/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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/lamport.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-18 22:07:36,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 22:07:36,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 22:07:36,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 22:07:36,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 22:07:36,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 22:07:36,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 22:07:36,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 22:07:36,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 22:07:36,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 22:07:36,935 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 22:07:36,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 22:07:36,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 22:07:36,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 22:07:36,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 22:07:36,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 22:07:36,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 22:07:36,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 22:07:36,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 22:07:36,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 22:07:36,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 22:07:36,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 22:07:36,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 22:07:36,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 22:07:36,953 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-18 22:07:36,953 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-18 22:07:36,953 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-18 22:07:36,954 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-18 22:07:36,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-18 22:07:36,955 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-18 22:07:36,955 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 22:07:36,956 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 22:07:36,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 22:07:36,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 22:07:36,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 22:07:36,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 22:07:36,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 22:07:36,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 22:07:36,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 22:07:36,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 22:07:36,960 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 22:07:36,964 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-NoLbe.epf [2022-01-18 22:07:36,995 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 22:07:36,995 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 22:07:36,996 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 22:07:36,996 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 22:07:36,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 22:07:36,996 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 22:07:36,997 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 22:07:36,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 22:07:36,997 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 22:07:36,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 22:07:36,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 22:07:36,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 22:07:36,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 22:07:36,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 22:07:36,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 22:07:36,998 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 22:07:36,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 22:07:36,999 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 22:07:36,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 22:07:36,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 22:07:36,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 22:07:36,999 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 22:07:36,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 22:07:37,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 22:07:37,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 22:07:37,000 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 22:07:37,000 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 22:07:37,000 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 22:07:37,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 22:07:37,000 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 22:07:37,000 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-18 22:07:37,001 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 22:07:37,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 22:07:37,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 22:07:37,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 22:07:37,230 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 22:07:37,230 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 22:07:37,231 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/lamport.i [2022-01-18 22:07:37,286 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcef20fef/2f4bdf18f2a8465eb50ff391d3643753/FLAGdb9258893 [2022-01-18 22:07:37,747 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 22:07:37,748 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i [2022-01-18 22:07:37,767 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcef20fef/2f4bdf18f2a8465eb50ff391d3643753/FLAGdb9258893 [2022-01-18 22:07:37,776 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcef20fef/2f4bdf18f2a8465eb50ff391d3643753 [2022-01-18 22:07:37,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 22:07:37,779 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 22:07:37,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 22:07:37,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 22:07:37,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 22:07:37,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 10:07:37" (1/1) ... [2022-01-18 22:07:37,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@374ed030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:07:37, skipping insertion in model container [2022-01-18 22:07:37,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 10:07:37" (1/1) ... [2022-01-18 22:07:37,789 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 22:07:37,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 22:07:37,992 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-01-18 22:07:38,089 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[32156,32169] [2022-01-18 22:07:38,096 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[34083,34096] [2022-01-18 22:07:38,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 22:07:38,105 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 22:07:38,129 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-01-18 22:07:38,157 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[32156,32169] [2022-01-18 22:07:38,161 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[34083,34096] [2022-01-18 22:07:38,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 22:07:38,206 INFO L208 MainTranslator]: Completed translation [2022-01-18 22:07:38,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:07:38 WrapperNode [2022-01-18 22:07:38,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 22:07:38,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 22:07:38,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 22:07:38,208 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 22:07:38,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:07:38" (1/1) ... [2022-01-18 22:07:38,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:07:38" (1/1) ... [2022-01-18 22:07:38,253 INFO L137 Inliner]: procedures = 171, calls = 83, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2022-01-18 22:07:38,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 22:07:38,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 22:07:38,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 22:07:38,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 22:07:38,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:07:38" (1/1) ... [2022-01-18 22:07:38,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:07:38" (1/1) ... [2022-01-18 22:07:38,263 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:07:38" (1/1) ... [2022-01-18 22:07:38,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:07:38" (1/1) ... [2022-01-18 22:07:38,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:07:38" (1/1) ... [2022-01-18 