/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-6.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 04:22:35,010 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 04:22:35,103 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 04:22:35,108 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 04:22:35,108 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 04:22:35,136 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 04:22:35,137 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 04:22:35,137 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 04:22:35,138 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 04:22:35,141 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 04:22:35,141 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 04:22:35,142 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 04:22:35,142 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 04:22:35,144 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 04:22:35,144 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 04:22:35,144 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 04:22:35,144 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 04:22:35,144 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 04:22:35,145 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 04:22:35,146 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 04:22:35,146 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 04:22:35,146 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 04:22:35,146 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 04:22:35,147 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 04:22:35,147 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 04:22:35,147 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 04:22:35,147 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 04:22:35,147 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 04:22:35,148 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 04:22:35,148 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 04:22:35,149 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 04:22:35,149 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 04:22:35,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:22:35,149 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 04:22:35,150 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 04:22:35,150 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 04:22:35,150 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 04:22:35,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 04:22:35,150 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 04:22:35,150 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 04:22:35,150 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 04:22:35,151 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 04:22:35,151 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 04:22:35,151 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 04:22:35,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 04:22:35,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 04:22:35,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 04:22:35,411 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 04:22:35,412 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 04:22:35,413 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-6.i [2023-12-16 04:22:36,595 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 04:22:36,804 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 04:22:36,805 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-6.i [2023-12-16 04:22:36,814 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d92418d1b/94627a651da84dc7bf2b59215d524835/FLAGc4657d6c7 [2023-12-16 04:22:37,160 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d92418d1b/94627a651da84dc7bf2b59215d524835 [2023-12-16 04:22:37,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 04:22:37,163 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 04:22:37,164 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 04:22:37,164 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 04:22:37,171 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 04:22:37,171 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:22:37" (1/1) ... [2023-12-16 04:22:37,172 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c06dbf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:22:37, skipping insertion in model container [2023-12-16 04:22:37,172 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:22:37" (1/1) ... [2023-12-16 04:22:37,200 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 04:22:37,314 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-6.i[916,929] [2023-12-16 04:22:37,375 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:22:37,388 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 04:22:37,396 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-6.i[916,929] [2023-12-16 04:22:37,446 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:22:37,472 INFO L206 MainTranslator]: Completed translation [2023-12-16 04:22:37,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:22:37 WrapperNode [2023-12-16 04:22:37,473 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 04:22:37,474 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 04:22:37,474 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 04:22:37,474 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 04:22:37,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:22:37" (1/1) ... [2023-12-16 04:22:37,501 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:22:37" (1/1) ... [2023-12-16 04:22:37,548 INFO L138 Inliner]: procedures = 29, calls = 170, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 533 [2023-12-16 04:22:37,548 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 04:22:37,549 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 04:22:37,549 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 04:22:37,549 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 04:22:37,558 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:22:37" (1/1) ... [2023-12-16 04:22:37,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:22:37" (1/1) ... [2023-12-16 04:22:37,570 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:22:37" (1/1) ... [2023-12-16 04:22:37,613 INFO L175 MemorySlicer]: Split 135 memory accesses to 6 slices as follows [2, 16, 32, 28, 21, 36]. 