/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_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/elevator_spec2_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 22:37:37,215 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 22:37:37,282 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 22:37:37,286 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 22:37:37,287 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 22:37:37,309 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 22:37:37,309 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 22:37:37,310 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 22:37:37,310 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 22:37:37,313 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 22:37:37,313 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 22:37:37,314 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 22:37:37,314 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 22:37:37,315 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 22:37:37,315 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 22:37:37,315 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 22:37:37,316 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 22:37:37,316 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 22:37:37,316 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 22:37:37,317 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 22:37:37,317 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 22:37:37,317 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 22:37:37,317 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 22:37:37,317 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 22:37:37,318 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 22:37:37,318 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 22:37:37,318 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 22:37:37,318 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 22:37:37,318 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 22:37:37,319 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 22:37:37,319 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 22:37:37,319 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 22:37:37,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:37:37,320 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 22:37:37,320 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 22:37:37,320 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 22:37:37,320 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 22:37:37,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 22:37:37,320 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 22:37:37,320 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 22:37:37,321 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 22:37:37,321 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 22:37:37,321 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 22:37:37,321 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 22:37:37,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 22:37:37,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 22:37:37,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 22:37:37,530 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 22:37:37,530 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 22:37:37,534 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product25.cil.c [2023-12-15 22:37:38,106 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 22:37:39,239 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 22:37:39,240 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product25.cil.c [2023-12-15 22:37:39,261 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8692c7ebc/421879cf62104e0687d1bf46f63ef7ff/FLAG1cc062817 [2023-12-15 22:37:39,278 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8692c7ebc/421879cf62104e0687d1bf46f63ef7ff [2023-12-15 22:37:39,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 22:37:39,280 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 22:37:39,281 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 22:37:39,281 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 22:37:39,284 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 22:37:39,285 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:37:39" (1/1) ... [2023-12-15 22:37:39,285 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27c1fdfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:37:39, skipping insertion in model container [2023-12-15 22:37:39,285 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:37:39" (1/1) ... [2023-12-15 22:37:39,345 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 22:37:39,619 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_product25.cil.c[66231,66244] [2023-12-15 22:37:39,636 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:37:39,644 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 22:37:39,650 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2023-12-15 22:37:39,651 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [86] [2023-12-15 22:37:39,652 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [100] [2023-12-15 22:37:39,652 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [286] [2023-12-15 22:37:39,652 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1765] [2023-12-15 22:37:39,652 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1884] [2023-12-15 22:37:39,652 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2546] [2023-12-15 22:37:39,652 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2638] [2023-12-15 22:37:39,652 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3004] [2023-12-15 22:37:39,653 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3013] [2023-12-15 22:37:39,722 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_product25.cil.c[66231,66244] [2023-12-15 22:37:39,727 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:37:39,744 INFO L206 MainTranslator]: Completed translation [2023-12-15 22:37:39,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:37:39 WrapperNode [2023-12-15 22:37:39,744 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 22:37:39,745 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 22:37:39,745 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 22:37:39,745 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 22:37:39,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:37:39" (1/1) ... [2023-12-15 22:37:39,768 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:37:39" (1/1) ... [2023-12-15 22:37:39,798 INFO L138 Inliner]: procedures = 91, calls = 334, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 845 [2023-12-15 22:37:39,799 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 22:37:39,799 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 22:37:39,799 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 22:37:39,799 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 22:37:39,814 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:37:39" (1/1) ... [2023-12-15 22:37:39,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:37:39" (1/1) ... [2023-12-15 22:37:39,817 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:37:39" (1/1) ... [2023-12-15 22:37:39,894 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-15 22:37:39,895 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:37:39" (1/1) ... [2023-12-15 22:37:39,895 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:37:39" (1/1) ... [2023-12-15 22:37:39,906 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:37:39" (1/1) ... [2023-12-15 22:37:39,929 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:37:39" (1/1) ... [2023-12-15 22:37:39,932 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:37:39" (1/1) ... [2023-12-15 22:37:39,935 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:37:39" (1/1) ... [2023-12-15 22:37:39,958 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 22:37:39,958 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 22:37:39,959 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 22:37:39,959 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 22:37:39,960 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:37:39" (1/1) ... [2023-12-15 22:37:39,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:37:39,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:37:39,998 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) [2023-12-15 22:37:40,017 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 [2023-12-15 22:37:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 22:37:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-15 22:37:40,023 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-15 22:37:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-15 22:37:40,024 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-15 22:37:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-15 22:37:40,024 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-15 22:37:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-15 22:37:40,024 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-15 22:37:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-15 22:37:40,024 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-15 22:37:40,025 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-15 22:37:40,025 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-15 22:37:40,025 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-15 22:37:40,025 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-15 22:37:40,025 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-15 22:37:40,025 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-15 22:37:40,026 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-15 22:37:40,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-15 22:37:40,028 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-15 22:37:40,028 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-15 22:37:40,028 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-15 22:37:40,028 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-15 22:37:40,029 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-15 22:37:40,029 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-15 22:37:40,029 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-15 22:37:40,029 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-15 22:37:40,029 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-15 22:37:40,029 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-15 22:37:40,029 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-15 22:37:40,029 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-15 22:37:40,029 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-15 22:37:40,029 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-15 22:37:40,029 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-15 22:37:40,029 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-15 22:37:40,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 22:37:40,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 22:37:40,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-15 22:37:40,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-15 22:37:40,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-15 22:37:40,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-15 22:37:40,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-15 22:37:40,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-15 22:37:40,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-15 22:37:40,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-15 22:37:40,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-15 22:37:40,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-15 22:37:40,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-15 22:37:40,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-15 22:37:40,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-15 22:37:40,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-15 22:37:40,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-15 22:37:40,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-12-15 22:37:40,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-12-15 22:37:40,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-12-15 22:37:40,031 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-15 22:37:40,031 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-15 22:37:40,031 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-15 22:37:40,031 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-15 22:37:40,031 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-15 22:37:40,032 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-15 22:37:40,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 22:37:40,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 22:37:40,032 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-15 22:37:40,032 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-15 22:37:40,181 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 22:37:40,183 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 22:37:40,800 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 22:37:40,862 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 22:37:40,862 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 22:37:40,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:37:40 BoogieIcfgContainer [2023-12-15 22:37:40,862 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 22:37:40,864 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 22:37:40,864 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 22:37:40,866 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 22:37:40,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:37:39" (1/3) ... [2023-12-15 22:37:40,868 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b0f645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:37:40, skipping insertion in model container [2023-12-15 22:37:40,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:37:39" (2/3) ... [2023-12-15 22:37:40,869 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b0f645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:37:40, skipping insertion in model container [2023-12-15 22:37:40,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:37:40" (3/3) ... [2023-12-15 22:37:40,870 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product25.cil.c [2023-12-15 22:37:40,882 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 22:37:40,882 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 22:37:40,943 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 22:37:40,953 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;@668034b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 22:37:40,953 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 22:37:40,961 INFO L276 IsEmpty]: Start isEmpty. Operand has 520 states, 409 states have (on average 1.7481662591687042) internal successors, (715), 430 states have internal predecessors, (715), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (88), 82 states have call predecessors, (88), 88 states have call successors, (88) [2023-12-15 22:37:40,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-15 22:37:40,979 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:37:40,980 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] [2023-12-15 22:37:40,980 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:37:40,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:37:40,984 INFO L85 PathProgramCache]: Analyzing trace with hash 964666655, now seen corresponding path program 1 times [2023-12-15 22:37:40,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:37:40,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057498135] [2023-12-15 22:37:40,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:37:40,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:37:41,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:41,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:37:41,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:41,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:37:41,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:41,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:37:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:41,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:37:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:41,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:37:41,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:41,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:37:41,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:41,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 22:37:41,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:41,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 22:37:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:41,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:37:41,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:37:41,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057498135] [2023-12-15 22:37:41,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057498135] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:37:41,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:37:41,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:37:41,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154792582] [2023-12-15 22:37:41,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:37:41,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:37:41,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:37:41,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:37:41,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:37:41,987 INFO L87 Difference]: Start difference. First operand has 520 states, 409 states have (on average 1.7481662591687042) internal successors, (715), 430 states have internal predecessors, (715), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (88), 82 states have call predecessors, (88), 88 states have call successors, (88) Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:37:46,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:37:46,388 INFO L93 Difference]: Finished difference Result 1272 states and 2208 transitions. [2023-12-15 22:37:46,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 22:37:46,389 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2023-12-15 22:37:46,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:37:46,419 INFO L225 Difference]: With dead ends: 1272 [2023-12-15 22:37:46,419 INFO L226 Difference]: Without dead ends: 761 [2023-12-15 22:37:46,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:37:46,426 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 1382 mSDsluCounter, 1193 mSDsCounter, 0 mSdLazyCounter, 2792 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1454 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 3123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 2792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-15 22:37:46,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1454 Valid, 1638 Invalid, 3123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 2792 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-15 22:37:46,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2023-12-15 22:37:46,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 516. [2023-12-15 22:37:46,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 407 states have (on average 1.7371007371007372) internal successors, (707), 426 states have internal predecessors, (707), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-15 22:37:46,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 878 transitions. [2023-12-15 22:37:46,530 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 878 transitions. Word has length 65 [2023-12-15 22:37:46,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:37:46,531 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 878 transitions. [2023-12-15 22:37:46,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:37:46,531 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 878 transitions. [2023-12-15 22:37:46,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-15 22:37:46,534 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:37:46,534 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] [2023-12-15 22:37:46,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 22:37:46,534 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:37:46,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:37:46,535 INFO L85 PathProgramCache]: Analyzing trace with hash 272204788, now seen corresponding path program 1 times [2023-12-15 22:37:46,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:37:46,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008201823] [2023-12-15 22:37:46,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:37:46,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:37:46,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:46,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:37:46,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:46,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:37:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:46,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:37:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:47,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:37:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:47,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:37:47,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:47,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:37:47,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:47,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 22:37:47,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:47,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 22:37:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:47,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:37:47,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:37:47,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008201823] [2023-12-15 22:37:47,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008201823] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:37:47,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:37:47,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:37:47,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91312925] [2023-12-15 22:37:47,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:37:47,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:37:47,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:37:47,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:37:47,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:37:47,140 INFO L87 Difference]: Start difference. First operand 516 states and 878 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:37:51,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:37:51,090 INFO L93 Difference]: Finished difference Result 1265 states and 2177 transitions. [2023-12-15 22:37:51,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 22:37:51,091 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 67 [2023-12-15 22:37:51,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:37:51,097 INFO L225 Difference]: With dead ends: 1265 [2023-12-15 22:37:51,098 INFO L226 Difference]: Without dead ends: 761 [2023-12-15 22:37:51,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:37:51,101 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 1384 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 2754 mSolverCounterSat, 343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 3097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 343 IncrementalHoareTripleChecker+Valid, 2754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:37:51,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1456 Valid, 1606 Invalid, 3097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [343 Valid, 2754 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-15 22:37:51,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2023-12-15 22:37:51,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 516. [2023-12-15 22:37:51,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 407 states have (on average 1.7346437346437347) internal successors, (706), 426 states have internal predecessors, (706), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-15 22:37:51,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 877 transitions. [2023-12-15 22:37:51,201 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 877 transitions. Word has length 67 [2023-12-15 22:37:51,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:37:51,202 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 877 transitions. [2023-12-15 22:37:51,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:37:51,202 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 877 transitions. [2023-12-15 22:37:51,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-15 22:37:51,204 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:37:51,204 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] [2023-12-15 22:37:51,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 22:37:51,204 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:37:51,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:37:51,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1252745832, now seen corresponding path program 1 times [2023-12-15 22:37:51,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:37:51,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421464537] [2023-12-15 22:37:51,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:37:51,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:37:51,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:51,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:37:51,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:51,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:37:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:51,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:37:51,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:51,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-15 22:37:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:51,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:37:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:51,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:37:51,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:51,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 22:37:51,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:51,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 22:37:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:51,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:37:51,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:37:51,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421464537] [2023-12-15 22:37:51,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421464537] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:37:51,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:37:51,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:37:51,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688600939] [2023-12-15 