/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_40-traces-ex-6_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-18 23:29:38,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 23:29:38,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 23:29:39,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 23:29:39,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 23:29:39,050 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 23:29:39,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 23:29:39,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 23:29:39,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 23:29:39,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 23:29:39,057 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 23:29:39,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 23:29:39,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 23:29:39,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 23:29:39,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 23:29:39,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 23:29:39,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 23:29:39,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 23:29:39,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 23:29:39,062 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 23:29:39,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 23:29:39,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 23:29:39,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 23:29:39,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 23:29:39,067 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 23:29:39,069 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 23:29:39,069 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 23:29:39,070 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 23:29:39,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 23:29:39,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 23:29:39,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 23:29:39,071 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 23:29:39,071 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 23:29:39,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 23:29:39,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 23:29:39,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 23:29:39,075 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 23:29:39,091 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 23:29:39,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 23:29:39,092 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 23:29:39,092 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 23:29:39,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 23:29:39,092 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 23:29:39,092 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 23:29:39,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 23:29:39,092 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 23:29:39,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 23:29:39,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 23:29:39,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 23:29:39,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 23:29:39,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 23:29:39,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 23:29:39,093 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 23:29:39,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 23:29:39,093 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 23:29:39,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 23:29:39,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 23:29:39,093 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 23:29:39,093 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 23:29:39,094 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 23:29:39,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 23:29:39,094 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 23:29:39,094 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 23:29:39,094 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 23:29:39,094 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 23:29:39,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 23:29:39,094 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 23:29:39,094 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-18 23:29:39,094 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 23:29:39,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 23:29:39,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 23:29:39,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 23:29:39,285 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 23:29:39,286 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 23:29:39,286 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2022-01-18 23:29:39,322 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41d157fc9/81fcfb522f714f8e855b589d599d8762/FLAG2daddbf36 [2022-01-18 23:29:39,744 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 23:29:39,745 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2022-01-18 23:29:39,753 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41d157fc9/81fcfb522f714f8e855b589d599d8762/FLAG2daddbf36 [2022-01-18 23:29:39,762 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41d157fc9/81fcfb522f714f8e855b589d599d8762 [2022-01-18 23:29:39,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 23:29:39,764 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 23:29:39,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 23:29:39,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 23:29:39,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 23:29:39,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:29:39" (1/1) ... [2022-01-18 23:29:39,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2be71eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:29:39, skipping insertion in model container [2022-01-18 23:29:39,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:29:39" (1/1) ... [2022-01-18 23:29:39,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 23:29:39,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 23:29:39,954 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_40-traces-ex-6_true.i[1088,1101] [2022-01-18 23:29:40,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 23:29:40,049 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 23:29:40,056 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_40-traces-ex-6_true.i[1088,1101] [2022-01-18 23:29:40,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 23:29:40,108 INFO L208 MainTranslator]: Completed translation [2022-01-18 23:29:40,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:29:40 WrapperNode [2022-01-18 23:29:40,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 23:29:40,109 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 23:29:40,109 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 23:29:40,109 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 23:29:40,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:29:40" (1/1) ... [2022-01-18 23:29:40,121 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:29:40" (1/1) ... [2022-01-18 23:29:40,133 INFO L137 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2022-01-18 23:29:40,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 23:29:40,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 23:29:40,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 23:29:40,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 23:29:40,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:29:40" (1/1) ... [2022-01-18 23:29:40,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:29:40" (1/1) ... [2022-01-18 23:29:40,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:29:40" (1/1) ... [2022-01-18 23:29:40,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:29:40" (1/1) ... [2022-01-18 23:29:40,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:29:40" (1/1) ... [2022-01-18 23:29:40,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:29:40" (1/1) ... [2022-01-18 