/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf -i ../sv-benchmarks/c/weaver/test/semi1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-06 16:47:45,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-06 16:47:45,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-06 16:47:45,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-06 16:47:45,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-06 16:47:45,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-06 16:47:45,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-06 16:47:45,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-06 16:47:45,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-06 16:47:45,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-06 16:47:45,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-06 16:47:45,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-06 16:47:45,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-06 16:47:45,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-06 16:47:45,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-06 16:47:45,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-06 16:47:45,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-06 16:47:45,176 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-06 16:47:45,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-06 16:47:45,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-06 16:47:45,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-06 16:47:45,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-06 16:47:45,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-06 16:47:45,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-06 16:47:45,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-06 16:47:45,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-06 16:47:45,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-06 16:47:45,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-06 16:47:45,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-06 16:47:45,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-06 16:47:45,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-06 16:47:45,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-06 16:47:45,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-06 16:47:45,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-06 16:47:45,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-06 16:47:45,236 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-06 16:47:45,237 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf [2021-10-06 16:47:45,296 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-06 16:47:45,296 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-06 16:47:45,297 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-06 16:47:45,297 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-06 16:47:45,298 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-06 16:47:45,299 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-06 16:47:45,299 INFO L138 SettingsManager]: * Use SBE=true [2021-10-06 16:47:45,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-06 16:47:45,299 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-06 16:47:45,300 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-06 16:47:45,300 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-06 16:47:45,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-06 16:47:45,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-06 16:47:45,301 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-06 16:47:45,301 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-06 16:47:45,301 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-06 16:47:45,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-06 16:47:45,301 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-06 16:47:45,302 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-06 16:47:45,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-06 16:47:45,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-06 16:47:45,302 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-06 16:47:45,303 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-06 16:47:45,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 16:47:45,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-06 16:47:45,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-06 16:47:45,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-06 16:47:45,304 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-06 16:47:45,304 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-10-06 16:47:45,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-06 16:47:45,304 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-06 16:47:45,304 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-06 16:47:45,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-06 16:47:45,305 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-06 16:47:45,305 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-06 16:47:45,305 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-06 16:47:45,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-06 16:47:45,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-06 16:47:45,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-06 16:47:45,706 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-06 16:47:45,707 INFO L275 PluginConnector]: CDTParser initialized [2021-10-06 16:47:45,708 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/test/semi1.wvr.c [2021-10-06 16:47:45,786 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/99118aff2/9443e939827344149217bab654f9513a/FLAG052ea2e13 [2021-10-06 16:47:46,336 INFO L306 CDTParser]: Found 1 translation units. [2021-10-06 16:47:46,337 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/test/semi1.wvr.c [2021-10-06 16:47:46,346 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/99118aff2/9443e939827344149217bab654f9513a/FLAG052ea2e13 [2021-10-06 16:47:46,718 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/99118aff2/9443e939827344149217bab654f9513a [2021-10-06 16:47:46,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-06 16:47:46,742 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-06 16:47:46,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-06 16:47:46,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-06 16:47:46,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-06 16:47:46,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 04:47:46" (1/1) ... [2021-10-06 16:47:46,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16a2251e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:47:46, skipping insertion in model container [2021-10-06 16:47:46,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 04:47:46" (1/1) ... [2021-10-06 16:47:46,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-06 16:47:46,789 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-06 16:47:47,056 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/test/semi1.wvr.c[1890,1903] [2021-10-06 16:47:47,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 16:47:47,076 INFO L203 MainTranslator]: Completed pre-run [2021-10-06 16:47:47,108 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/test/semi1.wvr.c[1890,1903] [2021-10-06 16:47:47,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 16:47:47,135 INFO L208 MainTranslator]: Completed translation [2021-10-06 16:47:47,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:47:47 WrapperNode [2021-10-06 16:47:47,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-06 16:47:47,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-06 16:47:47,137 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-06 16:47:47,137 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-06 16:47:47,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:47:47" (1/1) ... [2021-10-06 16:47:47,156 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:47:47" (1/1) ... [2021-10-06 16:47:47,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-06 16:47:47,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-06 16:47:47,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-06 16:47:47,197 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-06 16:47:47,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:47:47" (1/1) ... [2021-10-06 16:47:47,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:47:47" (1/1) ... [2021-10-06 16:47:47,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:47:47" (1/1) ... [2021-10-06 16:47:47,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:47:47" (1/1) ... [2021-10-06 16:47:47,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:47:47" (1/1) ... [2021-10-06 16:47:47,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:47:47" (1/1) ... [2021-10-06 