22:37:51,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:37:51,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:37:51,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:37:51,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:37:51,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:37:51,787 INFO L87 Difference]: Start difference. First operand 516 states and 877 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:37:55,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:37:55,542 INFO L93 Difference]: Finished difference Result 1265 states and 2176 transitions. [2023-12-15 22:37:55,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 22:37:55,543 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2023-12-15 22:37:55,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:37:55,547 INFO L225 Difference]: With dead ends: 1265 [2023-12-15 22:37:55,547 INFO L226 Difference]: Without dead ends: 761 [2023-12-15 22:37:55,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:37:55,550 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 1374 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 2781 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1446 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 3111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 2781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:37:55,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1446 Valid, 1628 Invalid, 3111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 2781 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-15 22:37:55,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2023-12-15 22:37:55,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 516. [2023-12-15 22:37:55,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 407 states have (on average 1.7321867321867321) internal successors, (705), 426 states have internal predecessors, (705), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-15 22:37:55,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 876 transitions. [2023-12-15 22:37:55,614 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 876 transitions. Word has length 68 [2023-12-15 22:37:55,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:37:55,615 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 876 transitions. [2023-12-15 22:37:55,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:37:55,615 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 876 transitions. [2023-12-15 22:37:55,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-15 22:37:55,617 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:37:55,618 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] [2023-12-15 22:37:55,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 22:37:55,618 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:37:55,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:37:55,621 INFO L85 PathProgramCache]: Analyzing trace with hash -877926928, now seen corresponding path program 1 times [2023-12-15 22:37:55,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:37:55,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113837840] [2023-12-15 22:37:55,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:37:55,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:37:55,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:55,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:37:55,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:55,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:37:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:55,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 22:37:55,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:56,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-15 22:37:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:56,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:37:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:56,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:37:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:56,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 22:37:56,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:56,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 22:37:56,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:37:56,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:37:56,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:37:56,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113837840] [2023-12-15 22:37:56,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113837840] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:37:56,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:37:56,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:37:56,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395366230] [2023-12-15 22:37:56,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:37:56,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:37:56,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:37:56,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:37:56,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:37:56,059 INFO L87 Difference]: Start difference. First operand 516 states and 876 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:38:00,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:38:00,266 INFO L93 Difference]: Finished difference Result 1265 states and 2175 transitions. [2023-12-15 22:38:00,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 22:38:00,267 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2023-12-15 22:38:00,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:38:00,291 INFO L225 Difference]: With dead ends: 1265 [2023-12-15 22:38:00,291 INFO L226 Difference]: Without dead ends: 761 [2023-12-15 22:38:00,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:38:00,298 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 955 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 2966 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 3164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 2966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-15 22:38:00,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1027 Valid, 1685 Invalid, 3164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 2966 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-15 22:38:00,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2023-12-15 22:38:00,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 516. [2023-12-15 22:38:00,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 407 states have (on average 1.7297297297297298) internal successors, (704), 426 states have internal predecessors, (704), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-15 22:38:00,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 875 transitions. [2023-12-15 22:38:00,434 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 875 transitions. Word has length 69 [2023-12-15 22:38:00,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:38:00,434 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 875 transitions. [2023-12-15 22:38:00,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:38:00,435 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 875 transitions. [2023-12-15 22:38:00,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-15 22:38:00,438 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:38:00,439 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] [2023-12-15 22:38:00,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 22:38:00,439 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:38:00,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:38:00,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1739794924, now seen corresponding path program 1 times [2023-12-15 22:38:00,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:38:00,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032659340] [2023-12-15 22:38:00,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:38:00,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:38:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:00,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:38:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:00,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:00,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 22:38:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:00,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-15 22:38:00,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:00,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:00,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:01,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 22:38:01,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:01,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 22:38:01,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:01,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:38:01,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:38:01,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032659340] [2023-12-15 22:38:01,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032659340] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:38:01,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:38:01,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:38:01,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984288042] [2023-12-15 22:38:01,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:38:01,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:38:01,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:38:01,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:38:01,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:38:01,012 INFO L87 Difference]: Start difference. First operand 516 states and 875 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:38:05,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:38:05,262 INFO L93 Difference]: Finished difference Result 1265 states and 2174 transitions. [2023-12-15 22:38:05,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 22:38:05,263 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2023-12-15 22:38:05,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:38:05,289 INFO L225 Difference]: With dead ends: 1265 [2023-12-15 22:38:05,290 INFO L226 Difference]: Without dead ends: 761 [2023-12-15 22:38:05,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:38:05,292 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 1362 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 2861 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1434 SdHoareTripleChecker+Valid, 1618 SdHoareTripleChecker+Invalid, 3201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 2861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-15 22:38:05,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1434 Valid, 1618 Invalid, 3201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 2861 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-15 22:38:05,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2023-12-15 22:38:05,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 516. [2023-12-15 22:38:05,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 407 states have (on average 1.7272727272727273) internal successors, (703), 426 states have internal predecessors, (703), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-15 22:38:05,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 874 transitions. [2023-12-15 22:38:05,439 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 874 transitions. Word has length 70 [2023-12-15 22:38:05,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:38:05,439 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 874 transitions. [2023-12-15 22:38:05,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:38:05,439 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 874 transitions. [2023-12-15 22:38:05,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-15 22:38:05,441 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:38:05,441 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] [2023-12-15 22:38:05,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 22:38:05,441 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:38:05,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:38:05,442 INFO L85 PathProgramCache]: Analyzing trace with hash 2111628107, now seen corresponding path program 1 times [2023-12-15 22:38:05,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:38:05,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142556346] [2023-12-15 22:38:05,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:38:05,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:38:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:05,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:38:05,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:05,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:05,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:05,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:05,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 22:38:05,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:05,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:05,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:05,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:05,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 22:38:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:05,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 22:38:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:05,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:38:05,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:38:05,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142556346] [2023-12-15 22:38:05,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142556346] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:38:05,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:38:05,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 22:38:05,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023815353] [2023-12-15 22:38:05,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:38:05,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 22:38:05,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:38:05,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 22:38:05,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:38:05,995 INFO L87 Difference]: Start difference. First operand 516 states and 874 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:38:11,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:38:11,168 INFO L93 Difference]: Finished difference Result 1259 states and 2167 transitions. [2023-12-15 22:38:11,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 22:38:11,168 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2023-12-15 22:38:11,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:38:11,171 INFO L225 Difference]: With dead ends: 1259 [2023-12-15 22:38:11,171 INFO L226 Difference]: Without dead ends: 795 [2023-12-15 22:38:11,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-12-15 22:38:11,173 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 1939 mSDsluCounter, 2581 mSDsCounter, 0 mSdLazyCounter, 5013 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2009 SdHoareTripleChecker+Valid, 3054 SdHoareTripleChecker+Invalid, 5525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 5013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:38:11,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2009 Valid, 3054 Invalid, 5525 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [512 Valid, 5013 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-15 22:38:11,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2023-12-15 22:38:11,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 520. [2023-12-15 22:38:11,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 410 states have (on average 1.7097560975609756) internal successors, (701), 429 states have internal predecessors, (701), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (85), 82 states have call predecessors, (85), 83 states have call successors, (85) [2023-12-15 22:38:11,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 874 transitions. [2023-12-15 22:38:11,236 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 874 transitions. Word has length 71 [2023-12-15 22:38:11,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:38:11,236 INFO L495 AbstractCegarLoop]: Abstraction has 520 states and 874 transitions. [2023-12-15 22:38:11,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:38:11,236 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 874 transitions. [2023-12-15 22:38:11,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-15 22:38:11,238 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:38:11,238 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] [2023-12-15 22:38:11,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 22:38:11,238 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:38:11,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:38:11,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1614690238, now seen corresponding path program 1 times [2023-12-15 22:38:11,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:38:11,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138941141] [2023-12-15 22:38:11,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:38:11,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:38:11,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:11,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:38:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:11,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:11,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:11,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:38:11,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:11,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:11,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:11,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:11,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:11,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 22:38:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:11,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-15 22:38:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:11,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:38:11,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:38:11,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138941141] [2023-12-15 22:38:11,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138941141] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:38:11,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:38:11,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-15 22:38:11,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683555852] [2023-12-15 22:38:11,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:38:11,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-15 22:38:11,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:38:11,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-15 22:38:11,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-15 22:38:11,760 INFO L87 Difference]: Start difference. First operand 520 states and 874 transitions. Second operand has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 8 states have internal predecessors, (59), 3 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-15 22:38:21,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:38:21,577 INFO L93 Difference]: Finished difference Result 2384 states and 4244 transitions. [2023-12-15 22:38:21,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-15 22:38:21,578 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 8 states have internal predecessors, (59), 3 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 76 [2023-12-15 22:38:21,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:38:21,588 INFO L225 Difference]: With dead ends: 2384 [2023-12-15 22:38:21,589 INFO L226 Difference]: Without dead ends: 1916 [2023-12-15 22:38:21,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=260, Invalid=732, Unknown=0, NotChecked=0, Total=992 [2023-12-15 22:38:21,593 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 4393 mSDsluCounter, 3119 mSDsCounter, 0 mSdLazyCounter, 5942 mSolverCounterSat, 1329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4471 SdHoareTripleChecker+Valid, 3668 SdHoareTripleChecker+Invalid, 7271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1329 IncrementalHoareTripleChecker+Valid, 5942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-12-15 22:38:21,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4471 Valid, 3668 Invalid, 7271 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1329 Valid, 5942 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-12-15 22:38:21,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2023-12-15 22:38:21,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1375. [2023-12-15 22:38:21,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1375 states, 1074 states have (on average 1.6741154562383613) internal successors, (1798), 1121 states have internal predecessors, (1798), 241 states have call successors, (241), 56 states have call predecessors, (241), 59 states have return successors, (275), 233 states have call predecessors, (275), 236 states have call successors, (275) [2023-12-15 22:38:21,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1375 states to 1375 states and 2314 transitions. [2023-12-15 22:38:21,835 INFO L78 Accepts]: Start accepts. Automaton has 1375 states and 2314 transitions. Word has length 76 [2023-12-15 22:38:21,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:38:21,836 INFO L495 AbstractCegarLoop]: Abstraction has 1375 states and 2314 transitions. [2023-12-15 22:38:21,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 8 states have internal predecessors, (59), 3 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-15 22:38:21,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1375 states and 2314 transitions. [2023-12-15 22:38:21,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-15 22:38:21,841 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:38:21,842 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] [2023-12-15 22:38:21,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 22:38:21,842 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:38:21,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:38:21,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1029481199, now seen corresponding path program 1 times [2023-12-15 22:38:21,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:38:21,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580719799] [2023-12-15 22:38:21,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:38:21,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:38:21,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:22,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:38:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:22,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:22,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:22,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:22,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-15 22:38:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:22,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:22,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:22,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:22,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 22:38:22,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:22,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:38:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:22,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-15 22:38:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:22,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:38:22,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:38:22,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580719799] [2023-12-15 22:38:22,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580719799] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:38:22,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:38:22,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-15 22:38:22,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561210540] [2023-12-15 22:38:22,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:38:22,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-15 22:38:22,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:38:22,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-15 22:38:22,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-15 22:38:22,536 INFO L87 Difference]: Start difference. First operand 1375 states and 2314 transitions. Second operand has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 10 states have internal predecessors, (65), 4 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-12-15 22:38:32,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:38:32,163 INFO L93 Difference]: Finished difference Result 3486 states and 6027 transitions. [2023-12-15 22:38:32,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-15 22:38:32,163 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 10 states have internal predecessors, (65), 4 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 84 [2023-12-15 22:38:32,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:38:32,188 INFO L225 Difference]: With dead ends: 3486 [2023-12-15 22:38:32,188 INFO L226 Difference]: Without dead ends: 1989 [2023-12-15 22:38:32,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=208, Invalid=784, Unknown=0, NotChecked=0, Total=992 [2023-12-15 22:38:32,207 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 4716 mSDsluCounter, 3661 mSDsCounter, 0 mSdLazyCounter, 7079 mSolverCounterSat, 1226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4779 SdHoareTripleChecker+Valid, 4108 SdHoareTripleChecker+Invalid, 8305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1226 IncrementalHoareTripleChecker+Valid, 7079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-15 22:38:32,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4779 Valid, 4108 Invalid, 8305 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1226 Valid, 7079 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-12-15 22:38:32,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1989 states. [2023-12-15 22:38:32,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1989 to 1449. [2023-12-15 22:38:32,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 1131 states have (on average 1.6401414677276747) internal successors, (1855), 1180 states have internal predecessors, (1855), 253 states have call successors, (253), 61 states have call predecessors, (253), 64 states have return successors, (296), 243 states have call predecessors, (296), 248 states have call successors, (296) [2023-12-15 22:38:32,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 2404 transitions. [2023-12-15 22:38:32,465 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 2404 transitions. Word has length 84 [2023-12-15 22:38:32,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:38:32,465 INFO L495 AbstractCegarLoop]: Abstraction has 1449 states and 2404 transitions. [2023-12-15 22:38:32,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 10 states have internal