/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-Before.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 04:58:43,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 04:58:43,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 04:58:44,019 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 04:58:44,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 04:58:44,022 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 04:58:44,025 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 04:58:44,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 04:58:44,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 04:58:44,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 04:58:44,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 04:58:44,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 04:58:44,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 04:58:44,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 04:58:44,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 04:58:44,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 04:58:44,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 04:58:44,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 04:58:44,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 04:58:44,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 04:58:44,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 04:58:44,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 04:58:44,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 04:58:44,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 04:58:44,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 04:58:44,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 04:58:44,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 04:58:44,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 04:58:44,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 04:58:44,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 04:58:44,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 04:58:44,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 04:58:44,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 04:58:44,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 04:58:44,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 04:58:44,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 04:58:44,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 04:58:44,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 04:58:44,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 04:58:44,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 04:58:44,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 04:58:44,070 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-Before.epf [2022-01-19 04:58:44,095 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 04:58:44,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 04:58:44,096 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 04:58:44,096 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 04:58:44,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 04:58:44,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 04:58:44,096 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 04:58:44,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 04:58:44,097 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 04:58:44,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 04:58:44,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 04:58:44,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 04:58:44,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 04:58:44,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 04:58:44,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 04:58:44,097 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 04:58:44,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 04:58:44,098 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 04:58:44,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 04:58:44,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 04:58:44,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 04:58:44,098 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 04:58:44,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 04:58:44,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 04:58:44,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 04:58:44,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 04:58:44,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 04:58:44,102 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 04:58:44,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 04:58:44,103 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 04:58:44,103 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 04:58:44,103 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 04:58:44,103 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 04:58:44,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 04:58:44,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 04:58:44,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 04:58:44,296 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 04:58:44,296 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 04:58:44,297 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.i [2022-01-19 04:58:44,357 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e720b25ce/2474e109e4a54cecad927fdf10b1f0ae/FLAGc821e7f9d [2022-01-19 04:58:44,732 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 04:58:44,733 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.i [2022-01-19 04:58:44,754 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e720b25ce/2474e109e4a54cecad927fdf10b1f0ae/FLAGc821e7f9d [2022-01-19 04:58:45,081 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e720b25ce/2474e109e4a54cecad927fdf10b1f0ae [2022-01-19 04:58:45,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 04:58:45,084 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 04:58:45,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 04:58:45,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 04:58:45,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 04:58:45,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 04:58:45" (1/1) ... [2022-01-19 04:58:45,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c1f46c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:58:45, skipping insertion in model container [2022-01-19 04:58:45,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 04:58:45" (1/1) ... [2022-01-19 04:58:45,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 04:58:45,127 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 04:58:45,286 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-wmm/safe011_tso.i[945,958] [2022-01-19 04:58:45,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 04:58:45,460 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 04:58:45,470 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-wmm/safe011_tso.i[945,958] [2022-01-19 04:58:45,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 04:58:45,533 INFO L208 MainTranslator]: Completed translation [2022-01-19 04:58:45,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:58:45 WrapperNode [2022-01-19 04:58:45,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 04:58:45,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 04:58:45,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 04:58:45,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 04:58:45,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:58:45" (1/1) ... [2022-01-19 04:58:45,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:58:45" (1/1) ... [2022-01-19 04:58:45,594 INFO L137 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-01-19 04:58:45,594 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 04:58:45,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 04:58:45,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 04:58:45,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 04:58:45,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:58:45" (1/1) ... [2022-01-19 04:58:45,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:58:45" (1/1) ... [2022-01-19 04:58:45,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:58:45" (1/1) ... [2022-01-19 04:58:45,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:58:45" (1/1) ... [2022-01-19 04:58:45,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:58:45" (1/1) ... [2022-01-19 04:58:45,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:58:45" (1/1) ... [2022-01-19 04:58:45,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:58:45" (1/1) ... [2022-01-19 04:58:45,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 04:58:45,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 04:58:45,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 04:58:45,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 04:58:45,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:58:45" (1/1) ... [2022-01-19 04:58:45,642 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 04:58:45,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 04:58:45,664 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) [2022-01-19 04:58:45,686 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 [2022-01-19 04:58:45,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 04:58:45,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-19 04:58:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 04:58:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 04:58:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 04:58:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-01-19 04:58:45,700 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-01-19 04:58:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-01-19 04:58:45,700 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-01-19 04:58:45,701 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-01-19 04:58:45,702 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-01-19 04:58:45,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 04:58:45,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-19 04:58:45,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 04:58:45,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 04:58:45,704 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 04:58:45,811 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 04:58:45,812 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 04:58:45,939 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 04:58:45,945 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 04:58:45,945 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 04:58:45,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 04:58:45 BoogieIcfgContainer [2022-01-19 04:58:45,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 04:58:45,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 04:58:45,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 04:58:45,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 04:58:45,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 04:58:45" (1/3) ... [2022-01-19 04:58:45,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63a865f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 04:58:45, skipping insertion in model container [2022-01-19 04:58:45,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:58:45" (2/3) ... [2022-01-19 04:58:45,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63a865f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 04:58:45, skipping insertion in model container [2022-01-19 04:58:45,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 04:58:45" (3/3) ... [2022-01-19 04:58:45,955 INFO L111 eAbstractionObserver]: Analyzing ICFG safe011_tso.i [2022-01-19 04:58:45,959 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 04:58:45,959 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 04:58:45,959 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 04:58:45,995 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:45,995 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:45,995 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:45,996 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:45,996 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:45,996 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:45,996 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:45,996 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:45,997 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:45,997 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:45,997 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:45,998 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:45,998 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:45,998 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:45,998 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:45,998 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:45,999 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:45,999 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:45,999 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:45,999 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,000 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,000 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,000 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,000 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,000 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,001 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,001 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,001 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,001 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,001 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,001 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,001 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,002 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,002 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,002 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,002 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,005 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,005 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,006 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,006 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,012 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,013 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,013 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,013 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,014 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,014 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,014 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,014 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:58:46,015 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-19 04:58:46,056 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 04:58:46,062 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 [2022-01-19 04:58:46,063 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-19 04:58:46,073 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 99 places, 91 transitions, 197 flow [2022-01-19 04:58:46,114 INFO L129 PetriNetUnfolder]: 2/88 cut-off events. [2022-01-19 04:58:46,115 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 04:58:46,118 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2022-01-19 04:58:46,118 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 91 transitions, 197 flow [2022-01-19 04:58:46,128 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 74 