/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-49.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 01:57:36,385 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 01:57:36,428 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 01:57:36,434 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 01:57:36,435 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 01:57:36,455 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 01:57:36,455 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 01:57:36,456 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 01:57:36,456 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 01:57:36,456 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 01:57:36,456 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 01:57:36,457 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 01:57:36,457 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 01:57:36,457 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 01:57:36,457 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 01:57:36,458 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 01:57:36,458 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 01:57:36,458 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 01:57:36,458 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 01:57:36,459 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 01:57:36,459 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 01:57:36,465 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 01:57:36,465 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 01:57:36,465 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 01:57:36,465 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 01:57:36,465 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 01:57:36,466 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 01:57:36,466 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 01:57:36,466 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 01:57:36,466 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 01:57:36,467 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 01:57:36,467 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 01:57:36,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 01:57:36,467 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 01:57:36,468 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 01:57:36,468 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 01:57:36,468 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 01:57:36,468 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 01:57:36,469 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 01:57:36,469 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 01:57:36,469 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 01:57:36,474 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 01:57:36,474 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 01:57:36,474 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 01:57:36,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 01:57:36,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 01:57:36,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 01:57:36,682 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 01:57:36,684 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 01:57:36,684 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-49.i [2023-12-21 01:57:37,825 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 01:57:38,003 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 01:57:38,004 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-49.i [2023-12-21 01:57:38,015 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76795ac86/7fb087206e5c4b28a01dbe20d84a6ae7/FLAG82cfb7754 [2023-12-21 01:57:38,376 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76795ac86/7fb087206e5c4b28a01dbe20d84a6ae7 [2023-12-21 01:57:38,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 01:57:38,378 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 01:57:38,379 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 01:57:38,379 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 01:57:38,388 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 01:57:38,389 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:57:38" (1/1) ... [2023-12-21 01:57:38,390 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31762ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:57:38, skipping insertion in model container [2023-12-21 01:57:38,390 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:57:38" (1/1) ... [2023-12-21 01:57:38,420 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 01:57:38,540 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-49.i[917,930] [2023-12-21 01:57:38,619 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 01:57:38,631 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 01:57:38,641 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-49.i[917,930] [2023-12-21 01:57:38,670 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 01:57:38,689 INFO L206 MainTranslator]: Completed translation [2023-12-21 01:57:38,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:57:38 WrapperNode [2023-12-21 01:57:38,691 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 01:57:38,692 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 01:57:38,693 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 01:57:38,693 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 01:57:38,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:57:38" (1/1) ... [2023-12-21 01:57:38,714 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:57:38" (1/1) ... [2023-12-21 01:57:38,747 INFO L138 Inliner]: procedures = 29, calls = 195, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 666 [2023-12-21 01:57:38,748 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 01:57:38,748 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 01:57:38,748 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 01:57:38,749 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 01:57:38,759 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:57:38" (1/1) ... [2023-12-21 01:57:38,759 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:57:38" (1/1) ... [2023-12-21 01:57:38,764 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:57:38" (1/1) ... [2023-12-21 01:57:38,782 INFO L175 MemorySlicer]: Split 166 memory accesses to 5 slices as follows [2, 34, 18, 19, 93]. 56 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 2, 2, 4]. The 17 writes are split as follows [0, 6, 2, 2, 7]. [2023-12-21 01:57:38,783 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:57:38" (1/1) ... [2023-12-21 01:57:38,783 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:57:38" (1/1) ... [2023-12-21 01:57:38,795 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:57:38" (1/1) ... [2023-12-21 01:57:38,798 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:57:38" (1/1) ... [2023-12-21 01:57:38,800 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:57:38" (1/1) ... [2023-12-21 01:57:38,803 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:57:38" (1/1) ... [2023-12-21 01:57:38,807 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 01:57:38,807 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 01:57:38,807 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 01:57:38,807 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 01:57:38,808 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:57:38" (1/1) ... [2023-12-21 01:57:38,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 01:57:38,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:57:38,830 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) [2023-12-21 01:57:38,860 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 [2023-12-21 01:57:38,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 01:57:38,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-12-21 01:57:38,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-12-21 01:57:38,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-12-21 01:57:38,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2023-12-21 01:57:38,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2023-12-21 01:57:38,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-21 01:57:38,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-21 01:57:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-21 01:57:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-21 01:57:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-21 01:57:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-12-21 01:57:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-12-21 01:57:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2023-12-21 01:57:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2023-12-21 01:57:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2023-12-21 01:57:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-21 01:57:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-21 01:57:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-21 01:57:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-21 01:57:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-21 01:57:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-12-21 01:57:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-12-21 01:57:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2023-12-21 01:57:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2023-12-21 01:57:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2023-12-21 01:57:38,882 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-21 01:57:38,882 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-21 01:57:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 01:57:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 01:57:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 01:57:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 01:57:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-21 01:57:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 01:57:38,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 01:57:39,009 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 01:57:39,011 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 01:57:39,434 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 01:57:39,460 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 01:57:39,461 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 01:57:39,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:57:39 BoogieIcfgContainer [2023-12-21 01:57:39,461 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 01:57:39,463 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 01:57:39,463 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 01:57:39,465 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 01:57:39,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:57:38" (1/3) ... [2023-12-21 01:57:39,465 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4acdee72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:57:39, skipping insertion in model container [2023-12-21 01:57:39,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:57:38" (2/3) ... [2023-12-21 01:57:39,466 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4acdee72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:57:39, skipping insertion in model container [2023-12-21 01:57:39,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:57:39" (3/3) ... [2023-12-21 01:57:39,466 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-49.i [2023-12-21 01:57:39,477 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 01:57:39,478 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 01:57:39,512 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 01:57:39,518 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;@63772cb5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 01:57:39,518 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 01:57:39,521 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 106 states have (on average 1.509433962264151) internal successors, (160), 107 states have internal predecessors, (160), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 01:57:39,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-21 01:57:39,533 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:57:39,534 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:57:39,535 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:57:39,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:57:39,538 INFO L85 PathProgramCache]: Analyzing trace with hash 2062007830, now seen corresponding path program 1 times [2023-12-21 01:57:39,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:57:39,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758844070] [2023-12-21 01:57:39,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:57:39,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:57:39,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:39,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:57:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:39,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:57:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:39,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:57:39,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:39,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:57:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:39,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-21 01:57:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:39,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:57:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:39,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:57:39,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:39,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:57:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:39,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:57:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:39,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:57:39,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:39,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:57:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:39,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:57:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:39,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:57:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:39,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 01:57:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:39,905 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:57:39,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:57:39,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758844070] [2023-12-21 01:57:39,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758844070] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:57:39,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:57:39,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 01:57:39,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584271220] [2023-12-21 01:57:39,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:57:39,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 01:57:39,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:57:39,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 01:57:39,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 01:57:39,950 INFO L87 Difference]: Start difference. First operand has 123 states, 106 states have (on average 1.509433962264151) internal successors, (160), 107 states have internal predecessors, (160), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:57:39,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:57:39,992 INFO L93 Difference]: Finished difference Result 243 states and 388 transitions. [2023-12-21 01:57:39,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 01:57:39,994 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 110 [2023-12-21 01:57:39,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:57:39,999 INFO L225 Difference]: With dead ends: 243 [2023-12-21 01:57:39,999 INFO L226 Difference]: Without dead ends: 121 [2023-12-21 01:57:40,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 01:57:40,003 INFO L413 NwaCegarLoop]: 179 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, 179 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 [2023-12-21 01:57:40,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 179 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 01:57:40,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-12-21 01:57:40,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2023-12-21 01:57:40,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 105 states have (on average 1.4761904761904763) internal successors, (155), 105 states have internal predecessors, (155), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 01:57:40,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 183 transitions. [2023-12-21 01:57:40,051 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 183 transitions. Word has length 110 [2023-12-21 01:57:40,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:57:40,051 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 183 transitions. [2023-12-21 01:57:40,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:57:40,052 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 183 transitions. [2023-12-21 01:57:40,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-21 01:57:40,055 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:57:40,055 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:57:40,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 01:57:40,056 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:57:40,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:57:40,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1484175426, now seen corresponding path program 1 times [2023-12-21 01:57:40,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:57:40,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140018292] [2023-12-21 01:57:40,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:57:40,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:57:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:40,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:57:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:40,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:57:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:40,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:57:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:40,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:57:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:40,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-21 01:57:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:40,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:57:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:40,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:57:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:40,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:57:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:40,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:57:40,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:40,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:57:40,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:40,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:57:40,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:40,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:57:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:40,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:57:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:40,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 01:57:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:40,655 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:57:40,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:57:40,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140018292] [2023-12-21 01:57:40,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140018292] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:57:40,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:57:40,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 01:57:40,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340185118] [2023-12-21 01:57:40,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:57:40,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 01:57:40,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:57:40,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 01:57:40,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 01:57:40,662 INFO L87 Difference]: Start difference. First operand 121 states and 183 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:57:40,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:57:40,879 INFO L93 Difference]: Finished difference Result 338 states and 508 transitions. [2023-12-21 01:57:40,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 01:57:40,879 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 110 [2023-12-21 01:57:40,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:57:40,883 INFO L225 Difference]: With dead ends: 338 [2023-12-21 01:57:40,884 INFO L226 Difference]: Without dead ends: 218 [2023-12-21 01:57:40,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 01:57:40,888 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 173 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:57:40,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 716 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:57:40,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-12-21 01:57:40,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 197. [2023-12-21 01:57:40,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 172 states have (on average 1.4651162790697674) internal successors, (252), 173 states have internal predecessors, (252), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-21 01:57:40,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 296 transitions. [2023-12-21 01:57:40,907 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 296 transitions. Word has length 110 [2023-12-21 01:57:40,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:57:40,907 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 296 transitions. [2023-12-21 01:57:40,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:57:40,907 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 296 transitions. [2023-12-21 01:57:40,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-21 01:57:40,909 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:57:40,909 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:57:40,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 01:57:40,909 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:57:40,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:57:40,909 INFO L85 PathProgramCache]: Analyzing trace with hash -957926141, now seen corresponding path program 1 times [2023-12-21 01:57:40,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:57:40,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496778033] [2023-12-21 01:57:40,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:57:40,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:57:40,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:41,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:57:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:41,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:57:41,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:41,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:57:41,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:41,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:57:41,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:41,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-21 01:57:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:41,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:57:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:41,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:57:41,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:41,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:57:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:41,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:57:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:41,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:57:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:41,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:57:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:41,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:57:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:41,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:57:41,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:41,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 01:57:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:41,833 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-21 01:57:41,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:57:41,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496778033] [2023-12-21 01:57:41,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496778033] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 01:57:41,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478518188] [2023-12-21 01:57:41,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:57:41,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:57:41,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:57:41,849 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) [2023-12-21 01:57:41,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 01:57:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:57:42,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-21 01:57:42,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:57:42,183 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 [2023-12-21 01:57:42,464 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 25 treesize of output 13 [2023-12-21 01:57:43,182 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-12-21 01:57:43,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 59 [2023-12-21 01:57:43,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 62 [2023-12-21 01:57:43,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2023-12-21 01:57:43,301 INFO L349 Elim1Store]: treesize reduction 74, result has 26.7 percent of original size [2023-12-21 01:57:43,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 42 treesize of output 84 [2023-12-21 01:57:43,364 INFO L349 Elim1Store]: treesize reduction 48, result has 44.8 percent of original size [2023-12-21 01:57:43,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 39 treesize of output 75 [2023-12-21 01:57:43,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 23 [2023-12-21 01:57:43,503 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-12-21 01:57:43,503 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 01:57:43,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478518188] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 01:57:43,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 01:57:43,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 18 [2023-12-21 01:57:43,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682803573] [2023-12-21 01:57:43,643 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 01:57:43,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-21 01:57:43,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:57:43,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-21 01:57:43,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2023-12-21 01:57:43,645 INFO L87 Difference]: Start difference. First operand 197 states and 296 transitions. Second operand has 18 states, 16 states have (on average 5.0) internal successors, (80), 16 states have internal predecessors, (80), 7 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2023-12-21 01:57:44,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:57:44,101 INFO L93 Difference]: Finished difference Result 410 states and 606 transitions. [2023-12-21 01:57:44,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 01:57:44,101 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 5.0) internal successors, (80), 16 states have internal predecessors, (80), 7 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) Word has length 112 [2023-12-21 01:57:44,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:57:44,104 INFO L225 Difference]: With dead ends: 410 [2023-12-21 01:57:44,104 INFO L226 Difference]: Without dead ends: 214 [2023-12-21 01:57:44,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 151 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=156, Invalid=494, Unknown=0, NotChecked=0, Total=650 [2023-12-21 01:57:44,105 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 415 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 01:57:44,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 1111 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 01:57:44,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-12-21 01:57:44,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 205. [2023-12-21 01:57:44,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 178 states have (on average 1.4438202247191012) internal successors, (257), 179 states have internal predecessors, (257), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-21 01:57:44,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 301 transitions. [2023-12-21 01:57:44,116 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 301 transitions. Word has length 112 [2023-12-21 01:57:44,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:57:44,116 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 301 transitions. [2023-12-21 01:57:44,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 5.0) internal successors, (80), 16 states have internal predecessors, (80), 7 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2023-12-21 01:57:44,117 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 301 transitions. [2023-12-21 01:57:44,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 01:57:44,118 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:57:44,118 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:57:44,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 01:57:44,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:57:44,324 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:57:44,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:57:44,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1753774153, now seen corresponding path program 1 times [2023-12-21 01:57:44,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:57:44,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784125709] [2023-12-21 01:57:44,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:57:44,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:57:44,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat