/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-18 23:29:57,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 23:29:57,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 23:29:58,032 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 23:29:58,033 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 23:29:58,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 23:29:58,036 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 23:29:58,039 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 23:29:58,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 23:29:58,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 23:29:58,051 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 23:29:58,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 23:29:58,052 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 23:29:58,053 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 23:29:58,054 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 23:29:58,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 23:29:58,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 23:29:58,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 23:29:58,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 23:29:58,063 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 23:29:58,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 23:29:58,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 23:29:58,065 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 23:29:58,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 23:29:58,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 23:29:58,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 23:29:58,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 23:29:58,074 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 23:29:58,075 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 23:29:58,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 23:29:58,076 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 23:29:58,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 23:29:58,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 23:29:58,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 23:29:58,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 23:29:58,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 23:29:58,078 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-01-18 23:29:58,099 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 23:29:58,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 23:29:58,100 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 23:29:58,100 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 23:29:58,100 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 23:29:58,100 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 23:29:58,100 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 23:29:58,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 23:29:58,100 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 23:29:58,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 23:29:58,101 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 23:29:58,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 23:29:58,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 23:29:58,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 23:29:58,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 23:29:58,101 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 23:29:58,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 23:29:58,102 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 23:29:58,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 23:29:58,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 23:29:58,102 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 23:29:58,102 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 23:29:58,102 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 23:29:58,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 23:29:58,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 23:29:58,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 23:29:58,102 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 23:29:58,103 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 23:29:58,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 23:29:58,103 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 23:29:58,103 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-18 23:29:58,103 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 23:29:58,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 23:29:58,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 23:29:58,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 23:29:58,309 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 23:29:58,309 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 23:29:58,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i [2022-01-18 23:29:58,375 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e10f622e0/11c2a90d955746ceb4a3af043130a684/FLAGd4e8cefb6 [2022-01-18 23:29:58,769 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 23:29:58,769 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i [2022-01-18 23:29:58,778 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e10f622e0/11c2a90d955746ceb4a3af043130a684/FLAGd4e8cefb6 [2022-01-18 23:29:59,169 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e10f622e0/11c2a90d955746ceb4a3af043130a684 [2022-01-18 23:29:59,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 23:29:59,171 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 23:29:59,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 23:29:59,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 23:29:59,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 23:29:59,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:29:59" (1/1) ... [2022-01-18 23:29:59,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a78db5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:29:59, skipping insertion in model container [2022-01-18 23:29:59,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:29:59" (1/1) ... [2022-01-18 23:29:59,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 23:29:59,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 23:29:59,382 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i[1089,1102] [2022-01-18 23:29:59,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 23:29:59,522 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 23:29:59,530 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i[1089,1102] [2022-01-18 23:29:59,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 23:29:59,582 INFO L208 MainTranslator]: Completed translation [2022-01-18 23:29:59,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:29:59 WrapperNode [2022-01-18 23:29:59,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 23:29:59,583 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 23:29:59,583 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 23:29:59,583 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 23:29:59,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:29:59" (1/1) ... [2022-01-18 23:29:59,613 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:29:59" (1/1) ... [2022-01-18 23:29:59,630 INFO L137 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2022-01-18 23:29:59,631 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 23:29:59,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 23:29:59,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 23:29:59,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 23:29:59,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:29:59" (1/1) ... [2022-01-18 23:29:59,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:29:59" (1/1) ... [2022-01-18 23:29:59,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:29:59" (1/1) ... [2022-01-18 23:29:59,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:29:59" (1/1) ... [2022-01-18 23:29:59,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:29:59" (1/1) ... [2022-01-18 