transitions, 157 flow [2022-01-19 04:58:46,154 INFO L129 PetriNetUnfolder]: 1/73 cut-off events. [2022-01-19 04:58:46,154 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 04:58:46,155 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:58:46,155 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] [2022-01-19 04:58:46,156 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 04:58:46,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:58:46,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1250208404, now seen corresponding path program 1 times [2022-01-19 04:58:46,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:58:46,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479263088] [2022-01-19 04:58:46,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:58:46,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:58:46,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:58:46,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 04:58:46,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:58:46,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479263088] [2022-01-19 04:58:46,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479263088] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:58:46,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:58:46,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 04:58:46,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951534418] [2022-01-19 04:58:46,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:58:46,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 04:58:46,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:58:46,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 04:58:46,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 04:58:46,643 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 91 [2022-01-19 04:58:46,649 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 74 transitions, 157 flow. Second operand has 7 states, 7 states have (on average 71.71428571428571) internal successors, (502), 7 states have internal predecessors, (502), 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) [2022-01-19 04:58:46,649 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:58:46,649 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 91 [2022-01-19 04:58:46,650 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:58:47,067 INFO L129 PetriNetUnfolder]: 303/820 cut-off events. [2022-01-19 04:58:47,068 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-01-19 04:58:47,070 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1371 conditions, 820 events. 303/820 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4890 event pairs, 31 based on Foata normal form. 27/816 useless extension candidates. Maximal degree in co-relation 1335. Up to 135 conditions per place. [2022-01-19 04:58:47,077 INFO L132 encePairwiseOnDemand]: 80/91 looper letters, 22 selfloop transitions, 6 changer transitions 47/131 dead transitions. [2022-01-19 04:58:47,080 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 131 transitions, 421 flow [2022-01-19 04:58:47,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-19 04:58:47,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-01-19 04:58:47,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 991 transitions. [2022-01-19 04:58:47,107 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8377007607776839 [2022-01-19 04:58:47,107 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 991 transitions. [2022-01-19 04:58:47,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 991 transitions. [2022-01-19 04:58:47,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:58:47,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 991 transitions. [2022-01-19 04:58:47,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 76.23076923076923) internal successors, (991), 13 states have internal predecessors, (991), 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) [2022-01-19 04:58:47,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 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) [2022-01-19 04:58:47,127 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 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) [2022-01-19 04:58:47,129 INFO L186 Difference]: Start difference. First operand has 83 places, 74 transitions, 157 flow. Second operand 13 states and 991 transitions. [2022-01-19 04:58:47,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 131 transitions, 421 flow [2022-01-19 04:58:47,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 131 transitions, 418 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-01-19 04:58:47,136 INFO L242 Difference]: Finished difference. Result has 104 places, 77 transitions, 238 flow [2022-01-19 04:58:47,138 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=238, PETRI_PLACES=104, PETRI_TRANSITIONS=77} [2022-01-19 04:58:47,142 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 21 predicate places. [2022-01-19 04:58:47,142 INFO L470 AbstractCegarLoop]: Abstraction has has 104 places, 77 transitions, 238 flow [2022-01-19 04:58:47,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 71.71428571428571) internal successors, (502), 7 states have internal predecessors, (502), 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) [2022-01-19 04:58:47,143 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:58:47,143 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] [2022-01-19 04:58:47,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 04:58:47,143 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 04:58:47,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:58:47,144 INFO L85 PathProgramCache]: Analyzing trace with hash 404556299, now seen corresponding path program 1 times [2022-01-19 04:58:47,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:58:47,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228821981] [2022-01-19 04:58:47,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:58:47,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:58:47,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:58:47,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 04:58:47,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:58:47,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228821981] [2022-01-19 04:58:47,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228821981] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:58:47,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:58:47,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 04:58:47,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278303763] [2022-01-19 04:58:47,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:58:47,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 04:58:47,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:58:47,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 04:58:47,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-19 04:58:47,293 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 91 [2022-01-19 04:58:47,294 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 77 transitions, 238 flow. Second operand has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 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) [2022-01-19 04:58:47,294 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:58:47,294 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 91 [2022-01-19 04:58:47,294 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:58:47,652 INFO L129 PetriNetUnfolder]: 472/1239 cut-off events. [2022-01-19 04:58:47,652 INFO L130 PetriNetUnfolder]: For 2689/3434 co-relation queries the response was YES. [2022-01-19 04:58:47,657 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3770 conditions, 1239 events. 