23:29:40,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:29:40" (1/1) ... [2022-01-18 23:29:40,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 23:29:40,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 23:29:40,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 23:29:40,147 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 23:29:40,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:29:40" (1/1) ... [2022-01-18 23:29:40,151 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 23:29:40,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:29:40,176 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 23:29:40,179 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 23:29:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 23:29:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-18 23:29:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 23:29:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 23:29:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-01-18 23:29:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-01-18 23:29:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 23:29:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 23:29:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 23:29:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 23:29:40,206 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 23:29:40,319 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 23:29:40,320 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 23:29:40,448 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 23:29:40,452 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 23:29:40,452 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 23:29:40,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:29:40 BoogieIcfgContainer [2022-01-18 23:29:40,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 23:29:40,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 23:29:40,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 23:29:40,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 23:29:40,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 11:29:39" (1/3) ... [2022-01-18 23:29:40,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3868982d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:29:40, skipping insertion in model container [2022-01-18 23:29:40,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:29:40" (2/3) ... [2022-01-18 23:29:40,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3868982d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:29:40, skipping insertion in model container [2022-01-18 23:29:40,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:29:40" (3/3) ... [2022-01-18 23:29:40,460 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_40-traces-ex-6_true.i [2022-01-18 23:29:40,463 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 23:29:40,464 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 23:29:40,464 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 23:29:40,491 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:40,491 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:40,491 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:40,491 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:40,492 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:40,492 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:40,492 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:40,492 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:40,493 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:40,493 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:40,494 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:40,494 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:40,494 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:40,495 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:40,496 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:40,496 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:40,496 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:40,496 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:40,497 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:40,497 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:40,502 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:40,502 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:40,502 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:40,502 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:40,502 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:40,503 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:29:40,504 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 23:29:40,540 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 23:29:40,544 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 23:29:40,544 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-18 23:29:40,550 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 67 transitions, 139 flow [2022-01-18 23:29:40,574 INFO L129 PetriNetUnfolder]: 1/66 cut-off events. [2022-01-18 23:29:40,574 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-18 23:29:40,576 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 66 events. 1/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 30 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 34. Up to 2 conditions per place. [2022-01-18 23:29:40,576 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 67 transitions, 139 flow [2022-01-18 23:29:40,582 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 56 transitions, 115 flow [2022-01-18 23:29:40,591 INFO L129 PetriNetUnfolder]: 0/55 cut-off events. [2022-01-18 23:29:40,591 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-18 23:29:40,591 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:29:40,592 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] [2022-01-18 23:29:40,592 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:29:40,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:29:40,595 INFO L85 PathProgramCache]: Analyzing trace with hash 412301319, now seen corresponding path program 1 times [2022-01-18 23:29:40,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:29:40,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427100599] [2022-01-18 23:29:40,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:29:40,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:29:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:29:40,787 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 23:29:40,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:29:40,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427100599] [2022-01-18 23:29:40,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427100599] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:29:40,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:29:40,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 23:29:40,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801802355] [2022-01-18 23:29:40,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:29:40,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 23:29:40,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:29:40,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 23:29:40,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 23:29:40,824 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 67 [2022-01-18 23:29:40,826 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 56 transitions, 115 flow. Second operand has 5 states, 5 states have (on average 57.2) internal successors, (286), 5 states have internal predecessors, (286), 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 23:29:40,826 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:29:40,826 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 67 [2022-01-18 23:29:40,827 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:29:40,870 INFO L129 PetriNetUnfolder]: 8/91 cut-off events. [2022-01-18 23:29:40,870 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-18 23:29:40,871 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 91 events. 8/91 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 148 event pairs, 0 based on Foata normal form. 3/93 useless extension candidates. Maximal degree in co-relation 86. Up to 10 conditions per place. [2022-01-18 23:29:40,872 INFO L132 encePairwiseOnDemand]: 61/67 looper letters, 8 selfloop transitions, 3 changer transitions 9/68 dead transitions. [2022-01-18 23:29:40,872 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 68 transitions, 179 flow [2022-01-18 23:29:40,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 23:29:40,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-18 23:29:40,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 414 transitions. [2022-01-18 23:29:40,882 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8827292110874201 [2022-01-18 23:29:40,883 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 414 transitions. [2022-01-18 23:29:40,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 414 transitions. [2022-01-18 23:29:40,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:29:40,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 414 transitions. [2022-01-18 23:29:40,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 59.142857142857146) internal successors, (414), 7 states have internal predecessors, (414), 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 23:29:40,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 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 23:29:40,907 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 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 23:29:40,908 INFO L186 Difference]: Start difference. First operand has 60 places, 56 transitions, 115 flow. Second operand 7 states and 414 transitions. [2022-01-18 23:29:40,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 68 transitions, 179 flow [2022-01-18 23:29:40,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 68 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-18 23:29:40,912 INFO L242 Difference]: Finished difference. Result has 70 places, 56 transitions, 133 flow [2022-01-18 23:29:40,913 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=133, PETRI_PLACES=70, PETRI_TRANSITIONS=56} [2022-01-18 23:29:40,915 INFO L334 CegarLoopForPetriNet]: 60 programPoint places, 10 predicate places. [2022-01-18 23:29:40,915 INFO L470 AbstractCegarLoop]: Abstraction has has 70 places, 56 transitions, 133 flow [2022-01-18 23:29:40,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.2) internal successors, (286), 5 states have internal predecessors, (286), 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 23:29:40,919 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:29:40,919 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] [2022-01-18 23:29:40,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 23:29:40,920 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:29:40,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:29:40,920 INFO L85 PathProgramCache]: Analyzing trace with hash -2088866876, now seen corresponding path program 1 times [2022-01-18 23:29:40,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:29:40,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117311242] [2022-01-18 23:29:40,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:29:40,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:29:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:29:41,022 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 23:29:41,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:29:41,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117311242] [2022-01-18 23:29:41,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117311242] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:29:41,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:29:41,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 23:29:41,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125462961] [2022-01-18 23:29:41,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:29:41,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 23:29:41,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:29:41,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 23:29:41,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 23:29:41,025 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 67 [2022-01-18 23:29:41,025 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 56 transitions, 133 flow. Second operand has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 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 23:29:41,025 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:29:41,025 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 67 [2022-01-18 23:29:41,025 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:29:41,072 INFO L129 PetriNetUnfolder]: 1/75 cut-off events. [2022-01-18 23:29:41,072 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-01-18 23:29:41,072 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 75 events. 1/75 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 60 event pairs, 1 based on Foata normal form. 5/80 useless extension candidates. Maximal degree in co-relation 114. Up to 12 conditions per place. [2022-01-18 23:29:41,072 INFO L132 encePairwiseOnDemand]: 61/67 looper letters, 14 selfloop transitions, 6 changer transitions 0/56 dead transitions. [2022-01-18 23:29:41,072 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 56 transitions, 173 flow [2022-01-18 23:29:41,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 23:29:41,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-18 23:29:41,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 247 transitions. [2022-01-18 23:29:41,073 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7373134328358208 [2022-01-18 23:29:41,074 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 247 transitions. [2022-01-18 23:29:41,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 247 transitions. [2022-01-18 23:29:41,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:29:41,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 247 transitions. [2022-01-18 23:29:41,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 49.4) internal successors, (247), 5 states have internal predecessors, (247), 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 23:29:41,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 67.0) internal successors, (402), 6 states have internal predecessors, (402), 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 23:29:41,075 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 67.0) internal successors, (402), 6 states have internal predecessors, (402), 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 23:29:41,075 INFO L186 Difference]: Start difference. First operand has 70 places, 56 transitions, 133 flow. Second operand 5 states and 247 transitions. [2022-01-18 23:29:41,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 56 transitions, 173 flow [2022-01-18 23:29:41,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 56 transitions, 159 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-01-18 23:29:41,077 INFO L242 Difference]: Finished difference. Result has 64 places, 56 transitions, 131 flow [2022-01-18 23:29:41,077 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=131, PETRI_PLACES=64, PETRI_TRANSITIONS=56} [2022-01-18 23:29:41,078 INFO L334 CegarLoopForPetriNet]: 60 programPoint places, 4 predicate places. [2022-01-18 23:29:41,078 INFO L470 AbstractCegarLoop]: Abstraction has has 64 places, 56 transitions, 131 flow [2022-01-18 23:29:41,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 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 23:29:41,078 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:29:41,078 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] [2022-01-18 23:29:41,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 23:29:41,078 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:29:41,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:29:41,079 INFO L85 PathProgramCache]: Analyzing trace with hash 35787268, now seen corresponding path program 2 times [2022-01-18 23:29:41,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:29:41,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855481691] [2022-01-18 