/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_spec11_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:28:03,693 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:28:03,761 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:28:03,764 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:28:03,764 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:28:03,792 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:28:03,793 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:28:03,793 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:28:03,794 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:28:03,797 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:28:03,797 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:28:03,797 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:28:03,798 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:28:03,798 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:28:03,799 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:28:03,799 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:28:03,799 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:28:03,799 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:28:03,800 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:28:03,801 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:28:03,801 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:28:03,801 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:28:03,801 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:28:03,801 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:28:03,801 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:28:03,802 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:28:03,802 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:28:03,802 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:28:03,802 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:28:03,802 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:28:03,803 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:28:03,803 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:28:03,803 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:28:03,803 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:28:03,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:28:03,804 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:28:03,804 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:28:03,804 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:28:03,804 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:28:03,804 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:28:03,804 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:28:03,804 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:28:03,804 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:28:03,804 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:28:03,805 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:28:03,805 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:28:03,805 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:28:03,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:28:04,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:28:04,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:28:04,011 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:28:04,012 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:28:04,014 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product37.cil.c [2023-12-16 17:28:05,109 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:28:05,367 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:28:05,368 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product37.cil.c [2023-12-16 17:28:05,388 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f0acac87/9de0906a328b46b7a3079e664e13f3ff/FLAG79089b0de [2023-12-16 17:28:05,397 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f0acac87/9de0906a328b46b7a3079e664e13f3ff [2023-12-16 17:28:05,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:28:05,400 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:28:05,401 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:28:05,401 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:28:05,408 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:28:05,408 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:28:05" (1/1) ... [2023-12-16 17:28:05,409 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18ee0cca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:05, skipping insertion in model container [2023-12-16 17:28:05,409 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:28:05" (1/1) ... [2023-12-16 17:28:05,457 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:28:05,781 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_spec11_product37.cil.c[43755,43768] [2023-12-16 17:28:05,867 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:28:05,881 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-16 17:28:05,894 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:28:06,002 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_spec11_product37.cil.c[43755,43768] [2023-12-16 17:28:06,021 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:28:06,027 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:28:06,033 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2023-12-16 17:28:06,034 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [66] [2023-12-16 17:28:06,034 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [295] [2023-12-16 17:28:06,034 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [661] [2023-12-16 17:28:06,035 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1741] [2023-12-16 17:28:06,035 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [1790] [2023-12-16 17:28:06,035 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1812] [2023-12-16 17:28:06,035 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1821] [2023-12-16 17:28:06,035 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2233] [2023-12-16 17:28:06,035 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2524] [2023-12-16 17:28:06,035 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2753] [2023-12-16 17:28:06,065 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_spec11_product37.cil.c[43755,43768] [2023-12-16 17:28:06,079 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:28:06,117 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:28:06,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:06 WrapperNode [2023-12-16 17:28:06,117 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:28:06,119 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:28:06,119 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:28:06,119 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:28:06,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:06" (1/1) ... [2023-12-16 17:28:06,153 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:06" (1/1) ... [2023-12-16 17:28:06,208 INFO L138 Inliner]: procedures = 126, calls = 170, calls flagged for inlining = 51, calls inlined = 46, statements flattened = 788 [2023-12-16 17:28:06,208 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:28:06,209 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:28:06,209 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:28:06,209 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:28:06,230 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:06" (1/1) ... [2023-12-16 17:28:06,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:06" (1/1) ... [2023-12-16 17:28:06,236 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:06" (1/1) ... [2023-12-16 17:28:06,251 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2023-12-16 17:28:06,251 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:06" (1/1) ... [2023-12-16 17:28:06,252 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:06" (1/1) ... [2023-12-16 17:28:06,271 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:06" (1/1) ... [2023-12-16 17:28:06,296 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:06" (1/1) ... [2023-12-16 17:28:06,299 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:06" (1/1) ... [2023-12-16 17:28:06,301 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:06" (1/1) ... [2023-12-16 17:28:06,316 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:28:06,317 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:28:06,317 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:28:06,317 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:28:06,317 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:06" (1/1) ... [2023-12-16 17:28:06,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:28:06,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:28:06,346 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 17:28:06,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 17:28:06,385 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-16 17:28:06,386 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-16 17:28:06,386 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-16 17:28:06,386 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-16 17:28:06,386 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-16 17:28:06,386 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-16 17:28:06,402 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-16 17:28:06,403 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-16 17:28:06,403 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-16 17:28:06,403 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-16 17:28:06,405 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-16 17:28:06,406 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-16 17:28:06,406 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-16 17:28:06,406 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-16 17:28:06,406 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-16 17:28:06,406 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-16 17:28:06,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:28:06,406 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-16 17:28:06,406 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-16 17:28:06,406 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-16 17:28:06,406 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-16 17:28:06,406 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-16 17:28:06,406 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-16 17:28:06,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:28:06,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 17:28:06,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 17:28:06,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 17:28:06,407 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-16 17:28:06,407 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-16 17:28:06,407 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-16 17:28:06,407 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-16 17:28:06,407 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-16 17:28:06,407 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-16 17:28:06,407 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-16 17:28:06,407 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-16 17:28:06,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:28:06,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:28:06,553 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:28:06,555 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:28:07,038 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:28:07,105 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:28:07,105 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 17:28:07,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:28:07 BoogieIcfgContainer [2023-12-16 17:28:07,106 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:28:07,108 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:28:07,108 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:28:07,110 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:28:07,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:28:05" (1/3) ... [2023-12-16 17:28:07,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@120d4a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:28:07, skipping insertion in model container [2023-12-16 17:28:07,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:06" (2/3) ... [2023-12-16 17:28:07,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@120d4a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:28:07, skipping insertion in model container [2023-12-16 17:28:07,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:28:07" (3/3) ... [2023-12-16 17:28:07,112 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product37.cil.c [2023-12-16 17:28:07,124 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:28:07,124 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:28:07,169 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:28:07,174 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;@4ffc44eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:28:07,175 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:28:07,182 INFO L276 IsEmpty]: Start isEmpty. Operand has 234 states, 177 states have (on average 1.5932203389830508) internal successors, (282), 179 states have internal predecessors, (282), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 17:28:07,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-16 17:28:07,194 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:07,195 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:07,195 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:07,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:07,198 INFO L85 PathProgramCache]: Analyzing trace with hash 246464299, now seen corresponding path program 1 times [2023-12-16 17:28:07,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:07,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110065543] [2023-12-16 17:28:07,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:07,209 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:07,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:07,211 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:28:07,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 17:28:07,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:07,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 17:28:07,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:07,482 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-16 17:28:07,482 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:07,483 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:07,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110065543] [2023-12-16 17:28:07,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2110065543] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:07,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:07,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:28:07,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310746250] [2023-12-16 17:28:07,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:07,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 17:28:07,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:07,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 17:28:07,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:28:07,570 INFO L87 Difference]: Start difference. First operand has 234 states, 177 states have (on average 