors, (286), 29 states have return successors, (315), 286 states have call predecessors, (315), 285 states have call successors, (315) [2023-12-25 05:54:13,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 2438 transitions. [2023-12-25 05:54:13,678 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 2438 transitions. Word has length 134 [2023-12-25 05:54:13,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:54:13,678 INFO L495 AbstractCegarLoop]: Abstraction has 1455 states and 2438 transitions. [2023-12-25 05:54:13,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:54:13,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 2438 transitions. [2023-12-25 05:54:13,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 05:54:13,687 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:54:13,688 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:54:13,696 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-25 05:54:13,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:13,895 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:54:13,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:54:13,896 INFO L85 PathProgramCache]: Analyzing trace with hash 2101978335, now seen corresponding path program 1 times [2023-12-25 05:54:13,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:54:13,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1712092910] [2023-12-25 05:54:13,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:54:13,897 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:13,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:54:13,898 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:54:13,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-25 05:54:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:54:14,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:54:14,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:54:14,181 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:54:14,181 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:54:14,181 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:54:14,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1712092910] [2023-12-25 05:54:14,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1712092910] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:54:14,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:54:14,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:54:14,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690561845] [2023-12-25 05:54:14,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:54:14,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:54:14,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:54:14,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:54:14,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:54:14,183 INFO L87 Difference]: Start difference. First operand 1455 states and 2438 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:54:14,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:54:14,294 INFO L93 Difference]: Finished difference Result 3370 states and 5698 transitions. [2023-12-25 05:54:14,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:54:14,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 135 [2023-12-25 05:54:14,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:54:14,312 INFO L225 Difference]: With dead ends: 3370 [2023-12-25 05:54:14,313 INFO L226 Difference]: Without dead ends: 2167 [2023-12-25 05:54:14,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:54:14,321 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 92 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:54:14,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 906 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:54:14,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2167 states. [2023-12-25 05:54:14,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2167 to 2162. [2023-12-25 05:54:14,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2162 states, 1723 states have (on average 1.6175275681950088) internal successors, (2787), 1729 states have internal predecessors, (2787), 409 states have call successors, (409), 25 states have call predecessors, (409), 29 states have return successors, (454), 409 states have call predecessors, (454), 408 states have call successors, (454) [2023-12-25 05:54:14,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2162 states to 2162 states and 3650 transitions. [2023-12-25 05:54:14,485 INFO L78 Accepts]: Start accepts. Automaton has 2162 states and 3650 transitions. Word has length 135 [2023-12-25 05:54:14,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:54:14,486 INFO L495 AbstractCegarLoop]: Abstraction has 2162 states and 3650 transitions. [2023-12-25 05:54:14,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:54:14,487 INFO L276 IsEmpty]: Start isEmpty. Operand 2162 states and 3650 transitions. [2023-12-25 05:54:14,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-25 05:54:14,500 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:54:14,500 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:54:14,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-25 05:54:14,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:14,709 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:54:14,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:54:14,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1235931892, now seen corresponding path program 1 times [2023-12-25 05:54:14,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:54:14,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [286737890] [2023-12-25 05:54:14,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:54:14,710 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:14,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:54:14,711 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:54:14,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-25 05:54:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:54:14,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:54:14,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:54:14,967 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:54:14,968 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:54:14,968 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:54:14,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [286737890] [2023-12-25 05:54:14,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [286737890] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:54:14,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:54:14,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:54:14,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421057936] [2023-12-25 05:54:14,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:54:14,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:54:14,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:54:14,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:54:14,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:54:14,970 INFO L87 Difference]: Start difference. First operand 2162 states and 3650 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:54:15,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:54:15,125 INFO L93 Difference]: Finished difference Result 4994 states and 8500 transitions. [2023-12-25 05:54:15,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:54:15,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 136 [2023-12-25 05:54:15,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:54:15,146 INFO L225 Difference]: With dead ends: 4994 [2023-12-25 05:54:15,146 INFO