22:07:38,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:07:38" (1/1) ... [2022-01-18 22:07:38,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:07:38" (1/1) ... [2022-01-18 22:07:38,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 22:07:38,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 22:07:38,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 22:07:38,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 22:07:38,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:07:38" (1/1) ... [2022-01-18 22:07:38,291 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 22:07:38,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 22:07:38,311 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) [2022-01-18 22:07:38,323 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 [2022-01-18 22:07:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 22:07:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-01-18 22:07:38,345 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-01-18 22:07:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-01-18 22:07:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-01-18 22:07:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 22:07:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 22:07:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 22:07:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 22:07:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 22:07:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 22:07:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 22:07:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 22:07:38,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 22:07:38,348 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 22:07:38,486 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 22:07:38,487 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 22:07:38,638 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 22:07:38,644 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 22:07:38,644 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2022-01-18 22:07:38,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 10:07:38 BoogieIcfgContainer [2022-01-18 22:07:38,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 22:07:38,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 22:07:38,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 22:07:38,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 22:07:38,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 10:07:37" (1/3) ... [2022-01-18 22:07:38,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@154c2d3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 10:07:38, skipping insertion in model container [2022-01-18 22:07:38,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:07:38" (2/3) ... [2022-01-18 22:07:38,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@154c2d3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 10:07:38, skipping insertion in model container [2022-01-18 22:07:38,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 10:07:38" (3/3) ... [2022-01-18 22:07:38,652 INFO L111 eAbstractionObserver]: Analyzing ICFG lamport.i [2022-01-18 22:07:38,656 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 22:07:38,656 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-18 22:07:38,656 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 22:07:38,681 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,682 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,682 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,682 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,682 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,682 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,682 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,682 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,683 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,683 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,684 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,684 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,684 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,684 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,684 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,684 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,685 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,685 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,685 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,685 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,685 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,686 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,686 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,686 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,686 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,686 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,686 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,687 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,687 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,687 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,687 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,687 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,688 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,688 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,688 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,688 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,688 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,689 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,689 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,689 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,689 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,689 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,689 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,690 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,690 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,690 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,690 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,690 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,690 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,690 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,690 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,691 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,691 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,691 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,691 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,692 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,692 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,692 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,692 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,692 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,692 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,692 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,693 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,693 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,693 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,693 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,694 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,694 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,694 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,694 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,694 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,694 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,694 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,695 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,695 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,695 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,695 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,695 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,695 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,695 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,696 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,696 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,696 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,696 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,696 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,696 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,696 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,697 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,697 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,697 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,697 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,697 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,698 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,698 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,698 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,698 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,698 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,698 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,699 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,699 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,699 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,699 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,699 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,699 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,699 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,700 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,700 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,700 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,702 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,702 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,703 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,703 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,703 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,703 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,703 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,705 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,706 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,706 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,706 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,706 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,706 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,707 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:38,710 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-18 22:07:38,746 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 22:07:38,751 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 22:07:38,752 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-18 22:07:38,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 116 places, 133 transitions, 282 flow [2022-01-18 22:07:38,797 INFO L129 PetriNetUnfolder]: 24/131 cut-off events. [2022-01-18 22:07:38,797 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-18 22:07:38,801 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 131 events. 24/131 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 255 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 97. Up to 5 conditions per place. [2022-01-18 22:07:38,801 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 133 transitions, 282 flow [2022-01-18 22:07:38,806 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 121 transitions, 251 flow [2022-01-18 22:07:38,813 INFO L129 PetriNetUnfolder]: 2/39 cut-off events. [2022-01-18 22:07:38,813 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-18 22:07:38,813 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:07:38,814 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:07:38,814 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2022-01-18 22:07:38,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:07:38,818 INFO L85 PathProgramCache]: Analyzing trace with hash 513087575, now seen corresponding path program 1 times [2022-01-18 22:07:38,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:07:38,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152088420] [2022-01-18 22:07:38,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:07:38,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:07:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:07:38,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:07:38,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:07:38,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152088420] [2022-01-18 22:07:38,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152088420] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:07:38,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:07:38,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 22:07:38,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816895923] [2022-01-18 22:07:38,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:07:38,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 22:07:38,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:07:39,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 22:07:39,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 22:07:39,024 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 133 [2022-01-18 22:07:39,027 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 121 transitions, 251 flow. Second operand has 2 states, 2 states have (on average 118.0) internal successors, (236), 2 states have internal predecessors, (236), 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) [2022-01-18 22:07:39,027 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:07:39,027 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 133 [2022-01-18 22:07:39,028 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:07:39,057 INFO L129 PetriNetUnfolder]: 12/109 cut-off events. [2022-01-18 22:07:39,057 INFO L130 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-01-18 22:07:39,058 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 109 events. 12/109 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 199 event pairs, 0 based on Foata normal form. 20/115 useless extension candidates. Maximal degree in co-relation 86. Up to 4 conditions per place. [2022-01-18 22:07:39,060 INFO L132 encePairwiseOnDemand]: 121/133 looper letters, 3 selfloop transitions, 0 changer transitions 0/109 dead transitions. [2022-01-18 22:07:39,060 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 109 transitions, 233 flow [2022-01-18 22:07:39,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 22:07:39,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-18 22:07:39,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 249 transitions. [2022-01-18 22:07:39,072 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9360902255639098 [2022-01-18 22:07:39,073 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 249 transitions. [2022-01-18 22:07:39,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 249 transitions. [2022-01-18 22:07:39,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:07:39,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 249 transitions. [2022-01-18 22:07:39,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 124.5) internal successors, (249), 2 states have internal predecessors, (249), 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) [2022-01-18 22:07:39,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 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) [2022-01-18 22:07:39,092 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 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) [2022-01-18 22:07:39,094 INFO L186 Difference]: Start difference. First operand has 104 places, 121 transitions, 251 flow. Second operand 2 states and 249 transitions. [2022-01-18 22:07:39,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 109 transitions, 233 flow [2022-01-18 22:07:39,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 109 transitions, 228 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-01-18 22:07:39,101 INFO L242 Difference]: Finished difference. Result has 102 places, 109 transitions, 222 flow [2022-01-18 22:07:39,102 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=222, PETRI_PLACES=102, PETRI_TRANSITIONS=109} [2022-01-18 22:07:39,106 INFO L334 CegarLoopForPetriNet]: 104 programPoint places, -2 predicate places. [2022-01-18 22:07:39,106 INFO L470 AbstractCegarLoop]: Abstraction has has 102 places, 109 transitions, 222 flow [2022-01-18 22:07:39,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 118.0) internal successors, (236), 2 states have internal predecessors, (236), 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) [2022-01-18 22:07:39,106 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:07:39,106 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:07:39,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 22:07:39,107 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2022-01-18 22:07:39,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:07:39,108 INFO L85 PathProgramCache]: Analyzing trace with hash 659391114, now seen corresponding path program 1 times [2022-01-18 22:07:39,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:07:39,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017917777] [2022-01-18 22:07:39,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:07:39,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:07:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:07:39,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:07:39,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:07:39,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017917777] [2022-01-18 22:07:39,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017917777] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:07:39,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:07:39,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 22:07:39,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717451219] [2022-01-18 22:07:39,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:07:39,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 22:07:39,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:07:39,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 22:07:39,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 22:07:39,223 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 133 [2022-01-18 22:07:39,224 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 109 transitions, 222 flow. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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) [2022-01-18 22:07:39,224 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:07:39,224 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 133 [2022-01-18 22:07:39,224 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:07:39,312 INFO L129 PetriNetUnfolder]: 31/215 cut-off events. [2022-01-18 22:07:39,312 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-01-18 22:07:39,313 INFO L84 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 215 events. 31/215 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 737 event pairs, 4 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 267. Up to 24 conditions per place. [2022-01-18 22:07:39,314 INFO L132 encePairwiseOnDemand]: 128/133 looper letters, 11 selfloop transitions, 3 changer transitions 0/113 dead transitions. [2022-01-18 22:07:39,314 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 113 transitions, 259 flow [2022-01-18 22:07:39,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 22:07:39,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-18 22:07:39,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2022-01-18 22:07:39,320 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8671679197994987 [2022-01-18 22:07:39,320 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 346 transitions. [2022-01-18 22:07:39,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 346 transitions. [2022-01-18 22:07:39,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:07:39,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 346 transitions. [2022-01-18 22:07:39,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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) [2022-01-18 22:07:39,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 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) [2022-01-18 22:07:39,325 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 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) [2022-01-18 22:07:39,325 INFO L186 Difference]: Start difference. First operand has 102 places, 109 transitions, 222 flow. Second operand 3 states and 346 transitions. [2022-01-18 22:07:39,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 113 transitions, 259 flow [2022-01-18 22:07:39,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 113 transitions, 259 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-18 22:07:39,338 INFO L242 Difference]: Finished difference. Result has 106 places, 110 transitions, 242 flow [2022-01-18 22:07:39,338 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=106, PETRI_TRANSITIONS=110} [2022-01-18 22:07:39,339 INFO L334 CegarLoopForPetriNet]: 104 programPoint places, 2 predicate places. [2022-01-18 22:07:39,339 INFO L470 AbstractCegarLoop]: Abstraction has has 106 places, 110 transitions, 242 flow [2022-01-18 22:07:39,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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) [2022-01-18 22:07:39,339 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:07:39,339 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:07:39,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 22:07:39,340 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2022-01-18 22:07:39,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:07:39,340 INFO L85 PathProgramCache]: Analyzing trace with hash 685275118, now seen corresponding path program 1 times [2022-01-18 22:07:39,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:07:39,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593218556] [2022-01-18 22:07:39,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:07:39,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:07:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:07:39,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:07:39,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:07:39,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593218556] [2022-01-18 22:07:39,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593218556] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:07:39,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:07:39,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 22:07:39,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849075437] [2022-01-18 22:07:39,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:07:39,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 22:07:39,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:07:39,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 22:07:39,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 22:07:39,435 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 133 [2022-01-18 22:07:39,436 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 110 transitions, 242 flow. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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) [2022-01-18 22:07:39,436 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:07:39,436 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 133 [2022-01-18 22:07:39,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:07:39,481 INFO L129 PetriNetUnfolder]: 25/196 cut-off events. [2022-01-18 22:07:39,482 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2022-01-18 22:07:39,489 INFO L84 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 196 events. 25/196 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 620 event pairs, 5 based on Foata normal form. 7/181 useless extension candidates. Maximal degree in co-relation 260. Up to 22 conditions per place. [2022-01-18 22:07:39,491 INFO L132 encePairwiseOnDemand]: 129/133 looper letters, 9 selfloop transitions, 2 changer transitions 1/111 dead transitions. [2022-01-18 22:07:39,491 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 111 transitions, 269 flow [2022-01-18 22:07:39,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 22:07:39,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-18 22:07:39,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2022-01-18 22:07:39,494 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8621553884711779 [2022-01-18 22:07:39,494 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 344 transitions. [2022-01-18 22:07:39,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 344 transitions. [2022-01-18 22:07:39,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:07:39,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 344 transitions. [2022-01-18 22:07:39,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 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) [2022-01-18 22:07:39,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 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) [2022-01-18 22:07:39,498 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 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) [2022-01-18 22:07:39,498 INFO L186 Difference]: Start difference. First operand has 106 places, 110 transitions, 242 flow. Second operand 3 states and 344 transitions. [2022-01-18 22:07:39,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 111 transitions, 269 flow [2022-01-18 22:07:39,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 111 transitions, 263 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-18 22:07:39,502 INFO L242 Difference]: Finished difference. Result has 107 places, 110 transitions, 246 flow [2022-01-18 22:07:39,502 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=246, PETRI_PLACES=107, PETRI_TRANSITIONS=110} [2022-01-18 22:07:39,503 INFO L334 CegarLoopForPetriNet]: 104 programPoint places, 3 predicate places. [2022-01-18 22:07:39,503 INFO L470 AbstractCegarLoop]: Abstraction has has 107 places, 110 transitions, 246 flow [2022-01-18 22:07:39,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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) [2022-01-18 22:07:39,503 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:07:39,503 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:07:39,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 22:07:39,504 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2022-01-18 