27 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 3, 4, 3, 3, 3]. The 18 writes are split as follows [0, 3, 4, 3, 4, 4]. [2023-12-16 04:22:37,614 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:22:37" (1/1) ... [2023-12-16 04:22:37,614 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:22:37" (1/1) ... [2023-12-16 04:22:37,641 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:22:37" (1/1) ... [2023-12-16 04:22:37,645 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:22:37" (1/1) ... [2023-12-16 04:22:37,649 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:22:37" (1/1) ... [2023-12-16 04:22:37,666 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:22:37" (1/1) ... [2023-12-16 04:22:37,672 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 04:22:37,673 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 04:22:37,673 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 04:22:37,673 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 04:22:37,674 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:22:37" (1/1) ... [2023-12-16 04:22:37,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:22:37,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:22:37,713 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) [2023-12-16 04:22:37,739 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 [2023-12-16 04:22:37,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 04:22:37,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-16 04:22:37,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-16 04:22:37,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-16 04:22:37,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-16 04:22:37,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-16 04:22:37,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-16 04:22:37,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-12-16 04:22:37,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-12-16 04:22:37,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-12-16 04:22:37,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2023-12-16 04:22:37,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2023-12-16 04:22:37,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2023-12-16 04:22:37,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-12-16 04:22:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-12-16 04:22:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2023-12-16 04:22:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2023-12-16 04:22:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2023-12-16 04:22:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2023-12-16 04:22:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-16 04:22:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-16 04:22:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-16 04:22:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-16 04:22:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-16 04:22:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-16 04:22:37,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-12-16 04:22:37,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-12-16 04:22:37,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2023-12-16 04:22:37,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2023-12-16 04:22:37,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2023-12-16 04:22:37,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2023-12-16 04:22:37,752 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 04:22:37,752 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 04:22:37,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 04:22:37,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 04:22:37,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-16 04:22:37,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-16 04:22:37,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-16 04:22:37,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-16 04:22:37,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 04:22:37,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 04:22:37,908 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 04:22:37,910 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 04:22:38,418 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 04:22:38,445 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 04:22:38,445 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 04:22:38,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:22:38 BoogieIcfgContainer [2023-12-16 04:22:38,445 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 04:22:38,447 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 04:22:38,447 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 04:22:38,450 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 04:22:38,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:22:37" (1/3) ... [2023-12-16 04:22:38,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2023e2e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:22:38, skipping insertion in model container [2023-12-16 04:22:38,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:22:37" (2/3) ... [2023-12-16 04:22:38,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2023e2e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:22:38, skipping insertion in model container [2023-12-16 04:22:38,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:22:38" (3/3) ... [2023-12-16 04:22:38,452 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-6.i [2023-12-16 04:22:38,467 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 04:22:38,468 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 04:22:38,509 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 04:22:38,515 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;@31dcdf37, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 04:22:38,515 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 04:22:38,519 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 93 states have (on average 1.4408602150537635) internal successors, (134), 94 states have internal predecessors, (134), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-16 04:22:38,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 04:22:38,535 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:22:38,536 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:22:38,536 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:22:38,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:22:38,542 INFO L85 PathProgramCache]: Analyzing trace with hash -455682870, now seen corresponding path program 1 times [2023-12-16 04:22:38,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:22:38,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156286538] [2023-12-16 04:22:38,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:22:38,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:22:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:22:38,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:22:38,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156286538] [2023-12-16 