23:29:59,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:29:59" (1/1) ... [2022-01-18 23:29:59,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:29:59" (1/1) ... [2022-01-18 23:29:59,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 23:29:59,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 23:29:59,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 23:29:59,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 23:29:59,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:29:59" (1/1) ... [2022-01-18 23:29:59,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 23:29:59,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:29:59,693 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 23:29:59,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 23:29:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 23:29:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-18 23:29:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 23:29:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 23:29:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-01-18 23:29:59,728 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-01-18 23:29:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 23:29:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 23:29:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 23:29:59,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 23:29:59,729 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 23:29:59,788 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 23:29:59,789 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 23:29:59,920 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 23:29:59,925 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 23:29:59,925 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 23:29:59,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:29:59 BoogieIcfgContainer [2022-01-18 23:29:59,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 23:29:59,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 23:29:59,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 23:29:59,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 23:29:59,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 11:29:59" (1/3) ... [2022-01-18 23:29:59,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@297bf5c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:29:59, skipping insertion in model container [2022-01-18 23:29:59,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:29:59" (2/3) ... [2022-01-18 23:29:59,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@297bf5c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:29:59, skipping insertion in model container [2022-01-18 23:29:59,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:29:59" (3/3) ... [2022-01-18 23:29:59,931 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_44-traces-mine2_true.i [2022-01-18 23:29:59,934 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 23:29:59,934 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-18 23:29:59,934 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 23:29:59,952 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:59,952 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:59,952 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:59,953 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:59,953 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:59,953 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:59,953 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:59,953 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:59,953 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:59,954 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:59,954 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:59,954 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:59,954 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:59,954 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:59,955 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:59,955 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:59,955 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:59,955 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:59,956 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:59,956 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:59,958 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:59,958 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:59,958 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:59,958 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:59,958 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:59,958 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:59,960 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 23:29:59,987 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 23:29:59,996 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 23:29:59,996 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-18 23:30:00,003 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 77 transitions, 159 flow [2022-01-18 23:30:00,031 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2022-01-18 23:30:00,031 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-18 23:30:00,033 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2022-01-18 23:30:00,034 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 77 transitions, 159 flow [2022-01-18 23:30:00,037 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 66 transitions, 135 flow [2022-01-18 23:30:00,048 INFO L129 PetriNetUnfolder]: 1/54 cut-off events. [2022-01-18 23:30:00,048 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-18 23:30:00,048 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:30:00,049 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:30:00,049 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:30:00,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:30:00,053 INFO L85 PathProgramCache]: Analyzing trace with hash 47225093, now seen corresponding path program 1 times [2022-01-18 23:30:00,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:30:00,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021865723] [2022-01-18 23:30:00,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:30:00,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:30:00,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:30:00,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:30:00,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:30:00,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021865723] [2022-01-18 23:30:00,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021865723] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:30:00,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:30:00,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 23:30:00,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537673617] [2022-01-18 23:30:00,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:30:00,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 23:30:00,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:30:00,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 23:30:00,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 23:30:00,271 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 77 [2022-01-18 23:30:00,273 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 66 transitions, 135 flow. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:30:00,274 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:30:00,274 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 77 [2022-01-18 23:30:00,274 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:30:00,360 INFO L129 PetriNetUnfolder]: 36/208 cut-off events. [2022-01-18 23:30:00,360 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-18 23:30:00,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 309 conditions, 208 events. 36/208 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 810 event pairs, 7 based on Foata normal form. 7/212 useless extension candidates. Maximal degree in co-relation 270. Up to 24 conditions per place. [2022-01-18 23:30:00,363 INFO L132 encePairwiseOnDemand]: 65/77 looper letters, 21 selfloop transitions, 13 changer transitions 9/93 dead transitions. [2022-01-18 23:30:00,363 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 93 transitions, 275 flow [2022-01-18 23:30:00,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 23:30:00,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-18 23:30:00,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 571 transitions. [2022-01-18 23:30:00,373 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.823953823953824 [2022-01-18 23:30:00,374 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 571 transitions. [2022-01-18 23:30:00,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 571 transitions. [2022-01-18 23:30:00,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:30:00,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 571 transitions. [2022-01-18 23:30:00,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 63.44444444444444) internal successors, (571), 9 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:30:00,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 77.0) internal successors, (770), 10 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:30:00,384 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 77.0) internal successors, (770), 10 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:30:00,385 INFO L186 Difference]: Start difference. First operand has 69 places, 66 transitions, 135 flow. Second operand 9 states and 571 transitions. [2022-01-18 23:30:00,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 93 transitions, 275 flow [2022-01-18 23:30:00,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 93 transitions, 274 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-18 23:30:00,390 INFO L242 Difference]: Finished difference. Result has 82 places, 73 transitions, 222 flow [2022-01-18 23:30:00,391 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=222, PETRI_PLACES=82, PETRI_TRANSITIONS=73} [2022-01-18 23:30:00,393 INFO L334 CegarLoopForPetriNet]: 69 programPoint places, 13 predicate places. [2022-01-18 23:30:00,393 INFO L470 AbstractCegarLoop]: Abstraction has has 82 places, 73 transitions, 222 flow [2022-01-18 23:30:00,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:30:00,394 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:30:00,394 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] [2022-01-18 23:30:00,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 23:30:00,394 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:30:00,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:30:00,395 INFO L85 PathProgramCache]: Analyzing trace with hash 212203783, now seen corresponding path program 1 times [2022-01-18 23:30:00,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:30:00,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631060003] [2022-01-18 23:30:00,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:30:00,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:30:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:30:00,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:30:00,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:30:00,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631060003] [2022-01-18 23:30:00,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631060003] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:30:00,449 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:30:00,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 23:30:00,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410088970] [2022-01-18 23:30:00,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:30:00,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 23:30:00,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:30:00,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 23:30:00,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 23:30:00,451 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 77 [2022-01-18 23:30:00,452 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 73 transitions, 222 flow. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:30:00,452 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:30:00,452 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 77 [2022-01-18 23:30:00,452 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:30:00,483 INFO L129 PetriNetUnfolder]: 3/125 cut-off events. [2022-01-18 23:30:00,483 INFO L130 PetriNetUnfolder]: For 26/27 co-relation queries the response was YES. [2022-01-18 23:30:00,483 INFO L84 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 125 events. 3/125 cut-off events. For 26/27 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 276 event pairs, 0 based on Foata normal form. 5/130 useless extension candidates. Maximal degree in co-relation 165. Up to 19 conditions per place. [2022-01-18 23:30:00,484 INFO L132 encePairwiseOnDemand]: 73/77 looper letters, 9 selfloop transitions, 4 changer transitions 5/71 dead transitions. [2022-01-18 23:30:00,484 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 71 transitions, 233 flow [2022-01-18 23:30:00,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 23:30:00,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-18 23:30:00,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2022-01-18 23:30:00,485 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8528138528138528 [2022-01-18 23:30:00,485 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 197 transitions. [2022-01-18 23:30:00,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 197 transitions. [2022-01-18 23:30:00,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:30:00,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 197 transitions. [2022-01-18 23:30:00,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:30:00,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:30:00,487 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:30:00,487 INFO L186 Difference]: Start difference. First operand has 82 places, 73 transitions, 222 flow. Second operand 3 states and 197 transitions. [2022-01-18 23:30:00,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 71 transitions, 233 flow [2022-01-18 23:30:00,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 71 transitions, 219 flow, removed 7 selfloop flow, removed 2 redundant places. [2022-01-18 23:30:00,490 INFO L242 Difference]: Finished difference. Result has 80 places, 66 transitions, 175 flow [2022-01-18 23:30:00,490 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=175, PETRI_PLACES=80, PETRI_TRANSITIONS=66} [2022-01-18 23:30:00,491 INFO L334 CegarLoopForPetriNet]: 69 programPoint places, 11 predicate places. [2022-01-18 23:30:00,491 INFO L470 AbstractCegarLoop]: Abstraction has has 80 places, 66 transitions, 175 flow [2022-01-18 23:30:00,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:30:00,491 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:30:00,491 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] [2022-01-18 23:30:00,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 23:30:00,492 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:30:00,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:30:00,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1612742903, now seen corresponding path program 1 times [2022-01-18 23:30:00,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:30:00,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512072605] [2022-01-18 23:30:00,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:30:00,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:30:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:30:00,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:30:00,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:30:00,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512072605] [2022-01-18 23:30:00,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512072605] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:30:00,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:30:00,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 23:30:00,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68073449] [2022-01-18 23:30:00,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:30:00,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 23:30:00,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:30:00,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 23:30:00,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 23:30:00,592 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 77 [2022-01-18 23:30:00,592 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 66 transitions, 175 flow. Second operand has 6 states, 6 states have (on average 56.833333333333336) internal successors, (341), 6 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:30:00,592 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:30:00,592 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 77 [2022-01-18 23:30:00,592 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:30:00,651 INFO L129 PetriNetUnfolder]: 0/46 cut-off events. [2022-01-18 23:30:00,651 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-01-18 23:30:00,651 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 46 events. 0/46 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 1/47 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2022-01-18 23:30:00,651 INFO L132 encePairwiseOnDemand]: 73/77 looper letters, 0 selfloop transitions, 0 changer transitions 46/46 dead transitions. [2022-01-18 23:30:00,651 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 46 transitions, 146 flow [2022-01-18 23:30:00,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 23:30:00,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-18 23:30:00,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 288 transitions. [2022-01-18 23:30:00,653 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7480519480519481 [2022-01-18 23:30:00,654 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 288 transitions. [2022-01-18 23:30:00,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 288 transitions. [2022-01-18 23:30:00,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:30:00,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 288 transitions. [2022-01-18 23:30:00,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 57.6) internal successors, (288), 5 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:30:00,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 77.0) internal successors, (462), 6 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:30:00,656 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 77.0) internal successors, (462), 6 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:30:00,656 INFO L186 Difference]: Start difference. First operand has 80 places, 66 transitions, 175 flow. Second operand 5 states and 288 transitions. [2022-01-18 23:30:00,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 46 transitions, 146 flow [2022-01-18 23:30:00,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 46 transitions, 131 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-01-18 23:30:00,657 INFO L242 Difference]: Finished difference. Result has 57 places, 0 transitions, 0 flow [2022-01-18 23:30:00,657 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=57, PETRI_TRANSITIONS=0} [2022-01-18 23:30:00,658 INFO L334 CegarLoopForPetriNet]: 69 programPoint places, -12 predicate places. [2022-01-18 23:30:00,658 INFO L470 AbstractCegarLoop]: Abstraction has has 57 places, 0 transitions, 0 flow [2022-01-18 23:30:00,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.833333333333336) internal successors, (341), 6 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:30:00,660 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-18 23:30:00,660 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-18 23:30:00,660 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 3 remaining) [2022-01-18 23:30:00,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 23:30:00,663 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-18 23:30:00,666 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 23:30:00,667 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 23:30:00,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 11:30:00 BasicIcfg [2022-01-18 23:30:00,673 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 23:30:00,675 INFO L158 Benchmark]: Toolchain (without parser) took 1501.67ms. Allocated memory was 446.7MB in the beginning and 559.9MB in the end (delta: 113.2MB). Free memory was 387.1MB in the beginning and 424.0MB in the end (delta: -36.9MB). Peak memory consumption was 75.3MB. Max. memory is 16.0GB. [2022-01-18 23:30:00,675 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 446.7MB. Free memory is still 405.2MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 23:30:00,677 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.08ms. Allocated memory was 446.7MB in the beginning and 559.9MB in the end (delta: 113.2MB). Free memory was 386.9MB in the beginning and 520.5MB in the end (delta: -133.5MB). Peak memory consumption was 6.7MB. Max. memory is 16.0GB. [2022-01-18 23:30:00,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.64ms. Allocated memory is still 559.9MB. Free memory was 520.5MB in the beginning and 519.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 23:30:00,679 INFO L158 Benchmark]: Boogie Preprocessor took 26.61ms. Allocated memory is still 559.9MB. Free memory was 519.4MB in the beginning and 517.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 23:30:00,679 INFO L158 Benchmark]: RCFGBuilder took 267.53ms. Allocated memory is still 559.9MB. Free memory was 517.3MB in the beginning and 503.7MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-18 23:30:00,679 INFO L158 Benchmark]: TraceAbstraction took 745.65ms. Allocated memory is still 559.9MB. Free memory was 502.6MB in the beginning and 424.0MB in the end (delta: 78.6MB). Peak memory consumption was 77.6MB. Max. memory is 16.0GB. [2022-01-18 23:30:00,682 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 446.7MB. Free memory is still 405.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 405.08ms. Allocated memory was 446.7MB in the beginning and 559.9MB in the end (delta: 113.2MB). Free memory was 386.9MB in the beginning and 520.5MB in the end (delta: -133.5MB). Peak memory consumption was 6.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 47.64ms. Allocated memory is still 559.9MB. Free memory was 520.5MB in the beginning and 519.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.61ms. Allocated memory is still 559.9MB. Free memory was 519.4MB in the beginning and 517.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 267.53ms. Allocated memory is still 559.9MB. Free memory was 517.3MB in the beginning and 503.7MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 745.65ms. Allocated memory is still 559.9MB. Free memory was 502.6MB in the beginning and 424.0MB in the end (delta: 78.6MB). Peak memory consumption was 77.6MB. 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: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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 3 procedures, 90 locations, 3 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: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 61 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 101 IncrementalHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 28 mSDtfsCounter, 101 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred in iteration=1, InterpolantAutomatonStates: 17, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 135 ConstructedInterpolants, 0 QuantifiedInterpolants, 375 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-18 23:30:00,710 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...