/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-PN-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe029_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 18:43:41,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 18:43:41,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 18:43:41,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 18:43:41,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 18:43:41,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 18:43:41,092 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 18:43:41,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 18:43:41,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 18:43:41,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 18:43:41,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 18:43:41,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 18:43:41,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 18:43:41,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 18:43:41,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 18:43:41,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 18:43:41,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 18:43:41,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 18:43:41,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 18:43:41,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 18:43:41,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 18:43:41,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 18:43:41,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 18:43:41,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 18:43:41,145 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 18:43:41,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 18:43:41,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 18:43:41,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 18:43:41,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 18:43:41,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 18:43:41,148 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 18:43:41,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 18:43:41,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 18:43:41,149 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 18:43:41,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 18:43:41,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 18:43:41,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 18:43:41,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 18:43:41,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 18:43:41,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 18:43:41,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 18:43:41,157 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-12 18:43:41,187 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 18:43:41,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 18:43:41,188 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 18:43:41,189 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 18:43:41,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 18:43:41,191 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 18:43:41,191 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 18:43:41,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 18:43:41,191 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 18:43:41,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 18:43:41,192 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 18:43:41,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 18:43:41,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 18:43:41,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 18:43:41,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 18:43:41,193 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 18:43:41,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 18:43:41,193 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 18:43:41,193 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 18:43:41,193 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 18:43:41,193 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 18:43:41,193 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 18:43:41,194 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 18:43:41,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 18:43:41,194 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 18:43:41,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 18:43:41,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 18:43:41,194 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 18:43:41,194 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 18:43:41,195 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 18:43:41,195 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-12 18:43:41,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 18:43:41,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 18:43:41,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 18:43:41,582 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 18:43:41,582 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 18:43:41,584 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe029_tso.i [2022-12-12 18:43:42,648 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 18:43:42,921 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 18:43:42,922 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_tso.i [2022-12-12 18:43:42,933 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2877baf7f/b6bebb4908c246738f6bbef998d8e11b/FLAG9785a1a3c [2022-12-12 18:43:42,950 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2877baf7f/b6bebb4908c246738f6bbef998d8e11b [2022-12-12 18:43:42,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 18:43:42,954 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 18:43:42,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 18:43:42,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 18:43:42,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 18:43:42,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 06:43:42" (1/1) ... [2022-12-12 18:43:42,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c601fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:42, skipping insertion in model container [2022-12-12 18:43:42,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 06:43:42" (1/1) ... [2022-12-12 18:43:42,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 18:43:43,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 18:43:43,146 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_tso.i[945,958] [2022-12-12 18:43:43,334 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:43,334 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:43,335 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:43,336 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:43,336 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:43,336 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:43,337 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:43,337 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:43,338 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:43,338 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:43,339 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:43,339 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:43,339 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:43,339 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:43,340 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:43,340 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:43,348 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:43,349 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:43,350 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:43,350 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:43,350 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:43,352 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:43,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 18:43:43,364 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 18:43:43,379 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_tso.i[945,958] [2022-12-12 18:43:43,407 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:43,410 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:43,411 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:43,411 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:43,412 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:43,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:43,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:43,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:43,415 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:43,415 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:43,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:43,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:43,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:43,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:43,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:43,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:43,422 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:43,422 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:43,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:43,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:43,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:43,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:43,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 18:43:43,467 INFO L208 MainTranslator]: Completed translation [2022-12-12 18:43:43,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:43 WrapperNode [2022-12-12 18:43:43,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 18:43:43,470 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 18:43:43,470 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 18:43:43,470 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 18:43:43,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:43" (1/1) ... [2022-12-12 18:43:43,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:43" (1/1) ... [2022-12-12 18:43:43,525 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2022-12-12 18:43:43,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 18:43:43,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 18:43:43,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 18:43:43,527 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 18:43:43,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:43" (1/1) ... [2022-12-12 18:43:43,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:43" (1/1) ... [2022-12-12 18:43:43,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:43" (1/1) ... [2022-12-12 18:43:43,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:43" (1/1) ... [2022-12-12 18:43:43,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:43" (1/1) ... [2022-12-12 18:43:43,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:43" (1/1) ... [2022-12-12 18:43:43,557 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:43" (1/1) ... [2022-12-12 18:43:43,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:43" (1/1) ... [2022-12-12 18:43:43,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 18:43:43,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 18:43:43,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 18:43:43,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 18:43:43,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:43" (1/1) ... [2022-12-12 18:43:43,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 18:43:43,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 18:43:43,599 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) [2022-12-12 18:43:43,612 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 [2022-12-12 18:43:43,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 18:43:43,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 18:43:43,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 18:43:43,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 18:43:43,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 18:43:43,642 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 18:43:43,642 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 18:43:43,642 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 18:43:43,642 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 18:43:43,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 18:43:43,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 18:43:43,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 18:43:43,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 18:43:43,644 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 18:43:43,793 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 18:43:43,795 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 18:43:43,944 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 18:43:43,950 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 18:43:43,950 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 18:43:43,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 06:43:43 BoogieIcfgContainer [2022-12-12 18:43:43,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 18:43:43,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 18:43:43,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 18:43:43,962 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 18:43:43,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 06:43:42" (1/3) ... [2022-12-12 18:43:43,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5810104d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 06:43:43, skipping insertion in model container [2022-12-12 18:43:43,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:43" (2/3) ... [2022-12-12 18:43:43,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5810104d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 06:43:43, skipping insertion in model container [2022-12-12 18:43:43,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 06:43:43" (3/3) ... [2022-12-12 18:43:43,964 INFO L112 eAbstractionObserver]: Analyzing ICFG safe029_tso.i [2022-12-12 18:43:43,982 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 18:43:43,982 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 18:43:43,982 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 18:43:44,043 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 18:43:44,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 66 transitions, 142 flow [2022-12-12 18:43:44,123 INFO L130 PetriNetUnfolder]: 2/64 cut-off events. [2022-12-12 18:43:44,123 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 18:43:44,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 64 events. 2/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2022-12-12 18:43:44,128 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 66 transitions, 142 flow [2022-12-12 18:43:44,134 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 54 transitions, 114 flow [2022-12-12 18:43:44,136 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 18:43:44,165 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 54 transitions, 114 flow [2022-12-12 18:43:44,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 54 transitions, 114 flow [2022-12-12 18:43:44,185 INFO L130 PetriNetUnfolder]: 1/54 cut-off events. [2022-12-12 18:43:44,186 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 18:43:44,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 1/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 27 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2022-12-12 18:43:44,188 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 54 transitions, 114 flow [2022-12-12 18:43:44,188 INFO L226 LiptonReduction]: Number of co-enabled transitions 540 [2022-12-12 18:43:45,966 INFO L241 LiptonReduction]: Total number of compositions: 42 [2022-12-12 18:43:45,986 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 18:43:45,991 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3fc2aba5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 18:43:45,992 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-12 18:43:45,995 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-12-12 18:43:45,995 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 18:43:45,995 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:43:45,996 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-12 18:43:45,996 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 18:43:46,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:43:46,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1741486032, now seen corresponding path program 1 times [2022-12-12 18:43:46,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:43:46,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097741760] [2022-12-12 18:43:46,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:43:46,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:43:46,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:43:46,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:43:46,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:43:46,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097741760] [2022-12-12 18:43:46,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097741760] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:43:46,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:43:46,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 18:43:46,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720392622] [2022-12-12 18:43:46,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:43:46,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 18:43:46,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:43:46,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 18:43:46,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 18:43:46,438 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2022-12-12 18:43:46,439 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-12-12 18:43:46,440 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:43:46,440 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2022-12-12 18:43:46,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:43:46,504 INFO L130 PetriNetUnfolder]: 105/225 cut-off events. [2022-12-12 18:43:46,504 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 18:43:46,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 449 conditions, 225 events. 105/225 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 958 event pairs, 61 based on Foata normal form. 22/209 useless extension candidates. Maximal degree in co-relation 439. Up to 146 conditions per place. [2022-12-12 18:43:46,507 INFO L137 encePairwiseOnDemand]: 12/19 looper letters, 20 selfloop transitions, 5 changer transitions 0/29 dead transitions. [2022-12-12 18:43:46,507 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 29 transitions, 117 flow [2022-12-12 18:43:46,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:43:46,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:43:46,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions. [2022-12-12 18:43:46,517 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7017543859649122 [2022-12-12 18:43:46,520 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 2 predicate places. [2022-12-12 18:43:46,520 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 29 transitions, 117 flow [2022-12-12 18:43:46,521 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 29 transitions, 117 flow [2022-12-12 18:43:46,522 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 29 transitions, 117 flow [2022-12-12 18:43:46,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-12-12 18:43:46,523 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:43:46,523 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:43:46,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 18:43:46,523 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 18:43:46,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:43:46,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1848507778, now seen corresponding path program 1 times [2022-12-12 18:43:46,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:43:46,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413941196] [2022-12-12 18:43:46,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:43:46,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:43:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:43:46,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:43:46,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:43:46,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413941196] [2022-12-12 18:43:46,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413941196] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:43:46,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:43:46,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 18:43:46,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766072587] [2022-12-12 18:43:46,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:43:46,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 18:43:46,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:43:46,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 18:43:46,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 18:43:46,676 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 19 [2022-12-12 18:43:46,676 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 29 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-12-12 18:43:46,676 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:43:46,676 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 19 [2022-12-12 18:43:46,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:43:46,752 INFO L130 PetriNetUnfolder]: 101/224 cut-off events. [2022-12-12 18:43:46,752 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-12-12 18:43:46,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 224 events. 101/224 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 977 event pairs, 21 based on Foata normal form. 1/188 useless extension candidates. Maximal degree in co-relation 604. Up to 165 conditions per place. [2022-12-12 18:43:46,755 INFO L137 encePairwiseOnDemand]: 15/19 looper letters, 26 selfloop transitions, 4 changer transitions 0/36 dead transitions. [2022-12-12 18:43:46,755 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 36 transitions, 208 flow [2022-12-12 18:43:46,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:43:46,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:43:46,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2022-12-12 18:43:46,757 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6140350877192983 [2022-12-12 18:43:46,758 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 4 predicate places. [2022-12-12 18:43:46,758 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 36 transitions, 208 flow [2022-12-12 18:43:46,764 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 36 transitions, 208 flow [2022-12-12 18:43:46,764 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 36 transitions, 208 flow [2022-12-12 18:43:46,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-12-12 18:43:46,765 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:43:46,765 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:43:46,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 18:43:46,766 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 18:43:46,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:43:46,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1848507468, now seen corresponding path program 1 times [2022-12-12 18:43:46,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:43:46,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821886599] [2022-12-12 18:43:46,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:43:46,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:43:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:43:46,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:43:46,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:43:46,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821886599] [2022-12-12 18:43:46,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821886599] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:43:46,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:43:46,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:43:46,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28627122] [2022-12-12 18:43:46,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:43:46,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:43:46,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:43:46,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:43:46,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:43:46,921 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2022-12-12 18:43:46,921 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 36 transitions, 208 flow. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2022-12-12 18:43:46,921 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:43:46,921 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2022-12-12 18:43:46,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:43:47,001 INFO L130 PetriNetUnfolder]: 97/215 cut-off events. [2022-12-12 18:43:47,002 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-12-12 18:43:47,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 786 conditions, 215 events. 97/215 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 896 event pairs, 18 based on Foata normal form. 1/180 useless extension candidates. Maximal degree in co-relation 770. Up to 158 conditions per place. [2022-12-12 18:43:47,007 INFO L137 encePairwiseOnDemand]: 13/19 looper letters, 25 selfloop transitions, 9 changer transitions 0/38 dead transitions. [2022-12-12 18:43:47,007 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 38 transitions, 286 flow [2022-12-12 18:43:47,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 18:43:47,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 18:43:47,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 47 transitions. [2022-12-12 18:43:47,009 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.618421052631579 [2022-12-12 18:43:47,010 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 7 predicate places. [2022-12-12 18:43:47,010 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 38 transitions, 286 flow [2022-12-12 18:43:47,012 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 38 transitions, 286 flow [2022-12-12 18:43:47,012 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 38 transitions, 286 flow [2022-12-12 18:43:47,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2022-12-12 18:43:47,012 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:43:47,012 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:43:47,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 18:43:47,013 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 18:43:47,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:43:47,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1469165882, now seen corresponding path program 1 times [2022-12-12 18:43:47,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:43:47,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375062321] [2022-12-12 18:43:47,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:43:47,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:43:47,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:43:47,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:43:47,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:43:47,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375062321] [2022-12-12 18:43:47,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375062321] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:43:47,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:43:47,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:43:47,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589970202] [2022-12-12 18:43:47,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:43:47,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:43:47,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:43:47,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:43:47,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:43:47,130 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2022-12-12 18:43:47,130 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 38 transitions, 286 flow. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2022-12-12 18:43:47,131 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:43:47,131 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2022-12-12 18:43:47,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:43:47,222 INFO L130 PetriNetUnfolder]: 119/274 cut-off events. [2022-12-12 18:43:47,222 INFO L131 PetriNetUnfolder]: For 179/181 co-relation queries the response was YES. [2022-12-12 18:43:47,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1186 conditions, 274 events. 119/274 cut-off events. For 179/181 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1331 event pairs, 9 based on Foata normal form. 11/243 useless extension candidates. Maximal degree in co-relation 1167. Up to 196 conditions per place. [2022-12-12 18:43:47,224 INFO L137 encePairwiseOnDemand]: 10/19 looper letters, 24 selfloop transitions, 11 changer transitions 35/74 dead transitions. [2022-12-12 18:43:47,224 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 74 transitions, 673 flow [2022-12-12 18:43:47,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 18:43:47,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 18:43:47,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 63 transitions. [2022-12-12 18:43:47,228 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6631578947368421 [2022-12-12 18:43:47,229 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 11 predicate places. [2022-12-12 18:43:47,229 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 74 transitions, 673 flow [2022-12-12 18:43:47,230 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 39 transitions, 369 flow [2022-12-12 18:43:47,230 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 39 transitions, 369 flow [2022-12-12 18:43:47,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2022-12-12 18:43:47,231 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:43:47,231 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:43:47,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 18:43:47,231 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 18:43:47,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:43:47,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1107464087, now seen corresponding path program 1 times [2022-12-12 18:43:47,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:43:47,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042445415] [2022-12-12 18:43:47,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:43:47,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:43:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:43:47,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:43:47,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:43:47,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042445415] [2022-12-12 18:43:47,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042445415] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:43:47,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:43:47,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 18:43:47,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415373322] [2022-12-12 18:43:47,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:43:47,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 18:43:47,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:43:47,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 18:43:47,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 18:43:47,315 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2022-12-12 18:43:47,315 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 39 transitions, 369 flow. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2022-12-12 18:43:47,315 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:43:47,315 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2022-12-12 18:43:47,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:43:47,382 INFO L130 PetriNetUnfolder]: 51/134 cut-off events. [2022-12-12 18:43:47,382 INFO L131 PetriNetUnfolder]: For 136/144 co-relation queries the response was YES. [2022-12-12 18:43:47,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 730 conditions, 134 events. 51/134 cut-off events. For 136/144 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 535 event pairs, 0 based on Foata normal form. 14/128 useless extension candidates. Maximal degree in co-relation 708. Up to 105 conditions per place. [2022-12-12 18:43:47,383 INFO L137 encePairwiseOnDemand]: 10/19 looper letters, 0 selfloop transitions, 0 changer transitions 47/47 dead transitions. [2022-12-12 18:43:47,383 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 47 transitions, 523 flow [2022-12-12 18:43:47,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 18:43:47,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 18:43:47,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 57 transitions. [2022-12-12 18:43:47,385 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-12 18:43:47,385 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 11 predicate places. [2022-12-12 18:43:47,386 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 47 transitions, 523 flow [2022-12-12 18:43:47,386 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-12 18:43:47,386 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-12 18:43:47,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2022-12-12 18:43:47,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-12 18:43:47,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-12 18:43:47,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-12 18:43:47,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 18:43:47,390 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-12 18:43:47,393 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 18:43:47,393 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 18:43:47,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 06:43:47 BasicIcfg [2022-12-12 18:43:47,396 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 18:43:47,397 INFO L158 Benchmark]: Toolchain (without parser) took 4442.56ms. Allocated memory was 188.7MB in the beginning and 265.3MB in the end (delta: 76.5MB). Free memory was 163.8MB in the beginning and 127.0MB in the end (delta: 36.9MB). Peak memory consumption was 114.5MB. Max. memory is 8.0GB. [2022-12-12 18:43:47,397 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 188.7MB. Free memory is still 165.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 18:43:47,397 INFO L158 Benchmark]: CACSL2BoogieTranslator took 513.17ms. Allocated memory is still 188.7MB. Free memory was 163.8MB in the beginning and 141.9MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-12-12 18:43:47,398 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.85ms. Allocated memory is still 188.7MB. Free memory was 141.3MB in the beginning and 139.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 18:43:47,398 INFO L158 Benchmark]: Boogie Preprocessor took 33.52ms. Allocated memory is still 188.7MB. Free memory was 139.8MB in the beginning and 138.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 18:43:47,398 INFO L158 Benchmark]: RCFGBuilder took 391.31ms. Allocated memory is still 188.7MB. Free memory was 138.2MB in the beginning and 125.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-12 18:43:47,399 INFO L158 Benchmark]: TraceAbstraction took 3437.54ms. Allocated memory was 188.7MB in the beginning and 265.3MB in the end (delta: 76.5MB). Free memory was 124.6MB in the beginning and 127.0MB in the end (delta: -2.4MB). Peak memory consumption was 75.7MB. Max. memory is 8.0GB. [2022-12-12 18:43:47,400 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 188.7MB. Free memory is still 165.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 513.17ms. Allocated memory is still 188.7MB. Free memory was 163.8MB in the beginning and 141.9MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.85ms. Allocated memory is still 188.7MB. Free memory was 141.3MB in the beginning and 139.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.52ms. Allocated memory is still 188.7MB. Free memory was 139.8MB in the beginning and 138.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 391.31ms. Allocated memory is still 188.7MB. Free memory was 138.2MB in the beginning and 125.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3437.54ms. Allocated memory was 188.7MB in the beginning and 265.3MB in the end (delta: 76.5MB). Free memory was 124.6MB in the beginning and 127.0MB in the end (delta: -2.4MB). Peak memory consumption was 75.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 60 PlacesBefore, 25 PlacesAfterwards, 54 TransitionsBefore, 19 TransitionsAfterwards, 540 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 17 TrivialYvCompositions, 24 ConcurrentYvCompositions, 0 ChoiceCompositions, 42 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 543, independent: 502, independent conditional: 502, independent unconditional: 0, dependent: 41, dependent conditional: 41, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 543, independent: 502, independent conditional: 0, independent unconditional: 502, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 543, independent: 502, independent conditional: 0, independent unconditional: 502, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 543, independent: 502, independent conditional: 0, independent unconditional: 502, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 395, independent: 368, independent conditional: 0, independent unconditional: 368, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 395, independent: 357, independent conditional: 0, independent unconditional: 357, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 38, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 91, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 543, independent: 134, independent conditional: 0, independent unconditional: 134, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 395, unknown conditional: 0, unknown unconditional: 395] , Statistics on independence cache: Total cache size (in pairs): 620, Positive cache size: 593, Positive conditional cache size: 0, Positive unconditional cache size: 593, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 18]: 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 with 1 thread instances CFG has 5 procedures, 81 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 199 IncrementalHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 8 mSDtfsCounter, 199 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=369occurred in iteration=4, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 827 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 155 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! [2022-12-12 18:43:47,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...