04:22:38,779 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 04:22:38,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927086712] [2023-12-16 04:22:38,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:22:38,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:22:38,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:22:38,788 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) [2023-12-16 04:22:38,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 04:22:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:22:39,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 04:22:39,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:22:39,125 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2023-12-16 04:22:39,126 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:22:39,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927086712] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:22:39,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:22:39,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 04:22:39,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040434757] [2023-12-16 04:22:39,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:22:39,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 04:22:39,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:22:39,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 04:22:39,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:22:39,172 INFO L87 Difference]: Start difference. First operand has 115 states, 93 states have (on average 1.4408602150537635) internal successors, (134), 94 states have internal predecessors, (134), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:22:39,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:22:39,226 INFO L93 Difference]: Finished difference Result 227 states and 361 transitions. [2023-12-16 04:22:39,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 04:22:39,233 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 153 [2023-12-16 04:22:39,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:22:39,240 INFO L225 Difference]: With dead ends: 227 [2023-12-16 04:22:39,240 INFO L226 Difference]: Without dead ends: 113 [2023-12-16 04:22:39,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:22:39,246 INFO L413 NwaCegarLoop]: 163 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, 163 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 [2023-12-16 04:22:39,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 163 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:22:39,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-12-16 04:22:39,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2023-12-16 04:22:39,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 92 states have (on average 1.4021739130434783) internal successors, (129), 92 states have internal predecessors, (129), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-16 04:22:39,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 167 transitions. [2023-12-16 04:22:39,302 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 167 transitions. Word has length 153 [2023-12-16 04:22:39,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:22:39,302 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 167 transitions. [2023-12-16 04:22:39,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:22:39,303 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 167 transitions. [2023-12-16 04:22:39,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 04:22:39,306 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:22:39,306 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:22:39,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 04:22:39,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-16 04:22:39,514 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:22:39,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:22:39,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1843939048, now seen corresponding path program 1 times [2023-12-16 04:22:39,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:22:39,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758154455] [2023-12-16 04:22:39,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:22:39,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:22:39,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:22:39,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:22:39,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758154455] [2023-12-16 04:22:39,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 04:22:39,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080929282] [2023-12-16 04:22:39,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:22:39,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:22:39,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:22:39,689 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:22:39,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 04:22:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:22:39,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 04:22:39,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:22:40,030 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2023-12-16 04:22:40,030 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:22:40,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080929282] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:22:40,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:22:40,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:22:40,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286615220] [2023-12-16 04:22:40,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:22:40,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:22:40,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:22:40,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:22:40,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:22:40,033 INFO L87 Difference]: Start difference. First operand 113 states and 167 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:22:40,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:22:40,112 INFO L93 Difference]: Finished difference Result 231 states and 342 transitions. [2023-12-16 04:22:40,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:22:40,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 153 [2023-12-16 04:22:40,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:22:40,117 INFO L225 Difference]: With dead ends: 231 [2023-12-16 04:22:40,118 INFO L226 Difference]: Without dead ends: 119 [2023-12-16 04:22:40,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:22:40,119 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 