22:07:39,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:07:39,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1799529779, now seen corresponding path program 1 times [2022-01-18 22:07:39,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:07:39,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17518175] [2022-01-18 22:07:39,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:07:39,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:07:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:07:39,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:07:39,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:07:39,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17518175] [2022-01-18 22:07:39,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17518175] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:07:39,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:07:39,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 22:07:39,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517889258] [2022-01-18 22:07:39,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:07:39,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 22:07:39,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:07:39,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 22:07:39,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-18 22:07:39,567 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 133 [2022-01-18 22:07:39,568 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 110 transitions, 246 flow. Second operand has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 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) [2022-01-18 22:07:39,568 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:07:39,568 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 133 [2022-01-18 22:07:39,568 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:07:39,763 INFO L129 PetriNetUnfolder]: 430/1239 cut-off events. [2022-01-18 22:07:39,763 INFO L130 PetriNetUnfolder]: For 85/85 co-relation queries the response was YES. [2022-01-18 22:07:39,768 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1999 conditions, 1239 events. 430/1239 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 8086 event pairs, 60 based on Foata normal form. 0/1078 useless extension candidates. Maximal degree in co-relation 1993. Up to 300 conditions per place. [2022-01-18 22:07:39,771 INFO L132 encePairwiseOnDemand]: 119/133 looper letters, 47 selfloop transitions, 5 changer transitions 26/160 dead transitions. [2022-01-18 22:07:39,771 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 160 transitions, 505 flow [2022-01-18 22:07:39,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 22:07:39,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-18 22:07:39,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 546 transitions. [2022-01-18 22:07:39,773 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8210526315789474 [2022-01-18 22:07:39,774 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 546 transitions. [2022-01-18 22:07:39,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 546 transitions. [2022-01-18 22:07:39,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:07:39,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 546 transitions. [2022-01-18 22:07:39,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.2) internal successors, (546), 5 states have internal predecessors, (546), 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) [2022-01-18 22:07:39,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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) [2022-01-18 22:07:39,778 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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) [2022-01-18 22:07:39,778 INFO L186 Difference]: Start difference. First operand has 107 places, 110 transitions, 246 flow. Second operand 5 states and 546 transitions. [2022-01-18 22:07:39,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 160 transitions, 505 flow [2022-01-18 22:07:39,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 160 transitions, 503 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-18 22:07:39,783 INFO L242 Difference]: Finished difference. Result has 114 places, 115 transitions, 320 flow [2022-01-18 22:07:39,784 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=320, PETRI_PLACES=114, PETRI_TRANSITIONS=115} [2022-01-18 22:07:39,784 INFO L334 CegarLoopForPetriNet]: 104 programPoint places, 10 predicate places. [2022-01-18 22:07:39,784 INFO L470 AbstractCegarLoop]: Abstraction has has 114 places, 115 transitions, 320 flow [2022-01-18 22:07:39,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 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) [2022-01-18 22:07:39,785 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:07:39,785 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:07:39,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 22:07:39,786 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2022-01-18 22:07:39,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:07:39,786 INFO L85 PathProgramCache]: Analyzing trace with hash -928539297, now seen corresponding path program 2 times [2022-01-18 22:07:39,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:07:39,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709641995] [2022-01-18 22:07:39,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:07:39,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:07:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:07:39,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:07:39,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:07:39,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709641995] [2022-01-18 22:07:39,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709641995] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:07:39,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:07:39,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 22:07:39,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352019451] [2022-01-18 22:07:39,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:07:39,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 22:07:39,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:07:39,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 22:07:39,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-18 22:07:39,843 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 133 [2022-01-18 22:07:39,844 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 115 transitions, 320 flow. Second operand has 4 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 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) [2022-01-18 22:07:39,844 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:07:39,844 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 133 [2022-01-18 22:07:39,844 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:07:40,031 INFO L129 PetriNetUnfolder]: 324/1536 cut-off events. [2022-01-18 22:07:40,031 INFO L130 PetriNetUnfolder]: For 230/245 co-relation queries the response was YES. [2022-01-18 22:07:40,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2426 conditions, 1536 events. 324/1536 cut-off events. For 230/245 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 11594 event pairs, 33 based on Foata normal form. 1/1357 useless extension candidates. Maximal degree in co-relation 2417. Up to 187 conditions per place. [2022-01-18 22:07:40,042 INFO L132 encePairwiseOnDemand]: 129/133 looper letters, 21 selfloop transitions, 6 changer transitions 0/132 dead transitions. [2022-01-18 22:07:40,042 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 132 transitions, 410 flow [2022-01-18 22:07:40,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 22:07:40,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-18 22:07:40,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 578 transitions. [2022-01-18 22:07:40,044 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.869172932330827 [2022-01-18 22:07:40,044 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 578 transitions. [2022-01-18 22:07:40,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 578 transitions. [2022-01-18 22:07:40,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:07:40,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 578 transitions. [2022-01-18 22:07:40,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 115.6) internal successors, (578), 5 states have internal predecessors, (578), 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) [2022-01-18 22:07:40,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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) [2022-01-18 22:07:40,048 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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) [2022-01-18 22:07:40,048 INFO L186 Difference]: Start difference. First operand has 114 places, 115 transitions, 320 flow. Second operand 5 states and 578 transitions. [2022-01-18 22:07:40,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 132 transitions, 410 flow [2022-01-18 22:07:40,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 132 transitions, 394 flow, removed 8 selfloop flow, removed 1 redundant places. [2022-01-18 22:07:40,061 INFO L242 Difference]: Finished difference. Result has 120 places, 121 transitions, 354 flow [2022-01-18 22:07:40,062 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=354, PETRI_PLACES=120, PETRI_TRANSITIONS=121} [2022-01-18 22:07:40,065 INFO L334 CegarLoopForPetriNet]: 104 programPoint places, 16 predicate places. [2022-01-18 22:07:40,065 INFO L470 AbstractCegarLoop]: Abstraction has has 120 places, 121 transitions, 354 flow [2022-01-18 22:07:40,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 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) [2022-01-18 22:07:40,066 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:07:40,066 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:07:40,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 22:07:40,066 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2022-01-18 22:07:40,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:07:40,068 INFO L85 PathProgramCache]: Analyzing trace with hash -907127399, now seen corresponding path program 3 times [2022-01-18 22:07:40,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:07:40,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231406346] [2022-01-18 22:07:40,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:07:40,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:07:40,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:07:40,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:07:40,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:07:40,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231406346] [2022-01-18 22:07:40,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231406346] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:07:40,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:07:40,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 22:07:40,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394606772] [2022-01-18 22:07:40,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:07:40,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 22:07:40,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:07:40,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 22:07:40,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-18 22:07:40,152 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 133 [2022-01-18 22:07:40,153 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 121 transitions, 354 flow. Second operand has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 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) [2022-01-18 22:07:40,153 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:07:40,153 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 133 [2022-01-18 22:07:40,153 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:07:40,286 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([373] L777-->L780: Formula: (= 2 v_~x~0_1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0][55], [Black: 130#(= (+ (- 1) ~X~0) 0), 104#L710true, 6#L846-4true, 133#true, Black: 138#(and (= thr2Thread1of1ForFork1_~y2~0 1) (= ~y~0 1)), 119#true, Black: 135#(= ~y~0 1), 147#(= 2 ~x~0), 156#true, thr2Thread1of1ForFork1InUse, Black: 145#true, Black: 148#(= 2 thr1Thread1of1ForFork0_~x1~0), 11#L780true, Black: 150#(and (= 2 ~x~0) (= 2 thr1Thread1of1ForFork0_~x1~0)), Black: 122#true]) [2022-01-18 22:07:40,287 INFO L384 tUnfolder$Statistics]: this new event has 55 ancestors and is cut-off event [2022-01-18 22:07:40,287 INFO L387 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2022-01-18 22:07:40,287 INFO L387 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2022-01-18 22:07:40,287 INFO L387 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2022-01-18 22:07:40,661 INFO L129 PetriNetUnfolder]: 1188/3819 cut-off events. [2022-01-18 22:07:40,661 INFO L130 PetriNetUnfolder]: For 1424/1482 co-relation queries the response was YES. [2022-01-18 22:07:40,677 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7576 conditions, 3819 events. 1188/3819 cut-off events. For 1424/1482 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 32603 event pairs, 155 based on Foata normal form. 27/3490 useless extension candidates. Maximal degree in co-relation 7564. Up to 885 conditions per place. [2022-01-18 22:07:40,693 INFO L132 encePairwiseOnDemand]: 119/133 looper letters, 63 selfloop transitions, 16 changer transitions 3/170 dead transitions. [2022-01-18 22:07:40,693 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 170 transitions, 657 flow [2022-01-18 22:07:40,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 22:07:40,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-18 22:07:40,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 545 transitions. [2022-01-18 22:07:40,695 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8195488721804511 [2022-01-18 22:07:40,695 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 545 transitions. [2022-01-18 22:07:40,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 545 transitions. [2022-01-18 22:07:40,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:07:40,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 545 transitions. [2022-01-18 22:07:40,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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) [2022-01-18 22:07:40,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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) [2022-01-18 22:07:40,699 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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) [2022-01-18 22:07:40,700 INFO L186 Difference]: Start difference. First operand has 120 places, 121 transitions, 354 flow. Second operand 5 states and 545 transitions. [2022-01-18 22:07:40,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 170 transitions, 657 flow [2022-01-18 22:07:40,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 170 transitions, 657 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-18 22:07:40,707 INFO L242 Difference]: Finished difference. Result has 128 places, 134 transitions, 492 flow [2022-01-18 22:07:40,707 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=492, PETRI_PLACES=128, PETRI_TRANSITIONS=134} [2022-01-18 22:07:40,709 INFO L334 CegarLoopForPetriNet]: 104 programPoint places, 24 predicate places. [2022-01-18 22:07:40,710 INFO L470 AbstractCegarLoop]: Abstraction has has 128 places, 134 transitions, 492 flow [2022-01-18 22:07:40,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 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) [2022-01-18 22:07:40,710 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:07:40,710 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:07:40,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 22:07:40,710 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2022-01-18 22:07:40,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:07:40,711 INFO L85 PathProgramCache]: Analyzing trace with hash 2025051371, now seen corresponding path program 4 times [2022-01-18 22:07:40,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:07:40,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474817351] [2022-01-18 22:07:40,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:07:40,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:07:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:07:40,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:07:40,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:07:40,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474817351] [2022-01-18 22:07:40,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474817351] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:07:40,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:07:40,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 22:07:40,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537057854] [2022-01-18 22:07:40,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:07:40,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 22:07:40,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:07:40,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 22:07:40,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-18 22:07:40,780 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 133 [2022-01-18 22:07:40,785 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 134 transitions, 492 flow. Second operand has 4 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 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) [2022-01-18 22:07:40,786 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:07:40,786 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 133 [2022-01-18 22:07:40,786 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:07:41,205 INFO L129 PetriNetUnfolder]: 714/3354 cut-off events. [2022-01-18 22:07:41,206 INFO L130 PetriNetUnfolder]: For 1974/2058 co-relation queries the response was YES. [2022-01-18 22:07:41,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6730 conditions, 3354 events. 