L226 Difference]: Without dead ends: 3290 [2023-12-25 05:54:15,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:54:15,155 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 90 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:54:15,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 909 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:54:15,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3290 states. [2023-12-25 05:54:15,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3290 to 3285. [2023-12-25 05:54:15,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3285 states, 2667 states have (on average 1.6205474315710535) internal successors, (4322), 2673 states have internal predecessors, (4322), 588 states have call successors, (588), 25 states have call predecessors, (588), 29 states have return successors, (659), 588 states have call predecessors, (659), 587 states have call successors, (659) [2023-12-25 05:54:15,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3285 states to 3285 states and 5569 transitions. [2023-12-25 05:54:15,366 INFO L78 Accepts]: Start accepts. Automaton has 3285 states and 5569 transitions. Word has length 136 [2023-12-25 05:54:15,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:54:15,366 INFO L495 AbstractCegarLoop]: Abstraction has 3285 states and 5569 transitions. [2023-12-25 05:54:15,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:54:15,367 INFO L276 IsEmpty]: Start isEmpty. Operand 3285 states and 5569 transitions. [2023-12-25 05:54:15,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-25 05:54:15,385 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:54:15,386 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:54:15,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-25 05:54:15,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:15,595 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:54:15,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:54:15,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1761572453, now seen corresponding path program 1 times [2023-12-25 05:54:15,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:54:15,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091740548] [2023-12-25 05:54:15,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:54:15,596 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:15,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:54:15,597 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:54:15,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-25 05:54:15,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:54:15,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:54:15,848 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:54:15,870 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:54:15,870 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:54:15,870 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:54:15,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2091740548] [2023-12-25 05:54:15,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2091740548] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:54:15,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:54:15,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:54:15,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954691204] [2023-12-25 05:54:15,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:54:15,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:54:15,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:54:15,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:54:15,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:54:15,873 INFO L87 Difference]: Start difference. First operand 3285 states and 5569 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:54:16,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:54:16,101 INFO L93 Difference]: Finished difference Result 7918 states and 13505 transitions. [2023-12-25 05:54:16,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:54:16,102 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 137 [2023-12-25 05:54:16,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:54:16,134 INFO L225 Difference]: With dead ends: 7918 [2023-12-25 05:54:16,134 INFO L226 Difference]: Without dead ends: 5326 [2023-12-25 05:54:16,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:54:16,147 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 88 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:54:16,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 923 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:54:16,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5326 states. [2023-12-25 05:54:16,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5326 to 5321. [2023-12-25 05:54:16,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5321 states, 4327 states have (on average 1.6128957707418534) internal successors, (6979), 4333 states have internal predecessors, (6979), 964 states have call successors, (964), 25 states have call predecessors, (964), 29 states have return successors, (1079), 964 states have call predecessors, (1079), 963 states have call successors, (1079) [2023-12-25 05:54:16,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5321 states to 5321 states and 9022 transitions. [2023-12-25 05:54:16,488 INFO L78 Accepts]: Start accepts. Automaton has 5321 states and 9022 transitions. Word has length 137 [2023-12-25 05:54:16,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:54:16,489 INFO L495 AbstractCegarLoop]: Abstraction has 5321 states and 9022 transitions. [2023-12-25 05:54:16,489 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:54:16,490 INFO L276 IsEmpty]: Start isEmpty. Operand 5321 states and 9022 transitions. [2023-12-25 05:54:16,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-25 05:54:16,519 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:54:16,519 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:54:16,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-25 05:54:16,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:16,728 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:54:16,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:54:16,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1712026544, now seen corresponding path program 1 times [2023-12-25 05:54:16,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:54:16,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740780731] [2023-12-25 05:54:16,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:54:16,729 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:16,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:54:16,730 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:54:16,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-25 05:54:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:54:16,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:54:16,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:54:16,994 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:54:16,994 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:54:17,018 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:54:17,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740780731] [2023-12-25 05:54:17,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1740780731] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:54:17,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:54:17,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:54:17,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527565530] [2023-12-25 05:54:17,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:54:17,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:54:17,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:54:17,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:54:17,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:54:17,023 INFO L87 Difference]: Start difference. First operand 5321 states and 9022 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:54:17,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:54:17,419 INFO L93 Difference]: Finished difference Result 13067 states and 22310 transitions. [2023-12-25 05:54:17,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:54:17,419 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 138 [2023-12-25 05:54:17,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:54:17,481 INFO L225 Difference]: With dead ends: 13067 [2023-12-25 05:54:17,481 INFO L226 Difference]: Without dead ends: 8820 [2023-12-25 05:54:17,499 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 [2023-12-25 05:54:17,500 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 86 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:54:17,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 909 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:54:17,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8820 states. [2023-12-25 05:54:17,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8820 to 8815. [2023-12-25 05:54:17,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8815 states, 7215 states have (on average 1.6103950103950104) internal successors, (11619), 7221 states have internal predecessors, (11619), 1570 states have call successors, (1570), 25 states have call predecessors, (1570), 29 states have return successors, (1763), 1570 states have call predecessors, (1763), 1569 states have call successors, (1763) [2023-12-25 05:54:18,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8815 states to 8815 states and 14952 transitions. [2023-12-25 05:54:18,061 INFO L78 Accepts]: Start accepts. Automaton has 8815 states and 14952 transitions. Word has length 138 [2023-12-25 05:54:18,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:54:18,061 INFO L495 AbstractCegarLoop]: Abstraction has 8815 states and 14952 transitions. [2023-12-25 05:54:18,062 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:54:18,062 INFO L276 IsEmpty]: Start isEmpty. Operand 8815 states and 14952 transitions. [2023-12-25 05:54:18,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-25 05:54:18,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:54:18,102 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:54:18,111 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 [2023-12-25 05:54:18,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:18,311 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:54:18,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:54:18,311 INFO L85 PathProgramCache]: Analyzing trace with hash -192718435, now seen corresponding path program 1 times [2023-12-25 05:54:18,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:54:18,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1530821429] [2023-12-25 05:54:18,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:54:18,312 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:18,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:54:18,314 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:54:18,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-25 05:54:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:54:18,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:54:18,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:54:18,583 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:54:18,584 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:54:18,584 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:54:18,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1530821429] [2023-12-25 05:54:18,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1530821429] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:54:18,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:54:18,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:54:18,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164320535] [2023-12-25 05:54:18,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:54:18,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:54:18,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:54:18,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:54:18,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:54:18,589 INFO L87 Difference]: Start difference. First operand 8815 states and 14952 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:54:19,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:54:19,283 INFO L93 Difference]: Finished difference Result 22734 states and 38743 transitions. [2023-12-25 05:54:19,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:54:19,284 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 139 [2023-12-25 05:54:19,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:54:19,354 INFO L225 Difference]: With dead ends: 22734 [2023-12-25 05:54:19,354 INFO L226 Difference]: Without dead ends: 15420 [2023-12-25 05:54:19,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:54:19,385 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 84 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:54:19,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 920 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:54:19,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15420 states. [2023-12-25 05:54:20,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15420 to 15415. [2023-12-25 05:54:20,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15415 states, 12612 states have (on average 1.6010149064383128) internal successors, (20192), 12618 states have internal predecessors, (20192), 2773 states have call successors, (2773), 25 states have call predecessors, (2773), 29 states have return successors, (3110), 2773 states have call predecessors, (3110), 2772 states have call successors, (3110) [2023-12-25 05:54:20,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15415 states to 15415 states and 26075 transitions. [2023-12-25 05:54:20,332 INFO L78 Accepts]: Start accepts. Automaton has 15415 states and 26075 transitions. Word has length 139 [2023-12-25 05:54:20,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:54:20,333 INFO L495 AbstractCegarLoop]: Abstraction has 15415 states and 26075 transitions. [2023-12-25 05:54:20,333 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:54:20,333 INFO L276 IsEmpty]: Start isEmpty. Operand 15415 states and 26075 transitions. [2023-12-25 05:54:20,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-25 05:54:20,383 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:54:20,383 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:54:20,395 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 [2023-12-25 05:54:20,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:20,591 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:54:20,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:54:20,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1926100399, now seen corresponding path program 1 times [2023-12-25 05:54:20,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:54:20,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1053959545] [2023-12-25 05:54:20,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:54:20,592 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:20,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:54:20,593 