10 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:22:40,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 481 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:22:40,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-12-16 04:22:40,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 115. [2023-12-16 04:22:40,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 94 states have (on average 1.3936170212765957) internal successors, (131), 94 states have internal predecessors, (131), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-16 04:22:40,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 169 transitions. [2023-12-16 04:22:40,143 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 169 transitions. Word has length 153 [2023-12-16 04:22:40,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:22:40,144 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 169 transitions. [2023-12-16 04:22:40,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:22:40,147 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 169 transitions. [2023-12-16 04:22:40,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 04:22:40,154 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:22:40,154 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:22:40,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 04:22:40,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-16 04:22:40,355 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:22:40,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:22:40,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1412443674, now seen corresponding path program 1 times [2023-12-16 04:22:40,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:22:40,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018540646] [2023-12-16 04:22:40,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:22:40,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:22:40,435 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:22:40,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2068880216] [2023-12-16 04:22:40,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:22:40,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:22:40,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:22:40,437 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:22:40,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 04:22:40,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:22:40,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 04:22:40,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:22:40,709 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:22:40,709 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:22:40,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:22:40,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018540646] [2023-12-16 04:22:40,709 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:22:40,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068880216] [2023-12-16 04:22:40,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068880216] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:22:40,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:22:40,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:22:40,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173176984] [2023-12-16 04:22:40,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:22:40,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:22:40,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:22:40,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:22:40,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:22:40,714 INFO L87 Difference]: Start difference. First operand 115 states and 169 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:22:40,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:22:40,749 INFO L93 Difference]: Finished difference Result 252 states and 371 transitions. [2023-12-16 04:22:40,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:22:40,749 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2023-12-16 04:22:40,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:22:40,751 INFO L225 Difference]: With dead ends: 252 [2023-12-16 04:22:40,751 INFO L226 Difference]: Without dead ends: 138 [2023-12-16 04:22:40,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:22:40,753 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 43 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:22:40,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 472 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:22:40,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-12-16 04:22:40,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 117. [2023-12-16 04:22:40,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 96 states have (on average 1.3854166666666667) internal successors, (133), 96 states have internal predecessors, (133), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-16 04:22:40,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 171 transitions. [2023-12-16 04:22:40,762 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 171 transitions. Word has length 153 [2023-12-16 04:22:40,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:22:40,763 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 171 transitions. [2023-12-16 04:22:40,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:22:40,763 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 171 transitions. [2023-12-16 04:22:40,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-16 04:22:40,764 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:22:40,764 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:22:40,776 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-16 04:22:40,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:22:40,975 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:22:40,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:22:40,976 INFO L85 PathProgramCache]: Analyzing trace with hash -366889484, now seen corresponding path program 1 times [2023-12-16 04:22:40,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:22:40,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518872678] [2023-12-16 04:22:40,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:22:40,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:22:41,026 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:22:41,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1906429848] [2023-12-16 04:22:41,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:22:41,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:22:41,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:22:41,028 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:22:41,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 