/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/elevator_spec2_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:31:08,398 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:31:08,462 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 05:31:08,465 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:31:08,466 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:31:08,479 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:31:08,479 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:31:08,479 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:31:08,480 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:31:08,480 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:31:08,480 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:31:08,481 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:31:08,481 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:31:08,481 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:31:08,482 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:31:08,482 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:31:08,482 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:31:08,482 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:31:08,482 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:31:08,483 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:31:08,483 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:31:08,484 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:31:08,485 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:31:08,485 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:31:08,485 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:31:08,485 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:31:08,485 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:31:08,485 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:31:08,486 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:31:08,486 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:31:08,486 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:31:08,486 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:31:08,486 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:31:08,486 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:31:08,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:31:08,487 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:31:08,487 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:31:08,487 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:31:08,487 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:31:08,487 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:31:08,487 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:31:08,487 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:31:08,488 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:31:08,488 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:31:08,488 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:31:08,488 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:31:08,488 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:31:08,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:31:08,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:31:08,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:31:08,691 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:31:08,691 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:31:08,693 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product26.cil.c [2023-12-25 05:31:09,721 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:31:09,907 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:31:09,908 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product26.cil.c [2023-12-25 05:31:09,967 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53c9835ef/3222600c73e748c89423a75779bfb60e/FLAGdb9ade5fb [2023-12-25 05:31:09,979 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53c9835ef/3222600c73e748c89423a75779bfb60e [2023-12-25 05:31:09,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:31:09,982 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:31:09,983 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:31:09,984 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:31:09,987 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:31:09,988 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:31:09" (1/1) ... [2023-12-25 05:31:09,989 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a9e87e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:09, skipping insertion in model container [2023-12-25 05:31:09,989 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:31:09" (1/1) ... [2023-12-25 05:31:10,044 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:31:10,502 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/elevator_spec2_product26.cil.c[70298,70311] [2023-12-25 05:31:10,521 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:31:10,535 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:31:10,561 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:31:10,631 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/elevator_spec2_product26.cil.c[70298,70311] [2023-12-25 05:31:10,639 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:31:10,646 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:31:10,653 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-12-25 05:31:10,654 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [412] [2023-12-25 05:31:10,655 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1940] [2023-12-25 05:31:10,655 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2058] [2023-12-25 05:31:10,655 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2070] [2023-12-25 05:31:10,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2436] [2023-12-25 05:31:10,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2471] [2023-12-25 05:31:10,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [3132] [2023-12-25 05:31:10,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3314] [2023-12-25 05:31:10,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3323] [2023-12-25 05:31:10,753 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/elevator_spec2_product26.cil.c[70298,70311] [2023-12-25 05:31:10,755 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:31:10,773 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:31:10,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:10 WrapperNode [2023-12-25 05:31:10,774 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:31:10,775 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:31:10,775 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:31:10,775 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:31:10,780 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:10" (1/1) ... [2023-12-25 05:31:10,821 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:10" (1/1) ... [2023-12-25 05:31:10,858 INFO L138 Inliner]: procedures = 95, calls = 340, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 816 [2023-12-25 05:31:10,858 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:31:10,859 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:31:10,859 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:31:10,859 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:31:10,872 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:10" (1/1) ... [2023-12-25 05:31:10,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:10" (1/1) ... [2023-12-25 05:31:10,878 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:10" (1/1) ... [2023-12-25 05:31:10,911 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-25 05:31:10,911 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:10" (1/1) ... [2023-12-25 05:31:10,911 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:10" (1/1) ... [2023-12-25 05:31:10,925 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:10" (1/1) ... [2023-12-25 05:31:10,933 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:10" (1/1) ... [2023-12-25 05:31:10,938 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:10" (1/1) ... [2023-12-25 05:31:10,941 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:10" (1/1) ... [2023-12-25 05:31:10,947 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:31:10,948 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:31:10,948 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:31:10,948 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:31:10,949 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:10" (1/1) ... [2023-12-25 05:31:10,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:31:10,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:31:10,995 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 05:31:11,010 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 05:31:11,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:31:11,047 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-25 05:31:11,047 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-25 05:31:11,047 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-25 05:31:11,047 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-25 05:31:11,047 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-25 05:31:11,047 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-25 05:31:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-25 05:31:11,048 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-25 05:31:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-25 05:31:11,049 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-25 05:31:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-25 05:31:11,051 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-25 05:31:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-25 05:31:11,051 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-25 05:31:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-25 05:31:11,051 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-25 05:31:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-25 05:31:11,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-25 05:31:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-25 05:31:11,051 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-25 05:31:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-25 05:31:11,051 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-25 05:31:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-25 05:31:11,051 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-25 05:31:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:31:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:31:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:31:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:31:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-25 05:31:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-25 05:31:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-25 05:31:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-25 05:31:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-25 05:31:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-25 05:31:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-25 05:31:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-25 05:31:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-25 05:31:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-25 05:31:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-25 05:31:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-25 05:31:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-25 05:31:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-25 05:31:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-25 05:31:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-25 05:31:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-25 05:31:11,053 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-25 05:31:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-25 05:31:11,053 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-25 05:31:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__empty [2023-12-25 05:31:11,053 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__empty [2023-12-25 05:31:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-25 05:31:11,054 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-25 05:31:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-25 05:31:11,054 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-25 05:31:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-25 05:31:11,054 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-25 05:31:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-25 05:31:11,054 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-25 05:31:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-25 05:31:11,056 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-25 05:31:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-25 05:31:11,056 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-25 05:31:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:31:11,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:31:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-25 05:31:11,056 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-25 05:31:11,239 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:31:11,242 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:31:12,212 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:31:12,289 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:31:12,289 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:31:12,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:31:12 BoogieIcfgContainer [2023-12-25 05:31:12,289 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:31:12,291 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:31:12,291 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:31:12,293 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:31:12,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:31:09" (1/3) ... [2023-12-25 05:31:12,294 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50f8d8f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:31:12, skipping insertion in model container [2023-12-25 05:31:12,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:10" (2/3) ... [2023-12-25 05:31:12,294 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50f8d8f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:31:12, skipping insertion in model container [2023-12-25 05:31:12,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:31:12" (3/3) ... [2023-12-25 05:31:12,295 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product26.cil.c [2023-12-25 05:31:12,307 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:31:12,307 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:31:12,342 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:31:12,346 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;@79c840b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:31:12,346 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:31:12,351 INFO L276 IsEmpty]: Start isEmpty. Operand has 529 states, 414 states have (on average 1.7439613526570048) internal successors, (722), 437 states have internal predecessors, (722), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 84 states have call predecessors, (91), 91 states have call successors, (91) [2023-12-25 05:31:12,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-25 05:31:12,360 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:12,360 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:12,361 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:12,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:12,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1949591273, now seen corresponding path program 1 times [2023-12-25 05:31:12,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:12,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1415454764] [2023-12-25 05:31:12,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:12,373 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 05:31:12,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:12,376 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 05:31:12,405 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 (2)] Waiting until timeout for monitored process [2023-12-25 05:31:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:12,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:31:12,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:12,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:12,678 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:12,678 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:12,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1415454764] [2023-12-25 05:31:12,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1415454764] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:12,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:12,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:31:12,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767493036] [2023-12-25 05:31:12,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:12,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:31:12,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:12,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:31:12,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:31:12,704 INFO L87 Difference]: Start difference. First operand has 529 states, 414 states have (on average 1.7439613526570048) internal successors, (722), 437 states have internal predecessors, (722), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 84 states have call predecessors, (91), 91 states have call successors, (91) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-25 05:31:12,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:12,822 INFO L93 Difference]: Finished difference Result 547 states and 931 transitions. [2023-12-25 05:31:12,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:31:12,824 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 46 [2023-12-25 05:31:12,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:12,842 INFO L225 Difference]: With dead ends: 547 [2023-12-25 05:31:12,842 INFO L226 Difference]: Without dead ends: 525 [2023-12-25 05:31:12,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 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 05:31:12,847 INFO L413 NwaCegarLoop]: 881 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:12,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 881 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:31:12,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2023-12-25 05:31:12,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 525. [2023-12-25 05:31:12,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 412 states have (on average 1.7354368932038835) internal successors, (715), 433 states have internal predecessors, (715), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-25 05:31:12,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 892 transitions. [2023-12-25 05:31:12,901 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 892 transitions. Word has length 46 [2023-12-25 05:31:12,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:12,902 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 892 transitions. [2023-12-25 05:31:12,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-25 05:31:12,902 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 892 transitions. [2023-12-25 05:31:12,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-25 05:31:12,905 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:12,905 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:12,919 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 05:31:13,120 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 05:31:13,120 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:13,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:13,121 INFO L85 PathProgramCache]: Analyzing trace with hash -2096898351, now seen corresponding path program 1 times [2023-12-25 05:31:13,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:13,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578844164] [2023-12-25 05:31:13,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:13,122 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 05:31:13,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:13,123 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 05:31:13,134 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 05:31:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:13,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:13,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:13,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:13,438 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:13,438 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:13,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578844164] [2023-12-25 05:31:13,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1578844164] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:13,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:13,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:13,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541784655] [2023-12-25 05:31:13,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:13,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:13,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:13,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:13,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:13,441 INFO L87 Difference]: Start difference. First operand 525 states and 892 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 05:31:13,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:13,540 INFO L93 Difference]: Finished difference Result 1038 states and 1766 transitions. [2023-12-25 05:31:13,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:31:13,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 47 [2023-12-25 05:31:13,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:13,545 INFO L225 Difference]: With dead ends: 1038 [2023-12-25 05:31:13,546 INFO L226 Difference]: Without dead ends: 525 [2023-12-25 05:31:13,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 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 05:31:13,550 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 14 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2593 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:13,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2593 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:31:13,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2023-12-25 05:31:13,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 525. [2023-12-25 05:31:13,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 412 states have (on average 1.733009708737864) internal successors, (714), 433 states have internal predecessors, (714), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-25 05:31:13,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 891 transitions. [2023-12-25 05:31:13,572 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 891 transitions. Word has length 47 [2023-12-25 05:31:13,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:13,572 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 891 transitions. [2023-12-25 05:31:13,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 05:31:13,572 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 891 transitions. [2023-12-25 05:31:13,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-25 05:31:13,574 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:13,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:13,584 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 (3)] Forceful destruction successful, exit code 0 [2023-12-25 05:31:13,784 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 05:31:13,784 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:13,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:13,785 INFO L85 PathProgramCache]: Analyzing trace with hash 51341049, now seen corresponding path program 1 times [2023-12-25 05:31:13,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:13,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1739927827] [2023-12-25 05:31:13,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:13,786 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 05:31:13,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:13,788 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 05:31:13,792 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 05:31:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:14,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:14,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:14,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:14,078 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:14,078 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:14,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1739927827] [2023-12-25 05:31:14,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1739927827] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:14,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:14,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:14,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758841290] [2023-12-25 05:31:14,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:14,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:14,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:14,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:14,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:14,080 INFO L87 Difference]: Start difference. First operand 525 states and 891 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 05:31:14,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:14,158 INFO L93 Difference]: Finished difference Result 1038 states and 1765 transitions. [2023-12-25 05:31:14,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:31:14,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 48 [2023-12-25 05:31:14,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:14,161 INFO L225 Difference]: With dead ends: 1038 [2023-12-25 05:31:14,162 INFO L226 Difference]: Without dead ends: 525 [2023-12-25 05:31:14,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 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 05:31:14,164 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 12 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2593 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:14,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2593 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:31:14,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2023-12-25 05:31:14,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 525. [2023-12-25 05:31:14,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 412 states have (on average 1.7305825242718447) internal successors, (713), 433 states have internal predecessors, (713), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-25 05:31:14,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 890 transitions. [2023-12-25 05:31:14,180 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 890 transitions. Word has length 48 [2023-12-25 05:31:14,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:14,180 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 890 transitions. [2023-12-25 05:31:14,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 05:31:14,181 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 890 transitions. [2023-12-25 05:31:14,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-25 05:31:14,182 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:14,182 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:14,202 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 05:31:14,389 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 05:31:14,390 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:14,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:14,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1225420843, now seen corresponding path program 1 times [2023-12-25 05:31:14,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:14,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1000754233] [2023-12-25 05:31:14,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:14,391 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 05:31:14,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:14,393 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 05:31:14,397 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 05:31:14,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:14,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:14,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:14,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:14,634 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:14,635 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:14,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1000754233] [2023-12-25 05:31:14,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1000754233] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:14,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:14,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:14,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155697768] [2023-12-25 05:31:14,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:14,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:14,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:14,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:14,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:14,636 INFO L87 Difference]: Start difference. First operand 525 states and 890 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 05:31:14,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:14,709 INFO L93 Difference]: Finished difference Result 1038 states and 1764 transitions. [2023-12-25 05:31:14,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:31:14,710 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 49 [2023-12-25 05:31:14,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:14,712 INFO L225 Difference]: With dead ends: 1038 [2023-12-25 05:31:14,712 INFO L226 Difference]: Without dead ends: 525 [2023-12-25 05:31:14,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 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 05:31:14,715 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 10 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2593 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:14,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2593 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:31:14,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2023-12-25 05:31:14,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 525. [2023-12-25 05:31:14,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 412 states have (on average 1.7281553398058251) internal successors, (712), 433 states have internal predecessors, (712), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-25 05:31:14,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 889 transitions. [2023-12-25 05:31:14,730 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 889 transitions. Word has length 49 [2023-12-25 05:31:14,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:14,730 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 889 transitions. [2023-12-25 05:31:14,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 05:31:14,730 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 889 transitions. [2023-12-25 05:31:14,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-25 05:31:14,731 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:14,731 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:14,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-25 05:31:14,947 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 05:31:14,947 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:14,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:14,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1303040387, now seen corresponding path program 1 times [2023-12-25 05:31:14,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:14,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [66150727] [2023-12-25 05:31:14,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:14,948 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:31:14,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:14,950 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 05:31:14,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-25 05:31:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:15,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:15,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:15,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:15,227 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:15,227 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:15,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [66150727] [2023-12-25 05:31:15,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [66150727] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:15,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:15,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:15,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715483710] [2023-12-25 05:31:15,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:15,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:15,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:15,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:15,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:15,229 INFO L87 Difference]: Start difference. First operand 525 states and 889 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 05:31:15,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:15,300 INFO L93 Difference]: Finished difference Result 1038 states and 1763 transitions. [2023-12-25 05:31:15,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:31:15,300 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 50 [2023-12-25 05:31:15,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:15,303 INFO L225 Difference]: With dead ends: 1038 [2023-12-25 05:31:15,303 INFO L226 Difference]: Without dead ends: 525 [2023-12-25 05:31:15,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 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 05:31:15,305 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 8 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2593 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:15,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2593 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:31:15,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2023-12-25 05:31:15,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 525. [2023-12-25 05:31:15,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 412 states have (on average 1.7257281553398058) internal successors, (711), 433 states have internal predecessors, (711), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-25 05:31:15,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 888 transitions. [2023-12-25 05:31:15,318 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 888 transitions. Word has length 50 [2023-12-25 05:31:15,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:15,318 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 888 transitions. [2023-12-25 05:31:15,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 05:31:15,318 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 888 transitions. [2023-12-25 05:31:15,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-25 05:31:15,319 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:15,319 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:15,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-25 05:31:15,529 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 05:31:15,530 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:15,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:15,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1433014489, now seen corresponding path program 1 times [2023-12-25 05:31:15,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:15,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [391378611] [2023-12-25 05:31:15,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:15,531 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 05:31:15,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:15,532 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 05:31:15,539 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 05:31:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:15,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:15,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:15,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:15,784 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:15,784 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:15,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [391378611] [2023-12-25 05:31:15,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [391378611] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:15,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:15,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:15,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927900314] [2023-12-25 05:31:15,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:15,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:15,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:15,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:15,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:15,786 INFO L87 Difference]: Start difference. First operand 525 states and 888 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 05:31:15,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:15,851 INFO L93 Difference]: Finished difference Result 1038 states and 1762 transitions. [2023-12-25 05:31:15,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:31:15,852 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2023-12-25 05:31:15,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:15,855 INFO L225 Difference]: With dead ends: 1038 [2023-12-25 05:31:15,855 INFO L226 Difference]: Without dead ends: 525 [2023-12-25 05:31:15,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 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 05:31:15,857 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 6 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2593 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:15,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2593 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:31:15,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2023-12-25 05:31:15,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 525. [2023-12-25 05:31:15,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 412 states have (on average 1.7233009708737863) internal successors, (710), 433 states have internal predecessors, (710), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-25 05:31:15,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 887 transitions. [2023-12-25 05:31:15,869 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 887 transitions. Word has length 51 [2023-12-25 05:31:15,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:15,869 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 887 transitions. [2023-12-25 05:31:15,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 05:31:15,870 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 887 transitions. [2023-12-25 05:31:15,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-25 05:31:15,870 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:15,870 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:15,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-25 05:31:16,076 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 05:31:16,077 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:16,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:16,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1198663169, now seen corresponding path program 1 times [2023-12-25 05:31:16,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:16,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1590533555] [2023-12-25 05:31:16,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:16,078 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 05:31:16,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:16,079 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 05:31:16,091 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 05:31:16,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:16,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:31:16,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:16,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:16,327 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:16,327 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:16,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1590533555] [2023-12-25 05:31:16,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1590533555] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:16,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:16,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:31:16,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585368621] [2023-12-25 05:31:16,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:16,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:31:16,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:16,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:31:16,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:31:16,328 INFO L87 Difference]: Start difference. First operand 525 states and 887 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2023-12-25 05:31:16,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:16,469 INFO L93 Difference]: Finished difference Result 1004 states and 1694 transitions. [2023-12-25 05:31:16,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:31:16,470 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 52 [2023-12-25 05:31:16,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:16,473 INFO L225 Difference]: With dead ends: 1004 [2023-12-25 05:31:16,473 INFO L226 Difference]: Without dead ends: 539 [2023-12-25 05:31:16,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:31:16,475 INFO L413 NwaCegarLoop]: 863 mSDtfsCounter, 115 mSDsluCounter, 4225 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 5088 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:16,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 5088 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:31:16,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2023-12-25 05:31:16,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 537. [2023-12-25 05:31:16,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 421 states have (on average 1.7197149643705463) internal successors, (724), 444 states have internal predecessors, (724), 92 states have call successors, (92), 22 states have call predecessors, (92), 23 states have return successors, (89), 84 states have call predecessors, (89), 87 states have call successors, (89) [2023-12-25 05:31:16,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 905 transitions. [2023-12-25 05:31:16,489 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 905 transitions. Word has length 52 [2023-12-25 05:31:16,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:16,489 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 905 transitions. [2023-12-25 05:31:16,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2023-12-25 05:31:16,489 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 905 transitions. [2023-12-25 05:31:16,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-25 05:31:16,490 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:16,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:16,498 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 05:31:16,698 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 05:31:16,698 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:16,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:16,699 INFO L85 PathProgramCache]: Analyzing trace with hash -736997118, now seen corresponding path program 1 times [2023-12-25 05:31:16,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:16,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [766293884] [2023-12-25 05:31:16,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:16,700 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 05:31:16,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:16,701 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 05:31:16,724 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 05:31:16,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:16,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:16,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:16,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:16,959 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:16,959 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:16,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [766293884] [2023-12-25 05:31:16,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [766293884] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:16,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:16,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:16,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434204376] [2023-12-25 05:31:16,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:16,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:16,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:16,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:16,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:16,960 INFO L87 Difference]: Start difference. First operand 537 states and 905 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 05:31:17,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:17,027 INFO L93 Difference]: Finished difference Result 1054 states and 1786 transitions. [2023-12-25 05:31:17,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:31:17,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2023-12-25 05:31:17,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:17,031 INFO L225 Difference]: With dead ends: 1054 [2023-12-25 05:31:17,031 INFO L226 Difference]: Without dead ends: 519 [2023-12-25 05:31:17,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 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 05:31:17,057 INFO L413 NwaCegarLoop]: 867 mSDtfsCounter, 3 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2594 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:17,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2594 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:31:17,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2023-12-25 05:31:17,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 519. [2023-12-25 05:31:17,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 406 states have (on average 1.7142857142857142) internal successors, (696), 427 states have internal predecessors, (696), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-25 05:31:17,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 873 transitions. [2023-12-25 05:31:17,068 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 873 transitions. Word has length 52 [2023-12-25 05:31:17,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:17,068 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 873 transitions. [2023-12-25 05:31:17,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 05:31:17,068 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 873 transitions. [2023-12-25 05:31:17,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-25 05:31:17,070 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:17,070 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:17,091 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 05:31:17,276 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 05:31:17,276 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:17,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:17,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1254264739, now seen corresponding path program 1 times [2023-12-25 05:31:17,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:17,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1405481289] [2023-12-25 05:31:17,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:17,277 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 05:31:17,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:17,278 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 05:31:17,313 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 05:31:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:17,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:17,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:17,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:17,518 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:17,518 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:17,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1405481289] [2023-12-25 05:31:17,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1405481289] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:17,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:17,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:17,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578131691] [2023-12-25 05:31:17,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:17,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:17,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:17,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:17,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:17,519 INFO L87 Difference]: Start difference. First operand 519 states and 873 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 05:31:17,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:17,655 INFO L93 Difference]: Finished difference Result 992 states and 1672 transitions. [2023-12-25 05:31:17,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:31:17,656 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 53 [2023-12-25 05:31:17,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:17,658 INFO L225 Difference]: With dead ends: 992 [2023-12-25 05:31:17,658 INFO L226 Difference]: Without dead ends: 519 [2023-12-25 05:31:17,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 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 05:31:17,660 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 88 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 2409 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:17,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 2409 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:31:17,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2023-12-25 05:31:17,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 519. [2023-12-25 05:31:17,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 406 states have (on average 1.7044334975369457) internal successors, (692), 427 states have internal predecessors, (692), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-25 05:31:17,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 869 transitions. [2023-12-25 05:31:17,671 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 869 transitions. Word has length 53 [2023-12-25 05:31:17,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:17,671 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 869 transitions. [2023-12-25 05:31:17,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 05:31:17,671 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 869 transitions. [2023-12-25 05:31:17,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 05:31:17,672 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:17,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:17,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-25 05:31:17,895 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 05:31:17,896 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:17,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:17,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1924706878, now seen corresponding path program 1 times [2023-12-25 05:31:17,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:17,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130796366] [2023-12-25 05:31:17,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:17,897 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:31:17,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:17,899 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 05:31:17,911 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 05:31:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:18,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:18,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:18,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:18,139 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:18,140 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:18,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130796366] [2023-12-25 05:31:18,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130796366] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:18,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:18,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:18,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161304176] [2023-12-25 05:31:18,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:18,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:18,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:18,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:18,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:18,141 INFO L87 Difference]: Start difference. First operand 519 states and 869 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 05:31:18,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:18,249 INFO L93 Difference]: Finished difference Result 992 states and 1668 transitions. [2023-12-25 05:31:18,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:31:18,250 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 54 [2023-12-25 05:31:18,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:18,253 INFO L225 Difference]: With dead ends: 992 [2023-12-25 05:31:18,253 INFO L226 Difference]: Without dead ends: 519 [2023-12-25 05:31:18,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 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 05:31:18,255 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 83 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 2409 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:18,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 2409 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:31:18,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2023-12-25 05:31:18,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 519. [2023-12-25 05:31:18,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 406 states have (on average 1.6945812807881773) internal successors, (688), 427 states have internal predecessors, (688), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-25 05:31:18,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 865 transitions. [2023-12-25 05:31:18,264 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 865 transitions. Word has length 54 [2023-12-25 05:31:18,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:18,265 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 865 transitions. [2023-12-25 05:31:18,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 05:31:18,265 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 865 transitions. [2023-12-25 05:31:18,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-25 05:31:18,265 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:18,265 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:18,288 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 05:31:18,471 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 05:31:18,471 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:18,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:18,472 INFO L85 PathProgramCache]: Analyzing trace with hash 2066069406, now seen corresponding path program 1 times [2023-12-25 05:31:18,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:18,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011624992] [2023-12-25 05:31:18,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:18,472 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 05:31:18,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:18,473 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 05:31:18,474 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 05:31:18,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:18,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:18,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:18,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:18,738 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:18,738 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:18,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011624992] [2023-12-25 05:31:18,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011624992] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:18,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:18,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:18,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101825799] [2023-12-25 05:31:18,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:18,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:18,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:18,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:18,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:18,739 INFO L87 Difference]: Start difference. First operand 519 states and 865 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 05:31:18,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:18,844 INFO L93 Difference]: Finished difference Result 992 states and 1664 transitions. [2023-12-25 05:31:18,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:31:18,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 55 [2023-12-25 05:31:18,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:18,846 INFO L225 Difference]: With dead ends: 992 [2023-12-25 05:31:18,846 INFO L226 Difference]: Without dead ends: 519 [2023-12-25 05:31:18,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 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 05:31:18,848 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 78 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 2409 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:18,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 2409 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:31:18,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2023-12-25 05:31:18,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 519. [2023-12-25 05:31:18,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 406 states have (on average 1.6847290640394088) internal successors, (684), 427 states have internal predecessors, (684), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-25 05:31:18,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 861 transitions. [2023-12-25 05:31:18,858 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 861 transitions. Word has length 55 [2023-12-25 05:31:18,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:18,858 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 861 transitions. [2023-12-25 05:31:18,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 05:31:18,858 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 861 transitions. [2023-12-25 05:31:18,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-25 05:31:18,859 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:18,859 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:18,877 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 05:31:19,064 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 05:31:19,065 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:19,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:19,065 INFO L85 PathProgramCache]: Analyzing trace with hash -840479970, now seen corresponding path program 1 times [2023-12-25 05:31:19,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:19,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283889164] [2023-12-25 05:31:19,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:19,065 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 05:31:19,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:19,066 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 05:31:19,100 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 05:31:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:19,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:31:19,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:19,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:19,307 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:19,307 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:19,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283889164] [2023-12-25 05:31:19,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283889164] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:19,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:19,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:31:19,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579004520] [2023-12-25 05:31:19,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:19,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:31:19,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:19,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:31:19,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:31:19,309 INFO L87 Difference]: Start difference. First operand 519 states and 861 transitions. Second operand has 7 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2023-12-25 05:31:19,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:19,439 INFO L93 Difference]: Finished difference Result 992 states and 1660 transitions. [2023-12-25 05:31:19,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:31:19,440 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 55 [2023-12-25 05:31:19,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:19,442 INFO L225 Difference]: With dead ends: 992 [2023-12-25 05:31:19,442 INFO L226 Difference]: Without dead ends: 498 [2023-12-25 05:31:19,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:31:19,444 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 108 mSDsluCounter, 4098 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 4934 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:19,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 4934 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:31:19,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2023-12-25 05:31:19,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 498. [2023-12-25 05:31:19,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 385 states have (on average 1.6883116883116882) internal successors, (650), 406 states have internal predecessors, (650), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-25 05:31:19,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 827 transitions. [2023-12-25 05:31:19,454 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 827 transitions. Word has length 55 [2023-12-25 05:31:19,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:19,455 INFO L495 AbstractCegarLoop]: Abstraction has 498 states and 827 transitions. [2023-12-25 05:31:19,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2023-12-25 05:31:19,455 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 827 transitions. [2023-12-25 05:31:19,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-25 05:31:19,455 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:19,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:19,471 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 05:31:19,661 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 05:31:19,662 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:19,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:19,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1309134119, now seen corresponding path program 1 times [2023-12-25 05:31:19,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:19,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1445599413] [2023-12-25 05:31:19,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:19,663 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 05:31:19,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:19,677 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 05:31:19,678 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 05:31:19,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:19,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:19,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:19,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:19,934 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:19,934 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:19,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1445599413] [2023-12-25 05:31:19,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1445599413] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:19,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:19,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:19,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998326003] [2023-12-25 05:31:19,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:19,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:19,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:19,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:19,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:19,935 INFO L87 Difference]: Start difference. First operand 498 states and 827 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 05:31:20,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:20,002 INFO L93 Difference]: Finished difference Result 971 states and 1626 transitions. [2023-12-25 05:31:20,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:31:20,002 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2023-12-25 05:31:20,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:20,004 INFO L225 Difference]: With dead ends: 971 [2023-12-25 05:31:20,004 INFO L226 Difference]: Without dead ends: 498 [2023-12-25 05:31:20,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 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 05:31:20,006 INFO L413 NwaCegarLoop]: 804 mSDtfsCounter, 39 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2395 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:20,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 2395 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:31:20,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2023-12-25 05:31:20,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 498. [2023-12-25 05:31:20,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 385 states have (on average 1.6857142857142857) internal successors, (649), 406 states have internal predecessors, (649), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-25 05:31:20,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 826 transitions. [2023-12-25 05:31:20,017 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 826 transitions. Word has length 56 [2023-12-25 05:31:20,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:20,017 INFO L495 AbstractCegarLoop]: Abstraction has 498 states and 826 transitions. [2023-12-25 05:31:20,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 05:31:20,017 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 826 transitions. [2023-12-25 05:31:20,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-25 05:31:20,017 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:20,017 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:20,033 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 (14)] Ended with exit code 0 [2023-12-25 05:31:20,224 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 05:31:20,224 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:20,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:20,224 INFO L85 PathProgramCache]: Analyzing trace with hash -2028735591, now seen corresponding path program 1 times [2023-12-25 05:31:20,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:20,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [23693650] [2023-12-25 05:31:20,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:20,225 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 05:31:20,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:20,226 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 05:31:20,227 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 05:31:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:20,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:20,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:20,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:20,487 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:20,487 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:20,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [23693650] [2023-12-25 05:31:20,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [23693650] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:20,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:20,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:20,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757952073] [2023-12-25 05:31:20,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:20,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:20,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:20,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:20,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:20,489 INFO L87 Difference]: Start difference. First operand 498 states and 826 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 05:31:20,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:20,556 INFO L93 Difference]: Finished difference Result 971 states and 1625 transitions. [2023-12-25 05:31:20,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:31:20,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 57 [2023-12-25 05:31:20,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:20,558 INFO L225 Difference]: With dead ends: 971 [2023-12-25 05:31:20,558 INFO L226 Difference]: Without dead ends: 498 [2023-12-25 05:31:20,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 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 05:31:20,560 INFO L413 NwaCegarLoop]: 804 mSDtfsCounter, 37 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 2395 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:20,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 2395 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:31:20,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2023-12-25 05:31:20,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 498. [2023-12-25 05:31:20,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 385 states have (on average 1.683116883116883) internal successors, (648), 406 states have internal predecessors, (648), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-25 05:31:20,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 825 transitions. [2023-12-25 05:31:20,571 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 825 transitions. Word has length 57 [2023-12-25 05:31:20,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:20,571 INFO L495 AbstractCegarLoop]: Abstraction has 498 states and 825 transitions. [2023-12-25 05:31:20,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 05:31:20,571 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 825 transitions. [2023-12-25 05:31:20,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-25 05:31:20,571 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:20,572 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:20,609 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 05:31:20,792 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 05:31:20,792 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:20,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:20,793 INFO L85 PathProgramCache]: Analyzing trace with hash 21931954, now seen corresponding path program 1 times [2023-12-25 05:31:20,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:20,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907991281] [2023-12-25 05:31:20,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:20,794 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 05:31:20,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:20,795 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 05:31:20,797 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 05:31:21,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:21,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:21,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:21,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:21,102 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:21,102 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:21,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907991281] [2023-12-25 05:31:21,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [907991281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:21,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:21,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:21,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588696498] [2023-12-25 05:31:21,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:21,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:21,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:21,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:21,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:21,104 INFO L87 Difference]: Start difference. First operand 498 states and 825 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 05:31:21,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:21,171 INFO L93 Difference]: Finished difference Result 971 states and 1624 transitions. [2023-12-25 05:31:21,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:31:21,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 58 [2023-12-25 05:31:21,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:21,174 INFO L225 Difference]: With dead ends: 971 [2023-12-25 05:31:21,175 INFO L226 Difference]: Without dead ends: 498 [2023-12-25 05:31:21,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 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 05:31:21,177 INFO L413 NwaCegarLoop]: 804 mSDtfsCounter, 35 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 2395 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:21,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 2395 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:31:21,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2023-12-25 05:31:21,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 498. [2023-12-25 05:31:21,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 385 states have (on average 1.6805194805194805) internal successors, (647), 406 states have internal predecessors, (647), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-25 05:31:21,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 824 transitions. [2023-12-25 05:31:21,186 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 824 transitions. Word has length 58 [2023-12-25 05:31:21,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:21,186 INFO L495 AbstractCegarLoop]: Abstraction has 498 states and 824 transitions. [2023-12-25 05:31:21,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 05:31:21,187 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 824 transitions. [2023-12-25 05:31:21,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-25 05:31:21,187 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:21,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:21,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-25 05:31:21,393 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 05:31:21,393 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:21,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:21,394 INFO L85 PathProgramCache]: Analyzing trace with hash -2029052044, now seen corresponding path program 1 times [2023-12-25 05:31:21,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:21,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1323488962] [2023-12-25 05:31:21,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:21,394 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 05:31:21,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:21,395 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 05:31:21,397 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 05:31:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:21,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:31:21,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:21,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:21,700 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:21,700 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:21,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1323488962] [2023-12-25 05:31:21,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1323488962] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:21,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:21,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:31:21,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245047850] [2023-12-25 05:31:21,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:21,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:31:21,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:21,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:31:21,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:31:21,701 INFO L87 Difference]: Start difference. First operand 498 states and 824 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2023-12-25 05:31:21,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:21,849 INFO L93 Difference]: Finished difference Result 965 states and 1612 transitions. [2023-12-25 05:31:21,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:31:21,850 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 58 [2023-12-25 05:31:21,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:21,852 INFO L225 Difference]: With dead ends: 965 [2023-12-25 05:31:21,852 INFO L226 Difference]: Without dead ends: 498 [2023-12-25 05:31:21,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:31:21,853 INFO L413 NwaCegarLoop]: 796 mSDtfsCounter, 24 mSDsluCounter, 4759 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 5555 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:21,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 5555 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:31:21,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2023-12-25 05:31:21,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 498. [2023-12-25 05:31:21,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 385 states have (on average 1.6779220779220778) internal successors, (646), 406 states have internal predecessors, (646), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-25 05:31:21,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 823 transitions. [2023-12-25 05:31:21,863 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 823 transitions. Word has length 58 [2023-12-25 05:31:21,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:21,863 INFO L495 AbstractCegarLoop]: Abstraction has 498 states and 823 transitions. [2023-12-25 05:31:21,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2023-12-25 05:31:21,863 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 823 transitions. [2023-12-25 05:31:21,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-25 05:31:21,864 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:21,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:21,886 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 05:31:22,070 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 05:31:22,070 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:22,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:22,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1278538948, now seen corresponding path program 1 times [2023-12-25 05:31:22,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:22,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [992848128] [2023-12-25 05:31:22,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:22,071 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 05:31:22,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:22,072 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 05:31:22,075 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 05:31:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:22,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:31:22,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:22,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:22,579 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:22,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:22,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [992848128] [2023-12-25 05:31:22,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [992848128] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:22,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:22,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:31:22,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431684274] [2023-12-25 05:31:22,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:22,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:31:22,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:22,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:31:22,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:31:22,580 INFO L87 Difference]: Start difference. First operand 498 states and 823 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 05:31:24,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:24,765 INFO L93 Difference]: Finished difference Result 1549 states and 2617 transitions. [2023-12-25 05:31:24,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:31:24,767 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 59 [2023-12-25 05:31:24,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:24,774 INFO L225 Difference]: With dead ends: 1549 [2023-12-25 05:31:24,774 INFO L226 Difference]: Without dead ends: 1089 [2023-12-25 05:31:24,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:31:24,777 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 3121 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 1832 mSolverCounterSat, 604 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3228 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 2436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 604 IncrementalHoareTripleChecker+Valid, 1832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:24,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3228 Valid, 1035 Invalid, 2436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [604 Valid, 1832 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-25 05:31:24,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2023-12-25 05:31:24,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 968. [2023-12-25 05:31:24,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 756 states have (on average 1.6984126984126984) internal successors, (1284), 786 states have internal predecessors, (1284), 174 states have call successors, (174), 36 states have call predecessors, (174), 37 states have return successors, (176), 158 states have call predecessors, (176), 169 states have call successors, (176) [2023-12-25 05:31:24,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1634 transitions. [2023-12-25 05:31:24,821 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1634 transitions. Word has length 59 [2023-12-25 05:31:24,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:24,822 INFO L495 AbstractCegarLoop]: Abstraction has 968 states and 1634 transitions. [2023-12-25 05:31:24,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 05:31:24,822 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1634 transitions. [2023-12-25 05:31:24,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-25 05:31:24,824 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:24,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:24,842 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 05:31:25,031 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 05:31:25,031 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:25,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:25,032 INFO L85 PathProgramCache]: Analyzing trace with hash -141572211, now seen corresponding path program 1 times [2023-12-25 05:31:25,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:25,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2075094066] [2023-12-25 05:31:25,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:25,032 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 05:31:25,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:25,033 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 05:31:25,035 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 05:31:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:25,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-25 05:31:25,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:25,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:25,528 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:25,528 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:25,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2075094066] [2023-12-25 05:31:25,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2075094066] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:25,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:25,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:31:25,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702151193] [2023-12-25 05:31:25,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:25,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:31:25,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:25,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:31:25,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:31:25,529 INFO L87 Difference]: Start difference. First operand 968 states and 1634 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 4 states have call successors, (11), 4 states have call predecessors, (11), 5 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:31:27,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:27,439 INFO L93 Difference]: Finished difference Result 1908 states and 3280 transitions. [2023-12-25 05:31:27,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:31:27,439 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 4 states have call successors, (11), 4 states have call predecessors, (11), 5 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) Word has length 88 [2023-12-25 05:31:27,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:27,444 INFO L225 Difference]: With dead ends: 1908 [2023-12-25 05:31:27,444 INFO L226 Difference]: Without dead ends: 978 [2023-12-25 05:31:27,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-12-25 05:31:27,449 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 1265 mSDsluCounter, 1420 mSDsCounter, 0 mSdLazyCounter, 3142 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 3514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 3142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:27,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1265 Valid, 1786 Invalid, 3514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 3142 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-25 05:31:27,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2023-12-25 05:31:27,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 976. [2023-12-25 05:31:27,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 762 states have (on average 1.6929133858267718) internal successors, (1290), 792 states have internal predecessors, (1290), 174 states have call successors, (174), 36 states have call predecessors, (174), 39 states have return successors, (208), 160 states have call predecessors, (208), 169 states have call successors, (208) [2023-12-25 05:31:27,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1672 transitions. [2023-12-25 05:31:27,543 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1672 transitions. Word has length 88 [2023-12-25 05:31:27,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:27,543 INFO L495 AbstractCegarLoop]: Abstraction has 976 states and 1672 transitions. [2023-12-25 05:31:27,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 4 states have call successors, (11), 4 states have call predecessors, (11), 5 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:31:27,543 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1672 transitions. [2023-12-25 05:31:27,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-25 05:31:27,550 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:27,550 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:27,561 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 05:31:27,758 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 05:31:27,759 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:27,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:27,759 INFO L85 PathProgramCache]: Analyzing trace with hash 154779734, now seen corresponding path program 1 times [2023-12-25 05:31:27,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:27,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1907091157] [2023-12-25 05:31:27,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:27,760 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:31:27,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:27,761 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 05:31:27,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-25 05:31:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:28,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 827 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:31:28,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:28,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:28,173 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:28,173 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:28,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1907091157] [2023-12-25 05:31:28,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1907091157] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:28,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:28,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:31:28,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183620449] [2023-12-25 05:31:28,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:28,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:31:28,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:28,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:31:28,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:31:28,175 INFO L87 Difference]: Start difference. First operand 976 states and 1672 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:31:31,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:31,576 INFO L93 Difference]: Finished difference Result 3614 states and 6327 transitions. [2023-12-25 05:31:31,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 05:31:31,577 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 89 [2023-12-25 05:31:31,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:31,598 INFO L225 Difference]: With dead ends: 3614 [2023-12-25 05:31:31,598 INFO L226 Difference]: Without dead ends: 2676 [2023-12-25 05:31:31,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2023-12-25 05:31:31,608 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 2264 mSDsluCounter, 1910 mSDsCounter, 0 mSdLazyCounter, 4704 mSolverCounterSat, 581 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2332 SdHoareTripleChecker+Valid, 2493 SdHoareTripleChecker+Invalid, 5285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 581 IncrementalHoareTripleChecker+Valid, 4704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:31,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2332 Valid, 2493 Invalid, 5285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [581 Valid, 4704 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-25 05:31:31,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2023-12-25 05:31:31,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2575. [2023-12-25 05:31:31,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2575 states, 2006 states have (on average 1.687936191425723) internal successors, (3386), 2086 states have internal predecessors, (3386), 461 states have call successors, (461), 97 states have call predecessors, (461), 107 states have return successors, (524), 426 states have call predecessors, (524), 456 states have call successors, (524) [2023-12-25 05:31:31,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2575 states to 2575 states and 4371 transitions. [2023-12-25 05:31:31,743 INFO L78 Accepts]: Start accepts. Automaton has 2575 states and 4371 transitions. Word has length 89 [2023-12-25 05:31:31,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:31,743 INFO L495 AbstractCegarLoop]: Abstraction has 2575 states and 4371 transitions. [2023-12-25 05:31:31,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:31:31,744 INFO L276 IsEmpty]: Start isEmpty. Operand 2575 states and 4371 transitions. [2023-12-25 05:31:31,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-25 05:31:31,747 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:31,747 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:31,754 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 05:31:31,954 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 05:31:31,954 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:31,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:31,955 INFO L85 PathProgramCache]: Analyzing trace with hash -457400812, now seen corresponding path program 1 times [2023-12-25 05:31:31,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:31,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1691005224] [2023-12-25 05:31:31,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:31,956 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 05:31:31,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:31,957 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 05:31:31,958 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 05:31:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:32,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:31:32,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:32,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:32,321 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:32,321 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:32,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1691005224] [2023-12-25 05:31:32,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1691005224] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:32,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:32,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:31:32,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687048148] [2023-12-25 05:31:32,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:32,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:31:32,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:32,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:31:32,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:31:32,323 INFO L87 Difference]: Start difference. First operand 2575 states and 4371 transitions. Second operand has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 5 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2023-12-25 05:31:35,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:35,246 INFO L93 Difference]: Finished difference Result 7459 states and 12671 transitions. [2023-12-25 05:31:35,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:31:35,247 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 5 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 90 [2023-12-25 05:31:35,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:35,270 INFO L225 Difference]: With dead ends: 7459 [2023-12-25 05:31:35,270 INFO L226 Difference]: Without dead ends: 4922 [2023-12-25 05:31:35,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2023-12-25 05:31:35,282 INFO L413 NwaCegarLoop]: 586 mSDtfsCounter, 1955 mSDsluCounter, 1869 mSDsCounter, 0 mSdLazyCounter, 4577 mSolverCounterSat, 605 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2030 SdHoareTripleChecker+Valid, 2455 SdHoareTripleChecker+Invalid, 5182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 605 IncrementalHoareTripleChecker+Valid, 4577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:35,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2030 Valid, 2455 Invalid, 5182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [605 Valid, 4577 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-25 05:31:35,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4922 states. [2023-12-25 05:31:35,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4922 to 4595. [2023-12-25 05:31:35,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4595 states, 3425 states have (on average 1.647007299270073) internal successors, (5641), 3608 states have internal predecessors, (5641), 989 states have call successors, (989), 149 states have call predecessors, (989), 180 states have return successors, (1124), 915 states have call predecessors, (1124), 984 states have call successors, (1124) [2023-12-25 05:31:35,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4595 states to 4595 states and 7754 transitions. [2023-12-25 05:31:35,556 INFO L78 Accepts]: Start accepts. Automaton has 4595 states and 7754 transitions. Word has length 90 [2023-12-25 05:31:35,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:35,557 INFO L495 AbstractCegarLoop]: Abstraction has 4595 states and 7754 transitions. [2023-12-25 05:31:35,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 5 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2023-12-25 05:31:35,557 INFO L276 IsEmpty]: Start isEmpty. Operand 4595 states and 7754 transitions. [2023-12-25 05:31:35,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-25 05:31:35,563 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:35,563 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:35,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-25 05:31:35,772 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 05:31:35,772 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:35,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:35,773 INFO L85 PathProgramCache]: Analyzing trace with hash 780705600, now seen corresponding path program 1 times [2023-12-25 05:31:35,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:35,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [958674480] [2023-12-25 05:31:35,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:35,774 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 05:31:35,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:35,775 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 05:31:35,776 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 05:31:36,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:36,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:31:36,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:36,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:36,222 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:36,222 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:36,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [958674480] [2023-12-25 05:31:36,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [958674480] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:36,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:36,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:31:36,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023094112] [2023-12-25 05:31:36,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:36,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:31:36,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:36,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:31:36,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:31:36,223 INFO L87 Difference]: Start difference. First operand 4595 states and 7754 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:31:39,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:39,687 INFO L93 Difference]: Finished difference Result 13685 states and 23544 transitions. [2023-12-25 05:31:39,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 05:31:39,688 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 91 [2023-12-25 05:31:39,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:39,738 INFO L225 Difference]: With dead ends: 13685 [2023-12-25 05:31:39,738 INFO L226 Difference]: Without dead ends: 9819 [2023-12-25 05:31:39,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:31:39,758 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 2574 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 3293 mSolverCounterSat, 533 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2648 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 3826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 533 IncrementalHoareTripleChecker+Valid, 3293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:39,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2648 Valid, 1631 Invalid, 3826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [533 Valid, 3293 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-25 05:31:39,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9819 states. [2023-12-25 05:31:40,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9819 to 9278. [2023-12-25 05:31:40,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9278 states, 6902 states have (on average 1.6467690524485656) internal successors, (11366), 7290 states have internal predecessors, (11366), 1974 states have call successors, (1974), 284 states have call predecessors, (1974), 401 states have return successors, (2496), 1848 states have call predecessors, (2496), 1969 states have call successors, (2496) [2023-12-25 05:31:40,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9278 states to 9278 states and 15836 transitions. [2023-12-25 05:31:40,421 INFO L78 Accepts]: Start accepts. Automaton has 9278 states and 15836 transitions. Word has length 91 [2023-12-25 05:31:40,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:40,421 INFO L495 AbstractCegarLoop]: Abstraction has 9278 states and 15836 transitions. [2023-12-25 05:31:40,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:31:40,422 INFO L276 IsEmpty]: Start isEmpty. Operand 9278 states and 15836 transitions. [2023-12-25 05:31:40,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-25 05:31:40,425 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:40,425 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:40,432 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 05:31:40,631 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 05:31:40,632 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:40,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:40,632 INFO L85 PathProgramCache]: Analyzing trace with hash -2041191480, now seen corresponding path program 1 times [2023-12-25 05:31:40,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:40,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2029345408] [2023-12-25 05:31:40,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:40,633 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 05:31:40,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:40,634 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 05:31:40,665 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 05:31:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:40,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 05:31:40,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:41,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:41,156 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:41,156 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:41,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2029345408] [2023-12-25 05:31:41,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2029345408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:41,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:41,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:31:41,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228739312] [2023-12-25 05:31:41,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:41,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:31:41,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:41,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:31:41,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:31:41,158 INFO L87 Difference]: Start difference. First operand 9278 states and 15836 transitions. Second operand has 9 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2023-12-25 05:31:44,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:44,859 INFO L93 Difference]: Finished difference Result 19838 states and 34090 transitions. [2023-12-25 05:31:44,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 05:31:44,860 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 95 [2023-12-25 05:31:44,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:44,910 INFO L225 Difference]: With dead ends: 19838 [2023-12-25 05:31:44,910 INFO L226 Difference]: Without dead ends: 11289 [2023-12-25 05:31:44,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2023-12-25 05:31:44,937 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 1948 mSDsluCounter, 2088 mSDsCounter, 0 mSdLazyCounter, 4965 mSolverCounterSat, 451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2019 SdHoareTripleChecker+Valid, 2521 SdHoareTripleChecker+Invalid, 5416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 4965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:44,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2019 Valid, 2521 Invalid, 5416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [451 Valid, 4965 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-25 05:31:44,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11289 states. [2023-12-25 05:31:45,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11289 to 10366. [2023-12-25 05:31:45,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10366 states, 7664 states have (on average 1.6200417536534446) internal successors, (12416), 8130 states have internal predecessors, (12416), 2196 states have call successors, (2196), 364 states have call predecessors, (2196), 505 states have return successors, (2952), 2016 states have call predecessors, (2952), 2191 states have call successors, (2952) [2023-12-25 05:31:45,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10366 states to 10366 states and 17564 transitions. [2023-12-25 05:31:45,675 INFO L78 Accepts]: Start accepts. Automaton has 10366 states and 17564 transitions. Word has length 95 [2023-12-25 05:31:45,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:45,675 INFO L495 AbstractCegarLoop]: Abstraction has 10366 states and 17564 transitions. [2023-12-25 05:31:45,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2023-12-25 05:31:45,676 INFO L276 IsEmpty]: Start isEmpty. Operand 10366 states and 17564 transitions. [2023-12-25 05:31:45,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 05:31:45,679 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:45,679 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:45,701 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 05:31:45,886 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 05:31:45,887 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:45,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:45,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1945849127, now seen corresponding path program 1 times [2023-12-25 05:31:45,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:45,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1242328123] [2023-12-25 05:31:45,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:45,888 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 05:31:45,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:45,889 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 05:31:45,922 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 05:31:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:46,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:46,192 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:46,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:46,215 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:46,215 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:46,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1242328123] [2023-12-25 05:31:46,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1242328123] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:46,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:46,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:46,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145178679] [2023-12-25 05:31:46,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:46,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:46,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:46,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:46,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:46,217 INFO L87 Difference]: Start difference. First operand 10366 states and 17564 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-25 05:31:46,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:46,964 INFO L93 Difference]: Finished difference Result 21051 states and 36162 transitions. [2023-12-25 05:31:46,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:31:46,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 102 [2023-12-25 05:31:46,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:47,074 INFO L225 Difference]: With dead ends: 21051 [2023-12-25 05:31:47,075 INFO L226 Difference]: Without dead ends: 10366 [2023-12-25 05:31:47,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 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 05:31:47,100 INFO L413 NwaCegarLoop]: 842 mSDtfsCounter, 234 mSDsluCounter, 1430 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 2272 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:47,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 2272 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:31:47,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10366 states. [2023-12-25 05:31:47,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10366 to 10366. [2023-12-25 05:31:47,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10366 states, 7664 states have (on average 1.592901878914405) internal successors, (12208), 8130 states have internal predecessors, (12208), 2196 states have call successors, (2196), 364 states have call predecessors, (2196), 505 states have return successors, (2952), 2016 states have call predecessors, (2952), 2191 states have call successors, (2952) [2023-12-25 05:31:47,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10366 states to 10366 states and 17356 transitions. [2023-12-25 05:31:47,848 INFO L78 Accepts]: Start accepts. Automaton has 10366 states and 17356 transitions. Word has length 102 [2023-12-25 05:31:47,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:47,848 INFO L495 AbstractCegarLoop]: Abstraction has 10366 states and 17356 transitions. [2023-12-25 05:31:47,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-25 05:31:47,848 INFO L276 IsEmpty]: Start isEmpty. Operand 10366 states and 17356 transitions. [2023-12-25 05:31:47,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-25 05:31:47,851 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:47,851 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:47,861 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 05:31:48,059 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 05:31:48,059 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:48,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:48,060 INFO L85 PathProgramCache]: Analyzing trace with hash 816490285, now seen corresponding path program 1 times [2023-12-25 05:31:48,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:48,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1583599678] [2023-12-25 05:31:48,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:48,061 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 05:31:48,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:48,062 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 05:31:48,093 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 05:31:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:48,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-25 05:31:48,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:48,491 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 05:31:48,492 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:48,492 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:48,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1583599678] [2023-12-25 05:31:48,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1583599678] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:48,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:48,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:31:48,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126153375] [2023-12-25 05:31:48,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:48,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:31:48,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:48,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:31:48,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:31:48,493 INFO L87 Difference]: Start difference. First operand 10366 states and 17356 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 4 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:31:51,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:51,435 INFO L93 Difference]: Finished difference Result 21271 states and 35950 transitions. [2023-12-25 05:31:51,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-25 05:31:51,436 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 4 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) Word has length 107 [2023-12-25 05:31:51,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:51,500 INFO L225 Difference]: With dead ends: 21271 [2023-12-25 05:31:51,501 INFO L226 Difference]: Without dead ends: 11747 [2023-12-25 05:31:51,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2023-12-25 05:31:51,534 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 2010 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 3112 mSolverCounterSat, 473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2086 SdHoareTripleChecker+Valid, 1568 SdHoareTripleChecker+Invalid, 3585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 473 IncrementalHoareTripleChecker+Valid, 3112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:51,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2086 Valid, 1568 Invalid, 3585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 3112 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-25 05:31:51,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11747 states. [2023-12-25 05:31:52,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11747 to 10998. [2023-12-25 05:31:52,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10998 states, 8132 states have (on average 1.5769798327594688) internal successors, (12824), 8642 states have internal predecessors, (12824), 2258 states have call successors, (2258), 420 states have call predecessors, (2258), 607 states have return successors, (3240), 2080 states have call predecessors, (3240), 2253 states have call successors, (3240) [2023-12-25 05:31:52,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10998 states to 10998 states and 18322 transitions. [2023-12-25 05:31:52,605 INFO L78 Accepts]: Start accepts. Automaton has 10998 states and 18322 transitions. Word has length 107 [2023-12-25 05:31:52,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:52,606 INFO L495 AbstractCegarLoop]: Abstraction has 10998 states and 18322 transitions. [2023-12-25 05:31:52,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 4 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:31:52,606 INFO L276 IsEmpty]: Start isEmpty. Operand 10998 states and 18322 transitions. [2023-12-25 05:31:52,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 05:31:52,609 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:52,609 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:52,626 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 05:31:52,817 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 05:31:52,817 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:52,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:52,818 INFO L85 PathProgramCache]: Analyzing trace with hash -18075011, now seen corresponding path program 1 times [2023-12-25 05:31:52,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:52,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1508643659] [2023-12-25 05:31:52,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:52,819 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 05:31:52,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:52,842 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 05:31:52,876 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 05:31:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:53,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 05:31:53,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:53,317 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 05:31:53,317 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:53,317 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:53,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1508643659] [2023-12-25 05:31:53,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1508643659] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:53,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:53,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:31:53,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516750934] [2023-12-25 05:31:53,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:53,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:31:53,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:53,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:31:53,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:31:53,319 INFO L87 Difference]: Start difference. First operand 10998 states and 18322 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 4 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:31:56,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:56,472 INFO L93 Difference]: Finished difference Result 25017 states and 42093 transitions. [2023-12-25 05:31:56,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 05:31:56,473 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 4 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) Word has length 111 [2023-12-25 05:31:56,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:56,640 INFO L225 Difference]: With dead ends: 25017 [2023-12-25 05:31:56,640 INFO L226 Difference]: Without dead ends: 14845 [2023-12-25 05:31:56,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:31:56,736 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 1724 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 2149 mSolverCounterSat, 392 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1802 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 2541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 392 IncrementalHoareTripleChecker+Valid, 2149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:56,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1802 Valid, 1201 Invalid, 2541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [392 Valid, 2149 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-25 05:31:56,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14845 states. [2023-12-25 05:31:57,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14845 to 14443. [2023-12-25 05:31:57,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14443 states, 10601 states have (on average 1.5723044995755118) internal successors, (16668), 11298 states have internal predecessors, (16668), 3090 states have call successors, (3090), 563 states have call predecessors, (3090), 751 states have return successors, (4375), 2791 states have call predecessors, (4375), 3085 states have call successors, (4375) [2023-12-25 05:31:57,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14443 states to 14443 states and 24133 transitions. [2023-12-25 05:31:57,803 INFO L78 Accepts]: Start accepts. Automaton has 14443 states and 24133 transitions. Word has length 111 [2023-12-25 05:31:57,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:57,803 INFO L495 AbstractCegarLoop]: Abstraction has 14443 states and 24133 transitions. [2023-12-25 05:31:57,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 4 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:31:57,803 INFO L276 IsEmpty]: Start isEmpty. Operand 14443 states and 24133 transitions. [2023-12-25 05:31:57,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 05:31:57,806 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:57,806 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:57,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-25 05:31:58,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:31:58,014 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:58,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:58,015 INFO L85 PathProgramCache]: Analyzing trace with hash 2006218041, now seen corresponding path program 1 times [2023-12-25 05:31:58,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:58,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775108246] [2023-12-25 05:31:58,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:58,017 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 05:31:58,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:58,018 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:31:58,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-25 05:31:58,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:58,311 INFO L262 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-25 05:31:58,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:58,561 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-25 05:31:58,562 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:58,562 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:58,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1775108246] [2023-12-25 05:31:58,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1775108246] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:58,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:58,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:31:58,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311771164] [2023-12-25 05:31:58,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:58,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:31:58,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:58,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:31:58,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:31:58,565 INFO L87 Difference]: Start difference. First operand 14443 states and 24133 transitions. Second operand has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:32:02,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:02,327 INFO L93 Difference]: Finished difference Result 28934 states and 48535 transitions. [2023-12-25 05:32:02,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-25 05:32:02,328 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) Word has length 111 [2023-12-25 05:32:02,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:02,439 INFO L225 Difference]: With dead ends: 28934 [2023-12-25 05:32:02,439 INFO L226 Difference]: Without dead ends: 15330 [2023-12-25 05:32:02,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2023-12-25 05:32:02,532 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 1602 mSDsluCounter, 1661 mSDsCounter, 0 mSdLazyCounter, 4082 mSolverCounterSat, 353 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1673 SdHoareTripleChecker+Valid, 2075 SdHoareTripleChecker+Invalid, 4435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 353 IncrementalHoareTripleChecker+Valid, 4082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:32:02,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1673 Valid, 2075 Invalid, 4435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [353 Valid, 4082 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-25 05:32:02,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15330 states. [2023-12-25 05:32:03,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15330 to 14550. [2023-12-25 05:32:03,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14550 states, 10690 states have (on average 1.571842843779233) internal successors, (16803), 11372 states have internal predecessors, (16803), 3110 states have call successors, (3110), 563 states have call predecessors, (3110), 749 states have return successors, (4306), 2824 states have call predecessors, (4306), 3105 states have call successors, (4306) [2023-12-25 05:32:03,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14550 states to 14550 states and 24219 transitions. [2023-12-25 05:32:03,584 INFO L78 Accepts]: Start accepts. Automaton has 14550 states and 24219 transitions. Word has length 111 [2023-12-25 05:32:03,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:03,584 INFO L495 AbstractCegarLoop]: Abstraction has 14550 states and 24219 transitions. [2023-12-25 05:32:03,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:32:03,584 INFO L276 IsEmpty]: Start isEmpty. Operand 14550 states and 24219 transitions. [2023-12-25 05:32:03,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-25 05:32:03,587 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:03,587 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:32:03,595 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 (27)] Ended with exit code 0 [2023-12-25 05:32:03,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 05:32:03,790 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:03,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:03,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1438278883, now seen corresponding path program 1 times [2023-12-25 05:32:03,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:03,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1466840105] [2023-12-25 05:32:03,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:03,791 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:32:03,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:03,792 INFO L229 MonitoredProcess]: Starting monitored process 28 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 05:32:03,793 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 (28)] Waiting until timeout for monitored process [2023-12-25 05:32:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:04,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:32:04,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:04,280 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 05:32:04,280 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:04,280 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:04,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1466840105] [2023-12-25 05:32:04,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1466840105] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:04,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:04,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:32:04,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065112340] [2023-12-25 05:32:04,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:04,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:32:04,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:04,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:32:04,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:32:04,282 INFO L87 Difference]: Start difference. First operand 14550 states and 24219 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-25 05:32:05,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:05,683 INFO L93 Difference]: Finished difference Result 14659 states and 24411 transitions. [2023-12-25 05:32:05,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:32:05,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 112 [2023-12-25 05:32:05,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:05,749 INFO L225 Difference]: With dead ends: 14659 [2023-12-25 05:32:05,749 INFO L226 Difference]: Without dead ends: 14644 [2023-12-25 05:32:05,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:32:05,763 INFO L413 NwaCegarLoop]: 791 mSDtfsCounter, 786 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 2027 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:32:05,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 2027 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 05:32:05,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14644 states. [2023-12-25 05:32:06,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14644 to 14556. [2023-12-25 05:32:06,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14556 states, 10696 states have (on average 1.5715220643231114) internal successors, (16809), 11378 states have internal predecessors, (16809), 3110 states have call successors, (3110), 563 states have call predecessors, (3110), 749 states have return successors, (4306), 2824 states have call predecessors, (4306), 3105 states have call successors, (4306) [2023-12-25 05:32:06,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14556 states to 14556 states and 24225 transitions. [2023-12-25 05:32:06,660 INFO L78 Accepts]: Start accepts. Automaton has 14556 states and 24225 transitions. Word has length 112 [2023-12-25 05:32:06,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:06,660 INFO L495 AbstractCegarLoop]: Abstraction has 14556 states and 24225 transitions. [2023-12-25 05:32:06,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-25 05:32:06,660 INFO L276 IsEmpty]: Start isEmpty. Operand 14556 states and 24225 transitions. [2023-12-25 05:32:06,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-25 05:32:06,663 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:06,663 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:32:06,686 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 (28)] Forceful destruction successful, exit code 0 [2023-12-25 05:32:06,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 05:32:06,873 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:06,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:06,873 INFO L85 PathProgramCache]: Analyzing trace with hash 860192475, now seen corresponding path program 1 times [2023-12-25 05:32:06,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:06,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1210369655] [2023-12-25 05:32:06,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:06,873 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 05:32:06,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:06,875 INFO L229 MonitoredProcess]: Starting monitored process 29 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 05:32:06,876 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 (29)] Waiting until timeout for monitored process [2023-12-25 05:32:07,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:07,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:32:07,192 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:07,277 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 05:32:07,277 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:07,277 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:07,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1210369655] [2023-12-25 05:32:07,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1210369655] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:07,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:07,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:32:07,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347046368] [2023-12-25 05:32:07,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:07,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:32:07,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:07,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:32:07,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:32:07,279 INFO L87 Difference]: Start difference. First operand 14556 states and 24225 transitions. Second operand has 6 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:32:08,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:08,542 INFO L93 Difference]: Finished difference Result 15093 states and 25068 transitions. [2023-12-25 05:32:08,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 05:32:08,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2023-12-25 05:32:08,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:08,670 INFO L225 Difference]: With dead ends: 15093 [2023-12-25 05:32:08,670 INFO L226 Difference]: Without dead ends: 15078 [2023-12-25 05:32:08,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:32:08,694 INFO L413 NwaCegarLoop]: 796 mSDtfsCounter, 781 mSDsluCounter, 2341 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 3137 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:32:08,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 3137 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 05:32:08,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15078 states. [2023-12-25 05:32:09,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15078 to 14952. [2023-12-25 05:32:09,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14952 states, 10991 states have (on average 1.568920025475389) internal successors, (17244), 11674 states have internal predecessors, (17244), 3174 states have call successors, (3174), 601 states have call predecessors, (3174), 786 states have return successors, (4431), 2885 states have call predecessors, (4431), 3169 states have call successors, (4431) [2023-12-25 05:32:09,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14952 states to 14952 states and 24849 transitions. [2023-12-25 05:32:09,666 INFO L78 Accepts]: Start accepts. Automaton has 14952 states and 24849 transitions. Word has length 117 [2023-12-25 05:32:09,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:09,667 INFO L495 AbstractCegarLoop]: Abstraction has 14952 states and 24849 transitions. [2023-12-25 05:32:09,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:32:09,667 INFO L276 IsEmpty]: Start isEmpty. Operand 14952 states and 24849 transitions. [2023-12-25 05:32:09,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-25 05:32:09,670 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:09,670 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:32:09,679 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 (29)] Forceful destruction successful, exit code 0 [2023-12-25 05:32:09,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 05:32:09,880 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:09,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:09,880 INFO L85 PathProgramCache]: Analyzing trace with hash -84341613, now seen corresponding path program 1 times [2023-12-25 05:32:09,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:09,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [209579603] [2023-12-25 05:32:09,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:09,881 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 05:32:09,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:09,882 INFO L229 MonitoredProcess]: Starting monitored process 30 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 05:32:09,886 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 (30)] Waiting until timeout for monitored process [2023-12-25 05:32:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:10,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-25 05:32:10,184 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:10,306 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:32:10,306 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:10,306 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:10,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [209579603] [2023-12-25 05:32:10,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [209579603] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:10,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:10,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:32:10,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743887084] [2023-12-25 05:32:10,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:10,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:32:10,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:10,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:32:10,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:32:10,308 INFO L87 Difference]: Start difference. First operand 14952 states and 24849 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:32:12,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:12,818 INFO L93 Difference]: Finished difference Result 29935 states and 49879 transitions. [2023-12-25 05:32:12,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:32:12,819 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) Word has length 126 [2023-12-25 05:32:12,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:12,919 INFO L225 Difference]: With dead ends: 29935 [2023-12-25 05:32:12,919 INFO L226 Difference]: Without dead ends: 15030 [2023-12-25 05:32:12,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-25 05:32:12,977 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 1239 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 2591 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1239 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 2929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 2591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:32:12,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1239 Valid, 1466 Invalid, 2929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 2591 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-25 05:32:12,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15030 states. [2023-12-25 05:32:13,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15030 to 14952. [2023-12-25 05:32:13,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14952 states, 10991 states have (on average 1.567009371303794) internal successors, (17223), 11674 states have internal predecessors, (17223), 3174 states have call successors, (3174), 601 states have call predecessors, (3174), 786 states have return successors, (4431), 2885 states have call predecessors, (4431), 3169 states have call successors, (4431) [2023-12-25 05:32:14,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14952 states to 14952 states and 24828 transitions. [2023-12-25 05:32:14,033 INFO L78 Accepts]: Start accepts. Automaton has 14952 states and 24828 transitions. Word has length 126 [2023-12-25 05:32:14,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:14,033 INFO L495 AbstractCegarLoop]: Abstraction has 14952 states and 24828 transitions. [2023-12-25 05:32:14,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:32:14,033 INFO L276 IsEmpty]: Start isEmpty. Operand 14952 states and 24828 transitions. [2023-12-25 05:32:14,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-25 05:32:14,037 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:14,037 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:32:14,062 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 (30)] Forceful destruction successful, exit code 0 [2023-12-25 05:32:14,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 05:32:14,246 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:14,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:14,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1824277075, now seen corresponding path program 1 times [2023-12-25 05:32:14,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:14,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1255648939] [2023-12-25 05:32:14,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:14,248 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 05:32:14,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:14,249 INFO L229 MonitoredProcess]: Starting monitored process 31 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 05:32:14,251 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 (31)] Waiting until timeout for monitored process [2023-12-25 05:32:14,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:14,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 890 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:32:14,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:14,731 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:32:14,731 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:14,731 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:14,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1255648939] [2023-12-25 05:32:14,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1255648939] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:14,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:14,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:32:14,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372001041] [2023-12-25 05:32:14,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:14,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:32:14,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:14,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:32:14,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:32:14,732 INFO L87 Difference]: Start difference. First operand 14952 states and 24828 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 4 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:32:19,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:19,148 INFO L93 Difference]: Finished difference Result 44125 states and 74880 transitions. [2023-12-25 05:32:19,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:32:19,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 4 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 127 [2023-12-25 05:32:19,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:19,301 INFO L225 Difference]: With dead ends: 44125 [2023-12-25 05:32:19,301 INFO L226 Difference]: Without dead ends: 29172 [2023-12-25 05:32:19,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:32:19,354 INFO L413 NwaCegarLoop]: 464 mSDtfsCounter, 2129 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 2214 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2248 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 2667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 2214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:32:19,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2248 Valid, 1279 Invalid, 2667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 2214 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-25 05:32:19,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29172 states. [2023-12-25 05:32:21,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29172 to 27685. [2023-12-25 05:32:21,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27685 states, 19643 states have (on average 1.5570432215038437) internal successors, (30585), 21120 states have internal predecessors, (30585), 6648 states have call successors, (6648), 986 states have call predecessors, (6648), 1393 states have return successors, (9610), 6300 states have call predecessors, (9610), 6643 states have call successors, (9610) [2023-12-25 05:32:21,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27685 states to 27685 states and 46843 transitions. [2023-12-25 05:32:21,676 INFO L78 Accepts]: Start accepts. Automaton has 27685 states and 46843 transitions. Word has length 127 [2023-12-25 05:32:21,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:21,679 INFO L495 AbstractCegarLoop]: Abstraction has 27685 states and 46843 transitions. [2023-12-25 05:32:21,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 4 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:32:21,679 INFO L276 IsEmpty]: Start isEmpty. Operand 27685 states and 46843 transitions. [2023-12-25 05:32:21,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 05:32:21,689 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:21,689 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:32:21,701 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 (31)] Forceful destruction successful, exit code 0 [2023-12-25 05:32:21,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 05:32:21,899 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:21,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:21,899 INFO L85 PathProgramCache]: Analyzing trace with hash -517860543, now seen corresponding path program 1 times [2023-12-25 05:32:21,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:21,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126516577] [2023-12-25 05:32:21,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:21,900 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 05:32:21,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:21,945 INFO L229 MonitoredProcess]: Starting monitored process 32 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 05:32:21,952 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 (32)] Waiting until timeout for monitored process [2023-12-25 05:32:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:22,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 902 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 05:32:22,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:22,277 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-25 05:32:22,277 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:22,277 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:22,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [126516577] [2023-12-25 05:32:22,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [126516577] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:22,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:22,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:32:22,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060832752] [2023-12-25 05:32:22,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:22,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:32:22,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:22,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:32:22,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:32:22,279 INFO L87 Difference]: Start difference. First operand 27685 states and 46843 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-25 05:32:24,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:24,095 INFO L93 Difference]: Finished difference Result 28000 states and 47488 transitions. [2023-12-25 05:32:24,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:32:24,095 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 135 [2023-12-25 05:32:24,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:24,221 INFO L225 Difference]: With dead ends: 28000 [2023-12-25 05:32:24,221 INFO L226 Difference]: Without dead ends: 27985 [2023-12-25 05:32:24,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 133 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 05:32:24,236 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 50 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 2452 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:32:24,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 2452 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:32:24,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27985 states. [2023-12-25 05:32:26,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27985 to 27727. [2023-12-25 05:32:26,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27727 states, 19685 states have (on average 1.5551435102870206) internal successors, (30613), 21162 states have internal predecessors, (30613), 6648 states have call successors, (6648), 986 states have call predecessors, (6648), 1393 states have return successors, (9610), 6300 states have call predecessors, (9610), 6643 states have call successors, (9610) [2023-12-25 05:32:26,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27727 states to 27727 states and 46871 transitions. [2023-12-25 05:32:26,452 INFO L78 Accepts]: Start accepts. Automaton has 27727 states and 46871 transitions. Word has length 135 [2023-12-25 05:32:26,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:26,452 INFO L495 AbstractCegarLoop]: Abstraction has 27727 states and 46871 transitions. [2023-12-25 05:32:26,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-25 05:32:26,453 INFO L276 IsEmpty]: Start isEmpty. Operand 27727 states and 46871 transitions. [2023-12-25 05:32:26,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-25 05:32:26,457 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:26,458 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:32:26,467 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 (32)] Forceful destruction successful, exit code 0 [2023-12-25 05:32:26,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 05:32:26,667 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:26,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:26,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1877799367, now seen corresponding path program 1 times [2023-12-25 05:32:26,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:26,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [958234748] [2023-12-25 05:32:26,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:26,668 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 05:32:26,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:26,669 INFO L229 MonitoredProcess]: Starting monitored process 33 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 05:32:26,699 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 (33)] Waiting until timeout for monitored process [2023-12-25 05:32:26,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:26,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 942 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 05:32:26,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:27,137 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 54 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-25 05:32:27,137 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:32:27,503 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 05:32:27,504 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:27,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [958234748] [2023-12-25 05:32:27,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [958234748] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:32:27,504 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:32:27,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2023-12-25 05:32:27,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123339670] [2023-12-25 05:32:27,504 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:32:27,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-25 05:32:27,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:27,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-25 05:32:27,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-12-25 05:32:27,505 INFO L87 Difference]: Start difference. First operand 27727 states and 46871 transitions. Second operand has 15 states, 15 states have (on average 10.733333333333333) internal successors, (161), 13 states have internal predecessors, (161), 8 states have call successors, (33), 5 states have call predecessors, (33), 10 states have return successors, (34), 10 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-25 05:32:37,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:37,152 INFO L93 Difference]: Finished difference Result 91182 states and 156383 transitions. [2023-12-25 05:32:37,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-25 05:32:37,153 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 10.733333333333333) internal successors, (161), 13 states have internal predecessors, (161), 8 states have call successors, (33), 5 states have call predecessors, (33), 10 states have return successors, (34), 10 states have call predecessors, (34), 7 states have call successors, (34) Word has length 163 [2023-12-25 05:32:37,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:37,571 INFO L225 Difference]: With dead ends: 91182 [2023-12-25 05:32:37,572 INFO L226 Difference]: Without dead ends: 63505 [2023-12-25 05:32:37,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2023-12-25 05:32:37,690 INFO L413 NwaCegarLoop]: 777 mSDtfsCounter, 6785 mSDsluCounter, 3401 mSDsCounter, 0 mSdLazyCounter, 7030 mSolverCounterSat, 1957 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6900 SdHoareTripleChecker+Valid, 4178 SdHoareTripleChecker+Invalid, 8987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1957 IncrementalHoareTripleChecker+Valid, 7030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:32:37,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6900 Valid, 4178 Invalid, 8987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1957 Valid, 7030 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-25 05:32:37,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63505 states. [2023-12-25 05:32:42,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63505 to 63142. [2023-12-25 05:32:42,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63142 states, 43950 states have (on average 1.5506939704209328) internal successors, (68153), 47299 states have internal predecessors, (68153), 16147 states have call successors, (16147), 1968 states have call predecessors, (16147), 3044 states have return successors, (24291), 15698 states have call predecessors, (24291), 16142 states have call successors, (24291) [2023-12-25 05:32:43,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63142 states to 63142 states and 108591 transitions. [2023-12-25 05:32:43,509 INFO L78 Accepts]: Start accepts. Automaton has 63142 states and 108591 transitions. Word has length 163 [2023-12-25 05:32:43,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:43,510 INFO L495 AbstractCegarLoop]: Abstraction has 63142 states and 108591 transitions. [2023-12-25 05:32:43,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 10.733333333333333) internal successors, (161), 13 states have internal predecessors, (161), 8 states have call successors, (33), 5 states have call predecessors, (33), 10 states have return successors, (34), 10 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-25 05:32:43,510 INFO L276 IsEmpty]: Start isEmpty. Operand 63142 states and 108591 transitions. [2023-12-25 05:32:43,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-25 05:32:43,523 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:43,524 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:32:43,533 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 (33)] Ended with exit code 0 [2023-12-25 05:32:43,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 05:32:43,735 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:43,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:43,735 INFO L85 PathProgramCache]: Analyzing trace with hash -462344140, now seen corresponding path program 1 times [2023-12-25 05:32:43,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:43,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1366581709] [2023-12-25 05:32:43,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:43,736 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 05:32:43,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:43,737 INFO L229 MonitoredProcess]: Starting monitored process 34 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 05:32:43,771 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 (34)] Waiting until timeout for monitored process [2023-12-25 05:32:44,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:44,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:32:44,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:44,051 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:32:44,051 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:44,051 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:44,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1366581709] [2023-12-25 05:32:44,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1366581709] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:44,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:44,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:32:44,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056181682] [2023-12-25 05:32:44,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:44,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:32:44,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:44,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:32:44,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:32:44,053 INFO L87 Difference]: Start difference. First operand 63142 states and 108591 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-25 05:32:50,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:50,511 INFO L93 Difference]: Finished difference Result 126659 states and 219848 transitions. [2023-12-25 05:32:50,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:32:50,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 164 [2023-12-25 05:32:50,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:51,036 INFO L225 Difference]: With dead ends: 126659 [2023-12-25 05:32:51,037 INFO L226 Difference]: Without dead ends: 63523 [2023-12-25 05:32:51,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 162 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 05:32:51,388 INFO L413 NwaCegarLoop]: 773 mSDtfsCounter, 18 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2284 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:32:51,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2284 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:32:51,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63523 states. [2023-12-25 05:32:56,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63523 to 63489. [2023-12-25 05:32:56,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63489 states, 44243 states have (on average 1.5419162353366633) internal successors, (68219), 47558 states have internal predecessors, (68219), 16084 states have call successors, (16084), 2161 states have call predecessors, (16084), 3161 states have return successors, (23844), 15593 states have call predecessors, (23844), 16079 states have call successors, (23844) [2023-12-25 05:32:57,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63489 states to 63489 states and 108147 transitions. [2023-12-25 05:32:57,401 INFO L78 Accepts]: Start accepts. Automaton has 63489 states and 108147 transitions. Word has length 164 [2023-12-25 05:32:57,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:57,401 INFO L495 AbstractCegarLoop]: Abstraction has 63489 states and 108147 transitions. [2023-12-25 05:32:57,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-25 05:32:57,401 INFO L276 IsEmpty]: Start isEmpty. Operand 63489 states and 108147 transitions. [2023-12-25 05:32:57,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-12-25 05:32:57,414 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:57,414 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:32:57,425 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 (34)] Forceful destruction successful, exit code 0 [2023-12-25 05:32:57,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 05:32:57,624 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:57,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:57,624 INFO L85 PathProgramCache]: Analyzing trace with hash -374414011, now seen corresponding path program 1 times [2023-12-25 05:32:57,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:57,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [165390302] [2023-12-25 05:32:57,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:57,625 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 05:32:57,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:57,626 INFO L229 MonitoredProcess]: Starting monitored process 35 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 05:32:57,626 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 (35)] Waiting until timeout for monitored process [2023-12-25 05:32:57,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:57,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 946 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:32:57,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:57,980 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-12-25 05:32:57,980 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:57,980 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:57,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [165390302] [2023-12-25 05:32:57,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [165390302] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:57,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:57,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:32:57,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127531052] [2023-12-25 05:32:57,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:57,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:32:57,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:57,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:32:57,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:32:57,982 INFO L87 Difference]: Start difference. First operand 63489 states and 108147 transitions. Second operand has 8 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-25 05:33:03,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:03,372 INFO L93 Difference]: Finished difference Result 90791 states and 153672 transitions. [2023-12-25 05:33:03,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:33:03,373 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 167 [2023-12-25 05:33:03,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:03,760 INFO L225 Difference]: With dead ends: 90791 [2023-12-25 05:33:03,760 INFO L226 Difference]: Without dead ends: 62632 [2023-12-25 05:33:03,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:33:03,877 INFO L413 NwaCegarLoop]: 785 mSDtfsCounter, 25 mSDsluCounter, 4693 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 5478 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:03,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 5478 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:03,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62632 states. [2023-12-25 05:33:08,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62632 to 62632. [2023-12-25 05:33:09,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62632 states, 43580 states have (on average 1.5447682423129876) internal successors, (67321), 46897 states have internal predecessors, (67321), 15893 states have call successors, (15893), 2160 states have call predecessors, (15893), 3158 states have return successors, (23249), 15398 states have call predecessors, (23249), 15888 states have call successors, (23249) [2023-12-25 05:33:09,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62632 states to 62632 states and 106463 transitions. [2023-12-25 05:33:09,683 INFO L78 Accepts]: Start accepts. Automaton has 62632 states and 106463 transitions. Word has length 167 [2023-12-25 05:33:09,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:09,684 INFO L495 AbstractCegarLoop]: Abstraction has 62632 states and 106463 transitions. [2023-12-25 05:33:09,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-25 05:33:09,684 INFO L276 IsEmpty]: Start isEmpty. Operand 62632 states and 106463 transitions. [2023-12-25 05:33:09,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2023-12-25 05:33:09,695 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:09,695 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:09,704 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 (35)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:09,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 05:33:09,904 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:09,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:09,904 INFO L85 PathProgramCache]: Analyzing trace with hash 2018561070, now seen corresponding path program 1 times [2023-12-25 05:33:09,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:09,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [508465119] [2023-12-25 05:33:09,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:09,905 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 05:33:09,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:09,906 INFO L229 MonitoredProcess]: Starting monitored process 36 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 05:33:09,908 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 (36)] Waiting until timeout for monitored process [2023-12-25 05:33:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:10,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 1411 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:33:10,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:10,368 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2023-12-25 05:33:10,369 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:10,369 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:10,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [508465119] [2023-12-25 05:33:10,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [508465119] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:10,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:10,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:33:10,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640289690] [2023-12-25 05:33:10,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:10,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:33:10,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:10,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:33:10,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:33:10,370 INFO L87 Difference]: Start difference. First operand 62632 states and 106463 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-25 05:33:16,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:16,553 INFO L93 Difference]: Finished difference Result 129666 states and 224280 transitions. [2023-12-25 05:33:16,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:33:16,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 283 [2023-12-25 05:33:16,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:17,235 INFO L225 Difference]: With dead ends: 129666 [2023-12-25 05:33:17,236 INFO L226 Difference]: Without dead ends: 67072 [2023-12-25 05:33:17,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 280 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 05:33:17,447 INFO L413 NwaCegarLoop]: 812 mSDtfsCounter, 27 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 2384 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:17,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 2384 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:33:17,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67072 states. [2023-12-25 05:33:22,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67072 to 62860. [2023-12-25 05:33:22,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62860 states, 43808 states have (on average 1.541932980277575) internal successors, (67549), 47125 states have internal predecessors, (67549), 15893 states have call successors, (15893), 2160 states have call predecessors, (15893), 3158 states have return successors, (23249), 15398 states have call predecessors, (23249), 15888 states have call successors, (23249) [2023-12-25 05:33:23,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62860 states to 62860 states and 106691 transitions. [2023-12-25 05:33:23,349 INFO L78 Accepts]: Start accepts. Automaton has 62860 states and 106691 transitions. Word has length 283 [2023-12-25 05:33:23,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:23,350 INFO L495 AbstractCegarLoop]: Abstraction has 62860 states and 106691 transitions. [2023-12-25 05:33:23,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-25 05:33:23,350 INFO L276 IsEmpty]: Start isEmpty. Operand 62860 states and 106691 transitions. [2023-12-25 05:33:23,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-12-25 05:33:23,359 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:23,359 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:33:23,371 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 (36)] Ended with exit code 0 [2023-12-25 05:33:23,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 05:33:23,571 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:23,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:23,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1678027993, now seen corresponding path program 1 times [2023-12-25 05:33:23,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:23,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [976148325] [2023-12-25 05:33:23,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:23,572 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 05:33:23,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:23,573 INFO L229 MonitoredProcess]: Starting monitored process 37 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 05:33:23,600 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 (37)] Waiting until timeout for monitored process [2023-12-25 05:33:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:24,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 1517 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-25 05:33:24,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:24,218 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2023-12-25 05:33:24,218 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:33:24,650 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2023-12-25 05:33:24,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:24,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [976148325] [2023-12-25 05:33:24,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [976148325] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:33:24,651 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:33:24,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2023-12-25 05:33:24,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481507147] [2023-12-25 05:33:24,651 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:33:24,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 05:33:24,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:24,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 05:33:24,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-25 05:33:24,652 INFO L87 Difference]: Start difference. First operand 62860 states and 106691 transitions. Second operand has 10 states, 10 states have (on average 20.0) internal successors, (200), 10 states have internal predecessors, (200), 6 states have call successors, (45), 5 states have call predecessors, (45), 3 states have return successors, (43), 6 states have call predecessors, (43), 5 states have call successors, (43) [2023-12-25 05:33:41,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:41,013 INFO L93 Difference]: Finished difference Result 178190 states and 310832 transitions. [2023-12-25 05:33:41,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-25 05:33:41,014 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 20.0) internal successors, (200), 10 states have internal predecessors, (200), 6 states have call successors, (45), 5 states have call predecessors, (45), 3 states have return successors, (43), 6 states have call predecessors, (43), 5 states have call successors, (43) Word has length 298 [2023-12-25 05:33:41,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:42,140 INFO L225 Difference]: With dead ends: 178190 [2023-12-25 05:33:42,140 INFO L226 Difference]: Without dead ends: 115365 [2023-12-25 05:33:42,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 619 GetRequests, 596 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=167, Invalid=433, Unknown=0, NotChecked=0, Total=600 [2023-12-25 05:33:42,580 INFO L413 NwaCegarLoop]: 796 mSDtfsCounter, 3114 mSDsluCounter, 2381 mSDsCounter, 0 mSdLazyCounter, 6219 mSolverCounterSat, 1073 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3239 SdHoareTripleChecker+Valid, 3177 SdHoareTripleChecker+Invalid, 7292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1073 IncrementalHoareTripleChecker+Valid, 6219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:42,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3239 Valid, 3177 Invalid, 7292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1073 Valid, 6219 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-25 05:33:42,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115365 states.