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:54:20,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-25 05:54:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:54:20,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:54:20,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:54:20,854 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:54:20,855 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:54:20,855 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:54:20,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1053959545] [2023-12-25 05:54:20,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1053959545] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:54:20,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:54:20,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:54:20,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27142684] [2023-12-25 05:54:20,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:54:20,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:54:20,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:54:20,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:54:20,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:54:20,857 INFO L87 Difference]: Start difference. First operand 15415 states and 26075 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:54:21,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:54:21,898 INFO L93 Difference]: Finished difference Result 40699 states and 69195 transitions. [2023-12-25 05:54:21,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:54:21,898 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 140 [2023-12-25 05:54:21,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:54:22,044 INFO L225 Difference]: With dead ends: 40699 [2023-12-25 05:54:22,044 INFO L226 Difference]: Without dead ends: 27398 [2023-12-25 05:54:22,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:54:22,092 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 82 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:54:22,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 909 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:54:22,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27398 states. [2023-12-25 05:54:23,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27398 to 27393. [2023-12-25 05:54:23,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27393 states, 22551 states have (on average 1.5967362866391734) internal successors, (36008), 22557 states have internal predecessors, (36008), 4812 states have call successors, (4812), 25 states have call predecessors, (4812), 29 states have return successors, (5423), 4812 states have call predecessors, (5423), 4811 states have call successors, (5423) [2023-12-25 05:54:23,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27393 states to 27393 states and 46243 transitions. [2023-12-25 05:54:23,723 INFO L78 Accepts]: Start accepts. Automaton has 27393 states and 46243 transitions. Word has length 140 [2023-12-25 05:54:23,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:54:23,724 INFO L495 AbstractCegarLoop]: Abstraction has 27393 states and 46243 transitions. [2023-12-25 05:54:23,724 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:54:23,724 INFO L276 IsEmpty]: Start isEmpty. Operand 27393 states and 46243 transitions. [2023-12-25 05:54:23,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-25 05:54:23,785 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:54:23,785 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:54:23,801 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 [2023-12-25 05:54:23,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:23,997 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:54:23,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:54:23,997 INFO L85 PathProgramCache]: Analyzing trace with hash -519120385, now seen corresponding path program 1 times [2023-12-25 05:54:23,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:54:23,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [500193368] [2023-12-25 05:54:23,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:54:23,998 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:23,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:54:24,000 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:54:24,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-25 05:54:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:54:24,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:54:24,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:54:24,309 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:54:24,310 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:54:24,310 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:54:24,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [500193368] [2023-12-25 05:54:24,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [500193368] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:54:24,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:54:24,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:54:24,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284712095] [2023-12-25 05:54:24,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:54:24,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:54:24,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:54:24,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:54:24,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:54:24,312 INFO L87 Difference]: Start difference. First operand 27393 states and 46243 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:54:26,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:54:26,256 INFO L93 Difference]: Finished difference Result 74496 states and 126272 transitions. [2023-12-25 05:54:26,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:54:26,256 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 141 [2023-12-25 05:54:26,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:54:26,519 INFO L225 Difference]: With dead ends: 74496 [2023-12-25 05:54:26,519 INFO L226 Difference]: Without dead ends: 49956 [2023-12-25 05:54:26,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:54:26,594 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 80 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:54:26,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 916 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:54:26,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49956 states. [2023-12-25 05:54:29,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49956 to 49951. [2023-12-25 05:54:29,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49951 states, 41394 states have (on average 1.5910035270812195) internal successors, (65858), 41400 states have internal predecessors, (65858), 8527 states have call successors, (8527), 25 states have call predecessors, (8527), 29 states have return successors, (9670), 8527 states have call predecessors, (9670), 8526 states have call successors, (9670) [2023-12-25 05:54:29,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49951 states to 49951 states and 84055 transitions. [2023-12-25 05:54:29,826 INFO L78 Accepts]: Start accepts. Automaton has 49951 states and 84055 transitions. Word has length 141 [2023-12-25 05:54:29,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:54:29,827 INFO L495 AbstractCegarLoop]: Abstraction has 49951 states and 84055 transitions. [2023-12-25 05:54:29,827 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:54:29,827 INFO L276 IsEmpty]: Start isEmpty. Operand 49951 states and 84055 transitions. [2023-12-25 05:54:29,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-25 05:54:29,902 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:54:29,902 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:54:29,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-25 05:54:30,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:30,111 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:54:30,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:54:30,112 INFO L85 PathProgramCache]: Analyzing trace with hash -50162063, now seen corresponding path program 1 times [2023-12-25 05:54:30,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:54:30,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [602960972] [2023-12-25 05:54:30,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:54:30,113 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:30,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:54:30,114 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:54:30,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-25 05:54:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:54:30,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:54:30,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:54:30,414 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:54:30,414 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:54:30,415 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:54:30,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [602960972] [2023-12-25 05:54:30,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [602960972] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:54:30,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:54:30,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:54:30,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029609257] [2023-12-25 05:54:30,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:54:30,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:54:30,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:54:30,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:54:30,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:54:30,417 INFO L87 Difference]: Start difference. First operand 49951 states and 84055 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:54:33,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:54:33,700 INFO L93 Difference]: Finished difference Result 92986 states and 156838 transitions. [2023-12-25 05:54:33,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:54:33,703 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 142 [2023-12-25 05:54:33,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:54:34,256 INFO L225 Difference]: With dead ends: 92986 [2023-12-25 05:54:34,257 INFO L226 Difference]: Without dead ends: 92813 [2023-12-25 05:54:34,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:54:34,315 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 78 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:54:34,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 912 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 05:54:34,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92813 states. [2023-12-25 05:54:38,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92813 to 92808. [2023-12-25 05:54:38,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92808 states, 77452 states have (on average 1.5836518101533854) internal successors, (122657), 77458 states have internal predecessors, (122657), 15326 states have call successors, (15326), 25 states have call predecessors, (15326), 29 states have return successors, (17515), 15326 states have call predecessors, (17515), 15325 states have call successors, (17515) [2023-12-25 05:54:38,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92808 states to 92808 states and 155498 transitions. [2023-12-25 05:54:38,888 INFO L78 Accepts]: Start accepts. Automaton has 92808 states and 155498 transitions. Word has length 142 [2023-12-25 05:54:38,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:54:38,888 INFO L495 AbstractCegarLoop]: Abstraction has 92808 states and 155498 transitions. [2023-12-25 05:54:38,889 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:54:38,889 INFO L276 IsEmpty]: Start isEmpty. Operand 92808 states and 155498 transitions. [2023-12-25 05:54:38,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-25 05:54:38,989 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:54:38,989 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:54:39,000 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-25 05:54:39,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:39,197 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:54:39,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:54:39,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1309354114, now seen corresponding path program 1 times [2023-12-25 05:54:39,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:54:39,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [574315432] [2023-12-25 05:54:39,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:54:39,199 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:39,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:54:39,200 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:54:39,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-25 05:54:39,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:54:39,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 05:54:39,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:54:39,589 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:54:39,589 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:54:39,902 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-25 05:54:39,902 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:54:39,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [574315432] [2023-12-25 05:54:39,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [574315432] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:54:39,902 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:54:39,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-25 05:54:39,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954074030] [2023-12-25 05:54:39,903 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:54:39,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 05:54:39,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:54:39,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 05:54:39,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:54:39,905 INFO L87 Difference]: Start difference. First operand 92808 states and 155498 transitions. Second operand has 16 states, 16 states have (on average 10.8125) internal successors, (173), 14 states have internal predecessors, (173), 4 states have call successors, (34), 6 states have call predecessors, (34), 9 states have return successors, (31), 6 states have call predecessors, (31), 4 states have call successors, (31) [2023-12-25 05:54:52,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:54:52,777 INFO L93 Difference]: Finished difference Result 272955 states and 464001 transitions. [2023-12-25 05:54:52,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:54:52,778 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.8125) internal successors, (173), 14 states have internal predecessors, (173), 4 states have call successors, (34), 6 states have call predecessors, (34), 9 states have return successors, (31), 6 states have call predecessors, (31), 4 states have call successors, (31) Word has length 143 [2023-12-25 