/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-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-02 06:57:21,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-02 06:57:21,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-02 06:57:21,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-02 06:57:21,183 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-02 06:57:21,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-02 06:57:21,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-02 06:57:21,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-02 06:57:21,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-02 06:57:21,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-02 06:57:21,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-02 06:57:21,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-02 06:57:21,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-02 06:57:21,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-02 06:57:21,193 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-02 06:57:21,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-02 06:57:21,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-02 06:57:21,200 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-02 06:57:21,203 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-02 06:57:21,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-02 06:57:21,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-02 06:57:21,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-02 06:57:21,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-02 06:57:21,213 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-02 06:57:21,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-02 06:57:21,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-02 06:57:21,222 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-02 06:57:21,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-02 06:57:21,224 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-02 06:57:21,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-02 06:57:21,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-02 06:57:21,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-02 06:57:21,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-02 06:57:21,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-02 06:57:21,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-02 06:57:21,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-02 06:57:21,227 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-MCRwithoutDepranks-Lazy.epf [2022-03-02 06:57:21,250 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-02 06:57:21,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-02 06:57:21,251 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-02 06:57:21,251 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-02 06:57:21,251 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-02 06:57:21,252 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-02 06:57:21,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-02 06:57:21,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-02 06:57:21,252 INFO L138 SettingsManager]: * Use SBE=true [2022-03-02 06:57:21,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-02 06:57:21,253 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-02 06:57:21,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-02 06:57:21,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-02 06:57:21,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-02 06:57:21,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-02 06:57:21,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-02 06:57:21,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-02 06:57:21,254 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-02 06:57:21,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-02 06:57:21,254 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-02 06:57:21,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-02 06:57:21,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-02 06:57:21,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-02 06:57:21,254 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-02 06:57:21,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-02 06:57:21,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 06:57:21,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-02 06:57:21,255 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-02 06:57:21,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-02 06:57:21,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-02 06:57:21,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-02 06:57:21,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-02 06:57:21,256 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-02 06:57:21,256 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-02 06:57:21,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-02 06:57:21,256 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-02 06:57:21,256 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-02 06:57:21,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-02 06:57:21,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-02 06:57:21,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-02 06:57:21,477 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-02 06:57:21,478 INFO L275 PluginConnector]: CDTParser initialized [2022-03-02 06:57:21,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2022-03-02 06:57:21,548 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fab6d5d14/d46afb9e467748e5bb8151981163c40c/FLAG2dbe07a8b [2022-03-02 06:57:21,961 INFO L306 CDTParser]: Found 1 translation units. [2022-03-02 06:57:21,962 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2022-03-02 06:57:21,976 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fab6d5d14/d46afb9e467748e5bb8151981163c40c/FLAG2dbe07a8b [2022-03-02 06:57:21,987 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fab6d5d14/d46afb9e467748e5bb8151981163c40c [2022-03-02 06:57:21,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-02 06:57:21,990 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-02 06:57:21,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-02 06:57:21,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-02 06:57:22,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-02 06:57:22,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.03 06:57:21" (1/1) ... [2022-03-02 06:57:22,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a932aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 06:57:22, skipping insertion in model container [2022-03-02 06:57:22,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.03 06:57:21" (1/1) ... [2022-03-02 06:57:22,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-02 06:57:22,054 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-02 06:57:22,177 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2022-03-02 06:57:22,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-02 06:57:22,314 INFO L203 MainTranslator]: Completed pre-run [2022-03-02 06:57:22,322 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2022-03-02 06:57:22,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-02 06:57:22,363 INFO L208 MainTranslator]: Completed translation [2022-03-02 06:57:22,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 06:57:22 WrapperNode [2022-03-02 06:57:22,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-02 06:57:22,364 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-02 06:57:22,364 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-02 06:57:22,365 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-02 06:57:22,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 06:57:22" (1/1) ... [2022-03-02 06:57:22,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 06:57:22" (1/1) ... [2022-03-02 06:57:22,394 INFO L137 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2022-03-02 06:57:22,394 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-02 06:57:22,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-02 06:57:22,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-02 06:57:22,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-02 06:57:22,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 06:57:22" (1/1) ... [2022-03-02 06:57:22,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 06:57:22" (1/1) ... [2022-03-02 06:57:22,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 06:57:22" (1/1) ... [2022-03-02 06:57:22,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 06:57:22" (1/1) ... [2022-03-02 06:57:22,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 06:57:22" (1/1) ... [2022-03-02 06:57:22,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 06:57:22" (1/1) ... [2022-03-02 06:57:22,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 06:57:22" (1/1) ... [2022-03-02 06:57:22,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-02 06:57:22,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-02 06:57:22,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-02 06:57:22,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-02 06:57:22,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 06:57:22" (1/1) ... [2022-03-02 06:57:22,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 06:57:22,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 06:57:22,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-02 06:57:22,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-02 06:57:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-02 06:57:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-03-02 06:57:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-02 06:57:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-02 06:57:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-03-02 06:57:22,464 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-03-02 06:57:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-02 06:57:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-02 06:57:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-02 06:57:22,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-02 06:57:22,466 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-02 06:57:22,586 INFO L234 CfgBuilder]: Building ICFG [2022-03-02 06:57:22,587 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-02 06:57:22,746 INFO L275 CfgBuilder]: Performing block encoding [2022-03-02 06:57:22,751 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-02 06:57:22,751 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-02 06:57:22,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 06:57:22 BoogieIcfgContainer [2022-03-02 06:57:22,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-02 06:57:22,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-02 06:57:22,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-02 06:57:22,759 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-02 06:57:22,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.03 06:57:21" (1/3) ... [2022-03-02 06:57:22,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f38021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 06:57:22, skipping insertion in model container [2022-03-02 06:57:22,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 06:57:22" (2/3) ... [2022-03-02 06:57:22,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f38021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 06:57:22, skipping insertion in model container [2022-03-02 06:57:22,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 06:57:22" (3/3) ... [2022-03-02 06:57:22,761 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_pos.i [2022-03-02 06:57:22,767 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-02 06:57:22,767 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-02 06:57:22,767 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-02 06:57:22,767 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-02 06:57:22,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 06:57:22,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 06:57:22,804 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 06:57:22,804 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 06:57:22,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 06:57:22,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 06:57:22,805 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 06:57:22,805 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 06:57:22,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 06:57:22,807 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 06:57:22,807 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 06:57:22,808 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 06:57:22,808 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 06:57:22,809 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 06:57:22,809 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 06:57:22,810 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 06:57:22,810 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 06:57:22,810 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 06:57:22,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 06:57:22,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 06:57:22,819 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 06:57:22,819 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 06:57:22,820 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 06:57:22,820 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 06:57:22,820 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 06:57:22,820 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 06:57:22,823 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-02 06:57:22,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-02 06:57:22,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 06:57:22,868 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) [2022-03-02 06:57:22,870 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 [2022-03-02 06:57:22,895 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-02 06:57:22,902 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, mLazyFiniteAutomaton=true, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-02 06:57:22,902 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-02 06:57:22,974 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 58 transitions and produced 59 states. [2022-03-02 06:57:22,975 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-02 06:57:22,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 06:57:22,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1593244809, now seen corresponding path program 1 times [2022-03-02 06:57:22,986 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 06:57:22,987 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189699126] [2022-03-02 06:57:22,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 06:57:22,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 06:57:23,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 06:57:23,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 06:57:23,223 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 06:57:23,223 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189699126] [2022-03-02 06:57:23,223 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189699126] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 06:57:23,223 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 06:57:23,223 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-02 06:57:23,224 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935889312] [2022-03-02 06:57:23,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 06:57:23,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-02 06:57:23,228 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 06:57:23,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-02 06:57:23,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-02 06:57:23,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 06:57:23,242 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 06:57:23,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 06:57:23,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 06:57:23,627 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2228 transitions and produced 2229 states. [2022-03-02 06:57:23,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-02 06:57:23,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-02 06:57:23,628 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-02 06:57:23,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 06:57:23,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1362363078, now seen corresponding path program 1 times [2022-03-02 06:57:23,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 06:57:23,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218980471] [2022-03-02 06:57:23,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 06:57:23,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 06:57:23,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 06:57:23,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 06:57:23,778 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 06:57:23,778 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218980471] [2022-03-02 06:57:23,778 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218980471] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 06:57:23,778 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 06:57:23,778 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-02 06:57:23,778 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320113538] [2022-03-02 06:57:23,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 06:57:23,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-02 06:57:23,781 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 06:57:23,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-02 06:57:23,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-02 06:57:23,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 06:57:23,784 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 06:57:23,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 06:57:23,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-02 06:57:23,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 06:57:23,985 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1052 transitions and produced 1053 states. [2022-03-02 06:57:23,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-02 06:57:23,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-02 06:57:23,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-02 06:57:23,989 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-02 06:57:23,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 06:57:23,993 INFO L85 PathProgramCache]: Analyzing trace with hash -2093588025, now seen corresponding path program 1 times [2022-03-02 06:57:23,993 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 06:57:23,994 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124478210] [2022-03-02 06:57:23,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 06:57:23,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 06:57:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 06:57:24,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 06:57:24,057 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 06:57:24,057 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124478210] [2022-03-02 06:57:24,057 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124478210] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 06:57:24,057 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 06:57:24,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-02 06:57:24,058 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449382978] [2022-03-02 06:57:24,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 06:57:24,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-02 06:57:24,058 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 06:57:24,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-02 06:57:24,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-02 06:57:24,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 06:57:24,059 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 06:57:24,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 06:57:24,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-02 06:57:24,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-02 06:57:24,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 06:57:24,110 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 328 transitions and produced 329 states. [2022-03-02 06:57:24,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-02 06:57:24,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-02 06:57:24,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 06:57:24,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-02 06:57:24,111 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-02 06:57:24,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 06:57:24,112 INFO L85 PathProgramCache]: Analyzing trace with hash 401446305, now seen corresponding path program 2 times [2022-03-02 06:57:24,112 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 06:57:24,112 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265991535] [2022-03-02 06:57:24,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 06:57:24,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 06:57:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 06:57:24,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 06:57:24,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 06:57:24,226 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265991535] [2022-03-02 06:57:24,227 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265991535] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 06:57:24,227 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 06:57:24,227 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-02 06:57:24,227 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024244809] [2022-03-02 06:57:24,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 06:57:24,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-02 06:57:24,227 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 06:57:24,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-02 06:57:24,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-02 06:57:24,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 06:57:24,228 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 06:57:24,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 06:57:24,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-02 06:57:24,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-02 06:57:24,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 06:57:24,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 06:57:24,423 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 910 transitions and produced 911 states. [2022-03-02 06:57:24,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-02 06:57:24,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-02 06:57:24,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 06:57:24,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-02 06:57:24,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-02 06:57:24,424 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-02 06:57:24,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 06:57:24,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1452136571, now seen corresponding path program 1 times [2022-03-02 06:57:24,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 06:57:24,427 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246777936] [2022-03-02 06:57:24,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 06:57:24,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 06:57:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-02 06:57:24,443 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-02 06:57:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-02 06:57:24,471 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-02 06:57:24,471 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-02 06:57:24,472 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-03-02 06:57:24,473 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-03-02 06:57:24,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-02 06:57:24,477 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2022-03-02 06:57:24,480 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-02 06:57:24,480 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-02 06:57:24,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.03 06:57:24 BasicIcfg [2022-03-02 06:57:24,504 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-02 06:57:24,505 INFO L158 Benchmark]: Toolchain (without parser) took 2514.69ms. Allocated memory was 179.3MB in the beginning and 427.8MB in the end (delta: 248.5MB). Free memory was 120.9MB in the beginning and 299.2MB in the end (delta: -178.3MB). Peak memory consumption was 71.1MB. Max. memory is 8.0GB. [2022-03-02 06:57:24,505 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 179.3MB. Free memory was 139.1MB in the beginning and 139.1MB in the end (delta: 53.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 06:57:24,505 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.67ms. Allocated memory was 179.3MB in the beginning and 252.7MB in the end (delta: 73.4MB). Free memory was 120.7MB in the beginning and 214.8MB in the end (delta: -94.1MB). Peak memory consumption was 9.6MB. Max. memory is 8.0GB. [2022-03-02 06:57:24,506 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.20ms. Allocated memory is still 252.7MB. Free memory was 214.8MB in the beginning and 212.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-02 06:57:24,506 INFO L158 Benchmark]: Boogie Preprocessor took 13.50ms. Allocated memory is still 252.7MB. Free memory was 212.7MB in the beginning and 211.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 06:57:24,506 INFO L158 Benchmark]: RCFGBuilder took 343.67ms. Allocated memory is still 252.7MB. Free memory was 211.7MB in the beginning and 198.0MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-03-02 06:57:24,507 INFO L158 Benchmark]: TraceAbstraction took 1750.39ms. Allocated memory was 252.7MB in the beginning and 427.8MB in the end (delta: 175.1MB). Free memory was 197.5MB in the beginning and 299.2MB in the end (delta: -101.7MB). Peak memory consumption was 74.5MB. Max. memory is 8.0GB. [2022-03-02 06:57:24,508 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 179.3MB. Free memory was 139.1MB in the beginning and 139.1MB in the end (delta: 53.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 364.67ms. Allocated memory was 179.3MB in the beginning and 252.7MB in the end (delta: 73.4MB). Free memory was 120.7MB in the beginning and 214.8MB in the end (delta: -94.1MB). Peak memory consumption was 9.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.20ms. Allocated memory is still 252.7MB. Free memory was 214.8MB in the beginning and 212.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.50ms. Allocated memory is still 252.7MB. Free memory was 212.7MB in the beginning and 211.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 343.67ms. Allocated memory is still 252.7MB. Free memory was 211.7MB in the beginning and 198.0MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1750.39ms. Allocated memory was 252.7MB in the beginning and 427.8MB in the end (delta: 175.1MB). Free memory was 197.5MB in the beginning and 299.2MB in the end (delta: -101.7MB). Peak memory consumption was 74.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L681] 0 int g = 0; VAL [g=0] [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, g=0] [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, D={4:0}, g=0] [L693] 0 pthread_t id; VAL [A={3:0}, D={4:0}, g=0, id={5:0}] [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, D={4:0}, g=0, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L687] 1 g = 17 VAL [A={3:0}, arg={0:0}, arg={0:0}, D={4:0}, g=17] [L698] CALL 0 __VERIFIER_assert(g == 0) [L19] COND TRUE 0 !(cond) VAL [\old(cond)=0, A={3:0}, arg={0:0}, arg={0:0}, cond=0, D={4:0}, g=17] [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, arg={0:0}, cond=0, D={4:0}, g=17] - UnprovableResult [Line: 694]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 78 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 253 NumberOfCodeBlocks, 253 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 196 ConstructedInterpolants, 0 QuantifiedInterpolants, 560 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! [2022-03-02 06:57:24,536 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 [2022-03-02 06:57:24,747 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...