/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-collitem-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 20:13:25,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 20:13:25,939 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 20:13:25,979 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 20:13:25,980 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 20:13:25,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 20:13:25,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 20:13:25,987 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 20:13:25,988 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 20:13:25,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 20:13:25,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 20:13:25,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 20:13:25,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 20:13:25,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 20:13:25,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 20:13:25,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 20:13:25,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 20:13:25,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 20:13:25,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 20:13:25,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 20:13:25,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 20:13:25,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 20:13:25,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 20:13:25,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 20:13:26,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-27 20:13:26,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-27 20:13:26,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-27 20:13:26,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-27 20:13:26,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-27 20:13:26,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-27 20:13:26,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-27 20:13:26,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-27 20:13:26,003 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-27 20:13:26,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-27 20:13:26,004 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-27 20:13:26,004 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-27 20:13:26,005 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-27 20:13:26,005 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-27 20:13:26,005 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 20:13:26,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 20:13:26,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 20:13:26,013 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-27 20:13:26,035 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 20:13:26,035 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 20:13:26,036 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 20:13:26,036 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 20:13:26,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 20:13:26,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 20:13:26,037 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 20:13:26,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 20:13:26,037 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 20:13:26,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 20:13:26,037 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 20:13:26,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 20:13:26,037 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 20:13:26,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 20:13:26,037 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 20:13:26,038 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 20:13:26,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 20:13:26,038 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 20:13:26,038 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 20:13:26,038 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 20:13:26,038 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 20:13:26,038 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 20:13:26,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 20:13:26,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 20:13:26,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 20:13:26,039 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 20:13:26,039 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 20:13:26,039 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 20:13:26,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 20:13:26,039 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 20:13:26,039 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 20:13:26,039 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 20:13:26,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 20:13:26,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 20:13:26,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 20:13:26,261 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 20:13:26,261 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 20:13:26,262 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-collitem-trans.wvr.c [2023-01-27 20:13:27,286 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 20:13:27,418 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 20:13:27,418 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-trans.wvr.c [2023-01-27 20:13:27,423 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68750c52b/ace6c1a3b3784b118a23efb723d13dd0/FLAG996885ae5 [2023-01-27 20:13:27,433 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68750c52b/ace6c1a3b3784b118a23efb723d13dd0 [2023-01-27 20:13:27,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 20:13:27,436 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 20:13:27,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 20:13:27,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 20:13:27,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 20:13:27,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 08:13:27" (1/1) ... [2023-01-27 20:13:27,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a2b09cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:13:27, skipping insertion in model container [2023-01-27 20:13:27,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 08:13:27" (1/1) ... [2023-01-27 20:13:27,446 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 20:13:27,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 20:13:27,625 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-trans.wvr.c[3481,3494] [2023-01-27 20:13:27,630 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 20:13:27,647 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 20:13:27,665 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-trans.wvr.c[3481,3494] [2023-01-27 20:13:27,667 