/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/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-39.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 21:33:19,408 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 21:33:19,488 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 21:33:19,493 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 21:33:19,494 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 21:33:19,528 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 21:33:19,528 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 21:33:19,529 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 21:33:19,529 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 21:33:19,533 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 21:33:19,533 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 21:33:19,533 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 21:33:19,534 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 21:33:19,535 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 21:33:19,535 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 21:33:19,536 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 21:33:19,536 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 21:33:19,536 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 21:33:19,536 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 21:33:19,536 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 21:33:19,537 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 21:33:19,537 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 21:33:19,537 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 21:33:19,537 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 21:33:19,538 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 21:33:19,538 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 21:33:19,538 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 21:33:19,538 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 21:33:19,539 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 21:33:19,539 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 21:33:19,540 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 21:33:19,540 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 21:33:19,541 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:33:19,541 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 21:33:19,541 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 21:33:19,541 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 21:33:19,541 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 21:33:19,542 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 21:33:19,542 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 21:33:19,542 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 21:33:19,542 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 21:33:19,542 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 21:33:19,542 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 21:33:19,543 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 21:33:19,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 21:33:19,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 21:33:19,802 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 21:33:19,803 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 21:33:19,803 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 21:33:19,804 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-39.i [2023-12-15 21:33:20,956 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 21:33:21,145 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 21:33:21,146 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-39.i [2023-12-15 21:33:21,156 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af94f813d/4e44037ce8404aeda1fdbac60853af68/FLAGc63ff2499 [2023-12-15 21:33:21,172 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af94f813d/4e44037ce8404aeda1fdbac60853af68 [2023-12-15 21:33:21,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 21:33:21,177 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 21:33:21,180 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 21:33:21,180 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 21:33:21,185 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 21:33:21,185 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:33:21" (1/1) ... [2023-12-15 21:33:21,186 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ffbcec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:33:21, skipping insertion in model container [2023-12-15 21:33:21,186 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:33:21" (1/1) ... [2023-12-15 21:33:21,219 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 21:33:21,326 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-39.i[917,930] [2023-12-15 21:33:21,385 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:33:21,397 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 21:33:21,406 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-39.i[917,930] [2023-12-15 21:33:21,435 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:33:21,471 INFO L206 MainTranslator]: Completed translation [2023-12-15 21:33:21,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:33:21 WrapperNode [2023-12-15 21:33:21,472 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 21:33:21,476 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 21:33:21,476 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 21:33:21,477 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 21:33:21,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:33:21" (1/1) ... [2023-12-15 21:33:21,504 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:33:21" (1/1) ... [2023-12-15 21:33:21,542 INFO L138 Inliner]: procedures = 29, calls = 191, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 612 [2023-12-15 21:33:21,543 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 21:33:21,543 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 21:33:21,543 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 21:33:21,543 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 21:33:21,553 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:33:21" (1/1) ... [2023-12-15 21:33:21,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:33:21" (1/1) ... [2023-12-15 21:33:21,558 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:33:21" (1/1) ... [2023-12-15 21:33:21,577 INFO L175 MemorySlicer]: Split 160 memory accesses to 5 slices as follows [2, 32, 22, 97, 7]. 61 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 3, 3, 5, 1]. The 16 writes are split as follows [0, 3, 7, 5, 1]. [2023-12-15 21:33:21,578 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:33:21" (1/1) ... [2023-12-15 21:33:21,578 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:33:21" (1/1) ... [2023-12-15 21:33:21,595 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:33:21" (1/1) ... [2023-12-15 21:33:21,599 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:33:21" (1/1) ... [2023-12-15 21:33:21,603 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:33:21" (1/1) ... [2023-12-15 21:33:21,605 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:33:21" (1/1) ... [2023-12-15 21:33:21,615 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 21:33:21,616 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 21:33:21,616 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 21:33:21,616 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 21:33:21,617 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:33:21" (1/1) ... [2023-12-15 21:33:21,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:33:21,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:33:21,649 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 21:33:21,658 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 21:33:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 21:33:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-12-15 21:33:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-12-15 21:33:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-12-15 21:33:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2023-12-15 21:33:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2023-12-15 21:33:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-15 21:33:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-15 21:33:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-15 21:33:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-15 21:33:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-15 21:33:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-12-15 21:33:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-12-15 21:33:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2023-12-15 21:33:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2023-12-15 21:33:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2023-12-15 21:33:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-15 21:33:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-15 21:33:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-15 21:33:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-15 21:33:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-15 21:33:21,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-12-15 21:33:21,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-12-15 21:33:21,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2023-12-15 21:33:21,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2023-12-15 21:33:21,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2023-12-15 21:33:21,684 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-15 21:33:21,685 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-15 21:33:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 