05:54:52,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:54:54,553 INFO L225 Difference]: With dead ends: 272955 [2023-12-25 05:54:54,553 INFO L226 Difference]: Without dead ends: 272789 [2023-12-25 05:54:54,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2023-12-25 05:54:54,691 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 1601 mSDsluCounter, 2345 mSDsCounter, 0 mSdLazyCounter, 4572 mSolverCounterSat, 386 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1659 SdHoareTripleChecker+Valid, 2610 SdHoareTripleChecker+Invalid, 4958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 386 IncrementalHoareTripleChecker+Valid, 4572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:54:54,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1659 Valid, 2610 Invalid, 4958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [386 Valid, 4572 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-25 05:54:54,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272789 states. [2023-12-25 05:55:06,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272789 to 185609. [2023-12-25 05:55:06,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185609 states, 154899 states have (on average 1.5836512824485633) internal successors, (245306), 154910 states have internal predecessors, (245306), 30650 states have call successors, (30650), 49 states have call predecessors, (30650), 59 states have return successors, (39398), 30653 states have call predecessors, (39398), 30648 states have call successors, (39398) [2023-12-25 05:55:07,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185609 states to 185609 states and 315354 transitions. [2023-12-25 05:55:07,639 INFO L78 Accepts]: Start accepts. Automaton has 185609 states and 315354 transitions. Word has length 143 [2023-12-25 05:55:07,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:55:07,640 INFO L495 AbstractCegarLoop]: Abstraction has 185609 states and 315354 transitions. [2023-12-25 05:55:07,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.8125) internal successors, (173), 14 states have internal predecessors, (173), 4 states have call successors, (34), 6 states have call predecessors, (34), 9 states have return successors, (31), 6 states have call predecessors, (31), 4 states have call successors, (31) [2023-12-25 05:55:07,640 INFO L276 IsEmpty]: Start isEmpty. Operand 185609 states and 315354 transitions. [2023-12-25 05:55:07,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-25 05:55:07,844 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:55:07,844 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:55:07,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-25 05:55:08,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:55:08,045 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:55:08,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:55:08,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1753231386, now seen corresponding path program 1 times [2023-12-25 05:55:08,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:55:08,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [759394726] [2023-12-25 05:55:08,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:55:08,047 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:55:08,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:55:08,049 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:55:08,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-25 05:55:08,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:55:08,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:55:08,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:55:08,400 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-25 05:55:08,400 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:55:08,400 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:55:08,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [759394726] [2023-12-25 05:55:08,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [759394726] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:55:08,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:55:08,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:55:08,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121118252] [2023-12-25 05:55:08,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:55:08,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:55:08,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:55:08,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:55:08,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:55:08,403 INFO L87 Difference]: Start difference. First operand 185609 states and 315354 transitions. Second operand has 9 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-25 05:55:16,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:55:16,052 INFO L93 Difference]: Finished difference Result 186103 states and 316079 transitions. [2023-12-25 05:55:16,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:55:16,052 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 144 [2023-12-25 05:55:16,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:55:17,069 INFO L225 Difference]: With dead ends: 186103 [2023-12-25 05:55:17,069 INFO L226 Difference]: Without dead ends: 185701 [2023-12-25 05:55:17,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2023-12-25 05:55:17,157 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 605 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 2909 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:55:17,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 2909 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 05:55:17,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185701 states. [2023-12-25 05:55:27,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185701 to 185697. [2023-12-25 05:55:27,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185697 states, 154958 states have (on average 1.5835774855122033) internal successors, (245388), 154973 states have internal predecessors, (245388), 30678 states have call successors, (30678), 51 states have call predecessors, (30678), 60 states have return successors, (39430), 30680 states have call predecessors, (39430), 30676 states have call successors, (39430) [2023-12-25 05:55:28,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185697 states to 185697 states and 315496 transitions. [2023-12-25 05:55:28,584 INFO L78 Accepts]: Start accepts. Automaton has 185697 states and 315496 transitions. Word has length 144 [2023-12-25 05:55:28,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:55:28,584 INFO L495 AbstractCegarLoop]: Abstraction has 185697 states and 315496 transitions. [2023-12-25 05:55:28,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-25 05:55:28,584 INFO L276 IsEmpty]: Start isEmpty. Operand 185697 states and 315496 transitions. [2023-12-25 05:55:28,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-25 05:55:28,778 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:55:28,778 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2023-12-25 05:55:28,785 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 [2023-12-25 05:55:28,979 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 [2023-12-25 05:55:28,980 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:55:28,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:55:28,981 INFO L85 PathProgramCache]: Analyzing trace with hash -248520304, now seen corresponding path program 1 times [2023-12-25 05:55:28,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:55:28,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [271988733] [2023-12-25 05:55:28,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:55:28,982 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:55:28,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:55:28,983 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:55:28,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-25 05:55:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:55:29,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:55:29,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:55:29,240 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-25 05:55:29,240 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:55:29,240 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:55:29,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [271988733] [2023-12-25 05:55:29,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [271988733] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:55:29,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:55:29,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:55:29,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434447825] [2023-12-25 05:55:29,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:55:29,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:55:29,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:55:29,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:55:29,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:55:29,243 INFO L87 Difference]: Start difference. First operand 185697 states and 315496 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:55:37,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:55:37,876 INFO L93 Difference]: Finished difference Result 276073 states and 469131 transitions. [2023-12-25 05:55:37,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:55:37,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 144 [2023-12-25 05:55:37,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:55:38,941 INFO L225 Difference]: With dead ends: 276073 [2023-12-25 05:55:38,941 INFO L226 Difference]: Without dead ends: 183224 [2023-12-25 05:55:39,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:55:39,182 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 10 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1773 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:55:39,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1773 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:55:39,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183224 states. [2023-12-25 05:55:48,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183224 to 183222. [2023-12-25 05:55:48,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183222 states, 152936 states have (on average 1.584473243709787) internal successors, (242323), 152838 states have internal predecessors, (242323), 30229 states have call successors, (30229), 50 states have call predecessors, (30229), 56 states have return successors, (37775), 30341 states have call predecessors, (37775), 30227 states have call successors, (37775) [2023-12-25 05:55:50,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183222 states to 183222 states and 310327 transitions. [2023-12-25 05:55:50,035 INFO L78 Accepts]: Start accepts. Automaton has 183222 states and 310327 transitions. Word has length 144 [2023-12-25 05:55:50,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:55:50,035 INFO L495 AbstractCegarLoop]: Abstraction has 183222 states and 310327 transitions. [2023-12-25 05:55:50,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:55:50,035 INFO L276 IsEmpty]: Start isEmpty. Operand 183222 states and 310327 transitions. [2023-12-25 05:55:50,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-25 05:55:50,218 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:55:50,218 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:55:50,224 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 (26)] Forceful destruction successful, exit code 0 [2023-12-25 05:55:50,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:55:50,419 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:55:50,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:55:50,420 INFO L85 PathProgramCache]: Analyzing trace with hash -709862988, now seen corresponding path program 1 times [2023-12-25 05:55:50,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:55:50,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1749246908] [2023-12-25 05:55:50,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:55:50,421 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:55:50,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:55:50,422 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:55:50,425 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 (27)] Waiting until timeout for monitored process [2023-12-25 05:55:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:55:50,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 05:55:50,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:55:51,115 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:55:51,115 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:55:51,116 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:55:51,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1749246908] [2023-12-25 05:55:51,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1749246908] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:55:51,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:55:51,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-25 05:55:51,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280861228] [2023-12-25 05:55:51,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:55:51,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 05:55:51,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:55:51,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 05:55:51,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-12-25 05:55:51,118 INFO L87 Difference]: Start difference. First operand 183222 states and 310327 transitions. Second operand has 14 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 6 states have call successors, (18), 5 states have call predecessors, (18), 7 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-12-25 05:56:08,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:56:08,339 INFO L93 Difference]: Finished difference Result 365739 states and 630269 transitions. [2023-12-25 05:56:08,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-25 05:56:08,340 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 6 states have call successors, (18), 5 states have call predecessors, (18), 7 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 147 [2023-12-25 05:56:08,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:56:10,810 INFO L225 Difference]: With dead ends: 365739 [2023-12-25 05:56:10,810 INFO L226 Difference]: Without dead ends: 365345 [2023-12-25 05:56:11,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=151, Invalid=719, Unknown=0, NotChecked=0, Total=870 [2023-12-25 05:56:11,093 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 1384 mSDsluCounter, 3821 mSDsCounter, 0 mSdLazyCounter, 1403 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 4349 SdHoareTripleChecker+Invalid, 1725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 1403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:56:11,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1392 Valid, 4349 Invalid, 1725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 1403 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 05:56:11,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365345 states.