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 20:13:27,678 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 20:13:27,679 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 20:13:27,685 INFO L208 MainTranslator]: Completed translation [2023-01-27 20:13:27,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:13:27 WrapperNode [2023-01-27 20:13:27,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 20:13:27,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 20:13:27,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 20:13:27,687 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 20:13:27,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:13:27" (1/1) ... [2023-01-27 20:13:27,702 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:13:27" (1/1) ... [2023-01-27 20:13:27,730 INFO L138 Inliner]: procedures = 23, calls = 45, calls flagged for inlining = 17, calls inlined = 39, statements flattened = 361 [2023-01-27 20:13:27,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 20:13:27,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 20:13:27,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 20:13:27,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 20:13:27,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:13:27" (1/1) ... [2023-01-27 20:13:27,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:13:27" (1/1) ... [2023-01-27 20:13:27,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:13:27" (1/1) ... [2023-01-27 20:13:27,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:13:27" (1/1) ... [2023-01-27 20:13:27,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:13:27" (1/1) ... [2023-01-27 20:13:27,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:13:27" (1/1) ... [2023-01-27 20:13:27,757 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:13:27" (1/1) ... [2023-01-27 20:13:27,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:13:27" (1/1) ... [2023-01-27 20:13:27,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 20:13:27,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 20:13:27,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 20:13:27,762 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 20:13:27,770 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:13:27" (1/1) ... [2023-01-27 20:13:27,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 20:13:27,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 20:13:27,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-27 20:13:27,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-27 20:13:27,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 20:13:27,832 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-27 20:13:27,832 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-27 20:13:27,832 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-27 20:13:27,832 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-27 20:13:27,832 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-01-27 20:13:27,833 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-01-27 20:13:27,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 20:13:27,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 20:13:27,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 20:13:27,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-27 20:13:27,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-27 20:13:27,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 20:13:27,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 20:13:27,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 20:13:27,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 20:13:27,835 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 20:13:27,964 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 20:13:27,966 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 20:13:28,435 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 20:13:28,775 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 20:13:28,775 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-27 20:13:28,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 08:13:28 BoogieIcfgContainer [2023-01-27 20:13:28,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 20:13:28,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 20:13:28,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 20:13:28,781 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 20:13:28,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 08:13:27" (1/3) ... [2023-01-27 20:13:28,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9fb6d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 08:13:28, skipping insertion in model container [2023-01-27 20:13:28,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:13:27" (2/3) ... [2023-01-27 20:13:28,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9fb6d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 08:13:28, skipping insertion in model container [2023-01-27 20:13:28,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 08:13:28" (3/3) ... [2023-01-27 20:13:28,783 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-trans.wvr.c [2023-01-27 20:13:28,807 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 20:13:28,807 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-27 20:13:28,807 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 20:13:28,869 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-01-27 20:13:28,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 132 transitions, 288 flow [2023-01-27 20:13:28,959 INFO L130 PetriNetUnfolder]: 1/129 cut-off events. [2023-01-27 20:13:28,960 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-27 20:13:28,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 129 events. 1/129 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 20 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2023-01-27 20:13:28,963 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 132 transitions, 288 flow [2023-01-27 20:13:28,969 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 119 transitions, 256 flow [2023-01-27 20:13:28,972 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 20:13:28,991 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 128 places, 119 transitions, 256 flow [2023-01-27 20:13:28,993 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 128 places, 119 transitions, 256 flow [2023-01-27 20:13:28,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 119 transitions, 256 flow [2023-01-27 20:13:29,011 INFO L130 PetriNetUnfolder]: 1/119 cut-off events. [2023-01-27 20:13:29,011 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-27 20:13:29,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 119 events. 