/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:48:48,359 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:48:48,401 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 05:48:48,405 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:48:48,405 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:48:48,419 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:48:48,419 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:48:48,420 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:48:48,420 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:48:48,420 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:48:48,421 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:48:48,421 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:48:48,421 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:48:48,422 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:48:48,422 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:48:48,422 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:48:48,422 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:48:48,423 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:48:48,423 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:48:48,423 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:48:48,423 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:48:48,424 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:48:48,424 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:48:48,424 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:48:48,425 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:48:48,425 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:48:48,425 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:48:48,425 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:48:48,425 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:48:48,426 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:48:48,426 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:48:48,426 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:48:48,426 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:48:48,427 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:48:48,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:48:48,427 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:48:48,427 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:48:48,427 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:48:48,428 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:48:48,428 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:48:48,428 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:48:48,428 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:48:48,428 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:48:48,429 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:48:48,429 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:48:48,429 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:48:48,429 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:48:48,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:48:48,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:48:48,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:48:48,648 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:48:48,649 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:48:48,650 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product24.cil.c [2023-12-25 05:48:49,863 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:48:50,121 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:48:50,121 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product24.cil.c [2023-12-25 05:48:50,134 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcb860b77/f41dab2237b1454bbd5ef765e5ba9229/FLAGfbe810287 [2023-12-25 05:48:50,144 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcb860b77/f41dab2237b1454bbd5ef765e5ba9229 [2023-12-25 05:48:50,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:48:50,146 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:48:50,147 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:48:50,147 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:48:50,150 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:48:50,151 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:48:50" (1/1) ... [2023-12-25 05:48:50,152 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57c4bd46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:48:50, skipping insertion in model container [2023-12-25 05:48:50,152 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:48:50" (1/1) ... [2023-12-25 05:48:50,205 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:48:50,500 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product24.cil.c[33676,33689] [2023-12-25 05:48:50,629 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:48:50,641 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:48:50,660 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:48:50,708 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product24.cil.c[33676,33689] [2023-12-25 05:48:50,767 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:48:50,779 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:48:50,786 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2023-12-25 05:48:50,787 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [277] [2023-12-25 05:48:50,788 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1357] [2023-12-25 05:48:50,788 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1375] [2023-12-25 05:48:50,788 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1424] [2023-12-25 05:48:50,788 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1433] [2023-12-25 05:48:50,788 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1799] [2023-12-25 05:48:50,788 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2211] [2023-12-25 05:48:50,788 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2503] [2023-12-25 05:48:50,789 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2530] [2023-12-25 05:48:50,789 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2629] [2023-12-25 05:48:50,833 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product24.cil.c[33676,33689] [2023-12-25 05:48:50,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:48:50,893 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:48:50,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:48:50 WrapperNode [2023-12-25 05:48:50,895 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:48:50,897 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:48:50,897 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:48:50,897 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:48:50,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:48:50" (1/1) ... [2023-12-25 05:48:50,947 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:48:50" (1/1) ... [2023-12-25 05:48:50,994 INFO L138 Inliner]: procedures = 132, calls = 193, calls flagged for inlining = 63, calls inlined = 58, statements flattened = 979 [2023-12-25 05:48:50,995 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:48:50,996 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:48:50,996 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:48:51,003 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:48:51,011 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:48:50" (1/1) ... [2023-12-25 05:48:51,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:48:50" (1/1) ... [2023-12-25 05:48:51,035 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:48:50" (1/1) ... [2023-12-25 05:48:51,062 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2023-12-25 05:48:51,062 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:48:50" (1/1) ... [2023-12-25 05:48:51,062 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:48:50" (1/1) ... [2023-12-25 05:48:51,078 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:48:50" (1/1) ... [2023-12-25 05:48:51,083 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:48:50" (1/1) ... [2023-12-25 05:48:51,087 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:48:50" (1/1) ... [2023-12-25 05:48:51,106 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:48:50" (1/1) ... [2023-12-25 05:48:51,112 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:48:51,113 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:48:51,113 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:48:51,113 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:48:51,114 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:48:50" (1/1) ... [2023-12-25 05:48:51,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:48:51,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:48:51,157 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-25 05:48:51,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-25 05:48:51,188 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-25 05:48:51,189 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-25 05:48:51,189 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-25 05:48:51,189 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-25 05:48:51,189 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-25 05:48:51,189 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-25 05:48:51,189 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-25 05:48:51,189 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-25 05:48:51,190 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-25 05:48:51,190 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-25 05:48:51,192 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-25 05:48:51,192 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-25 05:48:51,192 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-25 05:48:51,192 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-25 05:48:51,192 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-25 05:48:51,192 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-25 05:48:51,192 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-25 05:48:51,192 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-25 05:48:51,192 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-25 05:48:51,192 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-25 05:48:51,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:48:51,193 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-25 05:48:51,193 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-25 05:48:51,193 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-25 05:48:51,193 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-25 05:48:51,193 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-25 05:48:51,193 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-25 05:48:51,193 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-25 05:48:51,193 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-25 05:48:51,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:48:51,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:48:51,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:48:51,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:48:51,194 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-25 05:48:51,194 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-25 05:48:51,194 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-25 05:48:51,194 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-25 05:48:51,194 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-25 05:48:51,194 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-25 05:48:51,194 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-25 05:48:51,195 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-25 05:48:51,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:48:51,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:48:51,368 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:48:51,370 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:48:51,924 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:48:51,999 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:48:51,999 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:48:52,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:48:52 BoogieIcfgContainer [2023-12-25 05:48:52,000 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:48:52,002 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:48:52,002 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:48:52,005 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:48:52,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:48:50" (1/3) ... [2023-12-25 05:48:52,006 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d06f87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:48:52, skipping insertion in model container [2023-12-25 05:48:52,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:48:50" (2/3) ... [2023-12-25 05:48:52,006 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d06f87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:48:52, skipping insertion in model container [2023-12-25 05:48:52,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:48:52" (3/3) ... [2023-12-25 05:48:52,007 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product24.cil.c [2023-12-25 05:48:52,022 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:48:52,022 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:48:52,071 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:48:52,078 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;@6079281b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:48:52,078 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:48:52,083 INFO L276 IsEmpty]: Start isEmpty. Operand has 299 states, 231 states have (on average 1.593073593073593) internal successors, (368), 233 states have internal predecessors, (368), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-25 05:48:52,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-25 05:48:52,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:48:52,096 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:48:52,097 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:48:52,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:48:52,101 INFO L85 PathProgramCache]: Analyzing trace with hash -182342470, now seen corresponding path program 1 times [2023-12-25 05:48:52,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:48:52,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [676044390] [2023-12-25 05:48:52,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:48:52,126 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:52,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:48:52,129 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:48:52,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-25 05:48:52,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:48:52,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:48:52,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:48:52,530 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:48:52,530 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:48:52,531 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:48:52,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [676044390] [2023-12-25 05:48:52,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [676044390] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:48:52,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:48:52,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:48:52,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929437631] [2023-12-25 05:48:52,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:48:52,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:48:52,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:48:52,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:48:52,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:48:52,594 INFO L87 Difference]: Start difference. First operand has 299 states, 231 states have (on average 1.593073593073593) internal successors, (368), 233 states have internal predecessors, (368), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:48:52,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:48:52,679 INFO L93 Difference]: Finished difference Result 449 states and 684 transitions. [2023-12-25 05:48:52,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:48:52,681 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 86 [2023-12-25 05:48:52,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:48:52,690 INFO L225 Difference]: With dead ends: 449 [2023-12-25 05:48:52,690 INFO L226 Difference]: Without dead ends: 296 [2023-12-25 05:48:52,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:48:52,696 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:48:52,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 443 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:48:52,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2023-12-25 05:48:52,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2023-12-25 05:48:52,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 229 states have (on average 1.5764192139737991) internal successors, (361), 230 states have internal predecessors, (361), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-25 05:48:52,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 456 transitions. [2023-12-25 05:48:52,743 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 456 transitions. Word has length 86 [2023-12-25 05:48:52,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:48:52,744 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 456 transitions. [2023-12-25 05:48:52,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:48:52,744 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 456 transitions. [2023-12-25 05:48:52,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-25 05:48:52,750 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:48:52,750 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:48:52,756 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-25 05:48:52,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:52,957 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:48:52,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:48:52,957 INFO L85 PathProgramCache]: Analyzing trace with hash 486913082, now seen corresponding path program 1 times [2023-12-25 05:48:52,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:48:52,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [112243014] [2023-12-25 05:48:52,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:48:52,958 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:52,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:48:52,964 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:48:53,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-25 05:48:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:48:53,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:48:53,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:48:53,336 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-25 05:48:53,336 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:48:53,336 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:48:53,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [112243014] [2023-12-25 05:48:53,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [112243014] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:48:53,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:48:53,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:48:53,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438712086] [2023-12-25 05:48:53,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:48:53,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:48:53,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:48:53,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:48:53,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:48:53,339 INFO L87 Difference]: Start difference. First operand 296 states and 456 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:48:53,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:48:53,467 INFO L93 Difference]: Finished difference Result 587 states and 906 transitions. [2023-12-25 05:48:53,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:48:53,467 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 87 [2023-12-25 05:48:53,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:48:53,473 INFO L225 Difference]: With dead ends: 587 [2023-12-25 05:48:53,473 INFO L226 Difference]: Without dead ends: 298 [2023-12-25 05:48:53,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:48:53,476 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 8 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:48:53,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1713 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:48:53,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-25 05:48:53,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2023-12-25 05:48:53,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 230 states have (on average 1.5739130434782609) internal successors, (362), 232 states have internal predecessors, (362), 48 states have call successors, (48), 18 states have call predecessors, (48), 19 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) [2023-12-25 05:48:53,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 459 transitions. [2023-12-25 05:48:53,507 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 459 transitions. Word has length 87 [2023-12-25 05:48:53,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:48:53,507 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 459 transitions. [2023-12-25 05:48:53,507 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:48:53,508 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 459 transitions. [2023-12-25 05:48:53,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-25 05:48:53,509 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:48:53,510 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:48:53,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-25 05:48:53,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:53,717 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:48:53,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:48:53,717 INFO L85 PathProgramCache]: Analyzing trace with hash 93406322, now seen corresponding path program 1 times [2023-12-25 05:48:53,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:48:53,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [98513907] [2023-12-25 05:48:53,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:48:53,718 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:53,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:48:53,720 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:48:53,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-25 05:48:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:48:53,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:48:53,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:48:54,006 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-25 05:48:54,006 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:48:54,006 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:48:54,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [98513907] [2023-12-25 05:48:54,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [98513907] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:48:54,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:48:54,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:48:54,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512272268] [2023-12-25 05:48:54,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:48:54,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:48:54,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:48:54,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:48:54,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:48:54,008 INFO L87 Difference]: Start difference. First operand 298 states and 459 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:48:54,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:48:54,146 INFO L93 Difference]: Finished difference Result 589 states and 910 transitions. [2023-12-25 05:48:54,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:48:54,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 88 [2023-12-25 05:48:54,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:48:54,150 INFO L225 Difference]: With dead ends: 589 [2023-12-25 05:48:54,150 INFO L226 Difference]: Without dead ends: 300 [2023-12-25 05:48:54,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:48:54,152 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 8 mSDsluCounter, 1270 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:48:54,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1699 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:48:54,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-12-25 05:48:54,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2023-12-25 05:48:54,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 231 states have (on average 1.5714285714285714) internal successors, (363), 234 states have internal predecessors, (363), 48 states have call successors, (48), 18 states have call predecessors, (48), 20 states have return successors, (53), 47 states have call predecessors, (53), 47 states have call successors, (53) [2023-12-25 05:48:54,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 464 transitions. [2023-12-25 05:48:54,166 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 464 transitions. Word has length 88 [2023-12-25 05:48:54,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:48:54,167 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 464 transitions. [2023-12-25 05:48:54,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:48:54,167 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 464 transitions. [2023-12-25 05:48:54,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-25 05:48:54,169 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:48:54,169 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:48:54,177 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 [2023-12-25 05:48:54,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:54,377 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:48:54,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:48:54,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1325113966, now seen corresponding path program 1 times [2023-12-25 05:48:54,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:48:54,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [311164397] [2023-12-25 05:48:54,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:48:54,378 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:54,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:48:54,380 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:48:54,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-25 05:48:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:48:54,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:48:54,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:48:54,602 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-25 05:48:54,602 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:48:54,603 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:48:54,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [311164397] [2023-12-25 05:48:54,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [311164397] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:48:54,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:48:54,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:48:54,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135792209] [2023-12-25 05:48:54,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:48:54,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:48:54,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:48:54,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:48:54,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:48:54,604 INFO L87 Difference]: Start difference. First operand 300 states and 464 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:48:54,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:48:54,697 INFO L93 Difference]: Finished difference Result 581 states and 900 transitions. [2023-12-25 05:48:54,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:48:54,697 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 89 [2023-12-25 05:48:54,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:48:54,699 INFO L225 Difference]: With dead ends: 581 [2023-12-25 05:48:54,699 INFO L226 Difference]: Without dead ends: 300 [2023-12-25 05:48:54,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:48:54,701 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 8 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:48:54,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1713 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:48:54,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-12-25 05:48:54,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2023-12-25 05:48:54,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 231 states have (on average 1.5714285714285714) internal successors, (363), 234 states have internal predecessors, (363), 48 states have call successors, (48), 18 states have call