04:22:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:22:41,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 04:22:41,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:22:41,287 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 15 treesize of output 7 [2023-12-16 04:22:41,295 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:22:41,295 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:22:41,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:22:41,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518872678] [2023-12-16 04:22:41,295 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:22:41,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906429848] [2023-12-16 04:22:41,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906429848] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:22:41,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:22:41,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 04:22:41,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149240562] [2023-12-16 04:22:41,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:22:41,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 04:22:41,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:22:41,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 04:22:41,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:22:41,300 INFO L87 Difference]: Start difference. First operand 117 states and 171 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:22:41,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:22:41,324 INFO L93 Difference]: Finished difference Result 233 states and 341 transitions. [2023-12-16 04:22:41,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 04:22:41,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2023-12-16 04:22:41,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:22:41,329 INFO L225 Difference]: With dead ends: 233 [2023-12-16 04:22:41,329 INFO L226 Difference]: Without dead ends: 117 [2023-12-16 04:22:41,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:22:41,335 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 2 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:22:41,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 317 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:22:41,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-12-16 04:22:41,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2023-12-16 04:22:41,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 96 states have (on average 1.375) internal successors, (132), 96 states have internal predecessors, (132), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-16 04:22:41,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 170 transitions. [2023-12-16 04:22:41,352 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 170 transitions. Word has length 155 [2023-12-16 04:22:41,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:22:41,353 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 170 transitions. [2023-12-16 04:22:41,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:22:41,353 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 170 transitions. [2023-12-16 04:22:41,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-16 04:22:41,354 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:22:41,354 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:22:41,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 04:22:41,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:22:41,555 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:22:41,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:22:41,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1184537934, now seen corresponding path program 1 times [2023-12-16 04:22:41,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:22:41,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389942022] [2023-12-16 04:22:41,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:22:41,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:22:41,596 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:22:41,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1287840842] [2023-12-16 04:22:41,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:22:41,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:22:41,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:22:41,598 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:22:41,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 04:22:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:22:41,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 04:22:41,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:22:41,844 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 15 treesize of output 7 [2023-12-16 04:22:41,849 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:22:41,850 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:22:41,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:22:41,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389942022] [2023-12-16 04:22:41,850 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:22:41,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287840842] [2023-12-16 04:22:41,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287840842] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:22:41,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:22:41,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 04:22:41,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156861307] [2023-12-16 04:22:41,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:22:41,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 04:22:41,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:22:41,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 04:22:41,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:22:41,852 INFO L87 Difference]: Start difference. First operand 117 states and 170 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:22:41,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:22:41,871 INFO L93 Difference]: Finished difference Result 233 states and 339 transitions. [2023-12-16 04:22:41,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 04:22:41,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2023-12-16 04:22:41,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:22:41,873 INFO L225 Difference]: With dead ends: 233 [2023-12-16 04:22:41,873 INFO L226 Difference]: Without dead ends: 117 [2023-12-16 04:22:41,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:22:41,874 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 40 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:22:41,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 280 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:22:41,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-12-16 04:22:41,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2023-12-16 04:22:41,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 96 states have (on average 1.3645833333333333) internal successors, (131), 96 states have internal predecessors, (131), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-16 04:22:41,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 169 transitions. [2023-12-16 04:22:41,881 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 169 transitions. Word has length 155 [2023-12-16 04:22:41,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:22:41,882 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 169 transitions. [2023-12-16 04:22:41,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:22:41,882 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 169 transitions. [2023-12-16 04:22:41,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-16 04:22:41,883 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:22:41,884 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:22:41,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 04:22:42,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:22:42,093 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:22:42,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:22:42,093 INFO L85 PathProgramCache]: Analyzing trace with hash 2089361008, now seen corresponding path program 1 times [2023-12-16 04:22:42,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:22:42,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031664671] [2023-12-16 04:22:42,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:22:42,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:22:42,166 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:22:42,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1717328951] [2023-12-16 04:22:42,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:22:42,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:22:42,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:22:42,167 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:22:42,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-16 04:22:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:22:42,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-16 04:22:42,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:22:42,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:22:42,973 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 15 treesize of output 15 [2023-12-16 04:22:43,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:22:43,132 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 04:22:43,133 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 1 case distinctions, treesize of input 52 treesize of output 28 [2023-12-16 04:22:43,195 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:22:43,195 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:22:43,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:22:43,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031664671] [2023-12-16 04:22:43,196 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:22:43,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717328951] [2023-12-16 04:22:43,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717328951] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:22:43,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:22:43,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 04:22:43,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640883582] [2023-12-16 04:22:43,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:22:43,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 04:22:43,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:22:43,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 04:22:43,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-16 04:22:43,198 INFO L87 Difference]: Start difference. First operand 117 states and 169 transitions. Second operand has 10 states, 10 states have (on average 6.3) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:22:43,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:22:43,729 INFO L93 Difference]: Finished difference Result 392 states and 566 transitions. [2023-12-16 04:22:43,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 04:22:43,730 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2023-12-16 04:22:43,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:22:43,733 INFO L225 Difference]: With dead ends: 392 [2023-12-16 04:22:43,733 INFO L226 Difference]: Without dead ends: 276 [2023-12-16 04:22:43,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2023-12-16 04:22:43,735 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 415 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:22:43,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 1326 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:22:43,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2023-12-16 04:22:43,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 219. [2023-12-16 04:22:43,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 183 states have (on average 1.360655737704918) internal successors, (249), 184 states have internal predecessors, (249), 33 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-16 04:22:43,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 315 transitions. [2023-12-16 04:22:43,762 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 315 transitions. Word has length 155 [2023-12-16 04:22:43,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:22:43,763 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 315 transitions. [2023-12-16 04:22:43,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:22:43,763 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 315 transitions. [2023-12-16 04:22:43,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-16 04:22:43,767 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:22:43,769 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:22:43,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-16 04:22:43,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:22:43,978 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:22:43,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:22:43,978 INFO L85 PathProgramCache]: Analyzing trace with hash -302267351, now seen corresponding path program 1 times [2023-12-16 04:22:43,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:22:43,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608415763] [2023-12-16 04:22:43,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:22:43,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:22:44,017 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:22:44,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1086459391] [2023-12-16 04:22:44,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:22:44,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:22:44,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:22:44,018 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:22:44,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-16 04:22:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:22:44,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-16 04:22:44,262 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:22:44,725 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 [2023-12-16 04:22:44,811 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 [2023-12-16 04:22:45,144 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 99 treesize of output 75 [2023-12-16 04:22:45,204 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 74 treesize of output 54 [2023-12-16 04:22:45,216 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 58 treesize of output 46 [2023-12-16 04:22:45,276 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-12-16 04:22:45,276 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:22:45,768 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 173 treesize of output 141 [2023-12-16 04:22:50,346 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse2 (select (select |c_#memory_int#3| c_~signed_long_int_Array_0_arraysigned_long_int_Array_0Var2_Pointer~0.base) c_~signed_long_int_Array_0_arraysigned_long_int_Array_0Var2_Pointer~0.offset))) (let ((.cse0 (< 0 (+ .cse2 1))) (.cse5 (< |c_ULTIMATE.start_step_#t~ite34#1| 0)) (.cse3 (+ (mod (select (select |c_#memory_int#4| c_~unsigned_long_int_Array_0_arrayunsigned_long_int_Array_0Var0_Pointer~0.base) c_~unsigned_long_int_Array_0_arrayunsigned_long_int_Array_0Var0_Pointer~0.offset) 4294967296) 1)) (.cse1 (mod |c_ULTIMATE.start_step_~stepLocal_1~0#1| 4294967296)) (.cse10 (< .cse2 0))) (and (or .cse0 (and (forall ((v_z_3 Int)) (or (< 65535 v_z_3) (< .cse1 (mod (div |c_ULTIMATE.start_step_#t~ite34#1| v_z_3) 4294967296)) (< (mod (+ (div .cse2 v_z_3) 1) 4294967296) .cse3) (< v_z_3 0) (not (= (mod |c_ULTIMATE.start_step_#t~ite34#1| v_z_3) 0)) (= (mod .cse2 v_z_3) 0))) (forall ((v_z_3 Int)) (let ((.cse4 (div |c_ULTIMATE.start_step_#t~ite34#1| v_z_3))) (or (< 65535 v_z_3) (< .cse1 (mod .cse4 4294967296)) (< .cse1 (mod (+ .cse4 1) 4294967296)) (< (mod (+ (div .cse2 v_z_3) 1) 4294967296) .cse3) (< v_z_3 0) (= (mod .cse2 v_z_3) 0)))) (or (forall ((v_z_3 Int)) (or (< 65535 v_z_3) (< .cse1 (mod (div |c_ULTIMATE.start_step_#t~ite34#1| v_z_3) 4294967296)) (< (mod (+ (div .cse2 v_z_3) 1) 4294967296) .cse3) (< v_z_3 0) (= (mod .cse2 v_z_3) 0))) .cse5))) (forall ((v_z_3 Int)) (let ((.cse7 (div |c_ULTIMATE.start_step_#t~ite34#1| v_z_3)) (.cse6 (div .cse2 v_z_3))) (or (< (mod .cse6 4294967296) .cse3) (< 65535 v_z_3) (< .cse1 (mod .cse7 4294967296)) (< .cse1 (mod (+ .cse7 1) 4294967296)) (< (mod (+ .cse6 1) 4294967296) .cse3) (< v_z_3 0)))) (forall ((v_z_3 Int)) (let ((.cse8 (div .cse2 v_z_3))) (or (< (mod .cse8 4294967296) .cse3) (< 65535 v_z_3) (< .cse1 (mod (div |c_ULTIMATE.start_step_#t~ite34#1| v_z_3) 4294967296)) (< (mod (+ .cse8 1) 4294967296) .cse3) (< v_z_3 0) (not (= (mod |c_ULTIMATE.start_step_#t~ite34#1| v_z_3) 0))))) (or (and (forall ((v_z_1 Int)) (let ((.cse9 (div .cse2 v_z_1))) (or (< (mod (+ .cse9 1) 4294967296) .cse3) (= (mod |c_ULTIMATE.start_step_#t~ite34#1| v_z_1) 0) (< v_z_1 0) (< 65535 v_z_1) (< (mod .cse9 4294967296) .cse3) (< .cse1 (mod (+ (div |c_ULTIMATE.start_step_#t~ite34#1| v_z_1) 1) 4294967296))))) (or (forall ((v_z_1 Int)) (or (= (mod |c_ULTIMATE.start_step_#t~ite34#1| v_z_1) 0) (< v_z_1 0) (< 65535 v_z_1) (< (mod (div .cse2 v_z_1) 4294967296) .cse3) (< .cse1 (mod (+ (div |c_ULTIMATE.start_step_#t~ite34#1| v_z_1) 1) 4294967296)))) .cse10) (or .cse0 (forall ((v_z_1 Int)) (or (= (mod .cse2 v_z_1) 0) (< (mod (+ (div .cse2 v_z_1) 1) 4294967296) .cse3) (= (mod |c_ULTIMATE.start_step_#t~ite34#1| v_z_1) 0) (< v_z_1 0) (< 65535 v_z_1) (< .cse1 (mod (+ (div |c_ULTIMATE.start_step_#t~ite34#1| v_z_1) 1) 4294967296))))) (forall ((v_z_1 Int)) (or (= (mod |c_ULTIMATE.start_step_#t~ite34#1| v_z_1) 0) (< v_z_1 0) (< 65535 v_z_1) (< (mod (div .cse2 v_z_1) 4294967296) .cse3) (< .cse1 (mod (+ (div |c_ULTIMATE.start_step_#t~ite34#1| v_z_1) 1) 4294967296)) (not (= (mod .cse2 v_z_1) 0))))) (< 0 (+ |c_ULTIMATE.start_step_#t~ite34#1| 1))) (or (forall ((v_z_3 Int)) (or (< (mod (div .cse2 v_z_3) 4294967296) .cse3) (< 65535 v_z_3) (< .cse1 (mod (div |c_ULTIMATE.start_step_#t~ite34#1| v_z_3) 4294967296)) (not (= (mod .cse2 v_z_3) 0)) (< v_z_3 0))) .cse5) (forall ((v_z_3 Int)) (or (< (mod (div .cse2 v_z_3) 4294967296) .cse3) (< 65535 v_z_3) (< .cse1 (mod (div |c_ULTIMATE.start_step_#t~ite34#1| v_z_3) 4294967296)) (not (= (mod .cse2 v_z_3) 0)) (< v_z_3 0) (not (= (mod |c_ULTIMATE.start_step_#t~ite34#1| v_z_3) 0)))) (or (forall ((v_z_3 Int)) (let ((.cse11 (div .cse2 v_z_3))) (or (< (mod .cse11 4294967296) .cse3) (< 65535 v_z_3) (< .cse1 (mod (div |c_ULTIMATE.start_step_#t~ite34#1| v_z_3) 4294967296)) (< (mod (+ .cse11 1) 4294967296) .cse3) (< v_z_3 0)))) .cse5) (forall ((v_z_3 Int)) (let ((.cse12 (div |c_ULTIMATE.start_step_#t~ite34#1| v_z_3))) (or (< (mod (div .cse2 v_z_3) 4294967296) .cse3) (< 65535 v_z_3) (< .cse1 (mod .cse12 4294967296)) (not (= (mod .cse2 v_z_3) 0)) (< .cse1 (mod (+ .cse12 1) 4294967296)) (< v_z_3 0)))) (or (and (forall ((v_z_3 Int)) (or (< (mod (div .cse2 v_z_3) 4294967296) .cse3) (< 65535 v_z_3) (< .cse1 (mod (div |c_ULTIMATE.start_step_#t~ite34#1| v_z_3) 4294967296)) (< v_z_3 0) (not (= (mod |c_ULTIMATE.start_step_#t~ite34#1| v_z_3) 0)))) (forall ((v_z_3 Int)) (let ((.cse13 (div |c_ULTIMATE.start_step_#t~ite34#1| v_z_3))) (or (< (mod (div .cse2 v_z_3) 4294967296) .cse3) (< 65535 v_z_3) (< .cse1 (mod .cse13 4294967296)) (< .cse1 (mod (+ .cse13 1) 4294967296)) (< v_z_3 0)))) (or .cse5 (forall ((v_z_3 Int)) (or (< (mod (div .cse2 v_z_3) 4294967296) .cse3) (< 65535 v_z_3) (< .cse1 (mod (div |c_ULTIMATE.start_step_#t~ite34#1| v_z_3) 4294967296)) (< v_z_3 0))))) .cse10)))) is different from true [2023-12-16 04:23:01,532 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:01,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:01,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608415763] [2023-12-16 04:23:01,533 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:23:01,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086459391] [2023-12-16 04:23:01,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086459391] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 04:23:01,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 04:23:01,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 16 [2023-12-16 04:23:01,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621571749] [2023-12-16 04:23:01,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:01,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 04:23:01,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:01,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 04:23:01,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=165, Unknown=3, NotChecked=26, Total=240 [2023-12-16 04:23:01,535 INFO L87 Difference]: Start difference. First operand 219 states and 315 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:05,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-12-16 04:23:09,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-12-16 04:23:14,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-12-16 04:23:19,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-12-16 04:23:21,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-12-16 04:23:25,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] Received shutdown request... [2023-12-16 04:23:50,261 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 [2023-12-16 04:23:50,261 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 04:23:50,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 04:23:50,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=46, Invalid=165, Unknown=3, NotChecked=26, Total=240 [2023-12-16 04:23:50,267 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 1 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 113 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:50,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 590 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 4 Unknown, 113 Unchecked, 23.9s Time] [2023-12-16 04:23:50,268 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 04:23:50,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-16 04:23:50,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:23:50,473 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (219states) and FLOYD_HOARE automaton (currently 3 states, 8 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 16 known predicates. [2023-12-16 04:23:50,476 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:50,477 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 04:23:50,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 04:23:50 BoogieIcfgContainer [2023-12-16 04:23:50,479 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 04:23:50,479 INFO L158 Benchmark]: Toolchain (without parser) took 73316.07ms. Allocated memory was 249.6MB in the beginning and 299.9MB in the end (delta: 50.3MB). Free memory was 198.3MB in the beginning and 251.3MB in the end (delta: -52.9MB). Peak memory consumption was 165.2MB. Max. memory is 8.0GB. [2023-12-16 04:23:50,479 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 180.4MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 04:23:50,480 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.27ms. Allocated memory is still 249.6MB. Free memory was 197.8MB in the beginning and 182.1MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 04:23:50,481 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.24ms. Allocated memory is still 249.6MB. Free memory was 182.1MB in the beginning and 177.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 04:23:50,481 INFO L158 Benchmark]: Boogie Preprocessor took 123.54ms. Allocated memory is still 249.6MB. Free memory was 177.9MB in the beginning and 172.7MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 04:23:50,481 INFO L158 Benchmark]: RCFGBuilder took 772.50ms. Allocated memory is still 249.6MB. Free memory was 172.7MB in the beginning and 204.4MB in the end (delta: -31.7MB). Peak memory consumption was 39.1MB. Max. memory is 8.0GB. [2023-12-16 04:23:50,481 INFO L158 Benchmark]: TraceAbstraction took 72031.37ms. Allocated memory was 249.6MB in the beginning and 299.9MB in the end (delta: 50.3MB). Free memory was 203.8MB in the beginning and 251.3MB in the end (delta: -47.4MB). Peak memory consumption was 169.1MB. Max. memory is 8.0GB. [2023-12-16 04:23:50,483 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 180.4MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 309.27ms. Allocated memory is still 249.6MB. Free memory was 197.8MB in the beginning and 182.1MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 74.24ms. Allocated memory is still 249.6MB. Free memory was 182.1MB in the beginning and 177.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 123.54ms. Allocated memory is still 249.6MB. Free memory was 177.9MB in the beginning and 172.7MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 772.50ms. Allocated memory is still 249.6MB. Free memory was 172.7MB in the beginning and 204.4MB in the end (delta: -31.7MB). Peak memory consumption was 39.1MB. Max. memory is 8.0GB. * TraceAbstraction took 72031.37ms. Allocated memory was 249.6MB in the beginning and 299.9MB in the end (delta: 50.3MB). Free memory was 203.8MB in the beginning and 251.3MB in the end (delta: -47.4MB). Peak memory consumption was 169.1MB. 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 constructing difference of abstraction (219states) and FLOYD_HOARE automaton (currently 3 states, 8 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 16 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 115 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 72.0s, OverallIterations: 7, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 49.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 512 SdHoareTripleChecker+Valid, 24.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 511 mSDsluCounter, 3629 SdHoareTripleChecker+Invalid, 24.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 113 IncrementalHoareTripleChecker+Unchecked, 2484 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 527 IncrementalHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 1145 mSDtfsCounter, 527 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1238 GetRequests, 1198 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 15.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=219occurred in iteration=6, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 82 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 18.5s InterpolantComputationTime, 1385 NumberOfCodeBlocks, 1385 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1226 ConstructedInterpolants, 2 QuantifiedInterpolants, 7018 SizeOfPredicates, 43 NumberOfNonLiveVariables, 4081 ConjunctsInSsa, 73 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 5112/5472 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