1/119 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2023-01-27 20:13:29,021 INFO L119 LiptonReduction]: Number of co-enabled transitions 270 [2023-01-27 20:13:36,917 INFO L134 LiptonReduction]: Checked pairs total: 460 [2023-01-27 20:13:36,918 INFO L136 LiptonReduction]: Total number of compositions: 106 [2023-01-27 20:13:36,927 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 20:13:36,931 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@7fe43b40, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 20:13:36,931 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-01-27 20:13:36,936 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2023-01-27 20:13:36,936 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-27 20:13:36,936 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 20:13:36,937 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 20:13:36,937 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 20:13:36,940 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 20:13:36,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1335539198, now seen corresponding path program 1 times [2023-01-27 20:13:36,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 20:13:36,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933327219] [2023-01-27 20:13:36,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 20:13:36,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 20:13:37,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 20:13:39,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 20:13:39,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 20:13:39,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933327219] [2023-01-27 20:13:39,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933327219] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 20:13:39,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 20:13:39,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 20:13:39,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167475290] [2023-01-27 20:13:39,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 20:13:39,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 20:13:39,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 20:13:39,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 20:13:39,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-27 20:13:39,601 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 238 [2023-01-27 20:13:39,603 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 50 flow. Second operand has 5 states, 5 states have (on average 96.2) internal successors, (481), 5 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:39,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 20:13:39,603 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 238 [2023-01-27 20:13:39,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 20:13:39,868 INFO L130 PetriNetUnfolder]: 38/100 cut-off events. [2023-01-27 20:13:39,869 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2023-01-27 20:13:39,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 100 events. 38/100 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 282 event pairs, 2 based on Foata normal form. 1/101 useless extension candidates. Maximal degree in co-relation 169. Up to 38 conditions per place. [2023-01-27 20:13:39,871 INFO L137 encePairwiseOnDemand]: 233/238 looper letters, 32 selfloop transitions, 6 changer transitions 7/45 dead transitions. [2023-01-27 20:13:39,871 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 45 transitions, 228 flow [2023-01-27 20:13:39,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 20:13:39,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 20:13:39,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 604 transitions. [2023-01-27 20:13:39,892 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42296918767507 [2023-01-27 20:13:39,893 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 604 transitions. [2023-01-27 20:13:39,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 604 transitions. [2023-01-27 20:13:39,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 20:13:39,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 604 transitions. [2023-01-27 20:13:39,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 100.66666666666667) internal successors, (604), 6 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:39,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 238.0) internal successors, (1666), 7 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:39,904 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 238.0) internal successors, (1666), 7 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:39,906 INFO L175 Difference]: Start difference. First operand has 26 places, 16 transitions, 50 flow. Second operand 6 states and 604 transitions. [2023-01-27 20:13:39,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 45 transitions, 228 flow [2023-01-27 20:13:39,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 45 transitions, 196 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-01-27 20:13:39,916 INFO L231 Difference]: Finished difference. Result has 28 places, 20 transitions, 71 flow [2023-01-27 20:13:39,918 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=71, PETRI_PLACES=28, PETRI_TRANSITIONS=20} [2023-01-27 20:13:39,920 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 2 predicate places. [2023-01-27 20:13:39,920 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 20 transitions, 71 flow [2023-01-27 20:13:39,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 96.2) internal successors, (481), 5 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:39,920 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 20:13:39,921 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 20:13:39,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 20:13:39,921 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 20:13:39,921 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 20:13:39,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1392752308, now seen corresponding path program 2 times [2023-01-27 20:13:39,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 20:13:39,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143458498] [2023-01-27 20:13:39,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 20:13:39,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 20:13:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 20:13:41,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 20:13:41,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 20:13:41,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143458498] [2023-01-27 20:13:41,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143458498] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 20:13:41,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 20:13:41,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 20:13:41,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187086137] [2023-01-27 20:13:41,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 20:13:41,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 20:13:41,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 20:13:41,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 20:13:41,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-27 20:13:41,484 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 238 [2023-01-27 20:13:41,484 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 20 transitions, 71 flow. Second operand has 5 states, 5 states have (on average 96.2) internal successors, (481), 5 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:41,485 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 20:13:41,485 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 238 [2023-01-27 20:13:41,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 20:13:41,712 INFO L130 PetriNetUnfolder]: 39/119 cut-off events. [2023-01-27 20:13:41,712 INFO L131 PetriNetUnfolder]: For 62/62 co-relation queries the response was YES. [2023-01-27 20:13:41,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332 conditions, 119 events. 39/119 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 425 event pairs, 9 based on Foata normal form. 1/120 useless extension candidates. Maximal degree in co-relation 317. Up to 60 conditions per place. [2023-01-27 20:13:41,714 INFO L137 encePairwiseOnDemand]: 233/238 looper letters, 28 selfloop transitions, 9 changer transitions 5/42 dead transitions. [2023-01-27 20:13:41,714 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 42 transitions, 219 flow [2023-01-27 20:13:41,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 20:13:41,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 20:13:41,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 505 transitions. [2023-01-27 20:13:41,717 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42436974789915966 [2023-01-27 20:13:41,717 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 505 transitions. [2023-01-27 20:13:41,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 505 transitions. [2023-01-27 20:13:41,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 20:13:41,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 505 transitions. [2023-01-27 20:13:41,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:41,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 238.0) internal successors, (1428), 6 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:41,724 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 238.0) internal successors, (1428), 6 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:41,724 INFO L175 Difference]: Start difference. First operand has 28 places, 20 transitions, 71 flow. Second operand 5 states and 505 transitions. [2023-01-27 20:13:41,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 42 transitions, 219 flow [2023-01-27 20:13:41,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 42 transitions, 215 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-01-27 20:13:41,726 INFO L231 Difference]: Finished difference. Result has 32 places, 23 transitions, 118 flow [2023-01-27 20:13:41,727 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=118, PETRI_PLACES=32, PETRI_TRANSITIONS=23} [2023-01-27 20:13:41,728 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 6 predicate places. [2023-01-27 20:13:41,728 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 118 flow [2023-01-27 20:13:41,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 96.2) internal successors, (481), 5 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:41,729 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 20:13:41,729 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 20:13:41,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 20:13:41,729 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 20:13:41,731 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 20:13:41,731 INFO L85 PathProgramCache]: Analyzing trace with hash -159030358, now seen corresponding path program 3 times [2023-01-27 20:13:41,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 20:13:41,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291021929] [2023-01-27 20:13:41,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 20:13:41,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 20:13:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 20:13:43,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 20:13:43,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 20:13:43,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291021929] [2023-01-27 20:13:43,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291021929] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 20:13:43,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 20:13:43,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 20:13:43,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468420565] [2023-01-27 20:13:43,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 20:13:43,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 20:13:43,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 20:13:43,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 20:13:43,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-27 20:13:43,390 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 238 [2023-01-27 20:13:43,391 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 118 flow. Second operand has 5 states, 5 states have (on average 96.2) internal successors, (481), 5 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:43,391 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 20:13:43,391 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 238 [2023-01-27 20:13:43,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 20:13:43,732 INFO L130 PetriNetUnfolder]: 39/118 cut-off events. [2023-01-27 20:13:43,732 INFO L131 PetriNetUnfolder]: For 173/173 co-relation queries the response was YES. [2023-01-27 20:13:43,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 118 events. 39/118 cut-off events. For 173/173 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 432 event pairs, 2 based on Foata normal form. 1/119 useless extension candidates. Maximal degree in co-relation 220. Up to 53 conditions per place. [2023-01-27 20:13:43,734 INFO L137 encePairwiseOnDemand]: 233/238 looper letters, 27 selfloop transitions, 7 changer transitions 12/46 dead transitions. [2023-01-27 20:13:43,734 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 46 transitions, 280 flow [2023-01-27 20:13:43,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 20:13:43,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 20:13:43,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 602 transitions. [2023-01-27 20:13:43,736 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4215686274509804 [2023-01-27 20:13:43,736 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 602 transitions. [2023-01-27 20:13:43,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 602 transitions. [2023-01-27 20:13:43,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 20:13:43,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 602 transitions. [2023-01-27 20:13:43,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 100.33333333333333) internal