714/3354 cut-off events. For 1974/2058 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 30538 event pairs, 69 based on Foata normal form. 35/3246 useless extension candidates. Maximal degree in co-relation 6714. Up to 469 conditions per place. [2022-01-18 22:07:41,236 INFO L132 encePairwiseOnDemand]: 129/133 looper letters, 28 selfloop transitions, 11 changer transitions 0/157 dead transitions. [2022-01-18 22:07:41,236 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 157 transitions, 673 flow [2022-01-18 22:07:41,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 22:07:41,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-18 22:07:41,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 580 transitions. [2022-01-18 22:07:41,238 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8721804511278195 [2022-01-18 22:07:41,239 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 580 transitions. [2022-01-18 22:07:41,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 580 transitions. [2022-01-18 22:07:41,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:07:41,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 580 transitions. [2022-01-18 22:07:41,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 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) [2022-01-18 22:07:41,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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) [2022-01-18 22:07:41,243 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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) [2022-01-18 22:07:41,243 INFO L186 Difference]: Start difference. First operand has 128 places, 134 transitions, 492 flow. Second operand 5 states and 580 transitions. [2022-01-18 22:07:41,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 157 transitions, 673 flow [2022-01-18 22:07:41,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 157 transitions, 673 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-18 22:07:41,252 INFO L242 Difference]: Finished difference. Result has 136 places, 142 transitions, 586 flow [2022-01-18 22:07:41,252 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=586, PETRI_PLACES=136, PETRI_TRANSITIONS=142} [2022-01-18 22:07:41,253 INFO L334 CegarLoopForPetriNet]: 104 programPoint places, 32 predicate places. [2022-01-18 22:07:41,253 INFO L470 AbstractCegarLoop]: Abstraction has has 136 places, 142 transitions, 586 flow [2022-01-18 22:07:41,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 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) [2022-01-18 22:07:41,253 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:07:41,253 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:07:41,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 22:07:41,254 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2022-01-18 22:07:41,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:07:41,254 INFO L85 PathProgramCache]: Analyzing trace with hash 547816781, now seen corresponding path program 1 times [2022-01-18 22:07:41,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:07:41,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143067034] [2022-01-18 22:07:41,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:07:41,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:07:41,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:07:41,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:07:41,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:07:41,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143067034] [2022-01-18 22:07:41,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143067034] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:07:41,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:07:41,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 22:07:41,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529825403] [2022-01-18 22:07:41,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:07:41,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 22:07:41,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:07:41,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 22:07:41,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-18 22:07:41,325 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 133 [2022-01-18 22:07:41,325 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 142 transitions, 586 flow. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 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) [2022-01-18 22:07:41,326 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:07:41,326 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 133 [2022-01-18 22:07:41,326 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:07:41,666 INFO L129 PetriNetUnfolder]: 672/3164 cut-off events. [2022-01-18 22:07:41,667 INFO L130 PetriNetUnfolder]: For 1587/1642 co-relation queries the response was YES. [2022-01-18 22:07:41,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6489 conditions, 3164 events. 672/3164 cut-off events. For 1587/1642 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 29350 event pairs, 75 based on Foata normal form. 15/3057 useless extension candidates. Maximal degree in co-relation 6469. Up to 385 conditions per place. [2022-01-18 22:07:41,692 INFO L132 encePairwiseOnDemand]: 126/133 looper letters, 15 selfloop transitions, 10 changer transitions 5/155 dead transitions. [2022-01-18 22:07:41,692 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 155 transitions, 659 flow [2022-01-18 22:07:41,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 22:07:41,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-18 22:07:41,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 569 transitions. [2022-01-18 22:07:41,695 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8556390977443609 [2022-01-18 22:07:41,695 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 569 transitions. [2022-01-18 22:07:41,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 569 transitions. [2022-01-18 22:07:41,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:07:41,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 569 transitions. [2022-01-18 22:07:41,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 113.8) internal successors, (569), 5 states have internal predecessors, (569), 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) [2022-01-18 22:07:41,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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) [2022-01-18 22:07:41,698 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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) [2022-01-18 22:07:41,698 INFO L186 Difference]: Start difference. First operand has 136 places, 142 transitions, 586 flow. Second operand 5 states and 569 transitions. [2022-01-18 22:07:41,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 155 transitions, 659 flow [2022-01-18 22:07:41,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 155 transitions, 655 flow, removed 2 selfloop flow, removed 0 redundant places. [2022-01-18 22:07:41,709 INFO L242 Difference]: Finished difference. Result has 143 places, 144 transitions, 615 flow [2022-01-18 22:07:41,709 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=615, PETRI_PLACES=143, PETRI_TRANSITIONS=144} [2022-01-18 22:07:41,711 INFO L334 CegarLoopForPetriNet]: 104 programPoint places, 39 predicate places. [2022-01-18 22:07:41,711 INFO L470 AbstractCegarLoop]: Abstraction has has 143 places, 144 transitions, 615 flow [2022-01-18 22:07:41,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 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) [2022-01-18 22:07:41,711 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:07:41,711 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:07:41,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 22:07:41,712 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2022-01-18 22:07:41,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:07:41,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1481179120, now seen corresponding path program 1 times [2022-01-18 22:07:41,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:07:41,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376387291] [2022-01-18 22:07:41,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:07:41,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:07:41,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:07:41,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:07:41,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:07:41,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376387291] [2022-01-18 22:07:41,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376387291] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:07:41,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:07:41,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 22:07:41,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109557243] [2022-01-18 22:07:41,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:07:41,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 22:07:41,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:07:41,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 22:07:41,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-18 22:07:41,763 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 133 [2022-01-18 22:07:41,763 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 144 transitions, 615 flow. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 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) [2022-01-18 22:07:41,763 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:07:41,763 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 133 [2022-01-18 22:07:41,763 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:07:42,080 INFO L129 PetriNetUnfolder]: 633/2953 cut-off events. [2022-01-18 22:07:42,080 INFO L130 PetriNetUnfolder]: For 1382/1418 co-relation queries the response was YES. [2022-01-18 22:07:42,098 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6389 conditions, 2953 events. 633/2953 cut-off events. For 1382/1418 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 26314 event pairs, 63 based on Foata normal form. 8/2860 useless extension candidates. Maximal degree in co-relation 6365. Up to 364 conditions per place. [2022-01-18 22:07:42,102 INFO L132 encePairwiseOnDemand]: 126/133 looper letters, 0 selfloop transitions, 0 changer transitions 154/154 dead transitions. [2022-01-18 22:07:42,102 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 154 transitions, 674 flow [2022-01-18 22:07:42,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 22:07:42,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-18 22:07:42,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 570 transitions. [2022-01-18 22:07:42,104 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2022-01-18 22:07:42,104 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 570 transitions. [2022-01-18 22:07:42,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 570 transitions. [2022-01-18 22:07:42,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:07:42,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 570 transitions. [2022-01-18 22:07:42,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 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) [2022-01-18 22:07:42,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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) [2022-01-18 22:07:42,107 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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) [2022-01-18 22:07:42,107 INFO L186 Difference]: Start difference. First operand has 143 places, 144 transitions, 615 flow. Second operand 5 states and 570 transitions. [2022-01-18 22:07:42,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 154 transitions, 674 flow [2022-01-18 22:07:42,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 154 transitions, 660 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-01-18 22:07:42,124 INFO L242 Difference]: Finished difference. Result has 142 places, 0 transitions, 0 flow [2022-01-18 22:07:42,124 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=142, PETRI_TRANSITIONS=0} [2022-01-18 22:07:42,125 INFO L334 CegarLoopForPetriNet]: 104 programPoint places, 38 predicate places. [2022-01-18 22:07:42,125 INFO L470 AbstractCegarLoop]: Abstraction has has 142 places, 0 transitions, 0 flow [2022-01-18 22:07:42,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 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) [2022-01-18 22:07:42,127 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-01-18 22:07:42,127 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-01-18 22:07:42,127 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 6 remaining) [2022-01-18 22:07:42,128 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 6 remaining) [2022-01-18 22:07:42,128 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-01-18 22:07:42,132 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-01-18 22:07:42,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 22:07:42,136 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1] [2022-01-18 22:07:42,139 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 22:07:42,139 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 22:07:42,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 10:07:42 BasicIcfg [2022-01-18 22:07:42,145 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 22:07:42,146 INFO L158 Benchmark]: Toolchain (without parser) took 4366.54ms. Allocated memory was 373.3MB in the beginning and 518.0MB in the end (delta: 144.7MB). Free memory was 318.8MB in the beginning and 408.0MB in the end (delta: -89.1MB). Peak memory consumption was 279.5MB. Max. memory is 16.0GB. [2022-01-18 22:07:42,146 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 373.3MB. Free memory is still 336.5MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 22:07:42,146 INFO L158 Benchmark]: CACSL2BoogieTranslator took 426.71ms. Allocated memory is still 373.3MB. Free memory was 318.6MB in the beginning and 335.0MB in the end (delta: -16.4MB). Peak memory consumption was 18.0MB. Max. memory is 16.0GB. [2022-01-18 22:07:42,146 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.46ms. Allocated memory is still 373.3MB. Free memory was 335.0MB in the beginning and 333.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 22:07:42,147 INFO L158 Benchmark]: Boogie Preprocessor took 21.22ms. Allocated memory is still 373.3MB. Free memory was 332.9MB in the beginning and 331.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 22:07:42,147 INFO L158 Benchmark]: RCFGBuilder took 369.94ms. Allocated memory is still 373.3MB. Free memory was 331.8MB in the beginning and 317.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2022-01-18 22:07:42,147 INFO L158 Benchmark]: TraceAbstraction took 3497.68ms. Allocated memory was 373.3MB in the beginning and 518.0MB in the end (delta: 144.7MB). Free memory was 316.1MB in the beginning and 408.0MB in the end (delta: -91.9MB). Peak memory consumption was 276.2MB. Max. memory is 16.0GB. [2022-01-18 22:07:42,149 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 373.3MB. Free memory is still 336.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 426.71ms. Allocated memory is still 373.3MB. Free memory was 318.6MB in the beginning and 335.0MB in the end (delta: -16.4MB). Peak memory consumption was 18.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 46.46ms. Allocated memory is still 373.3MB. Free memory was 335.0MB in the beginning and 333.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 21.22ms. Allocated memory is still 373.3MB. Free memory was 332.9MB in the beginning and 331.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 369.94ms. Allocated memory is still 373.3MB. Free memory was 331.8MB in the beginning and 317.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 3497.68ms. Allocated memory was 373.3MB in the beginning and 518.0MB in the end (delta: 144.7MB). Free memory was 316.1MB in the beginning and 408.0MB in the end (delta: -91.9MB). Peak memory consumption was 276.2MB. Max. memory is 16.0GB. * 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 - PositiveResult [Line: 834]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 764]: 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 5 procedures, 176 locations, 6 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: 3.4s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 133 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 133 mSDsluCounter, 204 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 105 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 351 IncrementalHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 138 mSDtfsCounter, 351 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=615occurred in iteration=8, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 434 NumberOfCodeBlocks, 434 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 425 ConstructedInterpolants, 0 QuantifiedInterpolants, 563 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-18 22:07:42,183 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...