472/1239 cut-off events. For 2689/3434 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 8121 event pairs, 9 based on Foata normal form. 35/1238 useless extension candidates. Maximal degree in co-relation 3722. Up to 258 conditions per place. [2022-01-19 04:58:47,663 INFO L132 encePairwiseOnDemand]: 79/91 looper letters, 40 selfloop transitions, 18 changer transitions 84/196 dead transitions. [2022-01-19 04:58:47,663 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 196 transitions, 1358 flow [2022-01-19 04:58:47,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 04:58:47,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 04:58:47,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1272 transitions. [2022-01-19 04:58:47,667 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8222365869424693 [2022-01-19 04:58:47,667 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1272 transitions. [2022-01-19 04:58:47,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1272 transitions. [2022-01-19 04:58:47,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:58:47,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1272 transitions. [2022-01-19 04:58:47,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 74.82352941176471) internal successors, (1272), 17 states have internal predecessors, (1272), 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) [2022-01-19 04:58:47,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 91.0) internal successors, (1638), 18 states have internal predecessors, (1638), 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) [2022-01-19 04:58:47,674 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 91.0) internal successors, (1638), 18 states have internal predecessors, (1638), 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) [2022-01-19 04:58:47,675 INFO L186 Difference]: Start difference. First operand has 104 places, 77 transitions, 238 flow. Second operand 17 states and 1272 transitions. [2022-01-19 04:58:47,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 196 transitions, 1358 flow [2022-01-19 04:58:47,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 196 transitions, 1313 flow, removed 20 selfloop flow, removed 4 redundant places. [2022-01-19 04:58:47,694 INFO L242 Difference]: Finished difference. Result has 123 places, 90 transitions, 472 flow [2022-01-19 04:58:47,695 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=472, PETRI_PLACES=123, PETRI_TRANSITIONS=90} [2022-01-19 04:58:47,695 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 40 predicate places. [2022-01-19 04:58:47,695 INFO L470 AbstractCegarLoop]: Abstraction has has 123 places, 90 transitions, 472 flow [2022-01-19 04:58:47,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 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) [2022-01-19 04:58:47,696 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:58:47,696 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] [2022-01-19 04:58:47,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 04:58:47,696 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 04:58:47,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:58:47,697 INFO L85 PathProgramCache]: Analyzing trace with hash -332297076, now seen corresponding path program 1 times [2022-01-19 04:58:47,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:58:47,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363947714] [2022-01-19 04:58:47,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:58:47,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:58:47,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:58:47,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 04:58:47,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:58:47,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363947714] [2022-01-19 04:58:47,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363947714] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:58:47,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:58:47,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 04:58:47,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906921853] [2022-01-19 04:58:47,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:58:47,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 04:58:47,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:58:47,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 04:58:47,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 04:58:47,878 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 91 [2022-01-19 04:58:47,878 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 90 transitions, 472 flow. Second operand has 7 states, 7 states have (on average 72.0) internal successors, (504), 7 states have internal predecessors, (504), 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) [2022-01-19 04:58:47,878 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:58:47,878 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 91 [2022-01-19 04:58:47,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:58:48,185 INFO L129 PetriNetUnfolder]: 227/718 cut-off events. [2022-01-19 04:58:48,185 INFO L130 PetriNetUnfolder]: For 5696/5994 co-relation queries the response was YES. [2022-01-19 04:58:48,189 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3212 conditions, 718 events. 227/718 cut-off events. For 5696/5994 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4146 event pairs, 6 based on Foata normal form. 31/731 useless extension candidates. Maximal degree in co-relation 3149. Up to 188 conditions per place. [2022-01-19 04:58:48,193 INFO L132 encePairwiseOnDemand]: 80/91 looper letters, 31 selfloop transitions, 22 changer transitions 47/157 dead transitions. [2022-01-19 04:58:48,194 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 157 transitions, 1403 flow [2022-01-19 04:58:48,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-19 04:58:48,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-01-19 04:58:48,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 981 transitions. [2022-01-19 04:58:48,196 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8292476754015216 [2022-01-19 04:58:48,196 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 981 transitions. [2022-01-19 04:58:48,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 981 transitions. [2022-01-19 04:58:48,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:58:48,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 981 transitions. [2022-01-19 04:58:48,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 75.46153846153847) internal successors, (981), 13 states have internal predecessors, (981), 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) [2022-01-19 04:58:48,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 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) [2022-01-19 04:58:48,202 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 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) [2022-01-19 04:58:48,202 INFO L186 Difference]: Start difference. First operand has 123 places, 90 transitions, 472 flow. Second operand 13 states and 981 transitions. [2022-01-19 04:58:48,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 157 transitions, 1403 flow [2022-01-19 04:58:48,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 157 transitions, 1259 flow, removed 72 selfloop flow, removed 9 redundant places. [2022-01-19 04:58:48,227 INFO L242 Difference]: Finished difference. Result has 126 places, 100 transitions, 677 flow [2022-01-19 04:58:48,228 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=677, PETRI_PLACES=126, PETRI_TRANSITIONS=100} [2022-01-19 04:58:48,230 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 43 predicate places. [2022-01-19 04:58:48,230 INFO L470 AbstractCegarLoop]: Abstraction has has 126 places, 100 transitions, 677 flow [2022-01-19 04:58:48,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 72.0) internal successors, (504), 7 states have internal predecessors, (504), 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) [2022-01-19 04:58:48,230 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:58:48,230 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] [2022-01-19 04:58:48,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 04:58:48,234 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 04:58:48,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:58:48,239 INFO L85 PathProgramCache]: Analyzing trace with hash -740900114, now seen corresponding path program 1 times [2022-01-19 04:58:48,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:58:48,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752396981] [2022-01-19 04:58:48,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:58:48,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:58:48,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:58:48,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 04:58:48,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:58:48,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752396981] [2022-01-19 04:58:48,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752396981] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:58:48,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:58:48,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 04:58:48,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177130670] [2022-01-19 04:58:48,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:58:48,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 04:58:48,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:58:48,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 04:58:48,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 04:58:48,392 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 91 [2022-01-19 04:58:48,393 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 100 transitions, 677 flow. Second operand has 7 states, 7 states have (on average 72.0) internal successors, (504), 7 states have internal predecessors, (504), 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) [2022-01-19 04:58:48,393 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:58:48,393 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 91 [2022-01-19 04:58:48,393 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:58:48,637 INFO L129 PetriNetUnfolder]: 172/645 cut-off events. [2022-01-19 04:58:48,637 INFO L130 PetriNetUnfolder]: For 4881/5329 co-relation queries the response was YES. [2022-01-19 04:58:48,642 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2695 conditions, 645 events. 172/645 cut-off events. For 4881/5329 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3785 event pairs, 2 based on Foata normal form. 27/660 useless extension candidates. Maximal degree in co-relation 2625. Up to 145 conditions per place. [2022-01-19 04:58:48,646 INFO L132 encePairwiseOnDemand]: 80/91 looper letters, 30 selfloop transitions, 29 changer transitions 43/159 dead transitions. [2022-01-19 04:58:48,646 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 159 transitions, 1617 flow [2022-01-19 04:58:48,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-19 04:58:48,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-01-19 04:58:48,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 978 transitions. [2022-01-19 04:58:48,649 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8267117497886729 [2022-01-19 04:58:48,649 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 978 transitions. [2022-01-19 04:58:48,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 978 transitions. [2022-01-19 04:58:48,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:58:48,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 978 transitions. [2022-01-19 04:58:48,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 75.23076923076923) internal successors, (978), 13 states have internal predecessors, (978), 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) [2022-01-19 04:58:48,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 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) [2022-01-19 04:58:48,655 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 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) [2022-01-19 04:58:48,655 INFO L186 Difference]: Start difference. First operand has 126 places, 100 transitions, 677 flow. Second operand 13 states and 978 transitions. [2022-01-19 04:58:48,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 159 transitions, 1617 flow [2022-01-19 04:58:48,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 159 transitions, 1485 flow, removed 66 selfloop flow, removed 9 redundant places. [2022-01-19 04:58:48,673 INFO L242 Difference]: Finished difference. Result has 130 places, 105 transitions, 791 flow [2022-01-19 04:58:48,673 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=629, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=791, PETRI_PLACES=130, PETRI_TRANSITIONS=105} [2022-01-19 04:58:48,674 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 47 predicate places. [2022-01-19 04:58:48,675 INFO L470 AbstractCegarLoop]: Abstraction has has 130 places, 105 transitions, 791 flow [2022-01-19 04:58:48,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 72.0) internal successors, (504), 7 states have internal predecessors, (504), 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) [2022-01-19 04:58:48,676 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:58:48,676 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, 1] [2022-01-19 04:58:48,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 04:58:48,676 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 04:58:48,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:58:48,678 INFO L85 PathProgramCache]: Analyzing trace with hash -46698488, now seen corresponding path program 1 times [2022-01-19 04:58:48,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:58:48,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276685571] [2022-01-19 04:58:48,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:58:48,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:58:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:58:48,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 04:58:48,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:58:48,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276685571] [2022-01-19 04:58:48,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276685571] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:58:48,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:58:48,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 04:58:48,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666361735] [2022-01-19 04:58:48,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:58:48,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 04:58:48,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:58:48,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 04:58:48,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-19 04:58:48,800 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 91 [2022-01-19 04:58:48,801 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 105 transitions, 791 flow. Second operand has 8 states, 8 states have (on average 70.0) internal successors, (560), 8 states have internal predecessors, (560), 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) [2022-01-19 04:58:48,801 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:58:48,801 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 91 [2022-01-19 04:58:48,801 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:58:48,989 INFO L129 PetriNetUnfolder]: 165/535 cut-off events. [2022-01-19 04:58:48,989 INFO L130 PetriNetUnfolder]: For 4403/6091 co-relation queries the response was YES. [2022-01-19 04:58:48,993 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2579 conditions, 535 events. 165/535 cut-off events. For 4403/6091 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2790 event pairs, 9 based on Foata normal form. 17/529 useless extension candidates. Maximal degree in co-relation 2504. Up to 122 conditions per place. [2022-01-19 04:58:48,995 INFO L132 encePairwiseOnDemand]: 80/91 looper letters, 28 selfloop transitions, 10 changer transitions 76/168 dead transitions. [2022-01-19 04:58:48,996 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 168 transitions, 1874 flow [2022-01-19 04:58:48,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 04:58:48,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 04:58:48,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 813 transitions. [2022-01-19 04:58:48,998 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8121878121878122 [2022-01-19 04:58:48,998 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 813 transitions. [2022-01-19 04:58:48,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 813 transitions. [2022-01-19 04:58:48,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:58:48,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 813 transitions. [2022-01-19 04:58:49,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 73.9090909090909) internal successors, (813), 11 states have internal predecessors, (813), 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) [2022-01-19 04:58:49,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 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) [2022-01-19 04:58:49,003 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 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) [2022-01-19 04:58:49,003 INFO L186 Difference]: Start difference. First operand has 130 places, 105 transitions, 791 flow. Second operand 11 states and 813 transitions. [2022-01-19 04:58:49,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 168 transitions, 1874 flow [2022-01-19 04:58:49,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 168 transitions, 1706 flow, removed 62 selfloop flow, removed 13 redundant places. [2022-01-19 04:58:49,023 INFO L242 Difference]: Finished difference. Result has 126 places, 85 transitions, 485 flow [2022-01-19 04:58:49,023 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=725, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=485, PETRI_PLACES=126, PETRI_TRANSITIONS=85} [2022-01-19 04:58:49,024 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 43 predicate places. [2022-01-19 04:58:49,024 INFO L470 AbstractCegarLoop]: Abstraction has has 126 places, 85 transitions, 485 flow [2022-01-19 04:58:49,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 70.0) internal successors, (560), 8 states have internal predecessors, (560), 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) [2022-01-19 04:58:49,025 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:58:49,025 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, 1, 1, 1] [2022-01-19 04:58:49,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 04:58:49,025 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 04:58:49,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:58:49,026 INFO L85 PathProgramCache]: Analyzing trace with hash 2121397217, now seen corresponding path program 1 times [2022-01-19 04:58:49,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:58:49,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63553778] [2022-01-19 04:58:49,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:58:49,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:58:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:58:49,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 04:58:49,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:58:49,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63553778] [2022-01-19 04:58:49,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63553778] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:58:49,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:58:49,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 04:58:49,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843406991] [2022-01-19 04:58:49,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:58:49,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 04:58:49,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:58:49,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 04:58:49,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 04:58:49,099 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 91 [2022-01-19 04:58:49,100 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 85 transitions, 485 flow. Second operand has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 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) [2022-01-19 04:58:49,100 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:58:49,100 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 91 [2022-01-19 04:58:49,100 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:58:49,277 INFO L129 PetriNetUnfolder]: 260/776 cut-off events. [2022-01-19 04:58:49,277 INFO L130 PetriNetUnfolder]: For 1047/1146 co-relation queries the response was YES. [2022-01-19 04:58:49,283 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1744 conditions, 776 events. 260/776 cut-off events. For 1047/1146 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 5384 event pairs, 6 based on Foata normal form. 18/720 useless extension candidates. Maximal degree in co-relation 1673. Up to 190 conditions per place. [2022-01-19 04:58:49,286 INFO L132 encePairwiseOnDemand]: 81/91 looper letters, 29 selfloop transitions, 17 changer transitions 0/117 dead transitions. [2022-01-19 04:58:49,286 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 117 transitions, 645 flow [2022-01-19 04:58:49,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 04:58:49,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 04:58:49,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 788 transitions. [2022-01-19 04:58:49,289 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.865934065934066 [2022-01-19 04:58:49,289 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 788 transitions. [2022-01-19 04:58:49,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 788 transitions. [2022-01-19 04:58:49,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:58:49,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 788 transitions. [2022-01-19 04:58:49,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 78.8) internal successors, (788), 10 states have internal predecessors, (788), 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) [2022-01-19 04:58:49,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 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) [2022-01-19 04:58:49,293 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 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) [2022-01-19 04:58:49,293 INFO L186 Difference]: Start difference. First operand has 126 places, 85 transitions, 485 flow. Second operand 10 states and 788 transitions. [2022-01-19 04:58:49,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 117 transitions, 645 flow [2022-01-19 04:58:49,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 117 transitions, 557 flow, removed 27 selfloop flow, removed 13 redundant places. [2022-01-19 04:58:49,300 INFO L242 Difference]: Finished difference. Result has 122 places, 100 transitions, 517 flow [2022-01-19 04:58:49,301 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=397, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=517, PETRI_PLACES=122, PETRI_TRANSITIONS=100} [2022-01-19 04:58:49,301 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 39 predicate places. [2022-01-19 04:58:49,301 INFO L470 AbstractCegarLoop]: Abstraction has has 122 places, 100 transitions, 517 flow [2022-01-19 04:58:49,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 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) [2022-01-19 04:58:49,302 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:58:49,302 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, 1, 1, 1, 1] [2022-01-19 04:58:49,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-19 04:58:49,302 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 04:58:49,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:58:49,303 INFO L85 PathProgramCache]: Analyzing trace with hash -509335992, now seen corresponding path program 1 times [2022-01-19 04:58:49,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:58:49,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965062718] [2022-01-19 04:58:49,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:58:49,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:58:49,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:58:49,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 04:58:49,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:58:49,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965062718] [2022-01-19 04:58:49,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965062718] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:58:49,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:58:49,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 04:58:49,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684841057] [2022-01-19 04:58:49,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:58:49,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 04:58:49,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:58:49,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 04:58:49,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 04:58:49,388 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 91 [2022-01-19 04:58:49,388 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 100 transitions, 517 flow. Second operand has 7 states, 7 states have (on average 75.57142857142857) internal successors, (529), 7 states have internal predecessors, (529), 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) [2022-01-19 04:58:49,389 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:58:49,389 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 91 [2022-01-19 04:58:49,389 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:58:49,622 INFO L129 PetriNetUnfolder]: 246/770 cut-off events. [2022-01-19 04:58:49,622 INFO L130 PetriNetUnfolder]: For 1829/1968 co-relation queries the response was YES. [2022-01-19 04:58:49,627 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2576 conditions, 770 events. 246/770 cut-off events. For 1829/1968 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 5620 event pairs, 0 based on Foata normal form. 66/787 useless extension candidates. Maximal degree in co-relation 2509. Up to 240 conditions per place. [2022-01-19 04:58:49,631 INFO L132 encePairwiseOnDemand]: 81/91 looper letters, 22 selfloop transitions, 32 changer transitions 13/138 dead transitions. [2022-01-19 04:58:49,631 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 138 transitions, 887 flow [2022-01-19 04:58:49,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-19 04:58:49,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-01-19 04:58:49,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1025 transitions. [2022-01-19 04:58:49,634 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8664412510566357 [2022-01-19 04:58:49,634 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1025 transitions. [2022-01-19 04:58:49,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1025 transitions. [2022-01-19 04:58:49,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:58:49,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1025 transitions. [2022-01-19 04:58:49,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 78.84615384615384) internal successors, (1025), 13 states have internal predecessors, (1025), 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) [2022-01-19 04:58:49,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 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) [2022-01-19 04:58:49,639 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 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) [2022-01-19 04:58:49,639 INFO L186 Difference]: Start difference. First operand has 122 places, 100 transitions, 517 flow. Second operand 13 states and 1025 transitions. [2022-01-19 04:58:49,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 138 transitions, 887 flow [2022-01-19 04:58:49,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 138 transitions, 859 flow, removed 11 selfloop flow, removed 4 redundant places. [2022-01-19 04:58:49,650 INFO L242 Difference]: Finished difference. Result has 134 places, 116 transitions, 692 flow [2022-01-19 04:58:49,650 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=692, PETRI_PLACES=134, PETRI_TRANSITIONS=116} [2022-01-19 04:58:49,651 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 51 predicate places. [2022-01-19 04:58:49,651 INFO L470 AbstractCegarLoop]: Abstraction has has 134 places, 116 transitions, 692 flow [2022-01-19 04:58:49,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.57142857142857) internal successors, (529), 7 states have internal predecessors, (529), 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) [2022-01-19 04:58:49,651 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:58:49,652 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, 1, 1, 1, 1, 1, 1] [2022-01-19 04:58:49,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-19 04:58:49,652 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 04:58:49,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:58:49,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1682813595, now seen corresponding path program 1 times [2022-01-19 04:58:49,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:58:49,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555775889] [2022-01-19 04:58:49,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:58:49,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:58:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:58:49,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 04:58:49,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:58:49,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555775889] [2022-01-19 04:58:49,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555775889] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:58:49,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:58:49,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 04:58:49,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622032293] [2022-01-19 04:58:49,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:58:49,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 04:58:49,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:58:49,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 04:58:49,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-19 04:58:49,732 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 91 [2022-01-19 04:58:49,733 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 116 transitions, 692 flow. Second operand has 8 states, 8 states have (on average 75.5) internal successors, (604), 8 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:58:49,733 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:58:49,733 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 91 [2022-01-19 04:58:49,733 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:58:49,998 INFO L129 PetriNetUnfolder]: 198/632 cut-off events. [2022-01-19 04:58:49,999 INFO L130 PetriNetUnfolder]: For 2481/2736 co-relation queries the response was YES. [2022-01-19 04:58:50,003 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2529 conditions, 632 events. 198/632 cut-off events. For 2481/2736 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 4720 event pairs, 0 based on Foata normal form. 71/650 useless extension candidates. Maximal degree in co-relation 2459. Up to 195 conditions per place. [2022-01-19 04:58:50,004 INFO L132 encePairwiseOnDemand]: 83/91 looper letters, 0 selfloop transitions, 0 changer transitions 123/123 dead transitions. [2022-01-19 04:58:50,004 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 123 transitions, 871 flow [2022-01-19 04:58:50,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-19 04:58:50,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-01-19 04:58:50,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1163 transitions. [2022-01-19 04:58:50,007 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.852014652014652 [2022-01-19 04:58:50,007 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1163 transitions. [2022-01-19 04:58:50,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1163 transitions. [2022-01-19 04:58:50,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:58:50,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1163 transitions. [2022-01-19 04:58:50,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 77.53333333333333) internal successors, (1163), 15 states have internal predecessors, (1163), 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) [2022-01-19 04:58:50,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 91.0) internal successors, (1456), 16 states have internal predecessors, (1456), 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) [2022-01-19 04:58:50,013 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 91.0) internal successors, (1456), 16 states have internal predecessors, (1456), 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) [2022-01-19 04:58:50,014 INFO L186 Difference]: Start difference. First operand has 134 places, 116 transitions, 692 flow. Second operand 15 states and 1163 transitions. [2022-01-19 04:58:50,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 123 transitions, 871 flow [2022-01-19 04:58:50,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 123 transitions, 700 flow, removed 58 selfloop flow, removed 15 redundant places. [2022-01-19 04:58:50,026 INFO L242 Difference]: Finished difference. Result has 124 places, 0 transitions, 0 flow [2022-01-19 04:58:50,026 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=0, PETRI_PLACES=124, PETRI_TRANSITIONS=0} [2022-01-19 04:58:50,027 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 41 predicate places. [2022-01-19 04:58:50,027 INFO L470 AbstractCegarLoop]: Abstraction has has 124 places, 0 transitions, 0 flow [2022-01-19 04:58:50,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 75.5) internal successors, (604), 8 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:58:50,029 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-19 04:58:50,030 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-19 04:58:50,030 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-19 04:58:50,030 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-19 04:58:50,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-19 04:58:50,033 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:58:50,035 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 04:58:50,035 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 04:58:50,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 04:58:50 BasicIcfg [2022-01-19 04:58:50,038 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 04:58:50,038 INFO L158 Benchmark]: Toolchain (without parser) took 4954.24ms. Allocated memory was 408.9MB in the beginning and 526.4MB in the end (delta: 117.4MB). Free memory was 352.2MB in the beginning and 467.4MB in the end (delta: -115.2MB). Peak memory consumption was 3.6MB. Max. memory is 16.0GB. [2022-01-19 04:58:50,038 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 408.9MB. Free memory was 369.8MB in the beginning and 369.6MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 04:58:50,039 INFO L158 Benchmark]: CACSL2BoogieTranslator took 449.02ms. Allocated memory was 408.9MB in the beginning and 526.4MB in the end (delta: 117.4MB). Free memory was 352.1MB in the beginning and 489.9MB in the end (delta: -137.8MB). Peak memory consumption was 13.4MB. Max. memory is 16.0GB. [2022-01-19 04:58:50,039 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.91ms. Allocated memory is still 526.4MB. Free memory was 489.9MB in the beginning and 487.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 04:58:50,039 INFO L158 Benchmark]: Boogie Preprocessor took 33.43ms. Allocated memory is still 526.4MB. Free memory was 487.8MB in the beginning and 486.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 04:58:50,040 INFO L158 Benchmark]: RCFGBuilder took 318.16ms. Allocated memory is still 526.4MB. Free memory was 486.3MB in the beginning and 473.8MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-19 04:58:50,040 INFO L158 Benchmark]: TraceAbstraction took 4088.72ms. Allocated memory is still 526.4MB. Free memory was 473.1MB in the beginning and 467.4MB in the end (delta: 5.7MB). Peak memory consumption was 7.8MB. Max. memory is 16.0GB. [2022-01-19 04:58:50,041 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 408.9MB. Free memory was 369.8MB in the beginning and 369.6MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 449.02ms. Allocated memory was 408.9MB in the beginning and 526.4MB in the end (delta: 117.4MB). Free memory was 352.1MB in the beginning and 489.9MB in the end (delta: -137.8MB). Peak memory consumption was 13.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 59.91ms. Allocated memory is still 526.4MB. Free memory was 489.9MB in the beginning and 487.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 33.43ms. Allocated memory is still 526.4MB. Free memory was 487.8MB in the beginning and 486.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 318.16ms. Allocated memory is still 526.4MB. Free memory was 486.3MB in the beginning and 473.8MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 4088.72ms. Allocated memory is still 526.4MB. Free memory was 473.1MB in the beginning and 467.4MB in the end (delta: 5.7MB). Peak memory consumption was 7.8MB. 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: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 114 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.0s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 482 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 482 mSDsluCounter, 605 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 559 mSDsCounter, 101 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 490 IncrementalHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 101 mSolverCounterUnsat, 144 mSDtfsCounter, 490 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=791occurred in iteration=4, InterpolantAutomatonStates: 105, 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, 0.9s InterpolantComputationTime, 472 NumberOfCodeBlocks, 472 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 464 ConstructedInterpolants, 0 QuantifiedInterpolants, 1930 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-19 04:58:50,078 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...