1.5932203389830508) internal successors, (282), 179 states have internal predecessors, (282), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:07,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:07,661 INFO L93 Difference]: Finished difference Result 319 states and 480 transitions. [2023-12-16 17:28:07,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 17:28:07,664 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 78 [2023-12-16 17:28:07,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:07,671 INFO L225 Difference]: With dead ends: 319 [2023-12-16 17:28:07,672 INFO L226 Difference]: Without dead ends: 231 [2023-12-16 17:28:07,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:28:07,677 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:07,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 343 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:28:07,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2023-12-16 17:28:07,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2023-12-16 17:28:07,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 175 states have (on average 1.5714285714285714) internal successors, (275), 176 states have internal predecessors, (275), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-12-16 17:28:07,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 354 transitions. [2023-12-16 17:28:07,717 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 354 transitions. Word has length 78 [2023-12-16 17:28:07,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:07,718 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 354 transitions. [2023-12-16 17:28:07,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:07,718 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 354 transitions. [2023-12-16 17:28:07,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-16 17:28:07,722 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:07,723 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:07,730 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 17:28:07,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:07,928 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:07,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:07,929 INFO L85 PathProgramCache]: Analyzing trace with hash 264150216, now seen corresponding path program 1 times [2023-12-16 17:28:07,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:07,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364107243] [2023-12-16 17:28:07,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:07,930 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:07,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:07,931 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:28:07,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 17:28:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:08,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:28:08,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:08,220 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 17:28:08,220 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:08,220 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:08,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1364107243] [2023-12-16 17:28:08,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1364107243] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:08,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:08,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:28:08,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690416975] [2023-12-16 17:28:08,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:08,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:28:08,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:08,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:28:08,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:28:08,223 INFO L87 Difference]: Start difference. First operand 231 states and 354 transitions. Second operand has 5 states, 4 states have (on average 12.25) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:28:08,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:08,316 INFO L93 Difference]: Finished difference Result 457 states and 702 transitions. [2023-12-16 17:28:08,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:28:08,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.25) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 79 [2023-12-16 17:28:08,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:08,319 INFO L225 Difference]: With dead ends: 457 [2023-12-16 17:28:08,319 INFO L226 Difference]: Without dead ends: 233 [2023-12-16 17:28:08,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:28:08,322 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 8 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1313 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:08,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1313 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:28:08,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-12-16 17:28:08,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2023-12-16 17:28:08,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 176 states have (on average 1.5681818181818181) internal successors, (276), 178 states have internal predecessors, (276), 40 states have call successors, (40), 15 states have call predecessors, (40), 16 states have return successors, (41), 39 states have call predecessors, (41), 39 states have call successors, (41) [2023-12-16 17:28:08,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 357 transitions. [2023-12-16 17:28:08,335 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 357 transitions. Word has length 79 [2023-12-16 17:28:08,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:08,335 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 357 transitions. [2023-12-16 17:28:08,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.25) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:28:08,335 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 357 transitions. [2023-12-16 17:28:08,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-16 17:28:08,337 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:08,337 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:08,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 17:28:08,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:08,542 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:08,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:08,543 INFO L85 PathProgramCache]: Analyzing trace with hash -848607247, now seen corresponding path program 1 times [2023-12-16 17:28:08,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:08,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [964285780] [2023-12-16 17:28:08,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:08,544 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:08,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:08,545 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:28:08,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 17:28:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:08,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:28:08,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:08,808 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 17:28:08,808 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:08,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:08,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [964285780] [2023-12-16 17:28:08,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [964285780] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:08,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:08,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:28:08,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822152780] [2023-12-16 17:28:08,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:08,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:28:08,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:08,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:28:08,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:28:08,811 INFO L87 Difference]: Start difference. First operand 233 states and 357 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:28:08,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:08,949 INFO L93 Difference]: Finished difference Result 459 states and 706 transitions. [2023-12-16 17:28:08,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:28:08,950 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 80 [2023-12-16 17:28:08,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:08,952 INFO L225 Difference]: With dead ends: 459 [2023-12-16 17:28:08,952 INFO L226 Difference]: Without dead ends: 235 [2023-12-16 17:28:08,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:28:08,954 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 8 mSDsluCounter, 970 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:08,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1299 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:28:08,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2023-12-16 17:28:08,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2023-12-16 17:28:08,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 177 states have (on average 1.5649717514124293) internal successors, (277), 180 states have internal predecessors, (277), 40 states have call successors, (40), 15 states have call predecessors, (40), 17 states have return successors, (45), 39 states have call predecessors, (45), 39 states have call successors, (45) [2023-12-16 17:28:08,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 362 transitions. [2023-12-16 17:28:08,982 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 362 transitions. Word has length 80 [2023-12-16 17:28:08,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:08,982 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 362 transitions. [2023-12-16 17:28:08,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:28:08,982 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 362 transitions. [2023-12-16 17:28:08,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 17:28:08,984 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:08,984 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:08,991 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-16 17:28:09,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:09,189 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:09,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:09,189 INFO L85 PathProgramCache]: Analyzing trace with hash -872885490, now seen corresponding path program 1 times [2023-12-16 17:28:09,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:09,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [534009048] [2023-12-16 17:28:09,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:09,190 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:09,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:09,193 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:28:09,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 17:28:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:09,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:28:09,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:09,435 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:28:09,435 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:09,435 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:09,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [534009048] [2023-12-16 17:28:09,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [534009048] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:09,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:09,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:28:09,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183004133] [2023-12-16 17:28:09,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:09,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:28:09,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:09,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:28:09,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:28:09,437 INFO L87 Difference]: Start difference. First operand 235 states and 362 transitions. Second operand has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:28:09,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:09,530 INFO L93 Difference]: Finished difference Result 451 states and 696 transitions. [2023-12-16 17:28:09,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:28:09,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 81 [2023-12-16 17:28:09,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:09,533 INFO L225 Difference]: With dead ends: 451 [2023-12-16 17:28:09,533 INFO L226 Difference]: Without dead ends: 235 [2023-12-16 17:28:09,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:28:09,534 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 8 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1313 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:09,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1313 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:28:09,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2023-12-16 17:28:09,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2023-12-16 17:28:09,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 177 states have (on average 1.5649717514124293) internal successors, (277), 180 states have internal predecessors, (277), 40 states have call successors, (40), 15 states have call predecessors, (40), 17 states have return successors, (44), 39 states have call predecessors, (44), 39 states have call successors, (44) [2023-12-16 17:28:09,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 361 transitions. [2023-12-16 17:28:09,543 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 361 transitions. Word has length 81 [2023-12-16 17:28:09,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:09,544 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 361 transitions. [2023-12-16 17:28:09,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:28:09,544 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 361 transitions. [2023-12-16 17:28:09,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-16 17:28:09,545 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:09,545 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:09,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-16 17:28:09,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:09,750 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:09,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:09,751 INFO L85 PathProgramCache]: Analyzing trace with hash 2067610901, now seen corresponding path program 2 times [2023-12-16 17:28:09,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:09,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1072716920] [2023-12-16 17:28:09,751 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 17:28:09,751 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:09,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:09,756 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:28:09,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 17:28:09,895 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-16 17:28:09,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 17:28:09,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 17:28:09,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:10,002 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-16 17:28:10,002 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:10,002 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:10,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1072716920] [2023-12-16 17:28:10,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1072716920] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:10,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:10,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:28:10,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416427350] [2023-12-16 17:28:10,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:10,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:28:10,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:10,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:28:10,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:28:10,004 INFO L87 Difference]: Start difference. First operand 235 states and 361 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:10,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:10,112 INFO L93 Difference]: Finished difference Result 548 states and 828 transitions. [2023-12-16 17:28:10,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:28:10,112 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 82 [2023-12-16 17:28:10,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:10,115 INFO L225 Difference]: With dead ends: 548 [2023-12-16 17:28:10,115 INFO L226 Difference]: Without dead ends: 473 [2023-12-16 17:28:10,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:28:10,116 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 336 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:10,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 1344 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:28:10,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2023-12-16 17:28:10,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 446. [2023-12-16 17:28:10,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 340 states have (on average 1.5794117647058823) internal successors, (537), 344 states have internal predecessors, (537), 74 states have call successors, (74), 29 states have call predecessors, (74), 31 states have return successors, (77), 72 states have call predecessors, (77), 72 states have call successors, (77) [2023-12-16 17:28:10,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 688 transitions. [2023-12-16 17:28:10,131 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 688 transitions. Word has length 82 [2023-12-16 17:28:10,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:10,132 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 688 transitions. [2023-12-16 17:28:10,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:10,132 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 688 transitions. [2023-12-16 17:28:10,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-16 17:28:10,133 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:10,133 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:10,157 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-16 17:28:10,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:10,337 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:10,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:10,338 INFO L85 PathProgramCache]: Analyzing trace with hash -480324938, now seen corresponding path program 1 times [2023-12-16 17:28:10,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:10,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17760088] [2023-12-16 17:28:10,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:10,338 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:10,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:10,339 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:28:10,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 17:28:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:10,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:28:10,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:10,518 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:28:10,518 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:10,518 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:10,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [17760088] [2023-12-16 17:28:10,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [17760088] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:10,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:10,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:28:10,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002779235] [2023-12-16 17:28:10,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:10,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:28:10,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:10,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:28:10,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:28:10,520 INFO L87 Difference]: Start difference. First operand 446 states and 688 transitions. Second operand has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:28:10,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:10,612 INFO L93 Difference]: Finished difference Result 875 states and 1353 transitions. [2023-12-16 17:28:10,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:28:10,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 83 [2023-12-16 17:28:10,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:10,614 INFO L225 Difference]: With dead ends: 875 [2023-12-16 17:28:10,614 INFO L226 Difference]: Without dead ends: 448 [2023-12-16 17:28:10,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:28:10,616 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 6 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1315 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 [2023-12-16 17:28:10,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1315 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:28:10,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2023-12-16 17:28:10,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 448. [2023-12-16 17:28:10,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 341 states have (on average 1.5777126099706744) internal successors, (538), 346 states have internal predecessors, (538), 74 states have call successors, (74), 29 states have call predecessors, (74), 32 states have return successors, (79), 72 states have call predecessors, (79), 72 states have call successors, (79) [2023-12-16 17:28:10,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 691 transitions. [2023-12-16 17:28:10,632 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 691 transitions. Word has length 83 [2023-12-16 17:28:10,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:10,632 INFO L495 AbstractCegarLoop]: Abstraction has 448 states and 691 transitions. [2023-12-16 17:28:10,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:28:10,633 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 691 transitions. [2023-12-16 17:28:10,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-16 17:28:10,634 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:10,634 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:10,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-16 17:28:10,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:10,840 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:10,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:10,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1200891176, now seen corresponding path program 1 times [2023-12-16 17:28:10,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:10,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1063853262] [2023-12-16 17:28:10,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:10,842 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:10,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:10,843 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:28:10,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 17:28:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:11,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:28:11,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:11,071 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-16 17:28:11,071 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:11,071 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:11,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1063853262] [2023-12-16 17:28:11,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1063853262] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:11,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:11,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:28:11,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590820776] [2023-12-16 17:28:11,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:11,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:28:11,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:11,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:28:11,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:28:11,074 INFO L87 Difference]: Start difference. First operand 448 states and 691 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:28:11,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:11,162 INFO L93 Difference]: Finished difference Result 875 states and 1351 transitions. [2023-12-16 17:28:11,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:28:11,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 84 [2023-12-16 17:28:11,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:11,165 INFO L225 Difference]: With dead ends: 875 [2023-12-16 17:28:11,165 INFO L226 Difference]: Without dead ends: 450 [2023-12-16 17:28:11,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:28:11,167 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 8 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:11,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1300 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:28:11,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2023-12-16 17:28:11,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 448. [2023-12-16 17:28:11,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 341 states have (on average 1.5777126099706744) internal successors, (538), 346 states have internal predecessors, (538), 74 states have call successors, (74), 29 states have call predecessors, (74), 32 states have return successors, (78), 72 states have call predecessors, (78), 72 states have call successors, (78) [2023-12-16 17:28:11,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 690 transitions. [2023-12-16 17:28:11,180 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 690 transitions. Word has length 84 [2023-12-16 17:28:11,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:11,180 INFO L495 AbstractCegarLoop]: Abstraction has 448 states and 690 transitions. [2023-12-16 17:28:11,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:28:11,180 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 690 transitions. [2023-12-16 17:28:11,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 17:28:11,182 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:11,182 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:11,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 17:28:11,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:11,389 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:11,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:11,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1484342649, now seen corresponding path program 2 times [2023-12-16 17:28:11,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:11,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [144517006] [2023-12-16 17:28:11,390 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 17:28:11,390 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:11,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:11,391 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:28:11,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 17:28:11,529 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-16 17:28:11,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 17:28:11,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 17:28:11,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:11,652 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:28:11,652 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:11,652 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:11,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [144517006] [2023-12-16 17:28:11,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [144517006] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:11,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:11,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:28:11,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859790774] [2023-12-16 17:28:11,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:11,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:28:11,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:11,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:28:11,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:28:11,654 INFO L87 Difference]: Start difference. First operand 448 states and 690 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:11,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:11,768 INFO L93 Difference]: Finished difference Result 1072 states and 1623 transitions. [2023-12-16 17:28:11,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:28:11,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 85 [2023-12-16 17:28:11,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:11,773 INFO L225 Difference]: With dead ends: 1072 [2023-12-16 17:28:11,773 INFO L226 Difference]: Without dead ends: 922 [2023-12-16 17:28:11,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:28:11,774 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 326 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:11,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 1347 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:28:11,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2023-12-16 17:28:11,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 870. [2023-12-16 17:28:11,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 667 states have (on average 1.5862068965517242) internal successors, (1058), 674 states have internal predecessors, (1058), 142 states have call successors, (142), 57 states have call predecessors, (142), 60 states have return successors, (144), 138 states have call predecessors, (144), 138 states have call successors, (144) [2023-12-16 17:28:11,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1344 transitions. [2023-12-16 17:28:11,803 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1344 transitions. Word has length 85 [2023-12-16 17:28:11,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:11,803 INFO L495 AbstractCegarLoop]: Abstraction has 870 states and 1344 transitions. [2023-12-16 17:28:11,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:11,804 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1344 transitions. [2023-12-16 17:28:11,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 17:28:11,806 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:11,806 