/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-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/27_Boop_simple_vf.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-ba0fd47f62a02cd5486659f03d300faf678a2e90-ba0fd47 [2021-11-14 01:02:07,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-14 01:02:07,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-14 01:02:07,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-11-14 01:02:07,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-14 01:02:07,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-14 01:02:07,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-14 01:02:07,428 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-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf [2021-11-14 01:02:07,441 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-14 01:02:07,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-14 01:02:07,441 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-14 01:02:07,441 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-14 01:02:07,442 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-14 01:02:07,442 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-14 01:02:07,442 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-14 01:02:07,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-14 01:02:07,442 INFO L138 SettingsManager]: * Use SBE=true [2021-11-14 01:02:07,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-14 01:02:07,443 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-14 01:02:07,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-14 01:02:07,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-14 01:02:07,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-14 01:02:07,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-14 01:02:07,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-14 01:02:07,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-14 01:02:07,443 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-14 01:02:07,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-14 01:02:07,444 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-14 01:02:07,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-14 01:02:07,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-14 01:02:07,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-14 01:02:07,444 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-14 01:02:07,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-14 01:02:07,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-14 01:02:07,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-14 01:02:07,444 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-14 01:02:07,444 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-14 01:02:07,445 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-14 01:02:07,445 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-11-14 01:02:07,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-14 01:02:07,445 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-14 01:02:07,445 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-14 01:02:07,445 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-14 01:02:07,445 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-14 01:02:07,445 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-14 01:02:07,445 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-11-14 01:02:07,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-14 01:02:07,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-14 01:02:07,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-14 01:02:07,636 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-14 01:02:07,636 INFO L275 PluginConnector]: CDTParser initialized [2021-11-14 01:02:07,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/27_Boop_simple_vf.i [2021-11-14 01:02:07,695 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0865a9020/7c02100178784fe4a00fe724180c26c6/FLAGcb50d88a4 [2021-11-14 01:02:08,041 INFO L306 CDTParser]: Found 1 translation units. [2021-11-14 01:02:08,042 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/27_Boop_simple_vf.i [2021-11-14 01:02:08,056 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0865a9020/7c02100178784fe4a00fe724180c26c6/FLAGcb50d88a4 [2021-11-14 01:02:08,435 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0865a9020/7c02100178784fe4a00fe724180c26c6 [2021-11-14 01:02:08,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-14 01:02:08,438 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-14 01:02:08,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-14 01:02:08,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-14 01:02:08,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-14 01:02:08,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 01:02:08" (1/1) ... [2021-11-14 01:02:08,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59c77c67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 01:02:08, skipping insertion in model container [2021-11-14 01:02:08,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 01:02:08" (1/1) ... [2021-11-14 01:02:08,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-14 01:02:08,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-14 01:02:08,798 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/27_Boop_simple_vf.i[30297,30310] [2021-11-14 01:02:08,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-14 01:02:08,813 INFO L203 MainTranslator]: Completed pre-run [2021-11-14 01:02:08,850 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/27_Boop_simple_vf.i[30297,30310] [2021-11-14 01:02:08,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-14 01:02:08,873 INFO L208 MainTranslator]: Completed translation [2021-11-14 01:02:08,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 01:02:08 WrapperNode [2021-11-14 01:02:08,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-14 01:02:08,874 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-14 01:02:08,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-14 01:02:08,875 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-14 01:02:08,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 01:02:08" (1/1) ... [2021-11-14 01:02:08,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 01:02:08" (1/1) ... [2021-11-14 01:02:08,898 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-14 01:02:08,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-14 01:02:08,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-14 01:02:08,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-14 01:02:08,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 01:02:08" (1/1) ... [2021-11-14 01:02:08,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 01:02:08" (1/1) ... [2021-11-14 01:02:08,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 01:02:08" (1/1) ... [2021-11-14 01:02:08,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 01:02:08" (1/1) ... [2021-11-14 01:02:08,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 01:02:08" (1/1) ... [2021-11-14 01:02:08,909 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 01:02:08" (1/1) ... [2021-11-14 01:02:08,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 01:02:08" (1/1) ... [2021-11-14 01:02:08,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-14 01:02:08,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-14 01:02:08,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-14 01:02:08,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-14 01:02:08,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 01:02:08" (1/1) ... [2021-11-14 01:02:08,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-14 01:02:08,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 01:02:08,931 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) [2021-11-14 01:02:08,935 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 [2021-11-14 01:02:08,953 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-11-14 01:02:08,953 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-11-14 01:02:08,953 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-14 01:02:08,953 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-14 01:02:08,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-14 01:02:08,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-14 01:02:08,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-14 01:02:08,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-14 01:02:08,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-14 01:02:08,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-14 01:02:08,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-14 01:02:08,956 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-14 01:02:09,121 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-14 01:02:09,121 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-14 01:02:09,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 01:02:09 BoogieIcfgContainer [2021-11-14 01:02:09,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-14 01:02:09,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-14 01:02:09,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-14 01:02:09,126 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-14 01:02:09,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 01:02:08" (1/3) ... [2021-11-14 01:02:09,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@267b269c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 01:02:09, skipping insertion in model container [2021-11-14 01:02:09,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 01:02:08" (2/3) ... [2021-11-14 01:02:09,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@267b269c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 01:02:09, skipping insertion in model container [2021-11-14 01:02:09,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 01:02:09" (3/3) ... [2021-11-14 01:02:09,128 INFO L111 eAbstractionObserver]: Analyzing ICFG 27_Boop_simple_vf.i [2021-11-14 01:02:09,131 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-14 01:02:09,131 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-14 01:02:09,131 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-14 01:02:09,131 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-14 01:02:09,149 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,149 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,149 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,149 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,149 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,149 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,149 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,150 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,150 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,150 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,150 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,150 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,151 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,151 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,151 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,151 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,151 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,152 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,152 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,152 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,152 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,152 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,152 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,152 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,152 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~rval~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,152 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~rval~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,152 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~rval~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,152 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~rval~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,153 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~count~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,153 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~count~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,153 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,153 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~rval~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~rval~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~rval~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~rval~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~rval~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,155 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~rval~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,155 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~rval~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,155 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~rval~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,155 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~rval~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,155 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~rval~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,155 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~rval~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,155 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~rval~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,155 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~count~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,156 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~count~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,156 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~count~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,156 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~count~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,156 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~count~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,156 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~count~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,156 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~count~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,156 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~count~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,157 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,157 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,157 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,157 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,159 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,160 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,160 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,160 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,162 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~rval~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,162 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,162 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,162 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~rval~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,162 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,162 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,162 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,162 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~count~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:02:09,163 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-14 01:02:09,196 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 01:02:09,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 01:02:09,206 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 01:02:09,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-14 01:02:09,233 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork1 ======== [2021-11-14 01:02:09,237 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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 [2021-11-14 01:02:09,237 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 01:02:09,351 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 01:02:09,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 01:02:09,354 INFO L85 PathProgramCache]: Analyzing trace with hash 350467283, now seen corresponding path program 1 times [2021-11-14 01:02:09,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 01:02:09,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138522913] [2021-11-14 01:02:09,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 01:02:09,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 01:02:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 01:02:09,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 01:02:09,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 01:02:09,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138522913] [2021-11-14 01:02:09,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138522913] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 01:02:09,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 01:02:09,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-14 01:02:09,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684817456] [2021-11-14 01:02:09,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 01:02:09,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-14 01:02:09,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 01:02:09,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-14 01:02:09,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-14 01:02:09,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:02:09,492 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 01:02:09,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 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) [2021-11-14 01:02:09,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:02:09,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:02:09,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-14 01:02:09,534 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 01:02:09,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 01:02:09,534 INFO L85 PathProgramCache]: Analyzing trace with hash 337333585, now seen corresponding path program 1 times [2021-11-14 01:02:09,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 01:02:09,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031018115] [2021-11-14 01:02:09,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 01:02:09,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 01:02:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 01:02:09,593 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 01:02:09,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 01:02:09,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031018115] [2021-11-14 01:02:09,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031018115] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 01:02:09,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 01:02:09,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-14 01:02:09,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973540967] [2021-11-14 01:02:09,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 01:02:09,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-14 01:02:09,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 01:02:09,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-14 01:02:09,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-14 01:02:09,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:02:09,596 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 01:02:09,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2021-11-14 01:02:09,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:02:09,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:02:09,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:02:09,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:02:09,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-14 01:02:09,644 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 01:02:09,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 01:02:09,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1223110250, now seen corresponding path program 1 times [2021-11-14 01:02:09,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 01:02:09,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170096668] [2021-11-14 01:02:09,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 01:02:09,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 01:02:09,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 01:02:09,696 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-14 01:02:09,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 01:02:09,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170096668] [2021-11-14 01:02:09,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170096668] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 01:02:09,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810684287] [2021-11-14 01:02:09,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 01:02:09,697 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 01:02:09,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 01:02:09,698 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 01:02:09,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-14 01:02:09,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 01:02:09,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-14 01:02:09,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 01:02:09,878 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-14 01:02:09,878 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-14 01:02:09,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810684287] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 01:02:09,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-14 01:02:09,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-14 01:02:09,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934705295] [2021-11-14 01:02:09,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 01:02:09,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-14 01:02:09,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 01:02:09,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-14 01:02:09,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-14 01:02:09,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:02:09,880 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 01:02:09,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2021-11-14 01:02:09,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:02:09,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:02:09,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:02:09,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:02:09,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:02:09,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:02:09,939 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-14 01:02:10,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-14 01:02:10,113 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 01:02:10,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 01:02:10,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1807658657, now seen corresponding path program 1 times [2021-11-14 01:02:10,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 01:02:10,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226094511] [2021-11-14 01:02:10,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 01:02:10,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 01:02:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 01:02:10,131 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-14 01:02:10,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 01:02:10,158 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-14 01:02:10,158 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-14 01:02:10,158 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-14 01:02:10,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-14 01:02:10,164 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-14 01:02:10,164 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork1 was UNSAFE (1/2) [2021-11-14 01:02:10,166 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-14 01:02:10,166 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-14 01:02:10,193 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getProgramExecutionAsString(CounterExampleResult.java:155) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getLongDescription(CounterExampleResult.java:134) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-14 01:02:10,195 INFO L158 Benchmark]: Toolchain (without parser) took 1757.05ms. Allocated memory is still 362.8MB. Free memory was 307.0MB in the beginning and 273.7MB in the end (delta: 33.3MB). Peak memory consumption was 34.7MB. Max. memory is 16.0GB. [2021-11-14 01:02:10,195 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 362.8MB. Free memory is still 325.3MB. There was no memory consumed. Max. memory is 16.0GB. [2021-11-14 01:02:10,196 INFO L158 Benchmark]: CACSL2BoogieTranslator took 432.54ms. Allocated memory is still 362.8MB. Free memory was 306.8MB in the beginning and 326.0MB in the end (delta: -19.2MB). Peak memory consumption was 15.8MB. Max. memory is 16.0GB. [2021-11-14 01:02:10,196 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.25ms. Allocated memory is still 362.8MB. Free memory was 326.0MB in the beginning and 324.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2021-11-14 01:02:10,196 INFO L158 Benchmark]: Boogie Preprocessor took 13.53ms. Allocated memory is still 362.8MB. Free memory was 324.2MB in the beginning and 322.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2021-11-14 01:02:10,196 INFO L158 Benchmark]: RCFGBuilder took 210.41ms. Allocated memory is still 362.8MB. Free memory was 322.8MB in the beginning and 311.4MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2021-11-14 01:02:10,197 INFO L158 Benchmark]: TraceAbstraction took 1071.22ms. Allocated memory is still 362.8MB. Free memory was 311.0MB in the beginning and 273.7MB in the end (delta: 37.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. [2021-11-14 01:02:10,198 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 362.8MB. Free memory is still 325.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 432.54ms. Allocated memory is still 362.8MB. Free memory was 306.8MB in the beginning and 326.0MB in the end (delta: -19.2MB). Peak memory consumption was 15.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 23.25ms. Allocated memory is still 362.8MB. Free memory was 326.0MB in the beginning and 324.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 13.53ms. Allocated memory is still 362.8MB. Free memory was 324.2MB in the beginning and 322.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 210.41ms. Allocated memory is still 362.8MB. Free memory was 322.8MB in the beginning and 311.4MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 1071.22ms. Allocated memory is still 362.8MB. Free memory was 311.0MB in the beginning and 273.7MB in the end (delta: 37.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3424, positive: 3097, positive conditional: 870, positive unconditional: 2227, negative: 327, negative conditional: 316, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3110, positive: 3097, positive conditional: 870, positive unconditional: 2227, negative: 13, negative conditional: 2, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3110, positive: 3097, positive conditional: 870, positive unconditional: 2227, negative: 13, negative conditional: 2, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3112, positive: 3097, positive conditional: 672, positive unconditional: 2425, negative: 15, negative conditional: 2, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3112, positive: 3097, positive conditional: 200, positive unconditional: 2897, negative: 15, negative conditional: 2, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3112, positive: 3097, positive conditional: 200, positive unconditional: 2897, negative: 15, negative conditional: 2, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1781, positive: 1769, positive conditional: 0, positive unconditional: 1769, negative: 12, negative conditional: 1, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1781, positive: 1765, positive conditional: 0, positive unconditional: 1765, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 16, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 12, negative conditional: 1, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 43, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 38, negative conditional: 1, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3112, positive: 1328, positive conditional: 200, positive unconditional: 1128, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 1781, unknown conditional: 1, unknown unconditional: 1780] , Statistics on independence cache: Total cache size (in pairs): 1781, Positive cache size: 1769, Positive conditional cache size: 0, Positive unconditional cache size: 1769, Negative cache size: 12, Negative conditional cache size: 1, Negative unconditional cache size: 11, Eliminated conditions: 472, Maximal queried relation: 1, Independence queries for same thread: 314 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 92.73ms, Number of persistent set computation: 151, Number of trivial persistent sets: 112, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2238, positive: 2227, positive conditional: 0, positive unconditional: 2227, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3424, positive: 3097, positive conditional: 870, positive unconditional: 2227, negative: 327, negative conditional: 316, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3110, positive: 3097, positive conditional: 870, positive unconditional: 2227, negative: 13, negative conditional: 2, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3110, positive: 3097, positive conditional: 870, positive unconditional: 2227, negative: 13, negative conditional: 2, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3112, positive: 3097, positive conditional: 672, positive unconditional: 2425, negative: 15, negative conditional: 2, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3112, positive: 3097, positive conditional: 200, positive unconditional: 2897, negative: 15, negative conditional: 2, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3112, positive: 3097, positive conditional: 200, positive unconditional: 2897, negative: 15, negative conditional: 2, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1781, positive: 1769, positive conditional: 0, positive unconditional: 1769, negative: 12, negative conditional: 1, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1781, positive: 1765, positive conditional: 0, positive unconditional: 1765, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 16, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 12, negative conditional: 1, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 43, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 38, negative conditional: 1, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3112, positive: 1328, positive conditional: 200, positive unconditional: 1128, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 1781, unknown conditional: 1, unknown unconditional: 1780] , Statistics on independence cache: Total cache size (in pairs): 1781, Positive cache size: 1769, Positive conditional cache size: 0, Positive unconditional cache size: 1769, Negative cache size: 12, Negative conditional cache size: 1, Negative unconditional cache size: 11, Eliminated conditions: 472, Maximal queried relation: 1, Independence queries for same thread: 314 - 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 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-14 01:02:10,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-11-14 01:02:10,447 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...