23:29:41,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:29:41,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:29:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:29:41,143 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 23:29:41,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:29:41,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855481691] [2022-01-18 23:29:41,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855481691] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:29:41,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:29:41,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 23:29:41,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052396550] [2022-01-18 23:29:41,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:29:41,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 23:29:41,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:29:41,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 23:29:41,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 23:29:41,145 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 67 [2022-01-18 23:29:41,146 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 56 transitions, 131 flow. Second operand has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 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 23:29:41,146 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:29:41,146 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 67 [2022-01-18 23:29:41,146 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:29:41,184 INFO L129 PetriNetUnfolder]: 0/59 cut-off events. [2022-01-18 23:29:41,184 INFO L130 PetriNetUnfolder]: For 6/7 co-relation queries the response was YES. [2022-01-18 23:29:41,184 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 59 events. 0/59 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs, 0 based on Foata normal form. 1/60 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2022-01-18 23:29:41,184 INFO L132 encePairwiseOnDemand]: 62/67 looper letters, 0 selfloop transitions, 0 changer transitions 52/52 dead transitions. [2022-01-18 23:29:41,184 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 52 transitions, 165 flow [2022-01-18 23:29:41,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 23:29:41,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-18 23:29:41,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 247 transitions. [2022-01-18 23:29:41,185 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7373134328358208 [2022-01-18 23:29:41,185 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 247 transitions. [2022-01-18 23:29:41,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 247 transitions. [2022-01-18 23:29:41,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:29:41,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 247 transitions. [2022-01-18 23:29:41,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 49.4) internal successors, (247), 5 states have internal predecessors, (247), 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 23:29:41,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 67.0) internal successors, (402), 6 states have internal predecessors, (402), 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 23:29:41,187 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 67.0) internal successors, (402), 6 states have internal predecessors, (402), 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 23:29:41,187 INFO L186 Difference]: Start difference. First operand has 64 places, 56 transitions, 131 flow. Second operand 5 states and 247 transitions. [2022-01-18 23:29:41,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 52 transitions, 165 flow [2022-01-18 23:29:41,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 52 transitions, 154 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-18 23:29:41,188 INFO L242 Difference]: Finished difference. Result has 59 places, 0 transitions, 0 flow [2022-01-18 23:29:41,188 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=59, PETRI_TRANSITIONS=0} [2022-01-18 23:29:41,189 INFO L334 CegarLoopForPetriNet]: 60 programPoint places, -1 predicate places. [2022-01-18 23:29:41,189 INFO L470 AbstractCegarLoop]: Abstraction has has 59 places, 0 transitions, 0 flow [2022-01-18 23:29:41,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 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 23:29:41,191 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-18 23:29:41,191 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-01-18 23:29:41,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 23:29:41,193 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1] [2022-01-18 23:29:41,194 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 23:29:41,194 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 23:29:41,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 11:29:41 BasicIcfg [2022-01-18 23:29:41,196 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 23:29:41,197 INFO L158 Benchmark]: Toolchain (without parser) took 1432.55ms. Allocated memory is still 413.1MB. Free memory was 358.9MB in the beginning and 337.1MB in the end (delta: 21.8MB). Peak memory consumption was 24.0MB. Max. memory is 16.0GB. [2022-01-18 23:29:41,197 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 413.1MB. Free memory is still 376.5MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 23:29:41,197 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.71ms. Allocated memory is still 413.1MB. Free memory was 358.7MB in the beginning and 378.3MB in the end (delta: -19.6MB). Peak memory consumption was 16.2MB. Max. memory is 16.0GB. [2022-01-18 23:29:41,198 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.86ms. Allocated memory is still 413.1MB. Free memory was 377.9MB in the beginning and 376.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 23:29:41,198 INFO L158 Benchmark]: Boogie Preprocessor took 12.55ms. Allocated memory is still 413.1MB. Free memory was 376.2MB in the beginning and 374.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 23:29:41,198 INFO L158 Benchmark]: RCFGBuilder took 306.97ms. Allocated memory is still 413.1MB. Free memory was 374.9MB in the beginning and 363.6MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2022-01-18 23:29:41,198 INFO L158 Benchmark]: TraceAbstraction took 742.37ms. Allocated memory is still 413.1MB. Free memory was 363.2MB in the beginning and 337.1MB in the end (delta: 26.1MB). Peak memory consumption was 28.8MB. Max. memory is 16.0GB. [2022-01-18 23:29:41,200 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 413.1MB. Free memory is still 376.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 343.71ms. Allocated memory is still 413.1MB. Free memory was 358.7MB in the beginning and 378.3MB in the end (delta: -19.6MB). Peak memory consumption was 16.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 23.86ms. Allocated memory is still 413.1MB. Free memory was 377.9MB in the beginning and 376.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 12.55ms. Allocated memory is still 413.1MB. Free memory was 376.2MB in the beginning and 374.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 306.97ms. Allocated memory is still 413.1MB. Free memory was 374.9MB in the beginning and 363.6MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 742.37ms. Allocated memory is still 413.1MB. Free memory was 363.2MB in the beginning and 337.1MB in the end (delta: 26.1MB). Peak memory consumption was 28.8MB. 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: 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, 80 locations, 2 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: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 98 IncrementalHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 14 mSDtfsCounter, 98 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred 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, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 144 ConstructedInterpolants, 0 QuantifiedInterpolants, 475 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-18 23:29:41,236 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...