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:11,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 17:28:12,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:12,010 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:12,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:12,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1829109289, now seen corresponding path program 1 times [2023-12-16 17:28:12,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:12,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [380515899] [2023-12-16 17:28:12,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:12,011 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:12,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:12,012 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:28:12,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 17:28:12,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:12,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:28:12,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:12,193 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-16 17:28:12,193 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:12,193 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:12,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [380515899] [2023-12-16 17:28:12,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [380515899] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:12,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:12,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:28:12,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922415117] [2023-12-16 17:28:12,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:12,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:28:12,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:12,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:28:12,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:28:12,195 INFO L87 Difference]: Start difference. First operand 870 states and 1344 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:28:12,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:12,306 INFO L93 Difference]: Finished difference Result 1725 states and 2670 transitions. [2023-12-16 17:28:12,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:28:12,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 86 [2023-12-16 17:28:12,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:12,310 INFO L225 Difference]: With dead ends: 1725 [2023-12-16 17:28:12,310 INFO L226 Difference]: Without dead ends: 878 [2023-12-16 17:28:12,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:28:12,312 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 6 mSDsluCounter, 972 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1302 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:12,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1302 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:28:12,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2023-12-16 17:28:12,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 872. [2023-12-16 17:28:12,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 668 states have (on average 1.5853293413173652) internal successors, (1059), 676 states have internal predecessors, (1059), 142 states have call successors, (142), 57 states have call predecessors, (142), 61 states have return successors, (148), 138 states have call predecessors, (148), 138 states have call successors, (148) [2023-12-16 17:28:12,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1349 transitions. [2023-12-16 17:28:12,338 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1349 transitions. Word has length 86 [2023-12-16 17:28:12,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:12,338 INFO L495 AbstractCegarLoop]: Abstraction has 872 states and 1349 transitions. [2023-12-16 17:28:12,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:28:12,339 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1349 transitions. [2023-12-16 17:28:12,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-16 17:28:12,341 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:12,341 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:12,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-12-16 17:28:12,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:12,546 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:12,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:12,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1329985667, now seen corresponding path program 1 times [2023-12-16 17:28:12,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:12,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [198651128] [2023-12-16 17:28:12,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:12,547 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:12,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:12,548 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:28:12,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 17:28:12,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:12,719 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:28:12,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:12,729 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:28:12,729 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:12,729 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:12,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [198651128] [2023-12-16 17:28:12,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [198651128] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:12,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:12,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:28:12,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912664660] [2023-12-16 17:28:12,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:12,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:28:12,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:12,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:28:12,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:28:12,731 INFO L87 Difference]: Start difference. First operand 872 states and 1349 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:12,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:12,774 INFO L93 Difference]: Finished difference Result 958 states and 1464 transitions. [2023-12-16 17:28:12,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:28:12,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 87 [2023-12-16 17:28:12,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:12,779 INFO L225 Difference]: With dead ends: 958 [2023-12-16 17:28:12,779 INFO L226 Difference]: Without dead ends: 874 [2023-12-16 17:28:12,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:28:12,780 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 0 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:12,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 679 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:28:12,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2023-12-16 17:28:12,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 874. [2023-12-16 17:28:12,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 670 states have (on average 1.5835820895522388) internal successors, (1061), 678 states have internal predecessors, (1061), 142 states have call successors, (142), 57 states have call predecessors, (142), 61 states have return successors, (148), 138 states have call predecessors, (148), 138 states have call successors, (148) [2023-12-16 17:28:12,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1351 transitions. [2023-12-16 17:28:12,804 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1351 transitions. Word has length 87 [2023-12-16 17:28:12,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:12,805 INFO L495 AbstractCegarLoop]: Abstraction has 874 states and 1351 transitions. [2023-12-16 17:28:12,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:12,805 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1351 transitions. [2023-12-16 17:28:12,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 17:28:12,807 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:12,807 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:12,830 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 [2023-12-16 17:28:13,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:13,013 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:13,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:13,013 INFO L85 PathProgramCache]: Analyzing trace with hash -2088741424, now seen corresponding path program 1 times [2023-12-16 17:28:13,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:13,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1415510119] [2023-12-16 17:28:13,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:13,014 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:13,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:13,015 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:28:13,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 17:28:13,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:13,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:28:13,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:13,184 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:28:13,185 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:13,185 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:13,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1415510119] [2023-12-16 17:28:13,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1415510119] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:13,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:13,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:28:13,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700113956] [2023-12-16 17:28:13,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:13,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:28:13,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:13,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:28:13,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:28:13,186 INFO L87 Difference]: Start difference. First operand 874 states and 1351 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:13,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:13,266 INFO L93 Difference]: Finished difference Result 1946 states and 3050 transitions. [2023-12-16 17:28:13,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:28:13,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 92 [2023-12-16 17:28:13,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:13,270 INFO L225 Difference]: With dead ends: 1946 [2023-12-16 17:28:13,271 INFO L226 Difference]: Without dead ends: 1098 [2023-12-16 17:28:13,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:28:13,273 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 109 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:13,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 648 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:28:13,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2023-12-16 17:28:13,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1078. [2023-12-16 17:28:13,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 830 states have (on average 1.6012048192771084) internal successors, (1329), 838 states have internal predecessors, (1329), 186 states have call successors, (186), 57 states have call predecessors, (186), 61 states have return successors, (194), 182 states have call predecessors, (194), 182 states have call successors, (194) [2023-12-16 17:28:13,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1709 transitions. [2023-12-16 17:28:13,308 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1709 transitions. Word has length 92 [2023-12-16 17:28:13,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:13,308 INFO L495 AbstractCegarLoop]: Abstraction has 1078 states and 1709 transitions. [2023-12-16 17:28:13,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:13,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1709 transitions. [2023-12-16 17:28:13,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-16 17:28:13,310 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:13,311 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:13,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-16 17:28:13,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:13,531 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:13,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:13,532 INFO L85 PathProgramCache]: Analyzing trace with hash -43274259, now seen corresponding path program 1 times [2023-12-16 17:28:13,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:13,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1653137407] [2023-12-16 17:28:13,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:13,533 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:13,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:13,535 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:28:13,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 17:28:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:13,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:28:13,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:13,776 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:28:13,776 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:13,776 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:13,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1653137407] [2023-12-16 17:28:13,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1653137407] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:13,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:13,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:28:13,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396496561] [2023-12-16 17:28:13,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:13,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:28:13,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:13,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:28:13,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:28:13,778 INFO L87 Difference]: Start difference. First operand 1078 states and 1709 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:28:13,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:13,867 INFO L93 Difference]: Finished difference Result 1622 states and 2560 transitions. [2023-12-16 17:28:13,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:28:13,868 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 93 [2023-12-16 17:28:13,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:13,870 INFO L225 Difference]: With dead ends: 1622 [2023-12-16 17:28:13,870 INFO L226 Difference]: Without dead ends: 568 [2023-12-16 17:28:13,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:28:13,873 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 315 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:13,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 700 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:28:13,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-12-16 17:28:13,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 556. [2023-12-16 17:28:13,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 425 states have (on average 1.5741176470588236) internal successors, (669), 430 states have internal predecessors, (669), 