21:33:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 21:33:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-15 21:33:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-15 21:33:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-15 21:33:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 21:33:21,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 21:33:21,869 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 21:33:21,870 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 21:33:22,291 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 21:33:22,333 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 21:33:22,333 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 21:33:22,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:33:22 BoogieIcfgContainer [2023-12-15 21:33:22,334 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 21:33:22,335 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 21:33:22,336 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 21:33:22,338 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 21:33:22,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:33:21" (1/3) ... [2023-12-15 21:33:22,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63ad96a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:33:22, skipping insertion in model container [2023-12-15 21:33:22,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:33:21" (2/3) ... [2023-12-15 21:33:22,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63ad96a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:33:22, skipping insertion in model container [2023-12-15 21:33:22,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:33:22" (3/3) ... [2023-12-15 21:33:22,341 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-39.i [2023-12-15 21:33:22,358 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 21:33:22,359 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 21:33:22,397 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 21:33:22,402 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;@ee25fc0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 21:33:22,402 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 21:33:22,406 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 92 states have (on average 1.4782608695652173) internal successors, (136), 93 states have internal predecessors, (136), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-15 21:33:22,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-15 21:33:22,419 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:33:22,419 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:33:22,420 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:33:22,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:33:22,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1518509376, now seen corresponding path program 1 times [2023-12-15 21:33:22,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:33:22,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576456879] [2023-12-15 21:33:22,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:33:22,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:33:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:22,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 21:33:22,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:22,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:33:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:22,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-15 21:33:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:22,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 21:33:22,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:22,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 21:33:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:22,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 21:33:22,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:22,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-15 21:33:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:22,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 21:33:22,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:22,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-15 21:33:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:22,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-15 21:33:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:22,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 21:33:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:22,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 21:33:22,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:22,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 21:33:22,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:22,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 21:33:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:22,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 21:33:22,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:22,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 21:33:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:22,870 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-15 21:33:22,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:33:22,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576456879] [2023-12-15 21:33:22,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576456879] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:33:22,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:33:22,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 21:33:22,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825428901] [2023-12-15 21:33:22,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:33:22,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 21:33:22,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:33:22,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 21:33:22,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:33:22,916 INFO L87 Difference]: Start difference. First operand has 111 states, 92 states have (on average 1.4782608695652173) internal successors, (136), 93 states have internal predecessors, (136), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-15 21:33:22,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:33:22,959 INFO L93 Difference]: Finished difference Result 219 states and 350 transitions. [2023-12-15 21:33:22,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 21:33:22,963 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 123 [2023-12-15 21:33:22,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:33:22,971 INFO L225 Difference]: With dead ends: 219 [2023-12-15 21:33:22,971 INFO L226 Difference]: Without dead ends: 109 [2023-12-15 21:33:22,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:33:22,977 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:33:22,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 159 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:33:22,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-12-15 21:33:23,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2023-12-15 21:33:23,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 91 states have (on average 1.4395604395604396) internal successors, (131), 91 states have internal predecessors, (131), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-15 21:33:23,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 163 transitions. [2023-12-15 21:33:23,016 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 163 transitions. Word has length 123 [2023-12-15 21:33:23,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:33:23,017 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 163 transitions. [2023-12-15 21:33:23,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-15 21:33:23,017 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 163 transitions. [2023-12-15 21:33:23,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-15 21:33:23,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:33:23,022 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:33:23,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 21:33:23,022 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:33:23,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:33:23,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1118392932, now seen corresponding path program 1 times [2023-12-15 21:33:23,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:33:23,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530648604] [2023-12-15 21:33:23,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:33:23,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:33:23,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:27,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 21:33:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:27,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:33:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:27,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-15 21:33:27,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:27,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 21:33:27,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:27,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 21:33:27,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:27,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 21:33:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:27,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-15 21:33:27,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:27,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 21:33:27,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:27,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-15 21:33:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:27,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-15 21:33:27,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:27,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 21:33:27,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:27,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 21:33:27,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:27,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 21:33:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:27,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 21:33:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:27,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 21:33:27,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:27,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 21:33:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:27,439 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-15 21:33:27,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:33:27,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530648604] [2023-12-15 21:33:27,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530648604] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:33:27,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:33:27,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-15 21:33:27,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650501205] [2023-12-15 21:33:27,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:33:27,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-15 21:33:27,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:33:27,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-15 21:33:27,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2023-12-15 21:33:27,443 INFO L87 Difference]: Start difference. First operand 109 states and 163 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-15 21:33:31,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:33:31,649 INFO L93 Difference]: Finished difference Result 611 states and 914 transitions. [2023-12-15 21:33:31,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-15 21:33:31,651 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 123 [2023-12-15 21:33:31,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:33:31,656 INFO L225 Difference]: With dead ends: 611 [2023-12-15 21:33:31,656 INFO L226 Difference]: Without dead ends: 503 [2023-12-15 21:33:31,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=189, Invalid=1071, Unknown=0, NotChecked=0, Total=1260 [2023-12-15 21:33:31,658 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 999 mSDsluCounter, 2124 mSDsCounter, 0 mSdLazyCounter, 2285 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 2347 SdHoareTripleChecker+Invalid, 2362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 2285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-15 21:33:31,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 2347 Invalid, 2362 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [77 Valid, 2285 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-15 21:33:31,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2023-12-15 21:33:31,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 373. [2023-12-15 21:33:31,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 322 states have (on average 1.453416149068323) internal successors, (468), 325 states have internal predecessors, (468), 45 states have call successors, (45), 5 states have call predecessors, (45), 5 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-15 21:33:31,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 558 transitions. [2023-12-15 21:33:31,728 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 558 transitions. Word has length 123 [2023-12-15 21:33:31,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:33:31,730 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 558 transitions. [2023-12-15 21:33:31,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-15 21:33:31,730 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 558 transitions. [2023-12-15 21:33:31,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-15 21:33:31,737 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:33:31,737 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:33:31,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 21:33:31,738 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:33:31,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:33:31,738 INFO L85 PathProgramCache]: Analyzing trace with hash 309046306, now seen corresponding path program 1 times [2023-12-15 21:33:31,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:33:31,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795187204] [2023-12-15 21:33:31,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:33:31,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:33:31,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:32,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 21:33:32,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:32,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:33:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:32,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-15 21:33:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:32,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 21:33:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:32,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 21:33:32,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:32,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 21:33:32,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:32,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-15 21:33:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:32,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 21:33:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:32,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-15 21:33:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:32,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-15 21:33:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:32,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 21:33:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:32,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 21:33:32,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:32,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 21:33:32,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:32,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 21:33:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:32,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 21:33:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:32,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 21:33:32,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:32,647 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-15 21:33:32,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:33:32,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795187204] [2023-12-15 21:33:32,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795187204] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:33:32,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:33:32,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-15 21:33:32,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808589497] [2023-12-15 21:33:32,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:33:32,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-15 21:33:32,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:33:32,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-15 21:33:32,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-15 21:33:32,652 INFO L87 Difference]: Start difference. First operand 373 states and 558 transitions. Second operand has 11 states, 10 states have (on average 4.6) internal successors, (46), 11 states have internal predecessors, (46), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-15 21:33:33,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:33:33,344 INFO L93 Difference]: Finished difference Result 823 states and 1229 transitions. [2023-12-15 21:33:33,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 21:33:33,345 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.6) internal successors, (46), 11 states have internal predecessors, (46), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 123 [2023-12-15 21:33:33,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:33:33,352 INFO L225 Difference]: With dead ends: 823 [2023-12-15 21:33:33,352 INFO L226 Difference]: Without dead ends: 542 [2023-12-15 21:33:33,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 21:33:33,359 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 599 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 21:33:33,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 563 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 21:33:33,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2023-12-15 21:33:33,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 400. [2023-12-15 21:33:33,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 348 states have (on average 1.4511494252873562) internal successors, (505), 351 states have internal predecessors, (505), 45 states have call successors, (45), 6 states have call predecessors, (45), 6 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-15 21:33:33,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 595 transitions. [2023-12-15 21:33:33,424 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 595 transitions. Word has length 123 [2023-12-15 21:33:33,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:33:33,425 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 595 transitions. [2023-12-15 21:33:33,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.6) internal successors, (46), 11 states have internal predecessors, (46), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-15 21:33:33,428 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 595 transitions. [2023-12-15 21:33:33,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-15 21:33:33,431 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:33:33,431 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:33:33,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 21:33:33,432 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:33:33,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:33:33,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1376558370, now seen corresponding path program 1 times [2023-12-15 21:33:33,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:33:33,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936724313] [2023-12-15 21:33:33,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:33:33,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:33:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:35,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 21:33:35,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:35,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:33:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:35,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-15 21:33:35,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:35,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 21:33:35,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:35,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 21:33:35,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:35,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 21:33:35,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:35,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-15 21:33:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:35,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 21:33:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:35,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-15 21:33:35,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:35,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-15 21:33:35,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:35,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 21:33:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:35,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 21:33:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:35,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 21:33:35,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:35,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 21:33:35,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:35,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 21:33:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:35,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 21:33:35,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:35,388 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 33 proven. 12 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-15 21:33:35,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:33:35,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936724313] [2023-12-15 21:33:35,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936724313] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 21:33:35,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135602580] [2023-12-15 21:33:35,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:33:35,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:33:35,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:33:35,392 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:33:35,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 21:33:35,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:33:35,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 110 conjunts are in the unsatisfiable core [2023-12-15 21:33:35,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:33:37,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-15 21:33:37,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-15 21:33:38,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-12-15 21:33:39,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 34 [2023-12-15 21:33:41,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 112 [2023-12-15 21:33:42,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-15 21:33:42,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-15 21:33:43,393 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:33:43,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 169 treesize of output 77 [2023-12-15 21:33:43,501 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 218 proven. 204 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-15 21:33:43,502 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-15 21:34:23,394 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 21:34:23,394 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 21:34:23,913 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 21:34:23,921 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-15 21:34:24,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:34:24,114 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 124 with TraceHistMax 16,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 63 known predicates. [2023-12-15 21:34:24,121 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-15 21:34:24,123 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 21:34:24,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 09:34:24 BoogieIcfgContainer [2023-12-15 21:34:24,125 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 21:34:24,126 INFO L158 Benchmark]: Toolchain (without parser) took 62948.52ms. Allocated memory was 202.4MB in the beginning and 508.6MB in the end (delta: 306.2MB). Free memory was 135.6MB in the beginning and 423.3MB in the end (delta: -287.6MB). Peak memory consumption was 19.5MB. Max. memory is 8.0GB. [2023-12-15 21:34:24,126 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 202.4MB. Free memory is still 151.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 21:34:24,126 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.13ms. Allocated memory was 202.4MB in the beginning and 264.2MB in the end (delta: 61.9MB). Free memory was 135.4MB in the beginning and 229.7MB in the end (delta: -94.3MB). Peak memory consumption was 20.8MB. Max. memory is 8.0GB. [2023-12-15 21:34:24,126 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.50ms. Allocated memory is still 264.2MB. Free memory was 229.7MB in the beginning and 225.9MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-15 21:34:24,127 INFO L158 Benchmark]: Boogie Preprocessor took 71.79ms. Allocated memory is still 264.2MB. Free memory was 225.9MB in the beginning and 221.2MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-15 21:34:24,127 INFO L158 Benchmark]: RCFGBuilder took 717.85ms. Allocated memory is still 264.2MB. Free memory was 220.7MB in the beginning and 183.5MB in the end (delta: 37.2MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2023-12-15 21:34:24,127 INFO L158 Benchmark]: TraceAbstraction took 61789.88ms. Allocated memory was 264.2MB in the beginning and 508.6MB in the end (delta: 244.3MB). Free memory was 182.4MB in the beginning and 423.3MB in the end (delta: -240.8MB). Peak memory consumption was 4.0MB. Max. memory is 8.0GB. [2023-12-15 21:34:24,129 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 202.4MB. Free memory is still 151.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 292.13ms. Allocated memory was 202.4MB in the beginning and 264.2MB in the end (delta: 61.9MB). Free memory was 135.4MB in the beginning and 229.7MB in the end (delta: -94.3MB). Peak memory consumption was 20.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 66.50ms. Allocated memory is still 264.2MB. Free memory was 229.7MB in the beginning and 225.9MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 71.79ms. Allocated memory is still 264.2MB. Free memory was 225.9MB in the beginning and 221.2MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 717.85ms. Allocated memory is still 264.2MB. Free memory was 220.7MB in the beginning and 183.5MB in the end (delta: 37.2MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. * TraceAbstraction took 61789.88ms. Allocated memory was 264.2MB in the beginning and 508.6MB in the end (delta: 244.3MB). Free memory was 182.4MB in the beginning and 423.3MB in the end (delta: -240.8MB). Peak memory consumption was 4.0MB. Max. memory is 8.0GB. * 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: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 124 with TraceHistMax 16,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 63 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 111 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 61.7s, OverallIterations: 4, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1599 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1598 mSDsluCounter, 3069 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2590 mSDsCounter, 116 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3021 IncrementalHoareTripleChecker+Invalid, 3137 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 116 mSolverCounterUnsat, 479 mSDtfsCounter, 3021 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=400occurred in iteration=3, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 272 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 369 NumberOfCodeBlocks, 369 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 366 ConstructedInterpolants, 0 QuantifiedInterpolants, 3856 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1440/1440 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