predecessors, (48), 20 states have return successors, (52), 47 states have call predecessors, (52), 47 states have call successors, (52) [2023-12-25 05:48:54,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 463 transitions. [2023-12-25 05:48:54,711 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 463 transitions. Word has length 89 [2023-12-25 05:48:54,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:48:54,711 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 463 transitions. [2023-12-25 05:48:54,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:48:54,712 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 463 transitions. [2023-12-25 05:48:54,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-25 05:48:54,713 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:48:54,713 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:48:54,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-25 05:48:54,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:54,920 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:48:54,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:48:54,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1724885016, now seen corresponding path program 2 times [2023-12-25 05:48:54,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:48:54,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1533280405] [2023-12-25 05:48:54,921 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 05:48:54,921 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:54,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:48:54,922 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:48:54,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-25 05:48:55,072 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 05:48:55,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 05:48:55,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:48:55,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:48:55,201 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-25 05:48:55,202 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:48:55,202 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:48:55,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1533280405] [2023-12-25 05:48:55,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1533280405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:48:55,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:48:55,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:48:55,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266005809] [2023-12-25 05:48:55,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:48:55,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:48:55,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:48:55,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:48:55,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:48:55,204 INFO L87 Difference]: Start difference. First operand 300 states and 463 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:48:55,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:48:55,589 INFO L93 Difference]: Finished difference Result 584 states and 904 transitions. [2023-12-25 05:48:55,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:48:55,590 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 90 [2023-12-25 05:48:55,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:48:55,593 INFO L225 Difference]: With dead ends: 584 [2023-12-25 05:48:55,593 INFO L226 Difference]: Without dead ends: 582 [2023-12-25 05:48:55,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-25 05:48:55,594 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 397 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 2846 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:48:55,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 2846 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 05:48:55,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2023-12-25 05:48:55,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 579. [2023-12-25 05:48:55,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 450 states have (on average 1.58) internal successors, (711), 453 states have internal predecessors, (711), 90 states have call successors, (90), 35 states have call predecessors, (90), 38 states have return successors, (99), 90 states have call predecessors, (99), 88 states have call successors, (99) [2023-12-25 05:48:55,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 900 transitions. [2023-12-25 05:48:55,620 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 900 transitions. Word has length 90 [2023-12-25 05:48:55,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:48:55,659 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 900 transitions. [2023-12-25 05:48:55,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:48:55,660 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 900 transitions. [2023-12-25 05:48:55,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-25 05:48:55,662 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:48:55,662 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:48:55,668 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-25 05:48:55,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:55,866 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:48:55,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:48:55,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1691059951, now seen corresponding path program 1 times [2023-12-25 05:48:55,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:48:55,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1879871394] [2023-12-25 05:48:55,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:48:55,868 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:55,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:48:55,885 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:48:55,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-25 05:48:56,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:48:56,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:48:56,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:48:56,136 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-25 05:48:56,137 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:48:56,137 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:48:56,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1879871394] [2023-12-25 05:48:56,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1879871394] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:48:56,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:48:56,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:48:56,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706335828] [2023-12-25 05:48:56,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:48:56,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:48:56,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:48:56,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:48:56,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:48:56,139 INFO L87 Difference]: Start difference. First operand 579 states and 900 transitions. Second operand has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:48:56,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:48:56,243 INFO L93 Difference]: Finished difference Result 1141 states and 1777 transitions. [2023-12-25 05:48:56,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:48:56,243 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 91 [2023-12-25 05:48:56,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:48:56,246 INFO L225 Difference]: With dead ends: 1141 [2023-12-25 05:48:56,246 INFO L226 Difference]: Without dead ends: 581 [2023-12-25 05:48:56,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:48:56,249 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 6 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1715 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 [2023-12-25 05:48:56,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1715 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:48:56,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2023-12-25 05:48:56,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 581. [2023-12-25 05:48:56,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 451 states have (on average 1.5787139689578713) internal successors, (712), 455 states have internal predecessors, (712), 90 states have call successors, (90), 35 states have call predecessors, (90), 39 states have return successors, (101), 90 states have call predecessors, (101), 88 states have call successors, (101) [2023-12-25 05:48:56,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 903 transitions. [2023-12-25 05:48:56,269 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 903 transitions. Word has length 91 [2023-12-25 05:48:56,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:48:56,269 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 903 transitions. [2023-12-25 05:48:56,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:48:56,270 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 903 transitions. [2023-12-25 05:48:56,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-25 05:48:56,271 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:48:56,272 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:48:56,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-25 05:48:56,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:56,478 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:48:56,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:48:56,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1180577474, now seen corresponding path program 1 times [2023-12-25 05:48:56,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:48:56,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [908047315] [2023-12-25 05:48:56,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:48:56,479 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:56,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:48:56,480 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:48:56,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-25 05:48:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:48:56,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:48:56,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:48:56,689 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-25 05:48:56,689 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:48:56,690 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:48:56,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [908047315] [2023-12-25 05:48:56,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [908047315] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:48:56,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:48:56,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:48:56,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814549904] [2023-12-25 05:48:56,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:48:56,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:48:56,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:48:56,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:48:56,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:48:56,692 INFO L87 Difference]: Start difference. First operand 581 states and 903 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:48:56,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:48:56,793 INFO L93 Difference]: Finished difference Result 859 states and 1334 transitions. [2023-12-25 05:48:56,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:48:56,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 92 [2023-12-25 05:48:56,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:48:56,795 INFO L225 Difference]: With dead ends: 859 [2023-12-25 05:48:56,796 INFO L226 Difference]: Without dead ends: 302 [2023-12-25 05:48:56,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:48:56,797 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 8 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:48:56,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1700 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:48:56,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2023-12-25 05:48:56,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2023-12-25 05:48:56,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 232 states have (on average 1.5689655172413792) internal successors, (364), 236 states have internal predecessors, (364), 48 states have call successors, (48), 18 states have call predecessors, (48), 21 states have return successors, (53), 47 states have call predecessors, (53), 47 states have call successors, (53) [2023-12-25 05:48:56,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 465 transitions. [2023-12-25 05:48:56,805 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 465 transitions. Word has length 92 [2023-12-25 05:48:56,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:48:56,805 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 465 transitions. [2023-12-25 05:48:56,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:48:56,805 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 465 transitions. [2023-12-25 05:48:56,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-25 05:48:56,806 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:48:56,806 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:48:56,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-25 05:48:57,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:57,012 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:48:57,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:48:57,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1379350551, now seen corresponding path program 1 times [2023-12-25 05:48:57,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:48:57,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1765961332] [2023-12-25 05:48:57,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:48:57,013 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:57,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:48:57,014 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:48:57,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-25 05:48:57,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:48:57,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:48:57,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:48:57,244 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-25 05:48:57,245 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:48:57,245 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:48:57,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1765961332] [2023-12-25 05:48:57,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1765961332] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:48:57,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:48:57,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:48:57,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467798874] [2023-12-25 05:48:57,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:48:57,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:48:57,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:48:57,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:48:57,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:48:57,246 INFO L87 Difference]: Start difference. First operand 302 states and 465 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:48:57,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:48:57,349 INFO L93 Difference]: Finished difference Result 583 states and 903 transitions. [2023-12-25 05:48:57,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:48:57,349 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 92 [2023-12-25 05:48:57,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:48:57,351 INFO L225 Difference]: With dead ends: 583 [2023-12-25 05:48:57,351 INFO L226 Difference]: Without dead ends: 304 [2023-12-25 05:48:57,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:48:57,352 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 6 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:48:57,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1702 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:48:57,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2023-12-25 05:48:57,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2023-12-25 05:48:57,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 233 states have (on average 1.5665236051502145) internal successors, (365), 238 states have internal predecessors, (365), 48 states have call successors, (48), 18 states have call predecessors, (48), 22 states have return successors, (57), 47 states have call predecessors, (57), 47 states have call successors, (57) [2023-12-25 05:48:57,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 470 transitions. [2023-12-25 05:48:57,360 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 470 transitions. Word has length 92 [2023-12-25 05:48:57,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:48:57,361 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 470 transitions. [2023-12-25 05:48:57,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:48:57,361 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 470 transitions. [2023-12-25 05:48:57,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-25 05:48:57,362 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:48:57,362 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:48:57,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-25 05:48:57,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:57,569 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:48:57,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:48:57,569 INFO L85 PathProgramCache]: Analyzing trace with hash -787996772, now seen corresponding path program 1 times [2023-12-25 05:48:57,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:48:57,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485937571] [2023-12-25 05:48:57,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:48:57,570 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:57,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:48:57,571 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:48:57,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-25 05:48:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:48:57,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:48:57,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:48:57,756 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:48:57,756 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:48:57,756 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:48:57,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485937571] [2023-12-25 05:48:57,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485937571] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:48:57,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:48:57,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:48:57,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983635386] [2023-12-25 05:48:57,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:48:57,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:48:57,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:48:57,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:48:57,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:48:57,758 INFO L87 Difference]: Start difference. First operand 304 states and 470 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:48:57,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:48:57,792 INFO L93 Difference]: Finished difference Result 453 states and 685 transitions. [2023-12-25 05:48:57,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:48:57,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 93 [2023-12-25 05:48:57,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:48:57,794 INFO L225 Difference]: With dead ends: 453 [2023-12-25 05:48:57,794 INFO L226 Difference]: Without dead ends: 306 [2023-12-25 05:48:57,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:48:57,795 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 0 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:48:57,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 879 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:48:57,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2023-12-25 05:48:57,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2023-12-25 05:48:57,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 235 states have (on average 1.5617021276595744) internal successors, (367), 240 states have internal predecessors, (367), 48 states have call successors, (48), 18 states have call predecessors, (48), 22 states have return successors, (57), 47 states have call predecessors, (57), 47 states have call successors, (57) [2023-12-25 05:48:57,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 472 transitions. [2023-12-25 05:48:57,803 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 472 transitions. Word has length 93 [2023-12-25 05:48:57,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:48:57,803 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 472 transitions. [2023-12-25 05:48:57,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:48:57,803 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 472 transitions. [2023-12-25 05:48:57,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-25 05:48:57,804 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:48:57,804 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:48:57,810 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 [2023-12-25 05:48:58,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:58,010 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:48:58,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:48:58,010 INFO L85 PathProgramCache]: Analyzing trace with hash 2137427515, now seen corresponding path program 1 times [2023-12-25 05:48:58,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:48:58,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [425701254] [2023-12-25 05:48:58,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:48:58,011 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 [2023-12-25 05:48:58,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:48:58,012 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:48:58,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-25 05:48:58,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:48:58,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:48:58,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:48:58,225 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:48:58,225 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:48:58,225 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:48:58,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [425701254] [2023-12-25 05:48:58,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [425701254] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:48:58,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:48:58,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:48:58,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538659857] [2023-12-25 05:48:58,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:48:58,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:48:58,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:48:58,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:48:58,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:48:58,227 INFO L87 Difference]: Start difference. First operand 306 states and 472 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:48:58,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:48:58,267 INFO L93 Difference]: Finished difference Result 642 states and 1004 transitions. [2023-12-25 05:48:58,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:48:58,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 100 [2023-12-25 05:48:58,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:48:58,269 INFO L225 Difference]: With dead ends: 642 [2023-12-25 05:48:58,269 INFO L226 Difference]: Without dead ends: 362 [2023-12-25 05:48:58,270 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 [2023-12-25 05:48:58,270 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 109 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:48:58,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 854 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:48:58,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2023-12-25 05:48:58,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 357. [2023-12-25 05:48:58,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 275 states have (on average 1.5781818181818181) internal successors, (434), 280 states have internal predecessors, (434), 59 states have call successors, (59), 18 states have call predecessors, (59), 22 states have return successors, (70), 58 states have call predecessors, (70), 58 states have call successors, (70) [2023-12-25 05:48:58,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 563 transitions. [2023-12-25 05:48:58,279 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 563 transitions. Word has length 100 [2023-12-25 05:48:58,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:48:58,279 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 563 transitions. [2023-12-25 05:48:58,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:48:58,280 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 563 transitions. [2023-12-25 05:48:58,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-25 05:48:58,281 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:48:58,281 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:48:58,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-25 05:48:58,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:58,487 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:48:58,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:48:58,488 INFO L85 PathProgramCache]: Analyzing trace with hash 985672957, now seen corresponding path program 1 times [2023-12-25 05:48:58,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:48:58,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365763526] [2023-12-25 05:48:58,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:48:58,488 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:58,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:48:58,489 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:48:58,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-25 05:48:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:48:58,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:48:58,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:48:58,762 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-25 05:48:58,762 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:48:58,763 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:48:58,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [365763526] [2023-12-25 05:48:58,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [365763526] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:48:58,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:48:58,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:48:58,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976902210] [2023-12-25 05:48:58,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:48:58,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:48:58,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:48:58,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:48:58,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:48:58,764 INFO L87 Difference]: Start difference. First operand 357 states and 563 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:48:58,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:48:58,856 INFO L93 Difference]: Finished difference Result 706 states and 1104 transitions. [2023-12-25 05:48:58,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:48:58,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 101 [2023-12-25 05:48:58,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:48:58,859 INFO L225 Difference]: With dead ends: 706 [2023-12-25 05:48:58,859 INFO L226 Difference]: Without dead ends: 373 [2023-12-25 05:48:58,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:48:58,861 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 417 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:48:58,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 900 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:48:58,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2023-12-25 05:48:58,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 365. [2023-12-25 05:48:58,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 282 states have (on average 1.5602836879432624) internal successors, (440), 286 states have internal predecessors, (440), 59 states have call successors, (59), 20 states have call predecessors, (59), 23 states have return successors, (66), 58 states have call predecessors, (66), 58 states have call successors, (66) [2023-12-25 05:48:58,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 