96 states have call successors, (96), 31 states have call predecessors, (96), 34 states have return successors, (102), 94 states have call predecessors, (102), 94 states have call successors, (102) [2023-12-16 17:28:13,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 867 transitions. [2023-12-16 17:28:13,891 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 867 transitions. Word has length 93 [2023-12-16 17:28:13,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:13,892 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 867 transitions. [2023-12-16 17:28:13,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:28:13,892 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 867 transitions. [2023-12-16 17:28:13,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-16 17:28:13,893 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:13,893 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:13,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-16 17:28:14,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:14,099 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:14,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:14,100 INFO L85 PathProgramCache]: Analyzing trace with hash 625114546, now seen corresponding path program 1 times [2023-12-16 17:28:14,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:14,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [659185740] [2023-12-16 17:28:14,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:14,100 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:14,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:14,101 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:28:14,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 17:28:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:14,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:28:14,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:14,302 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:28:14,303 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:28:14,359 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:28:14,359 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:14,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [659185740] [2023-12-16 17:28:14,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [659185740] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:28:14,359 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:28:14,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-16 17:28:14,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331053029] [2023-12-16 17:28:14,360 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:28:14,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:28:14,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:14,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:28:14,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:28:14,361 INFO L87 Difference]: Start difference. First operand 556 states and 867 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 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) [2023-12-16 17:28:14,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:14,567 INFO L93 Difference]: Finished difference Result 1274 states and 2053 transitions. [2023-12-16 17:28:14,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:28:14,567 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 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 95 [2023-12-16 17:28:14,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:14,572 INFO L225 Difference]: With dead ends: 1274 [2023-12-16 17:28:14,572 INFO L226 Difference]: Without dead ends: 1108 [2023-12-16 17:28:14,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:28:14,573 INFO L413 NwaCegarLoop]: 360 mSDtfsCounter, 578 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 1281 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:14,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 1281 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:28:14,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2023-12-16 17:28:14,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1083. [2023-12-16 17:28:14,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 849 states have (on average 1.619552414605418) internal successors, (1375), 854 states have internal predecessors, (1375), 199 states have call successors, (199), 31 states have call predecessors, (199), 34 states have return successors, (215), 197 states have call predecessors, (215), 197 states have call successors, (215) [2023-12-16 17:28:14,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1789 transitions. [2023-12-16 17:28:14,609 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1789 transitions. Word has length 95 [2023-12-16 17:28:14,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:14,609 INFO L495 AbstractCegarLoop]: Abstraction has 1083 states and 1789 transitions. [2023-12-16 17:28:14,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 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) [2023-12-16 17:28:14,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1789 transitions. [2023-12-16 17:28:14,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 17:28:14,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:14,612 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:14,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-16 17:28:14,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:14,817 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:14,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:14,818 INFO L85 PathProgramCache]: Analyzing trace with hash -2061173774, now seen corresponding path program 1 times [2023-12-16 17:28:14,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:14,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [453734681] [2023-12-16 17:28:14,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:14,818 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:14,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:14,820 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:28:14,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-16 17:28:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:14,999 INFO L262 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:28:15,001 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:15,009 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:28:15,009 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:15,009 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:15,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [453734681] [2023-12-16 17:28:15,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [453734681] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:15,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:15,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:28:15,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059888078] [2023-12-16 17:28:15,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:15,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:28:15,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:15,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:28:15,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:28:15,011 INFO L87 Difference]: Start difference. First operand 1083 states and 1789 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:15,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:15,163 INFO L93 Difference]: Finished difference Result 2253 states and 3746 transitions. [2023-12-16 17:28:15,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:28:15,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 99 [2023-12-16 17:28:15,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:15,182 INFO L225 Difference]: With dead ends: 2253 [2023-12-16 17:28:15,182 INFO L226 Difference]: Without dead ends: 1366 [2023-12-16 17:28:15,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:28:15,185 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 103 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:15,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 668 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:28:15,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2023-12-16 17:28:15,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1361. [2023-12-16 17:28:15,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1361 states, 1066 states have (on average 1.623827392120075) internal successors, (1731), 1071 states have internal predecessors, (1731), 260 states have call successors, (260), 31 states have call predecessors, (260), 34 states have return successors, (276), 258 states have call predecessors, (276), 258 states have call successors, (276) [2023-12-16 17:28:15,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 2267 transitions. [2023-12-16 17:28:15,233 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 2267 transitions. Word has length 99 [2023-12-16 17:28:15,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:15,233 INFO L495 AbstractCegarLoop]: Abstraction has 1361 states and 2267 transitions. [2023-12-16 17:28:15,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:15,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 2267 transitions. [2023-12-16 17:28:15,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-16 17:28:15,237 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:15,237 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:15,243 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-12-16 17:28:15,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:15,441 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:15,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:15,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1553274248, now seen corresponding path program 1 times [2023-12-16 17:28:15,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:15,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1325078532] [2023-12-16 17:28:15,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:15,442 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:15,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:15,443 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:28:15,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-16 17:28:15,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:15,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:28:15,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:15,618 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:28:15,618 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:15,618 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:15,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1325078532] [2023-12-16 17:28:15,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1325078532] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:15,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:15,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:28:15,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531075031] [2023-12-16 17:28:15,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:15,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:28:15,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:15,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:28:15,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:28:15,620 INFO L87 Difference]: Start difference. First operand 1361 states and 2267 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:15,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:15,715 INFO L93 Difference]: Finished difference Result 3286 states and 5519 transitions. [2023-12-16 17:28:15,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:28:15,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2023-12-16 17:28:15,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:15,724 INFO L225 Difference]: With dead ends: 3286 [2023-12-16 17:28:15,724 INFO L226 Difference]: Without dead ends: 2061 [2023-12-16 17:28:15,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:28:15,730 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 101 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:15,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 667 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:28:15,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2061 states. [2023-12-16 17:28:15,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2061 to 2051. [2023-12-16 17:28:15,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2051 states, 1625 states have (on average 1.628923076923077) internal successors, (2647), 1630 states have internal predecessors, (2647), 391 states have call successors, (391), 31 states have call predecessors, (391), 34 states have return successors, (407), 389 states have call predecessors, (407), 389 states have call successors, (407) [2023-12-16 17:28:15,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2051 states to 2051 states and 3445 transitions. [2023-12-16 17:28:15,837 INFO L78 Accepts]: Start accepts. Automaton has 2051 states and 3445 transitions. Word has length 100 [2023-12-16 17:28:15,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:15,837 INFO L495 AbstractCegarLoop]: Abstraction has 2051 states and 3445 transitions. [2023-12-16 17:28:15,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:15,838 INFO L276 IsEmpty]: Start isEmpty. Operand 2051 states and 3445 transitions. [2023-12-16 17:28:15,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 17:28:15,843 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:15,843 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:15,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-16 17:28:16,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:16,048 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:16,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:16,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1432653056, now seen corresponding path program 1 times [2023-12-16 17:28:16,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:16,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [439886769] [2023-12-16 17:28:16,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:16,049 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:16,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:16,050 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:28:16,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-16 17:28:16,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:16,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:28:16,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:16,225 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:28:16,226 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:16,226 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:16,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [439886769] [2023-12-16 17:28:16,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [439886769] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:16,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:16,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:28:16,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886639005] [2023-12-16 17:28:16,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:16,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:28:16,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:16,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:28:16,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:28:16,227 INFO