predecessors, (65), 4 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-12-15 22:38:32,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 2404 transitions. [2023-12-15 22:38:32,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-15 22:38:32,466 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:38:32,467 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:38:32,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 22:38:32,467 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:38:32,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:38:32,468 INFO L85 PathProgramCache]: Analyzing trace with hash 780453457, now seen corresponding path program 1 times [2023-12-15 22:38:32,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:38:32,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201633449] [2023-12-15 22:38:32,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:38:32,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:38:32,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:32,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:38:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:32,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:32,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:32,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:38:32,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:33,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:33,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:33,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:33,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 22:38:33,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:33,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 22:38:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:33,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 22:38:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:33,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-15 22:38:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:33,027 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-15 22:38:33,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:38:33,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201633449] [2023-12-15 22:38:33,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201633449] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:38:33,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:38:33,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 22:38:33,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835026141] [2023-12-15 22:38:33,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:38:33,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 22:38:33,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:38:33,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 22:38:33,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:38:33,029 INFO L87 Difference]: Start difference. First operand 1449 states and 2404 transitions. Second operand has 10 states, 9 states have (on average 7.0) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-15 22:38:38,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:38:38,063 INFO L93 Difference]: Finished difference Result 3383 states and 5753 transitions. [2023-12-15 22:38:38,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-15 22:38:38,064 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.0) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 88 [2023-12-15 22:38:38,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:38:38,074 INFO L225 Difference]: With dead ends: 3383 [2023-12-15 22:38:38,074 INFO L226 Difference]: Without dead ends: 1992 [2023-12-15 22:38:38,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2023-12-15 22:38:38,080 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 1428 mSDsluCounter, 2460 mSDsCounter, 0 mSdLazyCounter, 4843 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 2898 SdHoareTripleChecker+Invalid, 5191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 4843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:38:38,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 2898 Invalid, 5191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 4843 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-15 22:38:38,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1992 states. [2023-12-15 22:38:38,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1992 to 1451. [2023-12-15 22:38:38,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1133 states have (on average 1.6390114739629302) internal successors, (1857), 1182 states have internal predecessors, (1857), 253 states have call successors, (253), 61 states have call predecessors, (253), 64 states have return successors, (296), 243 states have call predecessors, (296), 248 states have call successors, (296) [2023-12-15 22:38:38,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 2406 transitions. [2023-12-15 22:38:38,352 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 2406 transitions. Word has length 88 [2023-12-15 22:38:38,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:38:38,353 INFO L495 AbstractCegarLoop]: Abstraction has 1451 states and 2406 transitions. [2023-12-15 22:38:38,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.0) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-15 22:38:38,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 2406 transitions. [2023-12-15 22:38:38,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-15 22:38:38,355 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:38:38,355 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:38:38,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 22:38:38,355 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:38:38,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:38:38,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1523044688, now seen corresponding path program 1 times [2023-12-15 22:38:38,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:38:38,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009293637] [2023-12-15 22:38:38,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:38:38,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:38:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:38,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:38:38,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:38,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:38,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:38,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:38,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:38,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:38:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:38,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:38,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:38,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:38,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:38,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 22:38:38,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:38,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 22:38:38,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:38,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 22:38:38,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:38,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-15 22:38:38,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:38,840 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-15 22:38:38,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:38:38,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009293637] [2023-12-15 22:38:38,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009293637] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:38:38,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:38:38,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-15 22:38:38,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403963263] [2023-12-15 22:38:38,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:38:38,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-15 22:38:38,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:38:38,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-15 22:38:38,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:38:38,842 INFO L87 Difference]: Start difference. First operand 1451 states and 2406 transitions. Second operand has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 8 states have internal predecessors, (67), 3 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-15 22:38:44,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:38:44,222 INFO L93 Difference]: Finished difference Result 3506 states and 6069 transitions. [2023-12-15 22:38:44,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-15 22:38:44,222 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 8 states have internal predecessors, (67), 3 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 88 [2023-12-15 22:38:44,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:38:44,234 INFO L225 Difference]: With dead ends: 3506 [2023-12-15 22:38:44,234 INFO L226 Difference]: Without dead ends: 2107 [2023-12-15 22:38:44,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2023-12-15 22:38:44,240 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 2073 mSDsluCounter, 3584 mSDsCounter, 0 mSdLazyCounter, 6197 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2138 SdHoareTripleChecker+Valid, 4072 SdHoareTripleChecker+Invalid, 6764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 6197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-15 22:38:44,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2138 Valid, 4072 Invalid, 6764 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [567 Valid, 6197 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-15 22:38:44,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2107 states. [2023-12-15 22:38:44,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2107 to 1475. [2023-12-15 22:38:44,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 1145 states have (on average 1.6279475982532752) internal successors, (1864), 1202 states have internal predecessors, (1864), 257 states have call successors, (257), 61 states have call predecessors, (257), 72 states have return successors, (328), 247 states have call predecessors, (328), 252 states have call successors, (328) [2023-12-15 22:38:44,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 2449 transitions. [2023-12-15 22:38:44,496 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 2449 transitions. Word has length 88 [2023-12-15 22:38:44,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:38:44,496 INFO L495 AbstractCegarLoop]: Abstraction has 1475 states and 2449 transitions. [2023-12-15 22:38:44,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 8 states have internal predecessors, (67), 3 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-15 22:38:44,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 2449 transitions. [2023-12-15 22:38:44,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-15 22:38:44,498 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:38:44,498 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:38:44,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 22:38:44,499 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:38:44,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:38:44,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1799267142, now seen corresponding path program 1 times [2023-12-15 22:38:44,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:38:44,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225065333] [2023-12-15 22:38:44,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:38:44,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:38:44,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:44,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:38:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:44,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:44,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:44,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2023-12-15 22:38:44,787 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 22:38:44,912 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 22:38:44,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 22:38:44,913 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 90 with TraceHistMax 2,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-55-1 term,while SimplifyDDA2 was simplifying 55 xjuncts wrt. a ATOM-1 context. [2023-12-15 22:38:44,915 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:38:44,917 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 22:38:44,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:38:44 BoogieIcfgContainer [2023-12-15 22:38:44,918 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 22:38:44,918 INFO L158 Benchmark]: Toolchain (without parser) took 65638.16ms. Allocated memory was 338.7MB in the beginning and 834.7MB in the end (delta: 496.0MB). Free memory was 275.7MB in the beginning and 445.2MB in the end (delta: -169.5MB). Peak memory consumption was 327.4MB. Max. memory is 8.0GB. [2023-12-15 22:38:44,919 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 203.4MB. Free memory is still 151.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 22:38:44,919 INFO L158 Benchmark]: CACSL2BoogieTranslator took 463.28ms. Allocated memory is still 338.7MB. Free memory was 275.2MB in the beginning and 232.6MB in the end (delta: 42.6MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. [2023-12-15 22:38:44,919 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.87ms. Allocated memory is still 338.7MB. Free memory was 232.6MB in the beginning and 227.5MB in the end (delta: 5.0MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-15 22:38:44,919 INFO L158 Benchmark]: Boogie Preprocessor took 158.68ms. Allocated memory is still 338.7MB. Free memory was 227.5MB in the beginning and 295.9MB in the end (delta: -68.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-15 22:38:44,919 INFO L158 Benchmark]: RCFGBuilder took 904.03ms. Allocated memory is still 338.7MB. Free memory was 295.9MB in the beginning and 198.3MB in the end (delta: 97.5MB). Peak memory consumption was 97.5MB. Max. memory is 8.0GB. [2023-12-15 22:38:44,920 INFO L158 Benchmark]: TraceAbstraction took 64054.41ms. Allocated memory was 338.7MB in the beginning and 834.7MB in the end (delta: 496.0MB). Free memory was 197.8MB in the beginning and 445.2MB in the end (delta: -247.4MB). Peak memory consumption was 249.1MB. Max. memory is 8.0GB. [2023-12-15 22:38:44,920 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 203.4MB. Free memory is still 151.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 463.28ms. Allocated memory is still 338.7MB. Free memory was 275.2MB in the beginning and 232.6MB in the end (delta: 42.6MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.87ms. Allocated memory is still 338.7MB. Free memory was 232.6MB in the beginning and 227.5MB in the end (delta: 5.0MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 158.68ms. Allocated memory is still 338.7MB. Free memory was 227.5MB in the beginning and 295.9MB in the end (delta: -68.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 904.03ms. Allocated memory is still 338.7MB. Free memory was 295.9MB in the beginning and 198.3MB in the end (delta: 97.5MB). Peak memory consumption was 97.5MB. Max. memory is 8.0GB. * TraceAbstraction took 64054.41ms. Allocated memory was 338.7MB in the beginning and 834.7MB in the end (delta: 496.0MB). Free memory was 197.8MB in the beginning and 445.2MB in the end (delta: -247.4MB). Peak memory consumption was 249.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] - GenericResultAtLocation [Line: 86]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [86] - GenericResultAtLocation [Line: 100]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [100] - GenericResultAtLocation [Line: 286]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [286] - GenericResultAtLocation [Line: 1765]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1765] - GenericResultAtLocation [Line: 1884]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1884] - GenericResultAtLocation [Line: 2546]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2546] - GenericResultAtLocation [Line: 2638]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2638] - GenericResultAtLocation [Line: 3004]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3004] - GenericResultAtLocation [Line: 3013]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3013] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 3009]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 3009). Cancelled while NwaCegarLoop was analyzing trace of length 90 with TraceHistMax 2,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-55-1 term,while SimplifyDDA2 was simplifying 55 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 22 procedures, 520 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 64.0s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 55.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21715 SdHoareTripleChecker+Valid, 38.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21006 mSDsluCounter, 25975 SdHoareTripleChecker+Invalid, 34.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21383 mSDsCounter, 5524 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43228 IncrementalHoareTripleChecker+Invalid, 48752 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5524 mSolverCounterUnsat, 4592 mSDtfsCounter, 43228 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 347 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 17.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1475occurred in iteration=10, InterpolantAutomatonStates: 140, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 3754 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 746 NumberOfCodeBlocks, 746 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 736 ConstructedInterpolants, 0 QuantifiedInterpolants, 6438 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 10/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown