/usr/bin/java -Xmx8000000000 -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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false -i ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_10-equ_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-aed12abd52951161f3584c1e4a16827ff4d06934-aed12ab [2021-10-14 11:55:09,124 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2021-10-14 11:55:09,212 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-FA-NoLbe.epf [2021-10-14 11:55:09,239 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-14 11:55:09,240 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-14 11:55:09,240 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-14 11:55:09,240 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-14 11:55:09,241 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-14 11:55:09,241 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-14 11:55:09,241 INFO L138 SettingsManager]: * Use SBE=true [2021-10-14 11:55:09,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-14 11:55:09,241 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-14 11:55:09,241 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-14 11:55:09,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-14 11:55:09,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-14 11:55:09,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-14 11:55:09,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-14 11:55:09,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-14 11:55:09,242 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-14 11:55:09,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-14 11:55:09,242 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-14 11:55:09,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-14 11:55:09,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-14 11:55:09,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-14 11:55:09,243 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-14 11:55:09,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-14 11:55:09,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-14 11:55:09,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-14 11:55:09,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-14 11:55:09,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-14 11:55:09,244 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-14 11:55:09,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-14 11:55:09,244 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-14 11:55:09,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-14 11:55:09,244 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-14 11:55:09,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-14 11:55:09,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-14 11:55:09,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-14 11:55:09,447 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-14 11:55:09,448 INFO L275 PluginConnector]: CDTParser initialized [2021-10-14 11:55:09,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_10-equ_rc.i [2021-10-14 11:55:09,495 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e99643480/4ea02e75e8694001aae0bc7ed294f92c/FLAGedb8e48e2 [2021-10-14 11:55:09,922 INFO L306 CDTParser]: Found 1 translation units. [2021-10-14 11:55:09,922 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_10-equ_rc.i [2021-10-14 11:55:09,945 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e99643480/4ea02e75e8694001aae0bc7ed294f92c/FLAGedb8e48e2 [2021-10-14 11:55:10,264 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e99643480/4ea02e75e8694001aae0bc7ed294f92c [2021-10-14 11:55:10,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-14 11:55:10,269 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-14 11:55:10,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-14 11:55:10,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-14 11:55:10,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-14 11:55:10,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:55:10" (1/1) ... [2021-10-14 11:55:10,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@738e5c30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:55:10, skipping insertion in model container [2021-10-14 11:55:10,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:55:10" (1/1) ... [2021-10-14 11:55:10,279 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-14 11:55:10,315 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-14 11:55:10,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-14 11:55:10,631 INFO L203 MainTranslator]: Completed pre-run [2021-10-14 11:55:10,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-14 11:55:10,697 INFO L208 MainTranslator]: Completed translation [2021-10-14 11:55:10,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:55:10 WrapperNode [2021-10-14 11:55:10,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-14 11:55:10,698 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-14 11:55:10,698 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-14 11:55:10,699 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-14 11:55:10,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:55:10" (1/1) ... [2021-10-14 11:55:10,714 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:55:10" (1/1) ... [2021-10-14 11:55:10,729 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-14 11:55:10,729 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-14 11:55:10,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-14 11:55:10,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-14 11:55:10,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:55:10" (1/1) ... [2021-10-14 11:55:10,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:55:10" (1/1) ... [2021-10-14 11:55:10,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:55:10" (1/1) ... [2021-10-14 11:55:10,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:55:10" (1/1) ... [2021-10-14 11:55:10,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:55:10" (1/1) ... [2021-10-14 11:55:10,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:55:10" (1/1) ... [2021-10-14 11:55:10,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:55:10" (1/1) ... [2021-10-14 11:55:10,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-14 11:55:10,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-14 11:55:10,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-14 11:55:10,746 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-14 11:55:10,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:55:10" (1/1) ... [2021-10-14 11:55:10,759 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-14 11:55:10,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-14 11:55:10,787 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) [2021-10-14 11:55:10,801 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 [2021-10-14 11:55:10,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-14 11:55:10,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-14 11:55:10,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-14 11:55:10,813 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-14 11:55:10,813 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-14 11:55:10,813 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-14 11:55:10,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-14 11:55:10,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-14 11:55:10,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-14 11:55:10,814 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-14 11:55:11,127 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-14 11:55:11,127 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-14 11:55:11,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:55:11 BoogieIcfgContainer [2021-10-14 11:55:11,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-14 11:55:11,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-14 11:55:11,130 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-14 11:55:11,134 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-14 11:55:11,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:55:10" (1/3) ... [2021-10-14 11:55:11,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@219e2b5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:55:11, skipping insertion in model container [2021-10-14 11:55:11,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:55:10" (2/3) ... [2021-10-14 11:55:11,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@219e2b5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:55:11, skipping insertion in model container [2021-10-14 11:55:11,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:55:11" (3/3) ... [2021-10-14 11:55:11,139 INFO L111 eAbstractionObserver]: Analyzing ICFG 06-symbeq_10-equ_rc.i [2021-10-14 11:55:11,143 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-14 11:55:11,143 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-14 11:55:11,143 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-14 11:55:11,143 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-14 11:55:11,164 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,165 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,165 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,165 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,165 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,166 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,166 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,166 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,166 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,166 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,166 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,166 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,166 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,167 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,167 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,167 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,169 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,169 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,169 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,170 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,170 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,170 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,170 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,170 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,170 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,171 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,171 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,171 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,171 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,171 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,171 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,171 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,176 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,176 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,177 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,177 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,177 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,177 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:55:11,181 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-14 11:55:11,214 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-14 11:55:11,223 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=true, mConcurrency=FINITE_AUTOMATA, 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 [2021-10-14 11:55:11,223 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-14 11:55:11,233 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 83 transitions, 171 flow [2021-10-14 11:55:11,268 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 327 states, 324 states have (on average 1.7654320987654322) internal successors, (572), 326 states have internal predecessors, (572), 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) [2021-10-14 11:55:11,271 INFO L276 IsEmpty]: Start isEmpty. Operand has 327 states, 324 states have (on average 1.7654320987654322) internal successors, (572), 326 states have internal predecessors, (572), 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) [2021-10-14 11:55:11,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-14 11:55:11,277 INFO L504 BasicCegarLoop]: Found error trace [2021-10-14 11:55:11,277 INFO L512 BasicCegarLoop]: 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] [2021-10-14 11:55:11,278 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-14 11:55:11,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-14 11:55:11,281 INFO L82 PathProgramCache]: Analyzing trace with hash 128782753, now seen corresponding path program 1 times [2021-10-14 11:55:11,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-14 11:55:11,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191160205] [2021-10-14 11:55:11,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-14 11:55:11,287 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-14 11:55:11,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-14 11:55:11,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-14 11:55:11,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-14 11:55:11,554 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191160205] [2021-10-14 11:55:11,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191160205] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-14 11:55:11,554 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-14 11:55:11,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-14 11:55:11,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258113297] [2021-10-14 11:55:11,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-14 11:55:11,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-14 11:55:11,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-14 11:55:11,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-14 11:55:11,570 INFO L87 Difference]: Start difference. First operand has 327 states, 324 states have (on average 1.7654320987654322) internal successors, (572), 326 states have internal predecessors, (572), 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) Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 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) [2021-10-14 11:55:11,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-14 11:55:11,755 INFO L93 Difference]: Finished difference Result 377 states and 659 transitions. [2021-10-14 11:55:11,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-14 11:55:11,756 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 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) Word has length 53 [2021-10-14 11:55:11,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-14 11:55:11,772 INFO L225 Difference]: With dead ends: 377 [2021-10-14 11:55:11,772 INFO L226 Difference]: Without dead ends: 297 [2021-10-14 11:55:11,773 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.1ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-14 11:55:11,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2021-10-14 11:55:11,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 292. [2021-10-14 11:55:11,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 289 states have (on average 1.7231833910034602) internal successors, (498), 291 states have internal predecessors, (498), 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) [2021-10-14 11:55:11,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 498 transitions. [2021-10-14 11:55:11,826 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 498 transitions. Word has length 53 [2021-10-14 11:55:11,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-14 11:55:11,826 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 498 transitions. [2021-10-14 11:55:11,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 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) [2021-10-14 11:55:11,827 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 498 transitions. [2021-10-14 11:55:11,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-14 11:55:11,828 INFO L504 BasicCegarLoop]: Found error trace [2021-10-14 11:55:11,828 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-14 11:55:11,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-14 11:55:11,828 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-14 11:55:11,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-14 11:55:11,829 INFO L82 PathProgramCache]: Analyzing trace with hash -319267068, now seen corresponding path program 1 times [2021-10-14 11:55:11,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-14 11:55:11,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494079293] [2021-10-14 11:55:11,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-14 11:55:11,830 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-14 11:55:11,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-14 11:55:11,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-14 11:55:11,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-14 11:55:11,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494079293] [2021-10-14 11:55:11,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494079293] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-14 11:55:11,960 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-14 11:55:11,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-14 11:55:11,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941896596] [2021-10-14 11:55:11,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-14 11:55:11,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-14 11:55:11,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-14 11:55:11,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-14 11:55:11,965 INFO L87 Difference]: Start difference. First operand 292 states and 498 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 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) [2021-10-14 11:55:12,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-14 11:55:12,056 INFO L93 Difference]: Finished difference Result 329 states and 562 transitions. [2021-10-14 11:55:12,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-14 11:55:12,057 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 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) Word has length 54 [2021-10-14 11:55:12,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-14 11:55:12,059 INFO L225 Difference]: With dead ends: 329 [2021-10-14 11:55:12,059 INFO L226 Difference]: Without dead ends: 274 [2021-10-14 11:55:12,060 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.1ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-14 11:55:12,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-10-14 11:55:12,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 270. [2021-10-14 11:55:12,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 267 states have (on average 1.6853932584269662) internal successors, (450), 269 states have internal predecessors, (450), 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) [2021-10-14 11:55:12,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 450 transitions. [2021-10-14 11:55:12,090 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 450 transitions. Word has length 54 [2021-10-14 11:55:12,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-14 11:55:12,091 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 450 transitions. [2021-10-14 11:55:12,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 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) [2021-10-14 11:55:12,091 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 450 transitions. [2021-10-14 11:55:12,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-14 11:55:12,092 INFO L504 BasicCegarLoop]: Found error trace [2021-10-14 11:55:12,092 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-14 11:55:12,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-14 11:55:12,093 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-14 11:55:12,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-14 11:55:12,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1150535983, now seen corresponding path program 1 times [2021-10-14 11:55:12,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-14 11:55:12,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230744882] [2021-10-14 11:55:12,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-14 11:55:12,094 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-14 11:55:12,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-14 11:55:12,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-14 11:55:12,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-14 11:55:12,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230744882] [2021-10-14 11:55:12,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230744882] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-14 11:55:12,298 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-14 11:55:12,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-14 11:55:12,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712747448] [2021-10-14 11:55:12,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-14 11:55:12,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-14 11:55:12,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-14 11:55:12,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-10-14 11:55:12,302 INFO L87 Difference]: Start difference. First operand 270 states and 450 transitions. Second operand has 11 states, 10 states have (on average 6.0) internal successors, (60), 11 states have internal predecessors, (60), 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) [2021-10-14 11:55:12,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-14 11:55:12,726 INFO L93 Difference]: Finished difference Result 489 states and 838 transitions. [2021-10-14 11:55:12,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-14 11:55:12,727 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.0) internal successors, (60), 11 states have internal predecessors, (60), 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) Word has length 60 [2021-10-14 11:55:12,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-14 11:55:12,729 INFO L225 Difference]: With dead ends: 489 [2021-10-14 11:55:12,729 INFO L226 Difference]: Without dead ends: 459 [2021-10-14 11:55:12,729 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 188.0ms TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2021-10-14 11:55:12,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2021-10-14 11:55:12,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 381. [2021-10-14 11:55:12,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 378 states have (on average 1.7380952380952381) internal successors, (657), 380 states have internal predecessors, (657), 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) [2021-10-14 11:55:12,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 657 transitions. [2021-10-14 11:55:12,740 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 657 transitions. Word has length 60 [2021-10-14 11:55:12,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-14 11:55:12,740 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 657 transitions. [2021-10-14 11:55:12,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.0) internal successors, (60), 11 states have internal predecessors, (60), 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) [2021-10-14 11:55:12,740 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 657 transitions. [2021-10-14 11:55:12,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-14 11:55:12,745 INFO L504 BasicCegarLoop]: Found error trace [2021-10-14 11:55:12,745 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-14 11:55:12,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-14 11:55:12,746 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-14 11:55:12,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-14 11:55:12,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1942192617, now seen corresponding path program 1 times [2021-10-14 11:55:12,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-14 11:55:12,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799938193] [2021-10-14 11:55:12,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-14 11:55:12,747 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-14 11:55:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-14 11:55:12,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-14 11:55:12,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-14 11:55:12,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799938193] [2021-10-14 11:55:12,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799938193] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-14 11:55:12,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-14 11:55:12,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-14 11:55:12,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976218607] [2021-10-14 11:55:12,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-14 11:55:12,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-14 11:55:12,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-14 11:55:12,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-10-14 11:55:12,937 INFO L87 Difference]: Start difference. First operand 381 states and 657 transitions. Second operand has 11 states, 10 states have (on average 6.0) internal successors, (60), 11 states have internal predecessors, (60), 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) [2021-10-14 11:55:13,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-14 11:55:13,246 INFO L93 Difference]: Finished difference Result 428 states and 727 transitions. [2021-10-14 11:55:13,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-14 11:55:13,246 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.0) internal successors, (60), 11 states have internal predecessors, (60), 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) Word has length 60 [2021-10-14 11:55:13,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-14 11:55:13,247 INFO L225 Difference]: With dead ends: 428 [2021-10-14 11:55:13,247 INFO L226 Difference]: Without dead ends: 270 [2021-10-14 11:55:13,248 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 187.4ms TimeCoverageRelationStatistics Valid=156, Invalid=350, Unknown=0, NotChecked=0, Total=506 [2021-10-14 11:55:13,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-10-14 11:55:13,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 266. [2021-10-14 11:55:13,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 263 states have (on average 1.6920152091254752) internal successors, (445), 265 states have internal predecessors, (445), 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) [2021-10-14 11:55:13,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 445 transitions. [2021-10-14 11:55:13,253 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 445 transitions. Word has length 60 [2021-10-14 11:55:13,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-14 11:55:13,253 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 445 transitions. [2021-10-14 11:55:13,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.0) internal successors, (60), 11 states have internal predecessors, (60), 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) [2021-10-14 11:55:13,253 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 445 transitions. [2021-10-14 11:55:13,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-14 11:55:13,254 INFO L504 BasicCegarLoop]: Found error trace [2021-10-14 11:55:13,254 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-14 11:55:13,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-14 11:55:13,254 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-14 11:55:13,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-14 11:55:13,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1560769784, now seen corresponding path program 1 times [2021-10-14 11:55:13,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-14 11:55:13,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790354529] [2021-10-14 11:55:13,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-14 11:55:13,255 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-14 11:55:13,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-14 11:55:13,268 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-14 11:55:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-14 11:55:13,298 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-14 11:55:13,299 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-14 11:55:13,299 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-14 11:55:13,300 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-14 11:55:13,301 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-14 11:55:13,301 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-14 11:55:13,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-14 11:55:13,305 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-14 11:55:13,305 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-14 11:55:13,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:55:13 BasicIcfg [2021-10-14 11:55:13,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-14 11:55:13,331 INFO L168 Benchmark]: Toolchain (without parser) took 3061.98 ms. Allocated memory was 185.6 MB in the beginning and 231.7 MB in the end (delta: 46.1 MB). Free memory was 134.4 MB in the beginning and 84.7 MB in the end (delta: 49.7 MB). Peak memory consumption was 98.1 MB. Max. memory is 8.0 GB. [2021-10-14 11:55:13,332 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 185.6 MB. Free memory is still 152.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-14 11:55:13,332 INFO L168 Benchmark]: CACSL2BoogieTranslator took 427.71 ms. Allocated memory is still 185.6 MB. Free memory was 134.3 MB in the beginning and 145.6 MB in the end (delta: -11.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-10-14 11:55:13,332 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.63 ms. Allocated memory is still 185.6 MB. Free memory was 145.6 MB in the beginning and 143.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-14 11:55:13,333 INFO L168 Benchmark]: Boogie Preprocessor took 15.78 ms. Allocated memory is still 185.6 MB. Free memory was 143.5 MB in the beginning and 142.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-14 11:55:13,333 INFO L168 Benchmark]: RCFGBuilder took 382.99 ms. Allocated memory is still 185.6 MB. Free memory was 142.0 MB in the beginning and 128.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-14 11:55:13,333 INFO L168 Benchmark]: TraceAbstraction took 2200.87 ms. Allocated memory was 185.6 MB in the beginning and 231.7 MB in the end (delta: 46.1 MB). Free memory was 128.9 MB in the beginning and 84.7 MB in the end (delta: 44.2 MB). Peak memory consumption was 91.9 MB. Max. memory is 8.0 GB. [2021-10-14 11:55:13,335 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 185.6 MB. Free memory is still 152.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 427.71 ms. Allocated memory is still 185.6 MB. Free memory was 134.3 MB in the beginning and 145.6 MB in the end (delta: -11.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 30.63 ms. Allocated memory is still 185.6 MB. Free memory was 145.6 MB in the beginning and 143.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 15.78 ms. Allocated memory is still 185.6 MB. Free memory was 143.5 MB in the beginning and 142.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 382.99 ms. Allocated memory is still 185.6 MB. Free memory was 142.0 MB in the beginning and 128.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2200.87 ms. Allocated memory was 185.6 MB in the beginning and 231.7 MB in the end (delta: 46.1 MB). Free memory was 128.9 MB in the beginning and 84.7 MB in the end (delta: 44.2 MB). Peak memory consumption was 91.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1012]: the program contains a data race the program contains a data race We found a FailurePath: [L982-L986] 0 struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; VAL [A={7:0}, B={9:0}] [L996] 0 int x = __VERIFIER_nondet_int(); VAL [A={7:0}, B={9:0}] [L997] 0 pthread_t id; VAL [A={7:0}, B={9:0}] [L998] 0 struct s *s; VAL [A={7:0}, B={9:0}] [L999] 0 int *d; VAL [A={7:0}, B={9:0}] [L1000] 0 pthread_mutex_t *m; VAL [A={7:0}, B={9:0}] [L1001] COND FALSE 0 !(\read(x)) VAL [A={7:0}, B={9:0}] [L1005] 0 s = &B VAL [A={7:0}, B={9:0}] [L1006] 0 x++ VAL [A={7:0}, B={9:0}] [L1008] 0 m = &s->mutex VAL [A={7:0}, B={9:0}] [L1009] 0 d = &s->datum VAL [A={7:0}, B={9:0}] [L1010] FCALL, FORK 0 pthread_create(&id,((void *)0),t_fun,((void *)0)) VAL [A={7:0}, arg={0:0}, B={9:0}] [L1012] 0 *d = 8 VAL [A={7:0}, arg={0:0}, arg={0:0}, B={9:0}] [L989] 1 B.datum = 5 VAL [A={7:0}, arg={0:0}, arg={0:0}, B={9:0}, B.datum = 5=37] [L1012] 0 *d = 8 VAL [A={7:0}, arg={0:0}, arg={0:0}, B={9:0}, B.datum = 5=37] - UnprovableResult [Line: 1010]: 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. - UnprovableResult [Line: 989]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 100 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2090.2ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 16.0ms, AutomataDifference: 1049.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 45.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 388 SDtfs, 675 SDslu, 815 SDs, 0 SdLazy, 979 SolverSat, 128 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 519.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 430.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=381occurred in iteration=3, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 90.0ms AutomataMinimizationTime, 4 MinimizatonAttempts, 91 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.4ms SsaConstructionTime, 95.7ms SatisfiabilityAnalysisTime, 623.9ms InterpolantComputationTime, 287 NumberOfCodeBlocks, 287 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 223 ConstructedInterpolants, 0 QuantifiedInterpolants, 1109 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2021-10-14 11:55:13,362 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...