565 transitions. [2023-12-25 05:48:58,872 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 565 transitions. Word has length 101 [2023-12-25 05:48:58,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:48:58,873 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 565 transitions. [2023-12-25 05:48:58,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:48:58,873 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 565 transitions. [2023-12-25 05:48:58,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 05:48:58,874 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:48:58,874 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:48:58,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-25 05:48:59,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:59,080 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:48:59,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:48:59,081 INFO L85 PathProgramCache]: Analyzing trace with hash 417715876, now seen corresponding path program 1 times [2023-12-25 05:48:59,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:48:59,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2025741155] [2023-12-25 05:48:59,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:48:59,082 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:59,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:48:59,083 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:48:59,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-25 05:48:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:48:59,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:48:59,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:48:59,287 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:48:59,287 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:48:59,335 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:48:59,335 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:48:59,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2025741155] [2023-12-25 05:48:59,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2025741155] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:48:59,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:48:59,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-25 05:48:59,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044995810] [2023-12-25 05:48:59,336 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:48:59,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:48:59,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:48:59,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:48:59,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:48:59,337 INFO L87 Difference]: Start difference. First operand 365 states and 565 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:48:59,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:48:59,546 INFO L93 Difference]: Finished difference Result 857 states and 1379 transitions. [2023-12-25 05:48:59,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:48:59,546 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 102 [2023-12-25 05:48:59,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:48:59,550 INFO L225 Difference]: With dead ends: 857 [2023-12-25 05:48:59,550 INFO L226 Difference]: Without dead ends: 710 [2023-12-25 05:48:59,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:48:59,551 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 397 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1973 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:48:59,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 1973 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:48:59,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2023-12-25 05:48:59,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 695. [2023-12-25 05:48:59,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 548 states have (on average 1.6058394160583942) internal successors, (880), 552 states have internal predecessors, (880), 123 states have call successors, (123), 20 states have call predecessors, (123), 23 states have return successors, (140), 122 states have call predecessors, (140), 122 states have call successors, (140) [2023-12-25 05:48:59,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 1143 transitions. [2023-12-25 05:48:59,575 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 1143 transitions. Word has length 102 [2023-12-25 05:48:59,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:48:59,575 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 1143 transitions. [2023-12-25 05:48:59,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:48:59,576 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 1143 transitions. [2023-12-25 05:48:59,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-25 05:48:59,578 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:48:59,578 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:48:59,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-25 05:48:59,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:59,784 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:48:59,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:48:59,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1506499152, now seen corresponding path program 1 times [2023-12-25 05:48:59,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:48:59,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1189245969] [2023-12-25 05:48:59,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:48:59,786 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:59,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:48:59,804 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:48:59,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-25 05:48:59,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:00,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:49:00,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:00,014 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:49:00,014 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:00,014 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:00,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1189245969] [2023-12-25 05:49:00,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1189245969] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:00,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:00,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:49:00,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573949572] [2023-12-25 05:49:00,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:00,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:49:00,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:00,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:49:00,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:00,015 INFO L87 Difference]: Start difference. First operand 695 states and 1143 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:49:00,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:00,096 INFO L93 Difference]: Finished difference Result 1631 states and 2734 transitions. [2023-12-25 05:49:00,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:49:00,097 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2023-12-25 05:49:00,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:00,101 INFO L225 Difference]: With dead ends: 1631 [2023-12-25 05:49:00,102 INFO L226 Difference]: Without dead ends: 1012 [2023-12-25 05:49:00,104 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 [2023-12-25 05:49:00,104 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 103 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:00,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 884 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:49:00,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2023-12-25 05:49:00,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1007. [2023-12-25 05:49:00,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 796 states have (on average 1.6231155778894473) internal successors, (1292), 800 states have internal predecessors, (1292), 187 states have call successors, (187), 20 states have call predecessors, (187), 23 states have return successors, (214), 186 states have call predecessors, (214), 186 states have call successors, (214) [2023-12-25 05:49:00,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1693 transitions. [2023-12-25 05:49:00,143 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1693 transitions. Word has length 105 [2023-12-25 05:49:00,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:00,144 INFO L495 AbstractCegarLoop]: Abstraction has 1007 states and 1693 transitions. [2023-12-25 05:49:00,144 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:49:00,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1693 transitions. [2023-12-25 05:49:00,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-25 05:49:00,148 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:00,148 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:49:00,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-25 05:49:00,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:49:00,354 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:00,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:00,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1039686097, now seen corresponding path program 1 times [2023-12-25 05:49:00,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:00,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1940425126] [2023-12-25 05:49:00,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:00,355 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:49:00,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:00,356 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:49:00,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-25 05:49:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:00,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:49:00,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:00,578 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:49:00,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:00,578 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:00,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1940425126] [2023-12-25 05:49:00,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1940425126] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:00,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:00,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:49:00,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647114572] [2023-12-25 05:49:00,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:00,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:49:00,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:00,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:49:00,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:00,580 INFO L87 Difference]: Start difference. First operand 1007 states and 1693 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:49:00,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:00,653 INFO L93 Difference]: Finished difference Result 2395 states and 4051 transitions. [2023-12-25 05:49:00,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:49:00,653 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 106 [2023-12-25 05:49:00,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:00,660 INFO L225 Difference]: With dead ends: 2395 [2023-12-25 05:49:00,660 INFO L226 Difference]: Without dead ends: 1514 [2023-12-25 05:49:00,662 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 [2023-12-25 05:49:00,663 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 101 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:00,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 867 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:49:00,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2023-12-25 05:49:00,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1509. [2023-12-25 05:49:00,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1203 states have (on average 1.626766417290108) internal successors, (1957), 1207 states have internal predecessors, (1957), 282 states have call successors, (282), 20 states have call predecessors, (282), 23 states have return successors, (309), 281 states have call predecessors, (309), 281 states have call successors, (309) [2023-12-25 05:49:00,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 2548 transitions. [2023-12-25 05:49:00,727 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 2548 transitions. Word has length 106 [2023-12-25 05:49:00,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:00,727 INFO L495 AbstractCegarLoop]: Abstraction has 1509 states and 2548 transitions. [2023-12-25 05:49:00,727 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:49:00,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 2548 transitions. [2023-12-25 05:49:00,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-25 05:49:00,733 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:00,733 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:49:00,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-25 05:49:00,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:49:00,942 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:00,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:00,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1287854142, now seen corresponding path program 1 times [2023-12-25 05:49:00,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:00,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881804774] [2023-12-25 05:49:00,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:00,943 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:49:00,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:00,944 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:49:00,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-25 05:49:01,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:01,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:49:01,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:01,173 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:49:01,173 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:01,173 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:01,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881804774] [2023-12-25 05:49:01,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1881804774] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:01,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:01,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:49:01,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295838070] [2023-12-25 05:49:01,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:01,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:49:01,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:01,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:49:01,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:01,175 INFO L87 Difference]: Start difference. First operand 1509 states and 2548 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:49:01,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:01,283 INFO L93 Difference]: Finished difference Result 3530 states and 6009 transitions. [2023-12-25 05:49:01,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:49:01,283 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2023-12-25 05:49:01,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:01,293 INFO L225 Difference]: With dead ends: 3530 [2023-12-25 05:49:01,293 INFO L226 Difference]: Without dead ends: 2273 [2023-12-25 05:49:01,299 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 [2023-12-25 05:49:01,300 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 99 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:01,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 862 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:49:01,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2023-12-25 05:49:01,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 2268. [2023-12-25 05:49:01,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2268 states, 1839 states have (on average 1.6302338227297444) internal successors, (2998), 1843 states have internal predecessors, (2998), 405 states have call successors, (405), 20 states have call predecessors, (405), 23 states have return successors, (448), 404 states have call predecessors, (448), 404 states have call successors, (448) [2023-12-25 05:49:01,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2268 states to 2268 states and 3851 transitions. [2023-12-25 05:49:01,408 INFO L78 Accepts]: Start accepts. Automaton has 2268 states and 3851 transitions. Word has length 107 [2023-12-25 05:49:01,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:01,409 INFO L495 AbstractCegarLoop]: Abstraction has 2268 states and 3851 transitions. [2023-12-25 05:49:01,409 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:49:01,409 INFO L276 IsEmpty]: Start isEmpty. Operand 2268 states and 3851 transitions. [2023-12-25 05:49:01,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-25 05:49:01,415 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:01,415 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:49:01,439 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 (16)] Ended with exit code 0 [2023-12-25 05:49:01,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:49:01,621 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:01,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:01,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1093390034, now seen corresponding path program 1 times [2023-12-25 05:49:01,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:01,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2087421179] [2023-12-25 05:49:01,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:01,622 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:49:01,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:01,624 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:49:01,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-25 05:49:01,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:01,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:49:01,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:01,824 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:49:01,824 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:01,825 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:01,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2087421179] [2023-12-25 05:49:01,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2087421179] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:01,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:01,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:49:01,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559759694] [2023-12-25 05:49:01,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:01,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:49:01,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:01,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:49:01,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:01,826 INFO L87 Difference]: Start difference. First operand 2268 states and 3851 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:49:01,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:01,952 INFO L93 Difference]: Finished difference Result 5294 states and 9056 transitions. [2023-12-25 05:49:01,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:49:01,953 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2023-12-25 05:49:01,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:01,967 INFO L225 Difference]: With dead ends: 5294 [2023-12-25 05:49:01,967 INFO L226 Difference]: Without dead ends: 3484 [2023-12-25 05:49:01,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:01,972 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 97 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:01,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 862 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:49:01,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3484 states. [2023-12-25 05:49:02,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3484 to 3479. [2023-12-25 05:49:02,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3479 states, 2871 states have (on average 1.6325322187391154) internal successors, (4687), 2875 states have internal predecessors, (4687), 584 states have call successors, (584), 20 states have call predecessors, (584), 23 states have return successors, (653), 583 states have call predecessors, (653), 583 states have call successors, (653) [2023-12-25 05:49:02,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3479 states to 3479 states and 5924 transitions. [2023-12-25 05:49:02,156 INFO L78 Accepts]: Start accepts. Automaton has 3479 states and 5924 transitions. Word has length 108 [2023-12-25 05:49:02,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:02,158 INFO L495 AbstractCegarLoop]: Abstraction has 3479 states and 5924 transitions. [2023-12-25 05:49:02,158 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:49:02,158 INFO L276 IsEmpty]: Start isEmpty. Operand 3479 states and 5924 transitions. [2023-12-25 05:49:02,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-25 05:49:02,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:02,166 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:49:02,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-25 05:49:02,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:49:02,372 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:02,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:02,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1110553638, now seen corresponding path program 1 times [2023-12-25 05:49:02,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:02,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1253232500] [2023-12-25 05:49:02,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:02,373 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:49:02,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:02,375 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:49:02,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-25 05:49:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:02,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:49:02,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:02,590 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:49:02,590 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:02,590 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:02,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1253232500] [2023-12-25 05:49:02,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1253232500] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:02,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:02,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:49:02,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024510670] [2023-12-25 05:49:02,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:02,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:49:02,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:02,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:49:02,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:02,592 INFO L87 Difference]: Start difference. First operand 3479 states and 5924 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:49:02,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:02,808 INFO L93 Difference]: Finished difference Result 8242 states and 14103 transitions. [2023-12-25 05:49:02,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:49:02,809 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2023-12-25 05:49:02,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:02,829 INFO L225 Difference]: With dead ends: 8242 [2023-12-25 05:49:02,829 INFO L226 Difference]: Without dead ends: 5520 [2023-12-25 05:49:02,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:02,839 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 95 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:02,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 875 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:49:02,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5520 states. [2023-12-25 05:49:03,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5520 to 5515. [2023-12-25 05:49:03,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5515 states, 4531 states have (on average 1.6208342529242992) internal successors, (7344), 4535 states have internal predecessors, (7344), 960 states have call successors, (960), 20 states have call predecessors, (960), 23 states have return successors, (1073), 959 states have call predecessors, (1073), 959 states have call successors, (1073) [2023-12-25 05:49:03,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5515 states to 5515 states and 9377 transitions. [2023-12-25 05:49:03,133 INFO L78 Accepts]: Start accepts. Automaton has 5515 states and 9377 transitions. Word has length 109 [2023-12-25 05:49:03,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:03,133 INFO L495 AbstractCegarLoop]: Abstraction has 5515 states and 9377 transitions. [2023-12-25 05:49:03,134 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:49:03,134 INFO L276 IsEmpty]: Start isEmpty. Operand 5515 states and 9377 transitions. [2023-12-25 05:49:03,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-25 05:49:03,146 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:03,146 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:49:03,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-25 05:49:03,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:49:03,353 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:03,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:03,353 INFO L85 PathProgramCache]: Analyzing trace with hash 656964406, now seen corresponding path program 1 times [2023-12-25 05:49:03,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:03,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [925931619] [2023-12-25 05:49:03,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:03,354 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:49:03,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:03,370 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:49:03,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-25 05:49:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:03,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:49:03,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:03,570 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:49:03,571 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:03,571 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:03,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [925931619] [2023-12-25 05:49:03,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [925931619] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:03,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:03,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:49:03,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313534314] [2023-12-25 05:49:03,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:03,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:49:03,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:03,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:49:03,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:03,574 INFO L87 Difference]: Start difference. First operand 5515 states and 9377 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:49:03,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:03,869 INFO L93 Difference]: Finished difference Result 13547 states and 23181 transitions. [2023-12-25 05:49:03,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:49:03,870 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 110 [2023-12-25 05:49:03,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:03,918 INFO L225 Difference]: With dead ends: 13547 [2023-12-25 05:49:03,918 INFO L226 Difference]: Without dead ends: 9170 [2023-12-25 05:49:03,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:03,933 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 93 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:03,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 867 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:49:03,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9170 states. [2023-12-25 05:49:04,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9170 to 9165. [2023-12-25 05:49:04,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9165 states, 7575 states have (on average 1.618085808580858) internal successors, (12257), 7579 states have internal predecessors, (12257), 1566 states have call successors, (1566), 20 states have call predecessors, (1566), 23 states have return successors, (1757), 1565 states have call predecessors, (1757), 1565 states have call successors, (1757) [2023-12-25 05:49:04,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9165 states to 9165 states and 15580 transitions. [2023-12-25 05:49:04,360 INFO L78 Accepts]: Start accepts. Automaton has 9165 states and 15580 transitions. Word has length 110 [2023-12-25 05:49:04,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:04,361 INFO L495 AbstractCegarLoop]: Abstraction has 9165 states and 15580 transitions. [2023-12-25 05:49:04,361 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:49:04,361 INFO L276 IsEmpty]: Start isEmpty. Operand 9165 states and 15580 transitions. [2023-12-25 05:49:04,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 05:49:04,376 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:04,376 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:49:04,384 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-12-25 05:49:04,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:49:04,585 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:04,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:04,585 INFO L85 PathProgramCache]: Analyzing trace with hash 388439080, now seen corresponding path program 1 times [2023-12-25 05:49:04,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:04,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1969018816] [2023-12-25 05:49:04,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:04,586 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:49:04,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:04,595 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:49:04,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-25 05:49:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:04,799 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:49:04,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:04,827 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:49:04,827 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:04,828 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:04,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1969018816] [2023-12-25 05:49:04,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1969018816] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:04,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:04,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:49:04,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423559873] [2023-12-25 05:49:04,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:04,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:49:04,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:04,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:49:04,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:04,830 INFO L87 Difference]: Start difference. First operand 9165 states and 15580 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:49:05,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:05,344 INFO L93 Difference]: Finished difference Result 23634 states and 40349 transitions. [2023-12-25 05:49:05,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:49:05,345 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2023-12-25 05:49:05,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:05,396 INFO L225 Difference]: With dead ends: 23634 [2023-12-25 05:49:05,396 INFO L226 Difference]: Without dead ends: 16058 [2023-12-25 05:49:05,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:05,422 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 91 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:05,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 878 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:49:05,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16058 states. [2023-12-25 05:49:06,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16058 to 16053. [2023-12-25 05:49:06,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16053 states, 13260 states have (on average 1.608898944193062) internal successors, (21334), 13264 states have internal predecessors, (21334), 2769 states have call successors, (2769), 20 states have call predecessors, (2769), 23 states have return successors, (3104), 2768 states have call predecessors, (3104), 2768 states have call successors, (3104) [2023-12-25 05:49:06,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16053 states to 16053 states and 27207 transitions. [2023-12-25 05:49:06,263 INFO L78 Accepts]: Start accepts. Automaton has 16053 states and 27207 transitions. Word has length 111 [2023-12-25 05:49:06,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:06,263 INFO L495 AbstractCegarLoop]: Abstraction has 16053 states and 27207 transitions. [2023-12-25 05:49:06,263 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:49:06,263 INFO L276 IsEmpty]: Start isEmpty. Operand 16053 states and 27207 transitions. [2023-12-25 05:49:06,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-25 05:49:06,284 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:06,284 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:49:06,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-25 05:49:06,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:49:06,491 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:06,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:06,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1362290345, now seen corresponding path program 1 times [2023-12-25 05:49:06,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:06,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446110246] [2023-12-25 05:49:06,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:06,493 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:49:06,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:06,514 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:49:06,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-25 05:49:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:06,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:49:06,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:06,794 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:49:06,794 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:06,794 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:06,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [446110246] [2023-12-25 05:49:06,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [446110246] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:06,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:06,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:49:06,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232523648] [2023-12-25 05:49:06,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:06,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:49:06,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:06,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:49:06,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:06,796 INFO L87 Difference]: Start difference. First operand 16053 states and 27207 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:49:07,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:07,820 INFO L93 Difference]: Finished difference Result 42407 states and 72215 transitions. [2023-12-25 05:49:07,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:49:07,821 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 112 [2023-12-25 05:49:07,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:07,943 INFO L225 Difference]: With dead ends: 42407 [2023-12-25 05:49:07,944 INFO L226 Difference]: Without dead ends: 28584 [2023-12-25 05:49:07,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:07,977 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 89 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:07,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 865 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:49:08,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28584 states. [2023-12-25 05:49:09,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28584 to 28579. [2023-12-25 05:49:09,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28579 states, 23747 states have (on average 1.6047921842759085) internal successors, (38109), 23751 states have internal predecessors, (38109), 4808 states have call successors, (4808), 20 states have call predecessors, (4808), 23 states have return successors, (5417), 4807 states have call predecessors, (5417), 4807 states have call successors, (5417) [2023-12-25 05:49:09,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28579 states to 28579 states and 48334 transitions. [2023-12-25 05:49:09,609 INFO L78 Accepts]: Start accepts. Automaton has 28579 states and 48334 transitions. Word has length 112 [2023-12-25 05:49:09,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:09,609 INFO L495 AbstractCegarLoop]: Abstraction has 28579 states and 48334 transitions. [2023-12-25 05:49:09,610 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:49:09,610 INFO L276 IsEmpty]: Start isEmpty. Operand 28579 states and 48334 transitions. [2023-12-25 05:49:09,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-25 05:49:09,637 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:09,637 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:49:09,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-25 05:49:09,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:49:09,845 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:09,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:09,845 INFO L85 PathProgramCache]: Analyzing trace with hash 2122085098, now seen corresponding path program 1 times [2023-12-25 05:49:09,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:09,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1037913875] [2023-12-25 05:49:09,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:09,846 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:49:09,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:09,869 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:49:09,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-25 05:49:10,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:10,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:49:10,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:10,107 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:49:10,108 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:10,108 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:10,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1037913875] [2023-12-25 05:49:10,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1037913875] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:10,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:10,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:49:10,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320855280] [2023-12-25 05:49:10,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:10,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:49:10,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:10,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:49:10,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:10,110 INFO L87 Difference]: Start difference. First operand 28579 states and 48334 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:49:11,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:11,711 INFO L93 Difference]: Finished difference Result 77784 states and 132057 transitions. [2023-12-25 05:49:11,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:49:11,711 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2023-12-25 05:49:11,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:12,037 INFO L225 Difference]: With dead ends: 77784 [2023-12-25 05:49:12,037 INFO L226 Difference]: Without dead ends: 52206 [2023-12-25 05:49:12,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:12,100 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 87 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:12,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 867 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:49:12,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52206 states. [2023-12-25 05:49:14,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52206 to 52201. [2023-12-25 05:49:14,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52201 states, 43654 states have (on average 1.599418151830302) internal successors, (69821), 43658 states have internal predecessors, (69821), 8523 states have call successors, (8523), 20 states have call predecessors, (8523), 23 states have return successors, (9664), 8522 states have call predecessors, (9664), 8522 states have call successors, (9664) [2023-12-25 05:49:14,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52201 states to 52201 states and 88008 transitions. [2023-12-25 05:49:14,872 INFO L78 Accepts]: Start accepts. Automaton has 52201 states and 88008 transitions. Word has length 113 [2023-12-25 05:49:14,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:14,873 INFO L495 AbstractCegarLoop]: Abstraction has 52201 states and 88008 transitions. [2023-12-25 05:49:14,873 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:49:14,873 INFO L276 IsEmpty]: Start isEmpty. Operand 52201 states and 88008 transitions. [2023-12-25 05:49:14,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-25 05:49:14,894 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:14,894 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:49:14,900 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 (22)] Ended with exit code 0 [2023-12-25 05:49:15,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:49:15,100 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:15,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:15,101 INFO L85 PathProgramCache]: Analyzing trace with hash -449957353, now seen corresponding path program 1 times [2023-12-25 05:49:15,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:15,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1586706543] [2023-12-25 05:49:15,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:15,101 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:49:15,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:15,102 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:49:15,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-25 05:49:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:15,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:49:15,329 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:15,360 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:49:15,360 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:15,361 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:15,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1586706543] [2023-12-25 05:49:15,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1586706543] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:15,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:15,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:49:15,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438789982] [2023-12-25 05:49:15,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:15,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:49:15,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:15,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:49:15,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:15,362 INFO L87 Difference]: Start difference. First operand 52201 states and 88008 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:49:18,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:18,751 INFO L93 Difference]: Finished difference Result 97302 states and 164422 transitions. [2023-12-25 05:49:18,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:49:18,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2023-12-25 05:49:18,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:19,122 INFO L225 Difference]: With dead ends: 97302 [2023-12-25 05:49:19,122 INFO L226 Difference]: Without dead ends: 97155 [2023-12-25 05:49:19,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:19,166 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 85 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:19,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 865 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:49:19,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97155 states. [2023-12-25 05:49:23,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97155 to 97150. [2023-12-25 05:49:23,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97150 states, 81804 states have (on average 1.5925993838932082) internal successors, (130281), 81808 states have internal predecessors, (130281), 15322 states have call successors, (15322), 20 states have call predecessors, (15322), 23 states have return successors, (17509), 15321 states have call predecessors, (17509), 15321 states have call successors, (17509) [2023-12-25 05:49:23,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97150 states to 97150 states and 163112 transitions. [2023-12-25 05:49:23,584 INFO L78 Accepts]: Start accepts. Automaton has 97150 states and 163112 transitions. Word has length 114 [2023-12-25 05:49:23,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:23,585 INFO L495 AbstractCegarLoop]: Abstraction has 97150 states and 163112 transitions. [2023-12-25 05:49:23,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:49:23,585 INFO L276 IsEmpty]: Start isEmpty. Operand 97150 states and 163112 transitions. [2023-12-25 05:49:23,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-25 05:49:23,608 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:23,608 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:49:23,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-25 05:49:23,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:49:23,814 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:23,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:23,815 INFO L85 PathProgramCache]: Analyzing trace with hash 107072585, now seen corresponding path program 1 times [2023-12-25 05:49:23,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:23,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1303235852] [2023-12-25 05:49:23,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:23,816 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:49:23,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:23,819 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:49:23,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-25 05:49:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:23,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 05:49:23,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:24,136 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:49:24,137 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:49:24,386 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-25 05:49:24,386 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:24,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1303235852] [2023-12-25 05:49:24,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1303235852] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:49:24,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:49:24,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-25 05:49:24,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031309723] [2023-12-25 05:49:24,387 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:49:24,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 05:49:24,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:24,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 05:49:24,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:49:24,389 INFO L87 Difference]: Start difference. First operand 97150 states and 163112 transitions. Second operand has 16 states, 16 states have (on average 9.0625) internal successors, (145), 14 states have internal predecessors, (145), 4 states have call successors, (26), 6 states have call predecessors, (26), 9 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) [2023-12-25 05:49:36,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:36,753 INFO L93 Difference]: Finished difference Result 285677 states and 486311 transitions. [2023-12-25 05:49:36,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:49:36,754 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.0625) internal successors, (145), 14 states have internal predecessors, (145), 4 states have call successors, (26), 6 states have call predecessors, (26), 9 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) Word has length 115 [2023-12-25 05:49:36,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:38,493 INFO L225 Difference]: With dead ends: 285677 [2023-12-25 05:49:38,493 INFO L226 Difference]: Without dead ends: 285537 [2023-12-25 05:49:38,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2023-12-25 05:49:38,616 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 1851 mSDsluCounter, 2344 mSDsCounter, 0 mSdLazyCounter, 3969 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1905 SdHoareTripleChecker+Valid, 2621 SdHoareTripleChecker+Invalid, 4403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 3969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:38,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1905 Valid, 2621 Invalid, 4403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 3969 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-25 05:49:38,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285537 states. [2023-12-25 05:49:50,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285537 to 194293. [2023-12-25 05:49:50,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194293 states, 163603 states have (on average 1.5925991577171568) internal successors, (260554), 163610 states have internal predecessors, (260554), 30642 states have call successors, (30642), 39 states have call predecessors, (30642), 47 states have return successors, (39386), 30643 states have call predecessors, (39386), 30640 states have call successors, (39386) [2023-12-25 05:49:51,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194293 states to 194293 states and 330582 transitions. [2023-12-25 05:49:51,322 INFO L78 Accepts]: Start accepts. Automaton has 194293 states and 330582 transitions. Word has length 115 [2023-12-25 05:49:51,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:51,322 INFO L495 AbstractCegarLoop]: Abstraction has 194293 states and 330582 transitions. [2023-12-25 05:49:51,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.0625) internal successors, (145), 14 states have internal predecessors, (145), 4 states have call successors, (26), 6 states have call predecessors, (26), 9 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) [2023-12-25 05:49:51,323 INFO L276 IsEmpty]: Start isEmpty. Operand 194293 states and 330582 transitions. [2023-12-25 05:49:51,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-25 05:49:51,770 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:51,770 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:49:51,778 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 (24)] Ended with exit code 0 [2023-12-25 05:49:51,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:49:51,978 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:51,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:51,979 INFO L85 PathProgramCache]: Analyzing trace with hash -901573268, now seen corresponding path program 1 times [2023-12-25 05:49:51,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:51,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [560852476] [2023-12-25 05:49:51,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:51,980 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:49:51,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:51,981 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:49:51,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-25 05:49:52,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:52,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:49:52,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:52,304 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 05:49:52,305 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:52,305 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:52,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [560852476] [2023-12-25 05:49:52,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [560852476] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:52,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:52,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:49:52,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268862758] [2023-12-25 05:49:52,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:52,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:49:52,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:52,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:49:52,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:49:52,306 INFO L87 Difference]: Start difference. First operand 194293 states and 330582 transitions. Second operand has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-25 05:49:59,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:59,958 INFO L93 Difference]: Finished difference Result 194765 states and 331299 transitions. [2023-12-25 05:49:59,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:49:59,959 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 116 [2023-12-25 05:49:59,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:00,897 INFO L225 Difference]: With dead ends: 194765 [2023-12-25 05:50:00,898 INFO L226 Difference]: Without dead ends: 194343 [2023-12-25 05:50:00,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2023-12-25 05:50:00,998 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 656 mSDsluCounter, 2373 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 2773 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:00,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 2773 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 05:50:01,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194343 states. [2023-12-25 05:50:11,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194343 to 194339. [2023-12-25 05:50:11,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194339 states, 163640 states have (on average 1.5925568320703984) internal successors, (260606), 163647 states have internal predecessors, (260606), 30650 states have call successors, (30650), 41 states have call predecessors, (30650), 48 states have return successors, (39398), 30650 states have call predecessors, (39398), 30648 states have call successors, (39398) [2023-12-25 05:50:12,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194339 states to 194339 states and 330654 transitions. [2023-12-25 05:50:12,520 INFO L78 Accepts]: Start accepts. Automaton has 194339 states and 330654 transitions. Word has length 116 [2023-12-25 05:50:12,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:12,521 INFO L495 AbstractCegarLoop]: Abstraction has 194339 states and 330654 transitions. [2023-12-25 05:50:12,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-25 05:50:12,521 INFO L276 IsEmpty]: Start isEmpty. Operand 194339 states and 330654 transitions. [2023-12-25 05:50:12,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-25 05:50:12,566 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:12,566 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:12,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:12,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:12,771 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:12,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:12,771 INFO L85 PathProgramCache]: Analyzing trace with hash -910433849, now seen corresponding path program 1 times [2023-12-25 05:50:12,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:12,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953964489] [2023-12-25 05:50:12,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:12,772 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:12,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:12,779 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:12,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-25 05:50:12,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:12,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:50:12,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:12,972 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-25 05:50:12,972 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:12,972 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:12,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953964489] [2023-12-25 05:50:12,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1953964489] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:12,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:12,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:50:12,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926855180] [2023-12-25 05:50:12,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:12,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:50:12,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:12,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:50:12,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:50:12,973 INFO L87 Difference]: Start difference. First operand 194339 states and 330654 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12)