16:47:47,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:47:47" (1/1) ... [2021-10-06 16:47:47,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-06 16:47:47,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-06 16:47:47,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-06 16:47:47,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-06 16:47:47,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:47:47" (1/1) ... [2021-10-06 16:47:47,260 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 16:47:47,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-06 16:47:47,298 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-06 16:47:47,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-06 16:47:47,378 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-06 16:47:47,379 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-06 16:47:47,379 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-06 16:47:47,379 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-06 16:47:47,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-06 16:47:47,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-06 16:47:47,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-06 16:47:47,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-06 16:47:47,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-06 16:47:47,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-06 16:47:47,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-06 16:47:47,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-06 16:47:47,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-06 16:47:47,383 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-06 16:47:47,789 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-06 16:47:47,789 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-06 16:47:47,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 04:47:47 BoogieIcfgContainer [2021-10-06 16:47:47,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-06 16:47:47,800 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-06 16:47:47,800 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-06 16:47:47,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-06 16:47:47,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 04:47:46" (1/3) ... [2021-10-06 16:47:47,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28fafb92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 04:47:47, skipping insertion in model container [2021-10-06 16:47:47,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:47:47" (2/3) ... [2021-10-06 16:47:47,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28fafb92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 04:47:47, skipping insertion in model container [2021-10-06 16:47:47,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 04:47:47" (3/3) ... [2021-10-06 16:47:47,837 INFO L111 eAbstractionObserver]: Analyzing ICFG semi1.wvr.c [2021-10-06 16:47:47,850 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-06 16:47:47,850 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-06 16:47:47,850 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-06 16:47:47,850 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-06 16:47:47,888 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:47:47,889 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:47:47,889 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:47:47,889 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:47:47,889 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:47:47,890 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:47:47,890 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:47:47,890 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:47:47,894 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:47:47,895 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:47:47,895 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:47:47,898 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:47:47,898 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:47:47,898 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:47:47,899 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:47:47,899 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:47:47,909 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-06 16:47:47,959 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-06 16:47:47,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-06 16:47:47,966 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-06 16:47:47,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-10-06 16:47:48,025 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-06 16:47:48,033 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=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 [2021-10-06 16:47:48,034 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-06 16:47:48,176 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-06 16:47:48,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 16:47:48,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1597998081, now seen corresponding path program 1 times [2021-10-06 16:47:48,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-06 16:47:48,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232823767] [2021-10-06 16:47:48,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 16:47:48,203 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-06 16:47:48,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 16:47:48,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 16:47:48,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-06 16:47:48,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232823767] [2021-10-06 16:47:48,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232823767] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-06 16:47:48,538 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-06 16:47:48,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-06 16:47:48,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494389053] [2021-10-06 16:47:48,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-06 16:47:48,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-06 16:47:48,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-06 16:47:48,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-06 16:47:48,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-06 16:47:48,578 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-06 16:47:48,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 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) [2021-10-06 16:47:48,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-06 16:47:48,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-06 16:47:48,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-06 16:47:48,604 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-06 16:47:48,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 16:47:48,605 INFO L82 PathProgramCache]: Analyzing trace with hash -431818308, now seen corresponding path program 1 times [2021-10-06 16:47:48,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-06 16:47:48,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089125142] [2021-10-06 16:47:48,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 16:47:48,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-06 16:47:48,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 16:47:49,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 16:47:49,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-06 16:47:49,034 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089125142] [2021-10-06 16:47:49,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089125142] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-06 16:47:49,034 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-06 16:47:49,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-06 16:47:49,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444321728] [2021-10-06 16:47:49,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-06 16:47:49,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-06 16:47:49,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-06 16:47:49,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-06 16:47:49,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-06 16:47:49,039 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-06 16:47:49,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 16:47:49,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-06 16:47:49,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-06 16:47:49,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-06 16:47:49,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-06 16:47:49,196 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-06 16:47:49,196 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-06 16:47:49,197 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-06 16:47:49,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-06 16:47:49,209 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-06 16:47:49,209 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-06 16:47:49,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 04:47:49 BasicIcfg [2021-10-06 16:47:49,212 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-06 16:47:49,213 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-06 16:47:49,213 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-06 16:47:49,213 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-06 16:47:49,214 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 04:47:47" (3/4) ... [2021-10-06 16:47:49,217 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-06 16:47:49,224 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-06 16:47:49,225 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-06 16:47:49,230 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-06 16:47:49,230 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-06 16:47:49,230 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-06 16:47:49,231 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-06 16:47:49,273 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/test/semi1.wvr.c-witness.graphml [2021-10-06 16:47:49,274 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-06 16:47:49,275 INFO L168 Benchmark]: Toolchain (without parser) took 2538.99 ms. Allocated memory is still 173.0 MB. Free memory was 147.5 MB in the beginning and 107.3 MB in the end (delta: 40.2 MB). Peak memory consumption was 41.1 MB. Max. memory is 8.0 GB. [2021-10-06 16:47:49,276 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 173.0 MB. Free memory is still 145.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-06 16:47:49,277 INFO L168 Benchmark]: CACSL2BoogieTranslator took 389.77 ms. Allocated memory is still 173.0 MB. Free memory was 147.1 MB in the beginning and 137.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-06 16:47:49,277 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.42 ms. Allocated memory is still 173.0 MB. Free memory was 137.2 MB in the beginning and 135.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-06 16:47:49,278 INFO L168 Benchmark]: Boogie Preprocessor took 50.01 ms. Allocated memory is still 173.0 MB. Free memory was 135.6 MB in the beginning and 134.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-06 16:47:49,279 INFO L168 Benchmark]: RCFGBuilder took 547.32 ms. Allocated memory is still 173.0 MB. Free memory was 134.5 MB in the beginning and 122.2 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-06 16:47:49,279 INFO L168 Benchmark]: TraceAbstraction took 1412.19 ms. Allocated memory is still 173.0 MB. Free memory was 121.8 MB in the beginning and 109.9 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. [2021-10-06 16:47:49,280 INFO L168 Benchmark]: Witness Printer took 61.19 ms. Allocated memory is still 173.0 MB. Free memory was 109.9 MB in the beginning and 107.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-06 16:47:49,283 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 173.0 MB. Free memory is still 145.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 389.77 ms. Allocated memory is still 173.0 MB. Free memory was 147.1 MB in the beginning and 137.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 58.42 ms. Allocated memory is still 173.0 MB. Free memory was 137.2 MB in the beginning and 135.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 50.01 ms. Allocated memory is still 173.0 MB. Free memory was 135.6 MB in the beginning and 134.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 547.32 ms. Allocated memory is still 173.0 MB. Free memory was 134.5 MB in the beginning and 122.2 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1412.19 ms. Allocated memory is still 173.0 MB. Free memory was 121.8 MB in the beginning and 109.9 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. * Witness Printer took 61.19 ms. Allocated memory is still 173.0 MB. Free memory was 109.9 MB in the beginning and 107.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 136, positive: 127, positive conditional: 46, positive unconditional: 81, negative: 9, negative conditional: 6, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 130, positive: 127, positive conditional: 46, positive unconditional: 81, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 130, positive: 127, positive conditional: 46, positive unconditional: 81, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 130, positive: 127, positive conditional: 34, positive unconditional: 93, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 130, positive: 127, positive conditional: 20, positive unconditional: 107, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 130, positive: 127, positive conditional: 20, positive unconditional: 107, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 86, positive: 83, positive conditional: 1, positive unconditional: 82, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 86, positive: 82, positive conditional: 0, positive unconditional: 82, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 62, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 57, negative conditional: 0, negative unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 130, positive: 44, positive conditional: 19, positive unconditional: 25, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 86, unknown conditional: 1, unknown unconditional: 85] , Statistics on independence cache: Total cache size (in pairs): 86, Positive cache size: 83, Positive conditional cache size: 1, Positive unconditional cache size: 82, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Eliminated conditions: 14, Maximal queried relation: 0, Independence queries for same thread: 6 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 91, Number of persistent set computation: 62, Number of trivial persistent sets: 56, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 84, positive: 81, positive conditional: 0, positive unconditional: 81, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 136, positive: 127, positive conditional: 46, positive unconditional: 81, negative: 9, negative conditional: 6, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 130, positive: 127, positive conditional: 46, positive unconditional: 81, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 130, positive: 127, positive conditional: 46, positive unconditional: 81, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 130, positive: 127, positive conditional: 34, positive unconditional: 93, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 130, positive: 127, positive conditional: 20, positive unconditional: 107, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 130, positive: 127, positive conditional: 20, positive unconditional: 107, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 86, positive: 83, positive conditional: 1, positive unconditional: 82, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 86, positive: 82, positive conditional: 0, positive unconditional: 82, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 62, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 57, negative conditional: 0, negative unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 130, positive: 44, positive conditional: 19, positive unconditional: 25, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 86, unknown conditional: 1, unknown unconditional: 85] , Statistics on independence cache: Total cache size (in pairs): 86, Positive cache size: 83, Positive conditional cache size: 1, Positive unconditional cache size: 82, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Eliminated conditions: 14, Maximal queried relation: 0, Independence queries for same thread: 6 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 67]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 68 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1252.5ms, OverallIterations: 2, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 21.0ms, PartialOrderReductionTime: 296.3ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 28.6ms SsaConstructionTime, 130.4ms SatisfiabilityAnalysisTime, 485.4ms InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 304 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-06 16:47:49,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-10-06 16:47:49,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...