L87 Difference]: Start difference. First operand 2051 states and 3445 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, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:16,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:16,336 INFO L93 Difference]: Finished difference Result 4837 states and 8190 transitions. [2023-12-16 17:28:16,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:28:16,337 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, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 101 [2023-12-16 17:28:16,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:16,349 INFO L225 Difference]: With dead ends: 4837 [2023-12-16 17:28:16,349 INFO L226 Difference]: Without dead ends: 3103 [2023-12-16 17:28:16,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:28:16,355 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 99 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:16,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 662 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:28:16,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3103 states. [2023-12-16 17:28:16,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3103 to 3093. [2023-12-16 17:28:16,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3093 states, 2497 states have (on average 1.6335602723267921) internal successors, (4079), 2502 states have internal predecessors, (4079), 561 states have call successors, (561), 31 states have call predecessors, (561), 34 states have return successors, (587), 559 states have call predecessors, (587), 559 states have call successors, (587) [2023-12-16 17:28:16,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3093 states to 3093 states and 5227 transitions. [2023-12-16 17:28:16,529 INFO L78 Accepts]: Start accepts. Automaton has 3093 states and 5227 transitions. Word has length 101 [2023-12-16 17:28:16,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:16,529 INFO L495 AbstractCegarLoop]: Abstraction has 3093 states and 5227 transitions. [2023-12-16 17:28:16,530 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, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:16,530 INFO L276 IsEmpty]: Start isEmpty. Operand 3093 states and 5227 transitions. [2023-12-16 17:28:16,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 17:28:16,536 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:16,536 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:16,552 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 [2023-12-16 17:28:16,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:16,752 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:16,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:16,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1721778073, now seen corresponding path program 1 times [2023-12-16 17:28:16,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:16,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1552633455] [2023-12-16 17:28:16,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:16,753 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:16,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:16,754 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:28:16,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-16 17:28:16,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:16,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:28:16,915 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:16,930 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:28:16,931 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:16,931 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:16,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1552633455] [2023-12-16 17:28:16,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1552633455] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:16,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:16,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:28:16,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581886684] [2023-12-16 17:28:16,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:16,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:28:16,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:16,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:28:16,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:28:16,932 INFO L87 Difference]: Start difference. First operand 3093 states and 5227 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:17,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:17,074 INFO L93 Difference]: Finished difference Result 7287 states and 12409 transitions. [2023-12-16 17:28:17,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:28:17,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 102 [2023-12-16 17:28:17,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:17,120 INFO L225 Difference]: With dead ends: 7287 [2023-12-16 17:28:17,121 INFO L226 Difference]: Without dead ends: 4785 [2023-12-16 17:28:17,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:28:17,128 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 97 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:17,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 662 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:28:17,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4785 states. [2023-12-16 17:28:17,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4785 to 4775. [2023-12-16 17:28:17,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4775 states, 3929 states have (on average 1.6373122932043778) internal successors, (6433), 3934 states have internal predecessors, (6433), 811 states have call successors, (811), 31 states have call predecessors, (811), 34 states have return successors, (853), 809 states have call predecessors, (853), 809 states have call successors, (853) [2023-12-16 17:28:17,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4775 states to 4775 states and 8097 transitions. [2023-12-16 17:28:17,329 INFO L78 Accepts]: Start accepts. Automaton has 4775 states and 8097 transitions. Word has length 102 [2023-12-16 17:28:17,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:17,330 INFO L495 AbstractCegarLoop]: Abstraction has 4775 states and 8097 transitions. [2023-12-16 17:28:17,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:17,330 INFO L276 IsEmpty]: Start isEmpty. Operand 4775 states and 8097 transitions. [2023-12-16 17:28:17,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-16 17:28:17,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:17,336 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:17,346 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-12-16 17:28:17,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:17,542 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:17,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:17,542 INFO L85 PathProgramCache]: Analyzing trace with hash 59065916, now seen corresponding path program 1 times [2023-12-16 17:28:17,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:17,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1163286093] [2023-12-16 17:28:17,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:17,543 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:17,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:17,544 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:28:17,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-16 17:28:17,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:17,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:28:17,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:17,724 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:28:17,724 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:17,724 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:17,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1163286093] [2023-12-16 17:28:17,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1163286093] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:17,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:17,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:28:17,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132967671] [2023-12-16 17:28:17,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:17,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:28:17,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:17,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:28:17,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:28:17,725 INFO L87 Difference]: Start difference. First operand 4775 states and 8097 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:17,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:17,963 INFO L93 Difference]: Finished difference Result 11465 states and 19540 transitions. [2023-12-16 17:28:17,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:28:17,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2023-12-16 17:28:17,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:18,006 INFO L225 Difference]: With dead ends: 11465 [2023-12-16 17:28:18,007 INFO L226 Difference]: Without dead ends: 7659 [2023-12-16 17:28:18,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:28:18,019 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 95 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:18,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 672 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:28:18,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7659 states. [2023-12-16 17:28:18,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7659 to 7649. [2023-12-16 17:28:18,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7649 states, 6269 states have (on average 1.6267347264316478) internal successors, (10198), 6274 states have internal predecessors, (10198), 1345 states have call successors, (1345), 31 states have call predecessors, (1345), 34 states have return successors, (1413), 1343 states have call predecessors, (1413), 1343 states have call successors, (1413) [2023-12-16 17:28:18,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7649 states to 7649 states and 12956 transitions. [2023-12-16 17:28:18,389 INFO L78 Accepts]: Start accepts. Automaton has 7649 states and 12956 transitions. Word has length 103 [2023-12-16 17:28:18,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:18,389 INFO L495 AbstractCegarLoop]: Abstraction has 7649 states and 12956 transitions. [2023-12-16 17:28:18,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:18,390 INFO L276 IsEmpty]: Start isEmpty. Operand 7649 states and 12956 transitions. [2023-12-16 17:28:18,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 17:28:18,398 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:18,398 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:18,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-16 17:28:18,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:18,603 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:18,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:18,603 INFO L85 PathProgramCache]: Analyzing trace with hash 820214365, now seen corresponding path program 1 times [2023-12-16 17:28:18,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:18,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1222070110] [2023-12-16 17:28:18,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:18,604 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:18,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:18,605 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:28:18,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-16 17:28:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:18,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:28:18,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:18,866 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:28:18,866 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:18,866 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:18,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1222070110] [2023-12-16 17:28:18,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1222070110] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:18,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:18,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:28:18,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467345521] [2023-12-16 17:28:18,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:18,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:28:18,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:18,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:28:18,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:28:18,867 INFO L87 Difference]: Start difference. First operand 7649 states and 12956 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:19,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:19,322 INFO L93 Difference]: Finished difference Result 19112 states and 32580 transitions. [2023-12-16 17:28:19,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:28:19,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2023-12-16 17:28:19,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:19,359 INFO L225 Difference]: With dead ends: 19112 [2023-12-16 17:28:19,360 INFO L226 Difference]: Without dead ends: 12895 [2023-12-16 17:28:19,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:28:19,379 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 93 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:19,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 667 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:28:19,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12895 states. [2023-12-16 17:28:19,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12895 to 12885. [2023-12-16 17:28:19,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12885 states, 10630 states have (on average 1.6249294449670744) internal successors, (17273), 10635 states have internal predecessors, (17273), 2220 states have call successors, (2220), 31 states have call predecessors, (2220), 34 states have return successors, (2332), 2218 states have call predecessors, (2332), 2218 states have call successors, (2332) [2023-12-16 17:28:19,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12885 states to 12885 states and 21825 transitions. [2023-12-16 17:28:19,973 INFO L78 Accepts]: Start accepts. Automaton has 12885 states and 21825 transitions. Word has length 104 [2023-12-16 17:28:19,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:19,973 INFO L495 AbstractCegarLoop]: Abstraction has 12885 states and 21825 transitions. [2023-12-16 17:28:19,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:19,973 INFO L276 IsEmpty]: Start isEmpty. Operand 12885 states and 21825 transitions. [2023-12-16 17:28:19,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-16 17:28:19,985 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:19,985 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:19,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-16 17:28:20,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:20,189 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:20,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:20,190 INFO L85 PathProgramCache]: Analyzing trace with hash 191226282, now seen corresponding path program 1 times [2023-12-16 17:28:20,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:20,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788187029] [2023-12-16 17:28:20,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:20,190 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:20,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:20,191 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:28:20,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-16 17:28:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:20,354 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:28:20,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:20,377 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:28:20,378 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:20,378 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:20,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788187029] [2023-12-16 17:28:20,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788187029] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:20,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:20,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:28:20,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822980789] [2023-12-16 17:28:20,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:20,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:28:20,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:20,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:28:20,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:28:20,379 INFO L87 Difference]: Start difference. First operand 12885 states and 21825 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:21,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:21,142 INFO L93 Difference]: Finished difference Result 33831 states and 57536 transitions. [2023-12-16 17:28:21,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:28:21,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2023-12-16 17:28:21,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:21,212 INFO L225 Difference]: With dead ends: 33831 [2023-12-16 17:28:21,213 INFO L226 Difference]: Without dead ends: 22909 [2023-12-16 17:28:21,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:28:21,245 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 91 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:21,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 679 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:28:21,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22909 states. [2023-12-16 17:28:22,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22909 to 22899. [2023-12-16 17:28:22,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22899 states, 18883 states have (on average 1.6158978975798337) internal successors, (30513), 18888 states have internal predecessors, (30513), 3981 states have call successors, (3981), 31 states have call predecessors, (3981), 34 states have return successors, (4171), 3979 states have call predecessors, (4171), 3979 states have call successors, (4171) [2023-12-16 17:28:22,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22899 states to 22899 states and 38665 transitions. [2023-12-16 17:28:22,299 INFO L78 Accepts]: Start accepts. Automaton has 22899 states and 38665 transitions. Word has length 105 [2023-12-16 17:28:22,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:22,300 INFO L495 AbstractCegarLoop]: Abstraction has 22899 states and 38665 transitions. [2023-12-16 17:28:22,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:22,300 INFO L276 IsEmpty]: Start isEmpty. Operand 22899 states and 38665 transitions. [2023-12-16 17:28:22,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-16 17:28:22,314 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:22,314 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:22,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-16 17:28:22,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:22,519 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:22,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:22,520 INFO L85 PathProgramCache]: Analyzing trace with hash -808279906, now seen corresponding path program 1 times [2023-12-16 17:28:22,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:22,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [145313396] [2023-12-16 17:28:22,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:22,520 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:22,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:22,521 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:28:22,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-16 17:28:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:22,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:28:22,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:22,768 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:28:22,768 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:22,768 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:22,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [145313396] [2023-12-16 17:28:22,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [145313396] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:22,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:22,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:28:22,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961437014] [2023-12-16 17:28:22,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:22,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:28:22,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:22,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:28:22,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:28:22,770 INFO L87 Difference]: Start difference. First operand 22899 states and 38665 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:24,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:24,297 INFO L93 Difference]: Finished difference Result 61472 states and 104243 transitions. [2023-12-16 17:28:24,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:28:24,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2023-12-16 17:28:24,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:24,538 INFO L225 Difference]: With dead ends: 61472 [2023-12-16 17:28:24,539 INFO L226 Difference]: Without dead ends: 41281 [2023-12-16 17:28:24,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:28:24,656 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 89 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:24,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 665 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:28:24,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41281 states. [2023-12-16 17:28:26,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41281 to 41271. [2023-12-16 17:28:26,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41271 states, 34243 states have (on average 1.611833075373069) internal successors, (55194), 34248 states have internal predecessors, (55194), 6993 states have call successors, (6993), 31 states have call predecessors, (6993), 34 states have return successors, (7327), 6991 states have call predecessors, (7327), 6991 states have call successors, (7327) [2023-12-16 17:28:26,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41271 states to 41271 states and 69514 transitions. [2023-12-16 17:28:26,601 INFO L78 Accepts]: Start accepts. Automaton has 41271 states and 69514 transitions. Word has length 106 [2023-12-16 17:28:26,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:26,601 INFO L495 AbstractCegarLoop]: Abstraction has 41271 states and 69514 transitions. [2023-12-16 17:28:26,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:26,601 INFO L276 IsEmpty]: Start isEmpty. Operand 41271 states and 69514 transitions. [2023-12-16 17:28:26,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-16 17:28:26,621 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:26,621 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:26,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-16 17:28:26,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:26,830 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:26,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:26,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1448755852, now seen corresponding path program 1 times [2023-12-16 17:28:26,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:26,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [676719669] [2023-12-16 17:28:26,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:26,831 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:26,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:26,832 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:28:26,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-16 17:28:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:26,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:28:27,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:27,033 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:28:27,033 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:27,033 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:27,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [676719669] [2023-12-16 17:28:27,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [676719669] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:27,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:27,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:28:27,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120198119] [2023-12-16 17:28:27,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:27,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:28:27,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:27,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:28:27,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:28:27,035 INFO L87 Difference]: Start difference. First operand 41271 states and 69514 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:29,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:29,877 INFO L93 Difference]: Finished difference Result 113807 states and 192320 transitions. [2023-12-16 17:28:29,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:28:29,879 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 107 [2023-12-16 17:28:29,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:30,122 INFO L225 Difference]: With dead ends: 113807 [2023-12-16 17:28:30,123 INFO L226 Difference]: Without dead ends: 76127 [2023-12-16 17:28:30,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:28:30,213 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 87 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:30,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 668 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:28:30,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76127 states. [2023-12-16 17:28:33,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76127 to 76117. [2023-12-16 17:28:34,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76117 states, 63569 states have (on average 1.606254620963048) internal successors, (102108), 63574 states have internal predecessors, (102108), 12513 states have call successors, (12513), 31 states have call predecessors, (12513), 34 states have return successors, (13121), 12511 states have call predecessors, (13121), 12511 states have call successors, (13121) [2023-12-16 17:28:34,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76117 states to 76117 states and 127742 transitions. [2023-12-16 17:28:34,420 INFO L78 Accepts]: Start accepts. Automaton has 76117 states and 127742 transitions. Word has length 107 [2023-12-16 17:28:34,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:34,420 INFO L495 AbstractCegarLoop]: Abstraction has 76117 states and 127742 transitions. [2023-12-16 17:28:34,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:34,421 INFO L276 IsEmpty]: Start isEmpty. Operand 76117 states and 127742 transitions. [2023-12-16 17:28:34,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-16 17:28:34,437 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:34,437 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:34,448 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2023-12-16 17:28:34,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:34,642 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:34,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:34,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1338051774, now seen corresponding path program 1 times [2023-12-16 17:28:34,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:34,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [413784072] [2023-12-16 17:28:34,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:34,643 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:34,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:34,644 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:28:34,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-16 17:28:35,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:35,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:28:35,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:35,042 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:28:35,042 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:35,042 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:35,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [413784072] [2023-12-16 17:28:35,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [413784072] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:35,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:35,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:28:35,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507446858] [2023-12-16 17:28:35,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:35,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:28:35,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:35,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:28:35,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:28:35,043 INFO L87 Difference]: Start difference. First operand 76117 states and 127742 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:39,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:39,474 INFO L93 Difference]: Finished difference Result 142768 states and 240031 transitions. [2023-12-16 17:28:39,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:28:39,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2023-12-16 17:28:39,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:39,997 INFO L225 Difference]: With dead ends: 142768 [2023-12-16 17:28:39,997 INFO L226 Difference]: Without dead ends: 142602 [2023-12-16 17:28:40,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:28:40,055 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 85 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:40,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 665 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:28:40,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142602 states. [2023-12-16 17:28:46,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142602 to 142592. [2023-12-16 17:28:46,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142592 states, 119910 states have (on average 1.5990909849053456) internal successors, (191747), 119915 states have internal predecessors, (191747), 22647 states have call successors, (22647), 31 states have call predecessors, (22647), 34 states have return successors, (23787), 22645 states have call predecessors, (23787), 22645 states