/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-Before.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 05:46:43,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 05:46:43,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 05:46:44,045 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 05:46:44,045 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 05:46:44,046 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 05:46:44,047 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 05:46:44,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 05:46:44,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 05:46:44,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 05:46:44,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 05:46:44,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 05:46:44,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 05:46:44,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 05:46:44,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 05:46:44,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 05:46:44,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 05:46:44,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 05:46:44,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 05:46:44,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 05:46:44,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 05:46:44,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 05:46:44,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 05:46:44,097 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 05:46:44,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-19 05:46:44,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 05:46:44,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 05:46:44,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 05:46:44,109 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-Before.epf [2022-01-19 05:46:44,137 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 05:46:44,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 05:46:44,138 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 05:46:44,139 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 05:46:44,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 05:46:44,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 05:46:44,139 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 05:46:44,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 05:46:44,140 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 05:46:44,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 05:46:44,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 05:46:44,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 05:46:44,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 05:46:44,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 05:46:44,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 05:46:44,141 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 05:46:44,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 05:46:44,141 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 05:46:44,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 05:46:44,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 05:46:44,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 05:46:44,143 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 05:46:44,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 05:46:44,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 05:46:44,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 05:46:44,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 05:46:44,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 05:46:44,144 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 05:46:44,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 05:46:44,144 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 05:46:44,145 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 05:46:44,146 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 05:46:44,146 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 05:46:44,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 05:46:44,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 05:46:44,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 05:46:44,363 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 05:46:44,363 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 05:46:44,364 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2022-01-19 05:46:44,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d88e1d1de/40ae89763c87409abfd000680848a42a/FLAG67501c64a [2022-01-19 05:46:44,748 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 05:46:44,749 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2022-01-19 05:46:44,764 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d88e1d1de/40ae89763c87409abfd000680848a42a/FLAG67501c64a [2022-01-19 05:46:45,136 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d88e1d1de/40ae89763c87409abfd000680848a42a [2022-01-19 05:46:45,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 05:46:45,139 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 05:46:45,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 05:46:45,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 05:46:45,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 05:46:45,144 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 05:46:45" (1/1) ... [2022-01-19 05:46:45,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@151b3730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:45, skipping insertion in model container [2022-01-19 05:46:45,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 05:46:45" (1/1) ... [2022-01-19 05:46:45,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 05:46:45,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 05:46:45,329 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_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2022-01-19 05:46:45,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 05:46:45,436 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 05:46:45,448 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_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2022-01-19 05:46:45,485 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 05:46:45,516 INFO L208 MainTranslator]: Completed translation [2022-01-19 05:46:45,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:45 WrapperNode [2022-01-19 05:46:45,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 05:46:45,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 05:46:45,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 05:46:45,519 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 05:46:45,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:45" (1/1) ... [2022-01-19 05:46:45,548 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:45" (1/1) ... [2022-01-19 05:46:45,578 INFO L137 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2022-01-19 05:46:45,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 05:46:45,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 05:46:45,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 05:46:45,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 05:46:45,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:45" (1/1) ... [2022-01-19 05:46:45,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:45" (1/1) ... [2022-01-19 05:46:45,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:45" (1/1) ... [2022-01-19 05:46:45,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:45" (1/1) ... [2022-01-19 05:46:45,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:45" (1/1) ... [2022-01-19 05:46:45,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:45" (1/1) ... [2022-01-19 05:46:45,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:45" (1/1) ... [2022-01-19 05:46:45,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 05:46:45,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 05:46:45,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 05:46:45,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 05:46:45,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:45" (1/1) ... [2022-01-19 05:46:45,612 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 05:46:45,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:46:45,630 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-19 05:46:45,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-19 05:46:45,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 05:46:45,672 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-19 05:46:45,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 05:46:45,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 05:46:45,672 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-01-19 05:46:45,672 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-01-19 05:46:45,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 05:46:45,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 05:46:45,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 05:46:45,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 05:46:45,674 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 05:46:45,779 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 05:46:45,780 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 05:46:45,898 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 05:46:45,903 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 05:46:45,903 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 05:46:45,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 05:46:45 BoogieIcfgContainer [2022-01-19 05:46:45,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 05:46:45,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 05:46:45,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 05:46:45,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 05:46:45,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 05:46:45" (1/3) ... [2022-01-19 05:46:45,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@485b7545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 05:46:45, skipping insertion in model container [2022-01-19 05:46:45,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:45" (2/3) ... [2022-01-19 05:46:45,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@485b7545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 05:46:45, skipping insertion in model container [2022-01-19 05:46:45,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 05:46:45" (3/3) ... [2022-01-19 05:46:45,911 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_pos.i [2022-01-19 05:46:45,914 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 05:46:45,914 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 05:46:45,914 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 05:46:45,938 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:45,944 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:45,944 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:45,944 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:45,944 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:45,944 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:45,944 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:45,944 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:45,945 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:45,945 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:45,945 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:45,945 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:45,945 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:45,946 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:45,946 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:45,946 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:45,946 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:45,946 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:45,946 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:45,947 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:45,949 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:45,949 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:45,949 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:45,949 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:45,949 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:45,949 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:45,951 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-19 05:46:45,981 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 05:46:45,986 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 05:46:45,986 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-19 05:46:45,995 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 66 transitions, 137 flow [2022-01-19 05:46:46,028 INFO L129 PetriNetUnfolder]: 1/65 cut-off events. [2022-01-19 05:46:46,028 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 05:46:46,030 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 65 events. 1/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2022-01-19 05:46:46,030 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 66 transitions, 137 flow [2022-01-19 05:46:46,033 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 55 transitions, 113 flow [2022-01-19 05:46:46,046 INFO L129 PetriNetUnfolder]: 0/54 cut-off events. [2022-01-19 05:46:46,047 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 05:46:46,047 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:46:46,047 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] [2022-01-19 05:46:46,048 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 05:46:46,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:46:46,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1593244809, now seen corresponding path program 1 times [2022-01-19 05:46:46,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:46:46,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36095847] [2022-01-19 05:46:46,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:46:46,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:46:46,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:46:46,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:46:46,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:46:46,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36095847] [2022-01-19 05:46:46,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36095847] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:46:46,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:46:46,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 05:46:46,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869626193] [2022-01-19 05:46:46,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:46:46,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 05:46:46,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:46:46,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 05:46:46,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 05:46:46,386 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 66 [2022-01-19 05:46:46,391 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 55 transitions, 113 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) [2022-01-19 05:46:46,391 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:46:46,391 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 66 [2022-01-19 05:46:46,392 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:46:46,454 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2022-01-19 05:46:46,454 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-19 05:46:46,454 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 71 events. 2/71 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 77 event pairs, 0 based on Foata normal form. 2/73 useless extension candidates. Maximal degree in co-relation 52. Up to 6 conditions per place. [2022-01-19 05:46:46,455 INFO L132 encePairwiseOnDemand]: 61/66 looper letters, 5 selfloop transitions, 2 changer transitions 7/62 dead transitions. [2022-01-19 05:46:46,455 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 62 transitions, 155 flow [2022-01-19 05:46:46,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 05:46:46,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 05:46:46,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 408 transitions. [2022-01-19 05:46:46,467 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8831168831168831 [2022-01-19 05:46:46,467 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 408 transitions. [2022-01-19 05:46:46,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 408 transitions. [2022-01-19 05:46:46,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:46:46,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 408 transitions. [2022-01-19 05:46:46,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 58.285714285714285) internal successors, (408), 7 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:46,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:46,477 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:46,479 INFO L186 Difference]: Start difference. First operand has 59 places, 55 transitions, 113 flow. Second operand 7 states and 408 transitions. [2022-01-19 05:46:46,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 62 transitions, 155 flow [2022-01-19 05:46:46,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 62 transitions, 154 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 05:46:46,483 INFO L242 Difference]: Finished difference. Result has 69 places, 55 transitions, 128 flow [2022-01-19 05:46:46,484 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=128, PETRI_PLACES=69, PETRI_TRANSITIONS=55} [2022-01-19 05:46:46,486 INFO L334 CegarLoopForPetriNet]: 59 programPoint places, 10 predicate places. [2022-01-19 05:46:46,486 INFO L470 AbstractCegarLoop]: Abstraction has has 69 places, 55 transitions, 128 flow [2022-01-19 05:46:46,486 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) [2022-01-19 05:46:46,486 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:46:46,487 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] [2022-01-19 05:46:46,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 05:46:46,487 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 05:46:46,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:46:46,487 INFO L85 PathProgramCache]: Analyzing trace with hash 982120582, now seen corresponding path program 1 times [2022-01-19 05:46:46,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:46:46,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505001777] [2022-01-19 05:46:46,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:46:46,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:46:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:46:46,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:46:46,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:46:46,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505001777] [2022-01-19 05:46:46,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505001777] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:46:46,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:46:46,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 05:46:46,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875032682] [2022-01-19 05:46:46,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:46:46,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 05:46:46,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:46:46,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 05:46:46,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-19 05:46:46,587 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 66 [2022-01-19 05:46:46,588 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 55 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 47.0) internal successors, (282), 6 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:46,588 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:46:46,588 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 66 [2022-01-19 05:46:46,588 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:46:46,675 INFO L129 PetriNetUnfolder]: 1/69 cut-off events. [2022-01-19 05:46:46,675 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 05:46:46,676 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 69 events. 1/69 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 1 based on Foata normal form. 5/74 useless extension candidates. Maximal degree in co-relation 104. Up to 11 conditions per place. [2022-01-19 05:46:46,676 INFO L132 encePairwiseOnDemand]: 60/66 looper letters, 14 selfloop transitions, 6 changer transitions 0/55 dead transitions. [2022-01-19 05:46:46,677 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 55 transitions, 168 flow [2022-01-19 05:46:46,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 05:46:46,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 05:46:46,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 242 transitions. [2022-01-19 05:46:46,679 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2022-01-19 05:46:46,679 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 242 transitions. [2022-01-19 05:46:46,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 242 transitions. [2022-01-19 05:46:46,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:46:46,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 242 transitions. [2022-01-19 05:46:46,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:46,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 66.0) internal successors, (396), 6 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:46,682 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 66.0) internal successors, (396), 6 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:46,682 INFO L186 Difference]: Start difference. First operand has 69 places, 55 transitions, 128 flow. Second operand 5 states and 242 transitions. [2022-01-19 05:46:46,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 55 transitions, 168 flow [2022-01-19 05:46:46,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 55 transitions, 156 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-01-19 05:46:46,684 INFO L242 Difference]: Finished difference. Result has 63 places, 55 transitions, 128 flow [2022-01-19 05:46:46,685 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=128, PETRI_PLACES=63, PETRI_TRANSITIONS=55} [2022-01-19 05:46:46,685 INFO L334 CegarLoopForPetriNet]: 59 programPoint places, 4 predicate places. [2022-01-19 05:46:46,686 INFO L470 AbstractCegarLoop]: Abstraction has has 63 places, 55 transitions, 128 flow [2022-01-19 05:46:46,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 47.0) internal successors, (282), 6 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:46,686 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:46:46,686 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] [2022-01-19 05:46:46,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 05:46:46,686 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 05:46:46,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:46:46,687 INFO L85 PathProgramCache]: Analyzing trace with hash -144193612, now seen corresponding path program 2 times [2022-01-19 05:46:46,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:46:46,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525249609] [2022-01-19 05:46:46,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:46:46,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:46:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:46:46,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:46:46,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:46:46,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525249609] [2022-01-19 05:46:46,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525249609] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:46:46,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:46:46,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 05:46:46,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623662282] [2022-01-19 05:46:46,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:46:46,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 05:46:46,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:46:46,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 05:46:46,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-19 05:46:46,810 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 66 [2022-01-19 05:46:46,811 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 55 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 47.0) internal successors, (282), 6 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:46,811 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:46:46,811 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 66 [2022-01-19 05:46:46,811 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:46:46,879 INFO L129 PetriNetUnfolder]: 0/63 cut-off events. [2022-01-19 05:46:46,879 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-01-19 05:46:46,880 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 63 events. 0/63 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 1/64 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2022-01-19 05:46:46,881 INFO L132 encePairwiseOnDemand]: 61/66 looper letters, 15 selfloop transitions, 5 changer transitions 1/56 dead transitions. [2022-01-19 05:46:46,881 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 56 transitions, 174 flow [2022-01-19 05:46:46,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 05:46:46,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 05:46:46,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 242 transitions. [2022-01-19 05:46:46,883 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2022-01-19 05:46:46,883 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 242 transitions. [2022-01-19 05:46:46,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 242 transitions. [2022-01-19 05:46:46,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:46:46,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 242 transitions. [2022-01-19 05:46:46,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:46,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 66.0) internal successors, (396), 6 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:46,888 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 66.0) internal successors, (396), 6 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:46,888 INFO L186 Difference]: Start difference. First operand has 63 places, 55 transitions, 128 flow. Second operand 5 states and 242 transitions. [2022-01-19 05:46:46,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 56 transitions, 174 flow [2022-01-19 05:46:46,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 56 transitions, 166 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-01-19 05:46:46,890 INFO L242 Difference]: Finished difference. Result has 64 places, 55 transitions, 131 flow [2022-01-19 05:46:46,890 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=131, PETRI_PLACES=64, PETRI_TRANSITIONS=55} [2022-01-19 05:46:46,892 INFO L334 CegarLoopForPetriNet]: 59 programPoint places, 5 predicate places. [2022-01-19 05:46:46,892 INFO L470 AbstractCegarLoop]: Abstraction has has 64 places, 55 transitions, 131 flow [2022-01-19 05:46:46,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 47.0) internal successors, (282), 6 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:46,893 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:46:46,893 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:46:46,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 05:46:46,893 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 05:46:46,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:46:46,895 INFO L85 PathProgramCache]: Analyzing trace with hash -735767419, now seen corresponding path program 1 times [2022-01-19 05:46:46,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:46:46,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738942162] [2022-01-19 05:46:46,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:46:46,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:46:46,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 05:46:46,917 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-19 05:46:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 05:46:46,971 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-19 05:46:46,971 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-19 05:46:46,972 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-19 05:46:46,973 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-01-19 05:46:46,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 05:46:46,979 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-01-19 05:46:46,984 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 05:46:46,985 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 05:46:47,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 05:46:47 BasicIcfg [2022-01-19 05:46:47,023 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 05:46:47,024 INFO L158 Benchmark]: Toolchain (without parser) took 1884.59ms. Allocated memory was 404.8MB in the beginning and 587.2MB in the end (delta: 182.5MB). Free memory was 350.4MB in the beginning and 444.8MB in the end (delta: -94.4MB). Peak memory consumption was 87.9MB. Max. memory is 16.0GB. [2022-01-19 05:46:47,024 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 404.8MB. Free memory is still 367.8MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 05:46:47,024 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.99ms. Allocated memory was 404.8MB in the beginning and 587.2MB in the end (delta: 182.5MB). Free memory was 350.2MB in the beginning and 552.8MB in the end (delta: -202.6MB). Peak memory consumption was 6.7MB. Max. memory is 16.0GB. [2022-01-19 05:46:47,025 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.64ms. Allocated memory is still 587.2MB. Free memory was 552.8MB in the beginning and 550.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 05:46:47,025 INFO L158 Benchmark]: Boogie Preprocessor took 19.13ms. Allocated memory is still 587.2MB. Free memory was 550.7MB in the beginning and 549.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 05:46:47,025 INFO L158 Benchmark]: RCFGBuilder took 305.91ms. Allocated memory is still 587.2MB. Free memory was 548.6MB in the beginning and 535.0MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-19 05:46:47,026 INFO L158 Benchmark]: TraceAbstraction took 1117.79ms. Allocated memory is still 587.2MB. Free memory was 535.0MB in the beginning and 444.8MB in the end (delta: 90.2MB). Peak memory consumption was 90.2MB. Max. memory is 16.0GB. [2022-01-19 05:46:47,027 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 404.8MB. Free memory is still 367.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 375.99ms. Allocated memory was 404.8MB in the beginning and 587.2MB in the end (delta: 182.5MB). Free memory was 350.2MB in the beginning and 552.8MB in the end (delta: -202.6MB). Peak memory consumption was 6.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 59.64ms. Allocated memory is still 587.2MB. Free memory was 552.8MB in the beginning and 550.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 19.13ms. Allocated memory is still 587.2MB. Free memory was 550.7MB in the beginning and 549.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 305.91ms. Allocated memory is still 587.2MB. Free memory was 548.6MB in the beginning and 535.0MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 1117.79ms. Allocated memory is still 587.2MB. Free memory was 535.0MB in the beginning and 444.8MB in the end (delta: 90.2MB). Peak memory consumption was 90.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L681] 0 int g = 0; VAL [g=0] [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, g=0] [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, D={4:0}, g=0] [L693] 0 pthread_t id; VAL [A={3:0}, D={4:0}, g=0, id={5:0}] [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, D={4:0}, g=0, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L687] 1 g = 17 VAL [A={3:0}, arg={0:0}, arg={0:0}, D={4:0}, g=17] [L698] CALL 0 __VERIFIER_assert(g == 0) [L19] COND TRUE 0 !(cond) VAL [\old(cond)=0, A={3:0}, arg={0:0}, arg={0:0}, cond=0, D={4:0}, g=17] [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, arg={0:0}, cond=0, D={4:0}, g=17] - UnprovableResult [Line: 694]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 78 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: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 127 IncrementalHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 11 mSDtfsCounter, 127 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=131occurred in iteration=3, 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 200 NumberOfCodeBlocks, 200 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 144 ConstructedInterpolants, 0 QuantifiedInterpolants, 456 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 RESULT: Ultimate proved your program to be incorrect! [2022-01-19 05:46:47,055 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...