successors, (602), 6 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:43,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 238.0) internal successors, (1666), 7 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:43,740 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 238.0) internal successors, (1666), 7 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:43,740 INFO L175 Difference]: Start difference. First operand has 32 places, 23 transitions, 118 flow. Second operand 6 states and 602 transitions. [2023-01-27 20:13:43,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 46 transitions, 280 flow [2023-01-27 20:13:43,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 46 transitions, 273 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-01-27 20:13:43,745 INFO L231 Difference]: Finished difference. Result has 38 places, 21 transitions, 120 flow [2023-01-27 20:13:43,745 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=120, PETRI_PLACES=38, PETRI_TRANSITIONS=21} [2023-01-27 20:13:43,746 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 12 predicate places. [2023-01-27 20:13:43,748 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 21 transitions, 120 flow [2023-01-27 20:13:43,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 96.2) internal successors, (481), 5 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:43,749 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 20:13:43,749 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 20:13:43,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-27 20:13:43,749 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 20:13:43,749 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 20:13:43,749 INFO L85 PathProgramCache]: Analyzing trace with hash 994545194, now seen corresponding path program 4 times [2023-01-27 20:13:43,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 20:13:43,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233138169] [2023-01-27 20:13:43,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 20:13:43,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 20:13:43,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 20:13:45,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 20:13:45,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 20:13:45,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233138169] [2023-01-27 20:13:45,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233138169] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 20:13:45,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 20:13:45,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 20:13:45,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980499084] [2023-01-27 20:13:45,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 20:13:45,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 20:13:45,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 20:13:45,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 20:13:45,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-27 20:13:45,244 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 238 [2023-01-27 20:13:45,245 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 21 transitions, 120 flow. Second operand has 5 states, 5 states have (on average 96.2) internal successors, (481), 5 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:45,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 20:13:45,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 238 [2023-01-27 20:13:45,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 20:13:45,449 INFO L130 PetriNetUnfolder]: 18/62 cut-off events. [2023-01-27 20:13:45,449 INFO L131 PetriNetUnfolder]: For 118/118 co-relation queries the response was YES. [2023-01-27 20:13:45,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 62 events. 18/62 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 150 event pairs, 0 based on Foata normal form. 1/63 useless extension candidates. Maximal degree in co-relation 234. Up to 22 conditions per place. [2023-01-27 20:13:45,450 INFO L137 encePairwiseOnDemand]: 233/238 looper letters, 18 selfloop transitions, 6 changer transitions 13/37 dead transitions. [2023-01-27 20:13:45,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 37 transitions, 241 flow [2023-01-27 20:13:45,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 20:13:45,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 20:13:45,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 594 transitions. [2023-01-27 20:13:45,452 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41596638655462187 [2023-01-27 20:13:45,452 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 594 transitions. [2023-01-27 20:13:45,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 594 transitions. [2023-01-27 20:13:45,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 20:13:45,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 594 transitions. [2023-01-27 20:13:45,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:45,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 238.0) internal successors, (1666), 7 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:45,456 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 238.0) internal successors, (1666), 7 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:45,456 INFO L175 Difference]: Start difference. First operand has 38 places, 21 transitions, 120 flow. Second operand 6 states and 594 transitions. [2023-01-27 20:13:45,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 37 transitions, 241 flow [2023-01-27 20:13:45,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 37 transitions, 211 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-01-27 20:13:45,458 INFO L231 Difference]: Finished difference. Result has 37 places, 19 transitions, 93 flow [2023-01-27 20:13:45,458 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=93, PETRI_PLACES=37, PETRI_TRANSITIONS=19} [2023-01-27 20:13:45,459 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 11 predicate places. [2023-01-27 20:13:45,459 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 19 transitions, 93 flow [2023-01-27 20:13:45,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 96.2) internal successors, (481), 5 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:45,460 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 20:13:45,460 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 20:13:45,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-27 20:13:45,460 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 20:13:45,460 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 20:13:45,460 INFO L85 PathProgramCache]: Analyzing trace with hash 196870180, now seen corresponding path program 5 times [2023-01-27 20:13:45,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 20:13:45,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968327945] [2023-01-27 20:13:45,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 20:13:45,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 20:13:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 20:13:47,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 20:13:47,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 20:13:47,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968327945] [2023-01-27 20:13:47,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968327945] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 20:13:47,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 20:13:47,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 20:13:47,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377440184] [2023-01-27 20:13:47,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 20:13:47,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 20:13:47,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 20:13:47,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 20:13:47,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-27 20:13:47,148 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 238 [2023-01-27 20:13:47,149 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 19 transitions, 93 flow. Second operand has 5 states, 5 states have (on average 96.2) internal successors, (481), 5 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:47,149 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 20:13:47,149 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 238 [2023-01-27 20:13:47,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 20:13:47,381 INFO L130 PetriNetUnfolder]: 8/40 cut-off events. [2023-01-27 20:13:47,381 INFO L131 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2023-01-27 20:13:47,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 40 events. 8/40 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 58 event pairs, 0 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 139. Up to 19 conditions per place. [2023-01-27 20:13:47,382 INFO L137 encePairwiseOnDemand]: 233/238 looper letters, 15 selfloop transitions, 3 changer transitions 12/30 dead transitions. [2023-01-27 20:13:47,382 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 30 transitions, 179 flow [2023-01-27 20:13:47,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 20:13:47,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 20:13:47,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 589 transitions. [2023-01-27 20:13:47,383 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41246498599439774 [2023-01-27 20:13:47,383 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 589 transitions. [2023-01-27 20:13:47,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 589 transitions. [2023-01-27 20:13:47,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 20:13:47,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 589 transitions. [2023-01-27 20:13:47,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 98.16666666666667) internal successors, (589), 6 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:47,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 238.0) internal successors, (1666), 7 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:47,387 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 238.0) internal successors, (1666), 7 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:47,387 INFO L175 Difference]: Start difference. First operand has 37 places, 19 transitions, 93 flow. Second operand 6 states and 589 transitions. [2023-01-27 20:13:47,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 30 transitions, 179 flow [2023-01-27 20:13:47,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 30 transitions, 153 flow, removed 2 selfloop flow, removed 7 redundant places. [2023-01-27 20:13:47,388 INFO L231 Difference]: Finished difference. Result has 34 places, 16 transitions, 58 flow [2023-01-27 20:13:47,388 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=58, PETRI_PLACES=34, PETRI_TRANSITIONS=16} [2023-01-27 20:13:47,388 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2023-01-27 20:13:47,388 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 16 transitions, 58 flow [2023-01-27 20:13:47,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 96.2) internal successors, (481), 5 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:47,389 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 20:13:47,389 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 20:13:47,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-27 20:13:47,389 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 20:13:47,389 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 20:13:47,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1119287124, now seen corresponding path program 6 times [2023-01-27 20:13:47,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 20:13:47,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422758722] [2023-01-27 20:13:47,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 20:13:47,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 20:13:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 20:13:48,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 20:13:48,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 20:13:48,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422758722] [2023-01-27 20:13:48,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422758722] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 20:13:48,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 20:13:48,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 20:13:48,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447653548] [2023-01-27 20:13:48,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 20:13:48,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 20:13:48,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 20:13:48,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 20:13:48,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-27 20:13:48,761 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 238 [2023-01-27 20:13:48,761 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 16 transitions, 58 flow. Second operand has 5 states, 5 states have (on average 96.2) internal successors, (481), 5 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:48,761 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 20:13:48,761 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 238 [2023-01-27 20:13:48,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 20:13:48,877 INFO L130 PetriNetUnfolder]: 3/21 cut-off events. [2023-01-27 20:13:48,878 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-01-27 20:13:48,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 21 events. 3/21 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 63. Up to 8 conditions per place. [2023-01-27 20:13:48,878 INFO L137 encePairwiseOnDemand]: 233/238 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2023-01-27 20:13:48,878 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 18 transitions, 96 flow [2023-01-27 20:13:48,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 20:13:48,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 20:13:48,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 577 transitions. [2023-01-27 20:13:48,879 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40406162464985995 [2023-01-27 20:13:48,880 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 577 transitions. [2023-01-27 20:13:48,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 577 transitions. [2023-01-27 20:13:48,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 20:13:48,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 577 transitions. [2023-01-27 20:13:48,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 96.16666666666667) internal successors, (577), 6 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:48,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 238.0) internal successors, (1666), 7 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:48,882 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 238.0) internal successors, (1666), 7 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:48,883 INFO L175 Difference]: Start difference. First operand has 34 places, 16 transitions, 58 flow. Second operand 6 states and 577 transitions. [2023-01-27 20:13:48,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 18 transitions, 96 flow [2023-01-27 20:13:48,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 18 transitions, 82 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-01-27 20:13:48,883 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2023-01-27 20:13:48,883 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2023-01-27 20:13:48,884 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2023-01-27 20:13:48,884 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2023-01-27 20:13:48,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 96.2) internal successors, (481), 5 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 20:13:48,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-01-27 20:13:48,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-01-27 20:13:48,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-01-27 20:13:48,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-01-27 20:13:48,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-27 20:13:48,886 INFO L445 BasicCegarLoop]: Path program histogram: [6] [2023-01-27 20:13:48,888 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 20:13:48,888 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 20:13:48,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 08:13:48 BasicIcfg [2023-01-27 20:13:48,894 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 20:13:48,895 INFO L158 Benchmark]: Toolchain (without parser) took 21458.69ms. Allocated memory was 335.5MB in the beginning and 906.0MB in the end (delta: 570.4MB). Free memory was 292.9MB in the beginning and 714.1MB in the end (delta: -421.2MB). Peak memory consumption was 151.3MB. Max. memory is 16.0GB. [2023-01-27 20:13:48,896 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 255.9MB. Free memory is still 213.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 20:13:48,898 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.02ms. Allocated memory is still 335.5MB. Free memory was 292.9MB in the beginning and 281.3MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-27 20:13:48,898 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.05ms. Allocated memory is still 335.5MB. Free memory was 280.9MB in the beginning and 278.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 20:13:48,898 INFO L158 Benchmark]: Boogie Preprocessor took 30.77ms. Allocated memory is still 335.5MB. Free memory was 278.2MB in the beginning and 276.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 20:13:48,898 INFO L158 Benchmark]: RCFGBuilder took 1015.07ms. Allocated memory is still 335.5MB. Free memory was 276.1MB in the beginning and 210.4MB in the end (delta: 65.7MB). Peak memory consumption was 67.8MB. Max. memory is 16.0GB. [2023-01-27 20:13:48,898 INFO L158 Benchmark]: TraceAbstraction took 20115.36ms. Allocated memory was 335.5MB in the beginning and 906.0MB in the end (delta: 570.4MB). Free memory was 209.5MB in the beginning and 714.1MB in the end (delta: -504.6MB). Peak memory consumption was 64.7MB. Max. memory is 16.0GB. [2023-01-27 20:13:48,900 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 255.9MB. Free memory is still 213.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 248.02ms. Allocated memory is still 335.5MB. Free memory was 292.9MB in the beginning and 281.3MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.05ms. Allocated memory is still 335.5MB. Free memory was 280.9MB in the beginning and 278.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 30.77ms. Allocated memory is still 335.5MB. Free memory was 278.2MB in the beginning and 276.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 1015.07ms. Allocated memory is still 335.5MB. Free memory was 276.1MB in the beginning and 210.4MB in the end (delta: 65.7MB). Peak memory consumption was 67.8MB. Max. memory is 16.0GB. * TraceAbstraction took 20115.36ms. Allocated memory was 335.5MB in the beginning and 906.0MB in the end (delta: 570.4MB). Free memory was 209.5MB in the beginning and 714.1MB in the end (delta: -504.6MB). Peak memory consumption was 64.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.9s, 128 PlacesBefore, 26 PlacesAfterwards, 119 TransitionsBefore, 16 TransitionsAfterwards, 270 CoEnabledTransitionPairs, 8 FixpointIterations, 84 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 106 TotalNumberOfCompositions, 460 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 460, independent: 460, independent conditional: 0, independent unconditional: 460, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 167, independent: 167, independent conditional: 0, independent unconditional: 167, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 460, independent: 293, independent conditional: 0, independent unconditional: 293, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 167, unknown conditional: 0, unknown unconditional: 167] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 100]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 147 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 20.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 185 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 185 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 408 IncrementalHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 0 mSDtfsCounter, 408 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=3, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 9.5s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 2358 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-01-27 20:13:48,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...