/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_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:30:24,748 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:30:24,806 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 05:30:24,809 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:30:24,809 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:30:24,821 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:30:24,822 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:30:24,822 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:30:24,822 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:30:24,822 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:30:24,823 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:30:24,823 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:30:24,823 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:30:24,823 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:30:24,824 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:30:24,826 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:30:24,827 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:30:24,829 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:30:24,829 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:30:24,830 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:30:24,830 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:30:24,832 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:30:24,832 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:30:24,832 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:30:24,832 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:30:24,832 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:30:24,832 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:30:24,833 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:30:24,833 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:30:24,833 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:30:24,833 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:30:24,833 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:30:24,834 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:30:24,834 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:30:24,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:30:24,834 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:30:24,834 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:30:24,834 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:30:24,834 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:30:24,834 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:30:24,835 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:30:24,835 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:30:24,835 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:30:24,835 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:30:24,836 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:30:24,836 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:30:24,836 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:30:24,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:30:24,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:30:24,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:30:24,996 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:30:24,996 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:30:24,998 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product22.cil.c [2023-12-25 05:30:26,127 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:30:26,440 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:30:26,441 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product22.cil.c [2023-12-25 05:30:26,459 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dc831933/4324fce1b3f24a12b09070554b7f07fb/FLAGec9c49bce [2023-12-25 05:30:26,471 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dc831933/4324fce1b3f24a12b09070554b7f07fb [2023-12-25 05:30:26,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:30:26,474 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:30:26,477 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:30:26,477 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:30:26,480 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:30:26,481 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:30:26" (1/1) ... [2023-12-25 05:30:26,481 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@536df827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:26, skipping insertion in model container [2023-12-25 05:30:26,482 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:30:26" (1/1) ... [2023-12-25 05:30:26,539 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:30:26,676 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_product22.cil.c[1545,1558] [2023-12-25 05:30:27,049 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:30:27,059 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:30:27,072 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:30:27,074 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_product22.cil.c[1545,1558] [2023-12-25 05:30:27,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:30:27,190 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:30:27,197 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2023-12-25 05:30:27,199 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [57] [2023-12-25 05:30:27,199 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [421] [2023-12-25 05:30:27,199 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1088] [2023-12-25 05:30:27,199 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1454] [2023-12-25 05:30:27,199 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1466] [2023-12-25 05:30:27,199 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1586] [2023-12-25 05:30:27,199 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1621] [2023-12-25 05:30:27,199 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3188] [2023-12-25 05:30:27,200 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [3279] [2023-12-25 05:30:27,202 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_product22.cil.c[1545,1558] [2023-12-25 05:30:27,252 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:30:27,278 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:30:27,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:27 WrapperNode [2023-12-25 05:30:27,280 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:30:27,281 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:30:27,281 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:30:27,281 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:30:27,286 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:27" (1/1) ... [2023-12-25 05:30:27,308 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:27" (1/1) ... [2023-12-25 05:30:27,344 INFO L138 Inliner]: procedures = 96, calls = 345, calls flagged for inlining = 26, calls inlined = 22, statements flattened = 825 [2023-12-25 05:30:27,345 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:30:27,345 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:30:27,345 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:30:27,345 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:30:27,352 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:27" (1/1) ... [2023-12-25 05:30:27,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:27" (1/1) ... [2023-12-25 05:30:27,358 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:27" (1/1) ... [2023-12-25 05:30:27,378 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 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 05:30:27,379 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:27" (1/1) ... [2023-12-25 05:30:27,379 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:27" (1/1) ... [2023-12-25 05:30:27,410 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:27" (1/1) ... [2023-12-25 05:30:27,434 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:27" (1/1) ... [2023-12-25 05:30:27,439 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:27" (1/1) ... [2023-12-25 05:30:27,455 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:27" (1/1) ... [2023-12-25 05:30:27,466 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:30:27,467 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:30:27,467 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:30:27,467 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:30:27,468 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:27" (1/1) ... [2023-12-25 05:30:27,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:30:27,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:30:27,507 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 05:30:27,529 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 05:30:27,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:30:27,535 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-25 05:30:27,535 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-25 05:30:27,535 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-25 05:30:27,535 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-25 05:30:27,536 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-25 05:30:27,536 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-25 05:30:27,536 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-25 05:30:27,536 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-25 05:30:27,537 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-25 05:30:27,537 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-25 05:30:27,539 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-25 05:30:27,539 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-25 05:30:27,539 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-25 05:30:27,539 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-25 05:30:27,539 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-25 05:30:27,539 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-25 05:30:27,539 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-25 05:30:27,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-25 05:30:27,539 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-25 05:30:27,539 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-25 05:30:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-25 05:30:27,540 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-25 05:30:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-25 05:30:27,540 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-25 05:30:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:30:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:30:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:30:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:30:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-25 05:30:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-25 05:30:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-25 05:30:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-25 05:30:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-25 05:30:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-25 05:30:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-25 05:30:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-25 05:30:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-25 05:30:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-25 05:30:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-25 05:30:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-25 05:30:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-25 05:30:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-25 05:30:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-25 05:30:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-25 05:30:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-25 05:30:27,541 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-25 05:30:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-25 05:30:27,541 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-25 05:30:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-25 05:30:27,542 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-25 05:30:27,542 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-25 05:30:27,542 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-25 05:30:27,542 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-25 05:30:27,542 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-25 05:30:27,542 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-25 05:30:27,542 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-25 05:30:27,543 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-25 05:30:27,543 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-25 05:30:27,543 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-25 05:30:27,544 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-25 05:30:27,544 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-25 05:30:27,544 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-25 05:30:27,544 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-25 05:30:27,544 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-25 05:30:27,544 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__twothirdsfull [2023-12-25 05:30:27,545 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__twothirdsfull [2023-12-25 05:30:27,545 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2023-12-25 05:30:27,545 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2023-12-25 05:30:27,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:30:27,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:30:27,545 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-25 05:30:27,545 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-25 05:30:27,709 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:30:27,712 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:30:28,640 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:30:28,717 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:30:28,717 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:30:28,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:30:28 BoogieIcfgContainer [2023-12-25 05:30:28,717 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:30:28,719 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:30:28,719 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:30:28,721 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:30:28,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:30:26" (1/3) ... [2023-12-25 05:30:28,721 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4740fa22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:30:28, skipping insertion in model container [2023-12-25 05:30:28,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:27" (2/3) ... [2023-12-25 05:30:28,722 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4740fa22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:30:28, skipping insertion in model container [2023-12-25 05:30:28,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:30:28" (3/3) ... [2023-12-25 05:30:28,722 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product22.cil.c [2023-12-25 05:30:28,733 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:30:28,734 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:30:28,768 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:30:28,772 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;@59dfa1d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:30:28,772 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:30:28,777 INFO L276 IsEmpty]: Start isEmpty. Operand has 551 states, 426 states have (on average 1.7253521126760563) internal successors, (735), 449 states have internal predecessors, (735), 98 states have call successors, (98), 25 states have call predecessors, (98), 25 states have return successors, (98), 91 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-25 05:30:28,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-25 05:30:28,786 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:28,787 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 05:30:28,787 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:28,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:28,790 INFO L85 PathProgramCache]: Analyzing trace with hash -749855397, now seen corresponding path program 1 times [2023-12-25 05:30:28,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:28,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [60525814] [2023-12-25 05:30:28,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:28,799 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 05:30:28,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:28,801 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 05:30:28,807 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 05:30:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:29,130 INFO L262 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:30:29,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:29,169 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 05:30:29,169 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:29,170 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:29,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [60525814] [2023-12-25 05:30:29,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [60525814] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:29,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:29,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:30:29,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871599517] [2023-12-25 05:30:29,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:29,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:30:29,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:29,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:30:29,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:30:29,209 INFO L87 Difference]: Start difference. First operand has 551 states, 426 states have (on average 1.7253521126760563) internal successors, (735), 449 states have internal predecessors, (735), 98 states have call successors, (98), 25 states have call predecessors, (98), 25 states have return successors, (98), 91 states have call predecessors, (98), 98 states have call successors, (98) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 05:30:29,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:29,316 INFO L93 Difference]: Finished difference Result 569 states and 958 transitions. [2023-12-25 05:30:29,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:30:29,319 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 50 [2023-12-25 05:30:29,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:29,346 INFO L225 Difference]: With dead ends: 569 [2023-12-25 05:30:29,346 INFO L226 Difference]: Without dead ends: 547 [2023-12-25 05:30:29,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 49 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 05:30:29,351 INFO L413 NwaCegarLoop]: 908 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, 908 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 05:30:29,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 908 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:29,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2023-12-25 05:30:29,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2023-12-25 05:30:29,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 424 states have (on average 1.7169811320754718) internal successors, (728), 445 states have internal predecessors, (728), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:30:29,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 919 transitions. [2023-12-25 05:30:29,413 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 919 transitions. Word has length 50 [2023-12-25 05:30:29,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:29,414 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 919 transitions. [2023-12-25 05:30:29,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 05:30:29,415 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 919 transitions. [2023-12-25 05:30:29,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-25 05:30:29,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:29,418 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 05:30:29,445 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 05:30:29,625 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 05:30:29,625 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:29,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:29,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1902613931, now seen corresponding path program 1 times [2023-12-25 05:30:29,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:29,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167952437] [2023-12-25 05:30:29,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:29,627 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 05:30:29,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:29,631 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 05:30:29,632 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 05:30:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:29,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:30:29,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:30,012 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 05:30:30,012 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:30,012 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:30,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167952437] [2023-12-25 05:30:30,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [167952437] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:30,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:30,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:30,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371852249] [2023-12-25 05:30:30,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:30,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:30:30,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:30,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:30:30,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:30:30,015 INFO L87 Difference]: Start difference. First operand 547 states and 919 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:30:30,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:30,114 INFO L93 Difference]: Finished difference Result 1082 states and 1820 transitions. [2023-12-25 05:30:30,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:30:30,114 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 51 [2023-12-25 05:30:30,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:30,117 INFO L225 Difference]: With dead ends: 1082 [2023-12-25 05:30:30,117 INFO L226 Difference]: Without dead ends: 547 [2023-12-25 05:30:30,120 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 05:30:30,121 INFO L413 NwaCegarLoop]: 893 mSDtfsCounter, 14 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2674 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 05:30:30,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2674 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:30,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2023-12-25 05:30:30,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2023-12-25 05:30:30,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 424 states have (on average 1.7146226415094339) internal successors, (727), 445 states have internal predecessors, (727), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:30:30,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 918 transitions. [2023-12-25 05:30:30,143 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 918 transitions. Word has length 51 [2023-12-25 05:30:30,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:30,144 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 918 transitions. [2023-12-25 05:30:30,144 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:30:30,144 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 918 transitions. [2023-12-25 05:30:30,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-25 05:30:30,146 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:30,146 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 05:30:30,153 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 05:30:30,352 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 05:30:30,353 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:30,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:30,355 INFO L85 PathProgramCache]: Analyzing trace with hash -597670318, now seen corresponding path program 1 times [2023-12-25 05:30:30,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:30,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573835106] [2023-12-25 05:30:30,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:30,355 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:30,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:30,356 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 05:30:30,387 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 05:30:30,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:30,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:30:30,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:30,608 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 05:30:30,608 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:30,608 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:30,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1573835106] [2023-12-25 05:30:30,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1573835106] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:30,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:30,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:30,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344949550] [2023-12-25 05:30:30,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:30,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:30:30,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:30,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:30:30,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:30:30,610 INFO L87 Difference]: Start difference. First operand 547 states and 918 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:30:30,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:30,691 INFO L93 Difference]: Finished difference Result 1082 states and 1819 transitions. [2023-12-25 05:30:30,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:30:30,691 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 52 [2023-12-25 05:30:30,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:30,694 INFO L225 Difference]: With dead ends: 1082 [2023-12-25 05:30:30,694 INFO L226 Difference]: Without dead ends: 547 [2023-12-25 05:30:30,696 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 05:30:30,697 INFO L413 NwaCegarLoop]: 893 mSDtfsCounter, 12 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2674 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:30,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2674 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:30,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2023-12-25 05:30:30,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2023-12-25 05:30:30,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 424 states have (on average 1.7122641509433962) internal successors, (726), 445 states have internal predecessors, (726), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:30:30,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 917 transitions. [2023-12-25 05:30:30,712 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 917 transitions. Word has length 52 [2023-12-25 05:30:30,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:30,712 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 917 transitions. [2023-12-25 05:30:30,712 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:30:30,712 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 917 transitions. [2023-12-25 05:30:30,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-25 05:30:30,714 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:30,714 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 05:30:30,723 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 05:30:30,921 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 05:30:30,921 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:30,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:30,922 INFO L85 PathProgramCache]: Analyzing trace with hash 989901967, now seen corresponding path program 1 times [2023-12-25 05:30:30,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:30,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1304506457] [2023-12-25 05:30:30,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:30,922 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 05:30:30,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:30,924 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 05:30:30,927 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 05:30:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:31,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:30:31,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:31,177 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 05:30:31,178 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:31,178 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:31,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1304506457] [2023-12-25 05:30:31,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1304506457] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:31,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:31,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:31,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357635719] [2023-12-25 05:30:31,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:31,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:30:31,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:31,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:30:31,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:30:31,179 INFO L87 Difference]: Start difference. First operand 547 states and 917 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:30:31,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:31,253 INFO L93 Difference]: Finished difference Result 1082 states and 1818 transitions. [2023-12-25 05:30:31,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:30:31,254 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2023-12-25 05:30:31,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:31,256 INFO L225 Difference]: With dead ends: 1082 [2023-12-25 05:30:31,256 INFO L226 Difference]: Without dead ends: 547 [2023-12-25 05:30:31,258 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 05:30:31,259 INFO L413 NwaCegarLoop]: 893 mSDtfsCounter, 10 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2674 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 05:30:31,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2674 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:30:31,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2023-12-25 05:30:31,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2023-12-25 05:30:31,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 424 states have (on average 1.7099056603773586) internal successors, (725), 445 states have internal predecessors, (725), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:30:31,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 916 transitions. [2023-12-25 05:30:31,272 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 916 transitions. Word has length 53 [2023-12-25 05:30:31,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:31,272 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 916 transitions. [2023-12-25 05:30:31,272 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:30:31,272 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 916 transitions. [2023-12-25 05:30:31,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 05:30:31,273 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:31,273 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 05:30:31,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-25 05:30:31,496 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 05:30:31,497 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:31,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:31,497 INFO L85 PathProgramCache]: Analyzing trace with hash 452007926, now seen corresponding path program 1 times [2023-12-25 05:30:31,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:31,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127553111] [2023-12-25 05:30:31,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:31,498 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 05:30:31,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:31,499 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 05:30:31,533 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 05:30:31,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:31,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:30:31,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:31,778 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 05:30:31,778 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:31,778 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:31,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [127553111] [2023-12-25 05:30:31,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [127553111] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:31,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:31,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:31,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920348637] [2023-12-25 05:30:31,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:31,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:30:31,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:31,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:30:31,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:30:31,780 INFO L87 Difference]: Start difference. First operand 547 states and 916 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:30:31,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:31,864 INFO L93 Difference]: Finished difference Result 1082 states and 1817 transitions. [2023-12-25 05:30:31,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:30:31,865 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 54 [2023-12-25 05:30:31,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:31,868 INFO L225 Difference]: With dead ends: 1082 [2023-12-25 05:30:31,868 INFO L226 Difference]: Without dead ends: 547 [2023-12-25 05:30:31,870 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 05:30:31,870 INFO L413 NwaCegarLoop]: 893 mSDtfsCounter, 8 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2674 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:31,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2674 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:31,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2023-12-25 05:30:31,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2023-12-25 05:30:31,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 424 states have (on average 1.7075471698113207) internal successors, (724), 445 states have internal predecessors, (724), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:30:31,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 915 transitions. [2023-12-25 05:30:31,884 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 915 transitions. Word has length 54 [2023-12-25 05:30:31,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:31,884 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 915 transitions. [2023-12-25 05:30:31,884 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:30:31,885 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 915 transitions. [2023-12-25 05:30:31,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-25 05:30:31,885 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:31,886 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 05:30:31,912 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-25 05:30:32,115 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 05:30:32,116 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:32,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:32,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1550832781, now seen corresponding path program 1 times [2023-12-25 05:30:32,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:32,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2026173617] [2023-12-25 05:30:32,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:32,117 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 05:30:32,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:32,118 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 05:30:32,119 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 05:30:32,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:32,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:30:32,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:32,368 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 05:30:32,368 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:32,368 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:32,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2026173617] [2023-12-25 05:30:32,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2026173617] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:32,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:32,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:32,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187584797] [2023-12-25 05:30:32,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:32,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:30:32,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:32,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:30:32,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:30:32,369 INFO L87 Difference]: Start difference. First operand 547 states and 915 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:30:32,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:32,437 INFO L93 Difference]: Finished difference Result 1082 states and 1816 transitions. [2023-12-25 05:30:32,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:30:32,438 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 55 [2023-12-25 05:30:32,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:32,440 INFO L225 Difference]: With dead ends: 1082 [2023-12-25 05:30:32,440 INFO L226 Difference]: Without dead ends: 547 [2023-12-25 05:30:32,442 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 05:30:32,442 INFO L413 NwaCegarLoop]: 893 mSDtfsCounter, 6 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2674 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 05:30:32,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2674 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:30:32,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2023-12-25 05:30:32,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2023-12-25 05:30:32,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 424 states have (on average 1.705188679245283) internal successors, (723), 445 states have internal predecessors, (723), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:30:32,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 914 transitions. [2023-12-25 05:30:32,454 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 914 transitions. Word has length 55 [2023-12-25 05:30:32,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:32,454 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 914 transitions. [2023-12-25 05:30:32,454 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:30:32,454 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 914 transitions. [2023-12-25 05:30:32,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-25 05:30:32,455 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:32,455 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 05:30:32,473 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 05:30:32,673 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 05:30:32,673 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:32,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:32,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1722379878, now seen corresponding path program 1 times [2023-12-25 05:30:32,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:32,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1687203929] [2023-12-25 05:30:32,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:32,674 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 05:30:32,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:32,675 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 05:30:32,701 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 05:30:32,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:32,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:30:32,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:32,966 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 05:30:32,967 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:32,967 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:32,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1687203929] [2023-12-25 05:30:32,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1687203929] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:32,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:32,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:30:32,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333592973] [2023-12-25 05:30:32,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:32,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:30:32,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:32,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:30:32,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:30:32,968 INFO L87 Difference]: Start difference. First operand 547 states and 914 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 05:30:33,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:33,126 INFO L93 Difference]: Finished difference Result 1048 states and 1748 transitions. [2023-12-25 05:30:33,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:30:33,127 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 56 [2023-12-25 05:30:33,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:33,130 INFO L225 Difference]: With dead ends: 1048 [2023-12-25 05:30:33,130 INFO L226 Difference]: Without dead ends: 561 [2023-12-25 05:30:33,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 50 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 05:30:33,132 INFO L413 NwaCegarLoop]: 890 mSDtfsCounter, 115 mSDsluCounter, 4360 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 5250 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 05:30:33,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 5250 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:33,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-12-25 05:30:33,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 559. [2023-12-25 05:30:33,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 433 states have (on average 1.702078521939954) internal successors, (737), 456 states have internal predecessors, (737), 99 states have call successors, (99), 25 states have call predecessors, (99), 26 states have return successors, (96), 91 states have call predecessors, (96), 94 states have call successors, (96) [2023-12-25 05:30:33,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 932 transitions. [2023-12-25 05:30:33,147 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 932 transitions. Word has length 56 [2023-12-25 05:30:33,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:33,147 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 932 transitions. [2023-12-25 05:30:33,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 05:30:33,148 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 932 transitions. [2023-12-25 05:30:33,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-25 05:30:33,149 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:33,149 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 05:30:33,166 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 05:30:33,356 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 05:30:33,356 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:33,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:33,357 INFO L85 PathProgramCache]: Analyzing trace with hash 871846939, now seen corresponding path program 1 times [2023-12-25 05:30:33,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:33,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1723970577] [2023-12-25 05:30:33,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:33,357 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 05:30:33,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:33,362 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 05:30:33,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-25 05:30:33,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:33,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:30:33,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:33,613 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 05:30:33,613 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:33,613 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:33,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1723970577] [2023-12-25 05:30:33,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1723970577] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:33,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:33,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:33,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001221862] [2023-12-25 05:30:33,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:33,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:30:33,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:33,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:30:33,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:30:33,614 INFO L87 Difference]: Start difference. First operand 559 states and 932 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:30:33,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:33,683 INFO L93 Difference]: Finished difference Result 1098 states and 1840 transitions. [2023-12-25 05:30:33,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:30:33,684 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 56 [2023-12-25 05:30:33,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:33,686 INFO L225 Difference]: With dead ends: 1098 [2023-12-25 05:30:33,687 INFO L226 Difference]: Without dead ends: 541 [2023-12-25 05:30:33,688 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 05:30:33,689 INFO L413 NwaCegarLoop]: 894 mSDtfsCounter, 3 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2675 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 05:30:33,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2675 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:30:33,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2023-12-25 05:30:33,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2023-12-25 05:30:33,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 418 states have (on average 1.6961722488038278) internal successors, (709), 439 states have internal predecessors, (709), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:30:33,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 900 transitions. [2023-12-25 05:30:33,700 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 900 transitions. Word has length 56 [2023-12-25 05:30:33,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:33,701 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 900 transitions. [2023-12-25 05:30:33,701 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:30:33,701 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 900 transitions. [2023-12-25 05:30:33,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-25 05:30:33,701 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:33,702 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 05:30:33,710 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 05:30:33,910 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 05:30:33,911 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:33,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:33,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1707060774, now seen corresponding path program 1 times [2023-12-25 05:30:33,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:33,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785505100] [2023-12-25 05:30:33,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:33,912 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 05:30:33,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:33,915 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 05:30:33,968 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 05:30:34,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:34,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:30:34,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:34,183 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 05:30:34,184 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:34,184 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:34,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1785505100] [2023-12-25 05:30:34,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1785505100] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:34,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:34,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:34,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587362486] [2023-12-25 05:30:34,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:34,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:30:34,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:34,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:30:34,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:30:34,191 INFO L87 Difference]: Start difference. First operand 541 states and 900 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:30:34,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:34,312 INFO L93 Difference]: Finished difference Result 1036 states and 1726 transitions. [2023-12-25 05:30:34,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:30:34,313 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 57 [2023-12-25 05:30:34,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:34,318 INFO L225 Difference]: With dead ends: 1036 [2023-12-25 05:30:34,319 INFO L226 Difference]: Without dead ends: 541 [2023-12-25 05:30:34,320 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 05:30:34,322 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 88 mSDsluCounter, 1652 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 2490 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 05:30:34,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 2490 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:34,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2023-12-25 05:30:34,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2023-12-25 05:30:34,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 418 states have (on average 1.686602870813397) internal successors, (705), 439 states have internal predecessors, (705), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:30:34,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 896 transitions. [2023-12-25 05:30:34,332 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 896 transitions. Word has length 57 [2023-12-25 05:30:34,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:34,333 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 896 transitions. [2023-12-25 05:30:34,333 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:30:34,333 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 896 transitions. [2023-12-25 05:30:34,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-25 05:30:34,335 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:34,335 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 05:30:34,341 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 05:30:34,541 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 05:30:34,542 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:34,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:34,543 INFO L85 PathProgramCache]: Analyzing trace with hash 187804439, now seen corresponding path program 1 times [2023-12-25 05:30:34,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:34,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1992632304] [2023-12-25 05:30:34,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:34,544 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:34,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:34,545 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 05:30:34,577 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 05:30:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:34,753 INFO L262 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:30:34,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:34,774 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 05:30:34,774 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:34,774 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:34,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1992632304] [2023-12-25 05:30:34,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1992632304] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:34,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:34,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:34,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337457341] [2023-12-25 05:30:34,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:34,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:30:34,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:34,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:30:34,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:30:34,776 INFO L87 Difference]: Start difference. First operand 541 states and 896 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:30:34,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:34,911 INFO L93 Difference]: Finished difference Result 1036 states and 1722 transitions. [2023-12-25 05:30:34,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:30:34,911 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2023-12-25 05:30:34,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:34,914 INFO L225 Difference]: With dead ends: 1036 [2023-12-25 05:30:34,914 INFO L226 Difference]: Without dead ends: 541 [2023-12-25 05:30:34,915 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 05:30:34,916 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 83 mSDsluCounter, 1652 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 2490 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 05:30:34,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 2490 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:34,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2023-12-25 05:30:34,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2023-12-25 05:30:34,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 418 states have (on average 1.6770334928229664) internal successors, (701), 439 states have internal predecessors, (701), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:30:34,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 892 transitions. [2023-12-25 05:30:34,931 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 892 transitions. Word has length 58 [2023-12-25 05:30:34,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:34,931 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 892 transitions. [2023-12-25 05:30:34,931 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:30:34,931 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 892 transitions. [2023-12-25 05:30:34,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-25 05:30:34,932 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:34,932 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 05:30:34,956 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-12-25 05:30:35,141 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 05:30:35,141 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:35,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:35,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1626830699, now seen corresponding path program 1 times [2023-12-25 05:30:35,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:35,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1286240248] [2023-12-25 05:30:35,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:35,143 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 05:30:35,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:35,144 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 05:30:35,164 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 05:30:35,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:35,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:30:35,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:35,400 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 05:30:35,401 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:35,401 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:35,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1286240248] [2023-12-25 05:30:35,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1286240248] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:35,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:35,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:35,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077913438] [2023-12-25 05:30:35,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:35,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:30:35,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:35,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:30:35,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:30:35,402 INFO L87 Difference]: Start difference. First operand 541 states and 892 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:30:35,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:35,507 INFO L93 Difference]: Finished difference Result 1036 states and 1718 transitions. [2023-12-25 05:30:35,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:30:35,508 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 59 [2023-12-25 05:30:35,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:35,510 INFO L225 Difference]: With dead ends: 1036 [2023-12-25 05:30:35,510 INFO L226 Difference]: Without dead ends: 541 [2023-12-25 05:30:35,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 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 05:30:35,512 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 78 mSDsluCounter, 1652 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 2490 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 05:30:35,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 2490 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:35,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2023-12-25 05:30:35,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2023-12-25 05:30:35,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 418 states have (on average 1.667464114832536) internal successors, (697), 439 states have internal predecessors, (697), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:30:35,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 888 transitions. [2023-12-25 05:30:35,522 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 888 transitions. Word has length 59 [2023-12-25 05:30:35,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:35,522 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 888 transitions. [2023-12-25 05:30:35,522 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:30:35,522 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 888 transitions. [2023-12-25 05:30:35,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-25 05:30:35,523 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:35,523 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 05:30:35,541 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 (12)] Ended with exit code 0 [2023-12-25 05:30:35,729 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 05:30:35,729 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:35,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:35,730 INFO L85 PathProgramCache]: Analyzing trace with hash -942384107, now seen corresponding path program 1 times [2023-12-25 05:30:35,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:35,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1241365408] [2023-12-25 05:30:35,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:35,730 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 05:30:35,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:35,731 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 05:30:35,739 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 05:30:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:35,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:30:35,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:36,021 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 05:30:36,021 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:36,021 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:36,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1241365408] [2023-12-25 05:30:36,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1241365408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:36,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:36,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:30:36,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120217860] [2023-12-25 05:30:36,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:36,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:30:36,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:36,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:30:36,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:30:36,023 INFO L87 Difference]: Start difference. First operand 541 states and 888 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 05:30:36,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:36,145 INFO L93 Difference]: Finished difference Result 1036 states and 1714 transitions. [2023-12-25 05:30:36,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:30:36,146 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 59 [2023-12-25 05:30:36,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:36,148 INFO L225 Difference]: With dead ends: 1036 [2023-12-25 05:30:36,148 INFO L226 Difference]: Without dead ends: 520 [2023-12-25 05:30:36,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 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 05:30:36,150 INFO L413 NwaCegarLoop]: 863 mSDtfsCounter, 108 mSDsluCounter, 4233 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 5096 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 05:30:36,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 5096 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:36,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2023-12-25 05:30:36,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2023-12-25 05:30:36,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 397 states have (on average 1.6700251889168767) internal successors, (663), 418 states have internal predecessors, (663), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:30:36,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 854 transitions. [2023-12-25 05:30:36,160 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 854 transitions. Word has length 59 [2023-12-25 05:30:36,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:36,160 INFO L495 AbstractCegarLoop]: Abstraction has 520 states and 854 transitions. [2023-12-25 05:30:36,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 05:30:36,160 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 854 transitions. [2023-12-25 05:30:36,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-25 05:30:36,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:36,161 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] [2023-12-25 05:30:36,181 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 05:30:36,368 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 05:30:36,368 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:36,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:36,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1823107570, now seen corresponding path program 1 times [2023-12-25 05:30:36,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:36,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282699655] [2023-12-25 05:30:36,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:36,369 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 05:30:36,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:36,370 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 05:30:36,385 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 05:30:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:36,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:30:36,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:36,624 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 05:30:36,624 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:36,624 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:36,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282699655] [2023-12-25 05:30:36,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [282699655] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:36,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:36,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:36,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781084346] [2023-12-25 05:30:36,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:36,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:30:36,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:36,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:30:36,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:30:36,625 INFO L87 Difference]: Start difference. First operand 520 states and 854 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:30:36,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:36,725 INFO L93 Difference]: Finished difference Result 1015 states and 1680 transitions. [2023-12-25 05:30:36,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:30:36,725 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2023-12-25 05:30:36,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:36,728 INFO L225 Difference]: With dead ends: 1015 [2023-12-25 05:30:36,728 INFO L226 Difference]: Without dead ends: 520 [2023-12-25 05:30:36,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 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 05:30:36,731 INFO L413 NwaCegarLoop]: 831 mSDtfsCounter, 39 mSDsluCounter, 1645 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2476 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:36,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 2476 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:36,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2023-12-25 05:30:36,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2023-12-25 05:30:36,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 397 states have (on average 1.6675062972292192) internal successors, (662), 418 states have internal predecessors, (662), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:30:36,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 853 transitions. [2023-12-25 05:30:36,742 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 853 transitions. Word has length 60 [2023-12-25 05:30:36,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:36,742 INFO L495 AbstractCegarLoop]: Abstraction has 520 states and 853 transitions. [2023-12-25 05:30:36,742 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:30:36,742 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 853 transitions. [2023-12-25 05:30:36,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-25 05:30:36,743 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:36,743 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] [2023-12-25 05:30:36,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-25 05:30:36,951 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 05:30:36,951 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:36,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:36,952 INFO L85 PathProgramCache]: Analyzing trace with hash 971096912, now seen corresponding path program 1 times [2023-12-25 05:30:36,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:36,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594448738] [2023-12-25 05:30:36,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:36,952 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 05:30:36,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:36,954 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 05:30:36,960 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 05:30:37,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:37,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:30:37,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:37,230 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 05:30:37,230 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:37,230 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:37,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594448738] [2023-12-25 05:30:37,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594448738] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:37,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:37,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:37,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874065519] [2023-12-25 05:30:37,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:37,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:30:37,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:37,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:30:37,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:30:37,234 INFO L87 Difference]: Start difference. First operand 520 states and 853 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:30:37,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:37,356 INFO L93 Difference]: Finished difference Result 1015 states and 1679 transitions. [2023-12-25 05:30:37,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:30:37,357 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 61 [2023-12-25 05:30:37,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:37,360 INFO L225 Difference]: With dead ends: 1015 [2023-12-25 05:30:37,360 INFO L226 Difference]: Without dead ends: 520 [2023-12-25 05:30:37,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 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 05:30:37,363 INFO L413 NwaCegarLoop]: 831 mSDtfsCounter, 37 mSDsluCounter, 1645 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 2476 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:37,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 2476 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:37,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2023-12-25 05:30:37,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2023-12-25 05:30:37,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 397 states have (on average 1.6649874055415617) internal successors, (661), 418 states have internal predecessors, (661), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:30:37,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 852 transitions. [2023-12-25 05:30:37,378 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 852 transitions. Word has length 61 [2023-12-25 05:30:37,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:37,379 INFO L495 AbstractCegarLoop]: Abstraction has 520 states and 852 transitions. [2023-12-25 05:30:37,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:30:37,379 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 852 transitions. [2023-12-25 05:30:37,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 05:30:37,379 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:37,379 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] [2023-12-25 05:30:37,402 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 05:30:37,600 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 05:30:37,600 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:37,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:37,601 INFO L85 PathProgramCache]: Analyzing trace with hash -97344307, now seen corresponding path program 1 times [2023-12-25 05:30:37,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:37,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [617107969] [2023-12-25 05:30:37,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:37,601 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 05:30:37,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:37,603 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 05:30:37,632 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 05:30:37,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:37,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:30:37,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:37,925 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 05:30:37,926 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:37,926 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:37,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [617107969] [2023-12-25 05:30:37,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [617107969] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:37,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:37,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:30:37,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134012579] [2023-12-25 05:30:37,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:37,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:30:37,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:37,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:30:37,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:30:37,927 INFO L87 Difference]: Start difference. First operand 520 states and 852 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 05:30:38,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:38,078 INFO L93 Difference]: Finished difference Result 1009 states and 1667 transitions. [2023-12-25 05:30:38,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:30:38,078 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 62 [2023-12-25 05:30:38,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:38,080 INFO L225 Difference]: With dead ends: 1009 [2023-12-25 05:30:38,080 INFO L226 Difference]: Without dead ends: 520 [2023-12-25 05:30:38,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 55 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 05:30:38,084 INFO L413 NwaCegarLoop]: 824 mSDtfsCounter, 25 mSDsluCounter, 4926 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 5750 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 05:30:38,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 5750 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:38,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2023-12-25 05:30:38,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2023-12-25 05:30:38,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 397 states have (on average 1.6624685138539044) internal successors, (660), 418 states have internal predecessors, (660), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:30:38,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 851 transitions. [2023-12-25 05:30:38,099 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 851 transitions. Word has length 62 [2023-12-25 05:30:38,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:38,100 INFO L495 AbstractCegarLoop]: Abstraction has 520 states and 851 transitions. [2023-12-25 05:30:38,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 05:30:38,100 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 851 transitions. [2023-12-25 05:30:38,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-25 05:30:38,101 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:38,101 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] [2023-12-25 05:30:38,110 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 05:30:38,307 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 05:30:38,307 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:38,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:38,307 INFO L85 PathProgramCache]: Analyzing trace with hash 295410491, now seen corresponding path program 1 times [2023-12-25 05:30:38,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:38,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2108452629] [2023-12-25 05:30:38,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:38,308 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 05:30:38,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:38,309 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 05:30:38,340 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 05:30:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:38,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 671 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:30:38,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:38,852 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 05:30:38,853 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:38,853 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:38,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2108452629] [2023-12-25 05:30:38,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2108452629] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:38,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:38,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:30:38,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187685566] [2023-12-25 05:30:38,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:38,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:30:38,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:38,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:30:38,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:30:38,854 INFO L87 Difference]: Start difference. First operand 520 states and 851 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 05:30:42,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:42,108 INFO L93 Difference]: Finished difference Result 2074 states and 3477 transitions. [2023-12-25 05:30:42,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 05:30:42,109 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 63 [2023-12-25 05:30:42,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:42,120 INFO L225 Difference]: With dead ends: 2074 [2023-12-25 05:30:42,120 INFO L226 Difference]: Without dead ends: 1592 [2023-12-25 05:30:42,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:30:42,122 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 2758 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 3722 mSolverCounterSat, 532 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2940 SdHoareTripleChecker+Valid, 1596 SdHoareTripleChecker+Invalid, 4254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 532 IncrementalHoareTripleChecker+Valid, 3722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:42,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2940 Valid, 1596 Invalid, 4254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [532 Valid, 3722 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-25 05:30:42,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1592 states. [2023-12-25 05:30:42,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1592 to 1393. [2023-12-25 05:30:42,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1083 states have (on average 1.6915974145891044) internal successors, (1832), 1122 states have internal predecessors, (1832), 251 states have call successors, (251), 57 states have call predecessors, (251), 58 states have return successors, (256), 228 states have call predecessors, (256), 246 states have call successors, (256) [2023-12-25 05:30:42,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 2339 transitions. [2023-12-25 05:30:42,182 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 2339 transitions. Word has length 63 [2023-12-25 05:30:42,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:42,182 INFO L495 AbstractCegarLoop]: Abstraction has 1393 states and 2339 transitions. [2023-12-25 05:30:42,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 05:30:42,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 2339 transitions. [2023-12-25 05:30:42,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 05:30:42,185 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:42,185 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 05:30:42,212 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 05:30:42,392 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 05:30:42,392 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:42,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:42,393 INFO L85 PathProgramCache]: Analyzing trace with hash 728829787, now seen corresponding path program 1 times [2023-12-25 05:30:42,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:42,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [777072053] [2023-12-25 05:30:42,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:42,393 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 05:30:42,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:42,394 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 05:30:42,396 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 05:30:42,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:42,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-25 05:30:42,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:42,909 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 05:30:42,909 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:42,909 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:42,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [777072053] [2023-12-25 05:30:42,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [777072053] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:42,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:42,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:30:42,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958258694] [2023-12-25 05:30:42,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:42,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:30:42,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:42,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:30:42,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:30:42,911 INFO L87 Difference]: Start difference. First operand 1393 states and 2339 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (13), 4 states have call predecessors, (13), 5 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-25 05:30:44,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:44,887 INFO L93 Difference]: Finished difference Result 2763 states and 4714 transitions. [2023-12-25 05:30:44,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:30:44,887 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (13), 4 states have call predecessors, (13), 5 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) Word has length 102 [2023-12-25 05:30:44,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:44,894 INFO L225 Difference]: With dead ends: 2763 [2023-12-25 05:30:44,894 INFO L226 Difference]: Without dead ends: 1408 [2023-12-25 05:30:44,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 95 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 05:30:44,900 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 1297 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 2747 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1297 SdHoareTripleChecker+Valid, 1492 SdHoareTripleChecker+Invalid, 3148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 2747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:44,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1297 Valid, 1492 Invalid, 3148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 2747 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-25 05:30:44,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1408 states. [2023-12-25 05:30:44,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1408 to 1405. [2023-12-25 05:30:44,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1405 states, 1092 states have (on average 1.685897435897436) internal successors, (1841), 1131 states have internal predecessors, (1841), 251 states have call successors, (251), 57 states have call predecessors, (251), 61 states have return successors, (304), 231 states have call predecessors, (304), 246 states have call successors, (304) [2023-12-25 05:30:44,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 2396 transitions. [2023-12-25 05:30:44,989 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 2396 transitions. Word has length 102 [2023-12-25 05:30:44,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:44,990 INFO L495 AbstractCegarLoop]: Abstraction has 1405 states and 2396 transitions. [2023-12-25 05:30:44,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (13), 4 states have call predecessors, (13), 5 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-25 05:30:44,990 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 2396 transitions. [2023-12-25 05:30:44,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 05:30:44,994 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:44,994 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 05:30:45,020 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 05:30:45,202 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 05:30:45,203 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:45,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:45,203 INFO L85 PathProgramCache]: Analyzing trace with hash 640505104, now seen corresponding path program 1 times [2023-12-25 05:30:45,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:45,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [29980681] [2023-12-25 05:30:45,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:45,204 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 05:30:45,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:45,205 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 05:30:45,207 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 05:30:45,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:45,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:30:45,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:45,622 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 05:30:45,622 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:45,622 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:45,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [29980681] [2023-12-25 05:30:45,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [29980681] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:45,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:45,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:30:45,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108341737] [2023-12-25 05:30:45,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:45,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:30:45,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:45,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:30:45,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:30:45,626 INFO L87 Difference]: Start difference. First operand 1405 states and 2396 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-25 05:30:49,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:49,508 INFO L93 Difference]: Finished difference Result 4337 states and 7396 transitions. [2023-12-25 05:30:49,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:30:49,510 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) Word has length 102 [2023-12-25 05:30:49,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:49,524 INFO L225 Difference]: With dead ends: 4337 [2023-12-25 05:30:49,524 INFO L226 Difference]: Without dead ends: 2970 [2023-12-25 05:30:49,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 98 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 05:30:49,529 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 1929 mSDsluCounter, 1878 mSDsCounter, 0 mSdLazyCounter, 5491 mSolverCounterSat, 632 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2011 SdHoareTripleChecker+Valid, 2481 SdHoareTripleChecker+Invalid, 6123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 632 IncrementalHoareTripleChecker+Valid, 5491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:49,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2011 Valid, 2481 Invalid, 6123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [632 Valid, 5491 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-25 05:30:49,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2970 states. [2023-12-25 05:30:49,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2970 to 2794. [2023-12-25 05:30:49,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2794 states, 2080 states have (on average 1.64375) internal successors, (3419), 2166 states have internal predecessors, (3419), 589 states have call successors, (589), 99 states have call predecessors, (589), 124 states have return successors, (696), 561 states have call predecessors, (696), 584 states have call successors, (696) [2023-12-25 05:30:49,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 4704 transitions. [2023-12-25 05:30:49,674 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 4704 transitions. Word has length 102 [2023-12-25 05:30:49,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:49,675 INFO L495 AbstractCegarLoop]: Abstraction has 2794 states and 4704 transitions. [2023-12-25 05:30:49,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-25 05:30:49,675 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 4704 transitions. [2023-12-25 05:30:49,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 05:30:49,677 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:49,677 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, 1] [2023-12-25 05:30:49,687 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 05:30:49,886 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 05:30:49,887 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:49,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:49,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1906392345, now seen corresponding path program 1 times [2023-12-25 05:30:49,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:49,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [109711330] [2023-12-25 05:30:49,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:49,888 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 05:30:49,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:49,889 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 05:30:49,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-25 05:30:50,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:50,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:30:50,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:50,313 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 05:30:50,313 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:50,313 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:50,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [109711330] [2023-12-25 05:30:50,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [109711330] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:50,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:50,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:30:50,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798582737] [2023-12-25 05:30:50,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:50,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:30:50,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:50,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:30:50,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:30:50,315 INFO L87 Difference]: Start difference. First operand 2794 states and 4704 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 5 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-25 05:30:54,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:54,120 INFO L93 Difference]: Finished difference Result 8987 states and 15461 transitions. [2023-12-25 05:30:54,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 05:30:54,123 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 5 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) Word has length 103 [2023-12-25 05:30:54,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:54,155 INFO L225 Difference]: With dead ends: 8987 [2023-12-25 05:30:54,155 INFO L226 Difference]: Without dead ends: 6231 [2023-12-25 05:30:54,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 99 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 05:30:54,170 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 2712 mSDsluCounter, 1808 mSDsCounter, 0 mSdLazyCounter, 4503 mSolverCounterSat, 739 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2791 SdHoareTripleChecker+Valid, 2395 SdHoareTripleChecker+Invalid, 5242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 739 IncrementalHoareTripleChecker+Valid, 4503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:54,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2791 Valid, 2395 Invalid, 5242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [739 Valid, 4503 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-25 05:30:54,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6231 states. [2023-12-25 05:30:54,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6231 to 5993. [2023-12-25 05:30:54,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5993 states, 4469 states have (on average 1.6305661221749832) internal successors, (7287), 4670 states have internal predecessors, (7287), 1251 states have call successors, (1251), 236 states have call predecessors, (1251), 272 states have return successors, (1441), 1163 states have call predecessors, (1441), 1246 states have call successors, (1441) [2023-12-25 05:30:54,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5993 states to 5993 states and 9979 transitions. [2023-12-25 05:30:54,602 INFO L78 Accepts]: Start accepts. Automaton has 5993 states and 9979 transitions. Word has length 103 [2023-12-25 05:30:54,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:54,602 INFO L495 AbstractCegarLoop]: Abstraction has 5993 states and 9979 transitions. [2023-12-25 05:30:54,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 5 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-25 05:30:54,603 INFO L276 IsEmpty]: Start isEmpty. Operand 5993 states and 9979 transitions. [2023-12-25 05:30:54,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-25 05:30:54,605 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:54,605 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:30:54,614 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 (20)] Ended with exit code 0 [2023-12-25 05:30:54,814 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 05:30:54,814 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:54,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:54,815 INFO L85 PathProgramCache]: Analyzing trace with hash -377381074, now seen corresponding path program 1 times [2023-12-25 05:30:54,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:54,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1658337064] [2023-12-25 05:30:54,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:54,816 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:54,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:54,817 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 05:30:54,818 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 05:30:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:55,139 INFO L262 TraceCheckSpWp]: Trace formula consists of 861 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-25 05:30:55,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:55,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:30:55,420 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:55,420 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:55,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1658337064] [2023-12-25 05:30:55,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1658337064] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:55,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:55,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:30:55,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312293664] [2023-12-25 05:30:55,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:55,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:30:55,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:55,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:30:55,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:30:55,421 INFO L87 Difference]: Start difference. First operand 5993 states and 9979 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 5 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-25 05:30:58,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:58,803 INFO L93 Difference]: Finished difference Result 14037 states and 23529 transitions. [2023-12-25 05:30:58,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 05:30:58,804 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 5 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 104 [2023-12-25 05:30:58,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:58,845 INFO L225 Difference]: With dead ends: 14037 [2023-12-25 05:30:58,845 INFO L226 Difference]: Without dead ends: 8082 [2023-12-25 05:30:58,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:30:58,868 INFO L413 NwaCegarLoop]: 563 mSDtfsCounter, 3506 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 4016 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3679 SdHoareTripleChecker+Valid, 1666 SdHoareTripleChecker+Invalid, 4728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 4016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:58,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3679 Valid, 1666 Invalid, 4728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 4016 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-25 05:30:58,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8082 states. [2023-12-25 05:30:59,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8082 to 7320. [2023-12-25 05:30:59,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7320 states, 5476 states have (on average 1.6296566837107378) internal successors, (8924), 5717 states have internal predecessors, (8924), 1503 states have call successors, (1503), 301 states have call predecessors, (1503), 340 states have return successors, (1762), 1378 states have call predecessors, (1762), 1498 states have call successors, (1762) [2023-12-25 05:30:59,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7320 states to 7320 states and 12189 transitions. [2023-12-25 05:30:59,442 INFO L78 Accepts]: Start accepts. Automaton has 7320 states and 12189 transitions. Word has length 104 [2023-12-25 05:30:59,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:59,442 INFO L495 AbstractCegarLoop]: Abstraction has 7320 states and 12189 transitions. [2023-12-25 05:30:59,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 5 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-25 05:30:59,442 INFO L276 IsEmpty]: Start isEmpty. Operand 7320 states and 12189 transitions. [2023-12-25 05:30:59,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-25 05:30:59,445 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:59,445 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:30:59,454 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 05:30:59,653 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 05:30:59,654 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:59,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:59,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1106652701, now seen corresponding path program 1 times [2023-12-25 05:30:59,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:59,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1793306991] [2023-12-25 05:30:59,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:59,656 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 05:30:59,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:59,657 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 05:30:59,687 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 05:30:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:59,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 868 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:30:59,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:00,147 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 05:31:00,148 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:00,148 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:00,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1793306991] [2023-12-25 05:31:00,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1793306991] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:00,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:00,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:31:00,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370057460] [2023-12-25 05:31:00,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:00,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:31:00,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:00,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:31:00,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:31:00,150 INFO L87 Difference]: Start difference. First operand 7320 states and 12189 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 5 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-25 05:31:03,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:03,646 INFO L93 Difference]: Finished difference Result 20993 states and 35555 transitions. [2023-12-25 05:31:03,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:31:03,646 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 5 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 109 [2023-12-25 05:31:03,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:03,704 INFO L225 Difference]: With dead ends: 20993 [2023-12-25 05:31:03,705 INFO L226 Difference]: Without dead ends: 13677 [2023-12-25 05:31:03,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:31:03,728 INFO L413 NwaCegarLoop]: 661 mSDtfsCounter, 2044 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 3251 mSolverCounterSat, 472 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2156 SdHoareTripleChecker+Valid, 1576 SdHoareTripleChecker+Invalid, 3723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 472 IncrementalHoareTripleChecker+Valid, 3251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:03,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2156 Valid, 1576 Invalid, 3723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [472 Valid, 3251 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-25 05:31:03,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13677 states. [2023-12-25 05:31:04,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13677 to 13399. [2023-12-25 05:31:04,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13399 states, 9889 states have (on average 1.6151279199110122) internal successors, (15972), 10358 states have internal predecessors, (15972), 2889 states have call successors, (2889), 507 states have call predecessors, (2889), 620 states have return successors, (3559), 2722 states have call predecessors, (3559), 2884 states have call successors, (3559) [2023-12-25 05:31:04,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13399 states to 13399 states and 22420 transitions. [2023-12-25 05:31:04,685 INFO L78 Accepts]: Start accepts. Automaton has 13399 states and 22420 transitions. Word has length 109 [2023-12-25 05:31:04,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:04,685 INFO L495 AbstractCegarLoop]: Abstraction has 13399 states and 22420 transitions. [2023-12-25 05:31:04,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 5 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-25 05:31:04,685 INFO L276 IsEmpty]: Start isEmpty. Operand 13399 states and 22420 transitions. [2023-12-25 05:31:04,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-25 05:31:04,687 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:04,687 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:04,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-25 05:31:04,899 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 05:31:04,900 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:04,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:04,900 INFO L85 PathProgramCache]: Analyzing trace with hash 694821805, now seen corresponding path program 1 times [2023-12-25 05:31:04,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:04,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889455480] [2023-12-25 05:31:04,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:04,901 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 05:31:04,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:04,902 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 05:31:04,903 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 05:31:05,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:05,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:31:05,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:05,380 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 05:31:05,381 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:05,381 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:05,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889455480] [2023-12-25 05:31:05,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1889455480] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:05,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:05,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:31:05,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722816170] [2023-12-25 05:31:05,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:05,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:31:05,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:05,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:31:05,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:31:05,382 INFO L87 Difference]: Start difference. First operand 13399 states and 22420 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 5 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-25 05:31:10,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:10,156 INFO L93 Difference]: Finished difference Result 41426 states and 70997 transitions. [2023-12-25 05:31:10,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:31:10,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 5 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 110 [2023-12-25 05:31:10,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:10,282 INFO L225 Difference]: With dead ends: 41426 [2023-12-25 05:31:10,282 INFO L226 Difference]: Without dead ends: 28068 [2023-12-25 05:31:10,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:31:10,329 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 2593 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 3170 mSolverCounterSat, 640 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2706 SdHoareTripleChecker+Valid, 1479 SdHoareTripleChecker+Invalid, 3810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 640 IncrementalHoareTripleChecker+Valid, 3170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:10,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2706 Valid, 1479 Invalid, 3810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [640 Valid, 3170 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-25 05:31:10,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28068 states. [2023-12-25 05:31:12,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28068 to 27673. [2023-12-25 05:31:12,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27673 states, 20132 states have (on average 1.6030697397178622) internal successors, (32273), 21155 states have internal predecessors, (32273), 6277 states have call successors, (6277), 926 states have call predecessors, (6277), 1263 states have return successors, (8410), 6067 states have call predecessors, (8410), 6272 states have call successors, (8410) [2023-12-25 05:31:12,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27673 states to 27673 states and 46960 transitions. [2023-12-25 05:31:12,703 INFO L78 Accepts]: Start accepts. Automaton has 27673 states and 46960 transitions. Word has length 110 [2023-12-25 05:31:12,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:12,703 INFO L495 AbstractCegarLoop]: Abstraction has 27673 states and 46960 transitions. [2023-12-25 05:31:12,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 5 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-25 05:31:12,703 INFO L276 IsEmpty]: Start isEmpty. Operand 27673 states and 46960 transitions. [2023-12-25 05:31:12,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 05:31:12,706 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:12,706 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:12,717 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2023-12-25 05:31:12,917 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 05:31:12,917 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:12,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:12,917 INFO L85 PathProgramCache]: Analyzing trace with hash -122545666, now seen corresponding path program 1 times [2023-12-25 05:31:12,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:12,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1083550602] [2023-12-25 05:31:12,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:12,918 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 05:31:12,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:12,933 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 05:31:12,965 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 05:31:13,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:13,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 870 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:31:13,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:13,412 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 05:31:13,412 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:13,412 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:13,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1083550602] [2023-12-25 05:31:13,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1083550602] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:13,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:13,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:31:13,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905953966] [2023-12-25 05:31:13,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:13,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:31:13,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:13,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:31:13,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:31:13,413 INFO L87 Difference]: Start difference. First operand 27673 states and 46960 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 5 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-25 05:31:21,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:21,400 INFO L93 Difference]: Finished difference Result 90634 states and 158679 transitions. [2023-12-25 05:31:21,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:31:21,401 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 5 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 111 [2023-12-25 05:31:21,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:21,981 INFO L225 Difference]: With dead ends: 90634 [2023-12-25 05:31:21,982 INFO L226 Difference]: Without dead ends: 63004 [2023-12-25 05:31:22,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:31:22,120 INFO L413 NwaCegarLoop]: 663 mSDtfsCounter, 3126 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 2536 mSolverCounterSat, 732 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3240 SdHoareTripleChecker+Valid, 1305 SdHoareTripleChecker+Invalid, 3268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 732 IncrementalHoareTripleChecker+Valid, 2536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:22,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3240 Valid, 1305 Invalid, 3268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [732 Valid, 2536 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-25 05:31:22,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63004 states. [2023-12-25 05:31:27,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63004 to 62339. [2023-12-25 05:31:27,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62339 states, 44715 states have (on average 1.5951470423795147) internal successors, (71327), 47128 states have internal predecessors, (71327), 14843 states have call successors, (14843), 1764 states have call predecessors, (14843), 2780 states have return successors, (22389), 14671 states have call predecessors, (22389), 14838 states have call successors, (22389) [2023-12-25 05:31:28,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62339 states to 62339 states and 108559 transitions. [2023-12-25 05:31:28,567 INFO L78 Accepts]: Start accepts. Automaton has 62339 states and 108559 transitions. Word has length 111 [2023-12-25 05:31:28,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:28,568 INFO L495 AbstractCegarLoop]: Abstraction has 62339 states and 108559 transitions. [2023-12-25 05:31:28,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 5 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-25 05:31:28,568 INFO L276 IsEmpty]: Start isEmpty. Operand 62339 states and 108559 transitions. [2023-12-25 05:31:28,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-25 05:31:28,570 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:28,571 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:28,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-25 05:31:28,771 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 05:31:28,771 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:28,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:28,772 INFO L85 PathProgramCache]: Analyzing trace with hash -519635800, now seen corresponding path program 1 times [2023-12-25 05:31:28,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:28,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [932913621] [2023-12-25 05:31:28,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:28,772 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:31:28,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:28,781 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 05:31:28,808 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 05:31:29,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:29,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 871 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:31:29,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:29,243 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 05:31:29,243 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:29,243 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:29,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [932913621] [2023-12-25 05:31:29,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [932913621] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:29,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:29,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:31:29,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12113385] [2023-12-25 05:31:29,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:29,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:31:29,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:29,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:31:29,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:31:29,245 INFO L87 Difference]: Start difference. First operand 62339 states and 108559 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 5 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-25 05:31:46,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:46,813 INFO L93 Difference]: Finished difference Result 213826 states and 387886 transitions. [2023-12-25 05:31:46,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:31:46,814 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 5 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 112 [2023-12-25 05:31:46,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:48,231 INFO L225 Difference]: With dead ends: 213826 [2023-12-25 05:31:48,231 INFO L226 Difference]: Without dead ends: 151534 [2023-12-25 05:31:48,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:31:48,717 INFO L413 NwaCegarLoop]: 669 mSDtfsCounter, 2065 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 3260 mSolverCounterSat, 479 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2180 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 3739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 479 IncrementalHoareTripleChecker+Valid, 3260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:48,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2180 Valid, 1629 Invalid, 3739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [479 Valid, 3260 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-25 05:31:48,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151534 states. [2023-12-25 05:32:03,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151534 to 150293. [2023-12-25 05:32:04,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150293 states, 106502 states have (on average 1.5906274060581023) internal successors, (169405), 112511 states have internal predecessors, (169405), 37261 states have call successors, (37261), 3440 states have call predecessors, (37261), 6529 states have return successors, (65430), 37547 states have call predecessors, (65430), 37256 states have call successors, (65430) [2023-12-25 05:32:05,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150293 states to 150293 states and 272096 transitions. [2023-12-25 05:32:05,990 INFO L78 Accepts]: Start accepts. Automaton has 150293 states and 272096 transitions. Word has length 112 [2023-12-25 05:32:05,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:05,991 INFO L495 AbstractCegarLoop]: Abstraction has 150293 states and 272096 transitions. [2023-12-25 05:32:05,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 5 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-25 05:32:05,991 INFO L276 IsEmpty]: Start isEmpty. Operand 150293 states and 272096 transitions. [2023-12-25 05:32:06,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-25 05:32:06,005 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:06,005 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:32:06,015 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 05:32:06,214 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 05:32:06,215 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:06,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:06,215 INFO L85 PathProgramCache]: Analyzing trace with hash -773030375, now seen corresponding path program 1 times [2023-12-25 05:32:06,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:06,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [383576104] [2023-12-25 05:32:06,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:06,216 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 05:32:06,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:06,217 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 05:32:06,218 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 05:32:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:06,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:32:06,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:06,890 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 05:32:06,891 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:06,891 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:06,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [383576104] [2023-12-25 05:32:06,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [383576104] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:06,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:06,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:32:06,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556174730] [2023-12-25 05:32:06,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:06,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:32:06,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:06,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:32:06,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:32:06,892 INFO L87 Difference]: Start difference. First operand 150293 states and 272096 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 5 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-25 05:32:54,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:54,744 INFO L93 Difference]: Finished difference Result 536350 states and 1024205 transitions. [2023-12-25 05:32:54,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:32:54,745 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 5 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 113 [2023-12-25 05:32:54,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:59,446 INFO L225 Difference]: With dead ends: 536350 [2023-12-25 05:32:59,446 INFO L226 Difference]: Without dead ends: 386112 [2023-12-25 05:33:00,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:33:00,906 INFO L413 NwaCegarLoop]: 675 mSDtfsCounter, 2620 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 3194 mSolverCounterSat, 646 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2736 SdHoareTripleChecker+Valid, 1527 SdHoareTripleChecker+Invalid, 3840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 646 IncrementalHoareTripleChecker+Valid, 3194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:00,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2736 Valid, 1527 Invalid, 3840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [646 Valid, 3194 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-25 05:33:01,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386112 states.