have call successors, (23787) [2023-12-16 17:28:46,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142592 states to 142592 states and 238181 transitions. [2023-12-16 17:28:46,938 INFO L78 Accepts]: Start accepts. Automaton has 142592 states and 238181 transitions. Word has length 108 [2023-12-16 17:28:46,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:46,938 INFO L495 AbstractCegarLoop]: Abstraction has 142592 states and 238181 transitions. [2023-12-16 17:28:46,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:46,938 INFO L276 IsEmpty]: Start isEmpty. Operand 142592 states and 238181 transitions. [2023-12-16 17:28:46,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-16 17:28:46,954 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:46,954 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:46,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-16 17:28:47,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:47,160 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:47,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:47,161 INFO L85 PathProgramCache]: Analyzing trace with hash 301365195, now seen corresponding path program 1 times [2023-12-16 17:28:47,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:47,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1288830384] [2023-12-16 17:28:47,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:47,161 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:28:47,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:47,162 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:28:47,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-16 17:28:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:47,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-16 17:28:47,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:47,464 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 17:28:47,464 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:47,465 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:47,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1288830384] [2023-12-16 17:28:47,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1288830384] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:47,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:47,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 17:28:47,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822673574] [2023-12-16 17:28:47,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:47,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 17:28:47,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:47,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 17:28:47,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:28:47,466 INFO L87 Difference]: Start difference. First operand 142592 states and 238181 transitions. Second operand has 11 states, 10 states have (on average 7.9) internal successors, (79), 9 states have internal predecessors, (79), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2023-12-16 17:28:52,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:52,121 INFO L93 Difference]: Finished difference Result 142918 states and 238629 transitions. [2023-12-16 17:28:52,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 17:28:52,122 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.9) internal successors, (79), 9 states have internal predecessors, (79), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 109 [2023-12-16 17:28:52,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:52,824 INFO L225 Difference]: With dead ends: 142918 [2023-12-16 17:28:52,824 INFO L226 Difference]: Without dead ends: 142766 [2023-12-16 17:28:52,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2023-12-16 17:28:52,874 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 434 mSDsluCounter, 2713 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 3066 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:52,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 3066 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:28:52,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142766 states. [2023-12-16 17:28:58,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142766 to 142760. [2023-12-16 17:28:59,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142760 states, 120032 states have (on average 1.59884864036257) internal successors, (191913), 120039 states have internal predecessors, (191913), 22673 states have call successors, (22673), 45 states have call predecessors, (22673), 54 states have return successors, (23829), 22675 states have call predecessors, (23829), 22669 states have call successors, (23829) [2023-12-16 17:28:59,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142760 states to 142760 states and 238415 transitions. [2023-12-16 17:28:59,908 INFO L78 Accepts]: Start accepts. Automaton has 142760 states and 238415 transitions. Word has length 109 [2023-12-16 17:28:59,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:59,908 INFO L495 AbstractCegarLoop]: Abstraction has 142760 states and 238415 transitions. [2023-12-16 17:28:59,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.9) internal successors, (79), 9 states have internal predecessors, (79), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2023-12-16 17:28:59,908 INFO L276 IsEmpty]: Start isEmpty. Operand 142760 states and 238415 transitions. [2023-12-16 17:28:59,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-16 17:28:59,956 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:59,956 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:59,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-16 17:29:00,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:29:00,162 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:29:00,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:29:00,162 INFO L85 PathProgramCache]: Analyzing trace with hash -2094358062, now seen corresponding path program 1 times [2023-12-16 17:29:00,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:29:00,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487607831] [2023-12-16 17:29:00,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:29:00,163 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:29:00,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:29:00,173 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) [2023-12-16 17:29:00,208 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 [2023-12-16 17:29:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:29:00,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 17:29:00,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:29:00,402 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:29:00,403 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:29:00,403 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:29:00,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1487607831] [2023-12-16 17:29:00,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1487607831] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:29:00,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:29:00,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 17:29:00,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660019561] [2023-12-16 17:29:00,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:29:00,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 17:29:00,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:29:00,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 17:29:00,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 17:29:00,404 INFO L87 Difference]: Start difference. First operand 142760 states and 238415 transitions. Second operand has 9 states, 7 states have (on average 10.428571428571429) internal successors, (73), 8 states have internal predecessors, (73), 6 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-12-16 17:29:04,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:29:04,700 INFO L93 Difference]: Finished difference Result 143251 states and 239123 transitions. [2023-12-16 17:29:04,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:29:04,700 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 10.428571428571429) internal successors, (73), 8 states have internal predecessors, (73), 6 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 110 [2023-12-16 17:29:04,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:29:05,248 INFO L225 Difference]: With dead ends: 143251 [2023-12-16 17:29:05,248 INFO L226 Difference]: Without dead ends: 142816 [2023-12-16 17:29:05,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:29:05,303 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 135 mSDsluCounter, 2281 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 2609 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:29:05,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 2609 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:29:05,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142816 states. Received shutdown request... [2023-12-16 17:29:09,613 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:29:09,613 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:29:10,628 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 [2023-12-16 17:29:10,796 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 [2023-12-16 17:29:11,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142816 to 142808. [2023-12-16 17:29:11,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142808 states, 120070 states have (on average 1.5987424002665112) internal successors, (191961), 120079 states have internal predecessors, (191961), 22681 states have call successors, (22681), 49 states have call predecessors, (22681), 56 states have return successors, (23839), 22679 states have call predecessors, (23839), 22677 states have call successors, (23839) [2023-12-16 17:29:11,507 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:29:11,508 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 17:29:11,510 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:29:11,512 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:29:11,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:29:11 BoogieIcfgContainer [2023-12-16 17:29:11,513 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:29:11,514 INFO L158 Benchmark]: Toolchain (without parser) took 66113.74ms. Allocated memory was 373.3MB in the beginning and 7.9GB in the end (delta: 7.5GB). Free memory was 313.3MB in the beginning and 5.1GB in the end (delta: -4.8GB). Peak memory consumption was 3.0GB. Max. memory is 8.0GB. [2023-12-16 17:29:11,514 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 208.7MB. Free memory is still 156.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:29:11,514 INFO L158 Benchmark]: CACSL2BoogieTranslator took 716.83ms. Allocated memory is still 373.3MB. Free memory was 312.7MB in the beginning and 255.1MB in the end (delta: 57.7MB). Peak memory consumption was 57.7MB. Max. memory is 8.0GB. [2023-12-16 17:29:11,514 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.23ms. Allocated memory is still 373.3MB. Free memory was 255.1MB in the beginning and 249.8MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 17:29:11,514 INFO L158 Benchmark]: Boogie Preprocessor took 107.56ms. Allocated memory is still 373.3MB. Free memory was 249.8MB in the beginning and 244.1MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 17:29:11,514 INFO L158 Benchmark]: RCFGBuilder took 789.15ms. Allocated memory is still 373.3MB. Free memory was 244.1MB in the beginning and 266.2MB in the end (delta: -22.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-16 17:29:11,514 INFO L158 Benchmark]: TraceAbstraction took 64405.26ms. Allocated memory was 373.3MB in the beginning and 7.9GB in the end (delta: 7.5GB). Free memory was 265.2MB in the beginning and 5.1GB in the end (delta: -4.9GB). Peak memory consumption was 2.9GB. Max. memory is 8.0GB. [2023-12-16 17:29:11,515 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 208.7MB. Free memory is still 156.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 716.83ms. Allocated memory is still 373.3MB. Free memory was 312.7MB in the beginning and 255.1MB in the end (delta: 57.7MB). Peak memory consumption was 57.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 89.23ms. Allocated memory is still 373.3MB. Free memory was 255.1MB in the beginning and 249.8MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 107.56ms. Allocated memory is still 373.3MB. Free memory was 249.8MB in the beginning and 244.1MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 789.15ms. Allocated memory is still 373.3MB. Free memory was 244.1MB in the beginning and 266.2MB in the end (delta: -22.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 64405.26ms. Allocated memory was 373.3MB in the beginning and 7.9GB in the end (delta: 7.5GB). Free memory was 265.2MB in the beginning and 5.1GB in the end (delta: -4.9GB). Peak memory consumption was 2.9GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] - GenericResultAtLocation [Line: 66]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [66] - GenericResultAtLocation [Line: 295]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [295] - GenericResultAtLocation [Line: 661]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [661] - GenericResultAtLocation [Line: 1741]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1741] - GenericResultAtLocation [Line: 1790]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [1790] - GenericResultAtLocation [Line: 1812]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1812] - GenericResultAtLocation [Line: 1821]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1821] - GenericResultAtLocation [Line: 2233]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2233] - GenericResultAtLocation [Line: 2524]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2524] - GenericResultAtLocation [Line: 2753]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2753] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 1817]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1817). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 16 procedures, 234 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 64.4s, OverallIterations: 25, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 24.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3426 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3217 mSDsluCounter, 26534 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18055 mSDsCounter, 165 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1936 IncrementalHoareTripleChecker+Invalid, 2101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 165 mSolverCounterUnsat, 8479 mSDtfsCounter, 1936 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2458 GetRequests, 2371 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=142760occurred in iteration=24, InterpolantAutomatonStates: 116, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 29.1s AutomataMinimizationTime, 25 MinimizatonAttempts, 245 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 2359 NumberOfCodeBlocks, 2277 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 2428 ConstructedInterpolants, 0 QuantifiedInterpolants, 3411 SizeOfPredicates, 53 NumberOfNonLiveVariables, 11139 ConjunctsInSsa, 116 ConjunctsInUnsatCore, 26 InterpolantComputations, 24 PerfectInterpolantSequences, 773/777 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown