/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/ldv-races/race-2_4-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 18:44:24,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 18:44:24,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 18:44:24,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 18:44:24,064 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 18:44:24,066 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 18:44:24,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 18:44:24,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 18:44:24,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 18:44:24,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 18:44:24,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 18:44:24,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 18:44:24,080 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 18:44:24,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 18:44:24,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 18:44:24,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 18:44:24,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 18:44:24,087 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 18:44:24,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 18:44:24,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 18:44:24,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 18:44:24,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 18:44:24,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 18:44:24,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 18:44:24,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 18:44:24,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 18:44:24,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 18:44:24,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 18:44:24,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 18:44:24,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 18:44:24,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 18:44:24,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 18:44:24,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 18:44:24,105 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 18:44:24,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 18:44:24,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 18:44:24,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 18:44:24,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 18:44:24,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 18:44:24,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 18:44:24,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 18:44:24,108 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 18:44:24,132 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 18:44:24,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 18:44:24,133 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 18:44:24,133 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 18:44:24,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 18:44:24,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 18:44:24,134 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 18:44:24,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 18:44:24,135 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 18:44:24,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 18:44:24,135 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 18:44:24,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 18:44:24,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 18:44:24,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 18:44:24,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 18:44:24,136 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 18:44:24,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 18:44:24,136 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 18:44:24,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 18:44:24,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 18:44:24,136 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 18:44:24,136 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 18:44:24,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 18:44:24,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 18:44:24,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 18:44:24,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 18:44:24,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 18:44:24,137 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 18:44:24,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 18:44:24,137 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 18:44:24,137 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-12 18:44:24,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 18:44:24,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 18:44:24,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 18:44:24,420 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 18:44:24,421 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 18:44:24,421 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_4-container_of.i [2022-12-12 18:44:25,505 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 18:44:25,769 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 18:44:25,769 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_4-container_of.i [2022-12-12 18:44:25,787 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6a9a13ca/4431308a0ad14a9cbb6b5e9cb3322c37/FLAGb27c7ab66 [2022-12-12 18:44:25,805 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6a9a13ca/4431308a0ad14a9cbb6b5e9cb3322c37 [2022-12-12 18:44:25,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 18:44:25,808 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 18:44:25,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 18:44:25,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 18:44:25,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 18:44:25,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 06:44:25" (1/1) ... [2022-12-12 18:44:25,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b371c84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:44:25, skipping insertion in model container [2022-12-12 18:44:25,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 06:44:25" (1/1) ... [2022-12-12 18:44:25,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 18:44:25,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 18:44:25,988 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-12 18:44:26,276 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_4-container_of.i[75002,75015] [2022-12-12 18:44:26,284 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:44:26,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:44:26,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:44:26,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:44:26,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:44:26,286 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:44:26,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:44:26,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:44:26,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:44:26,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:44:26,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:44:26,303 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:44:26,303 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:44:26,303 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:44:26,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 18:44:26,316 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 18:44:26,324 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-12 18:44:26,344 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_4-container_of.i[75002,75015] [2022-12-12 18:44:26,345 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:44:26,346 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:44:26,346 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:44:26,346 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:44:26,346 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:44:26,347 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:44:26,352 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:44:26,352 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:44:26,352 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:44:26,353 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:44:26,353 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:44:26,353 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:44:26,353 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:44:26,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:44:26,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 18:44:26,431 INFO L208 MainTranslator]: Completed translation [2022-12-12 18:44:26,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:44:26 WrapperNode [2022-12-12 18:44:26,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 18:44:26,432 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 18:44:26,432 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 18:44:26,432 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 18:44:26,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:44:26" (1/1) ... [2022-12-12 18:44:26,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:44:26" (1/1) ... [2022-12-12 18:44:26,503 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-12-12 18:44:26,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 18:44:26,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 18:44:26,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 18:44:26,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 18:44:26,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:44:26" (1/1) ... [2022-12-12 18:44:26,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:44:26" (1/1) ... [2022-12-12 18:44:26,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:44:26" (1/1) ... [2022-12-12 18:44:26,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:44:26" (1/1) ... [2022-12-12 18:44:26,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:44:26" (1/1) ... [2022-12-12 18:44:26,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:44:26" (1/1) ... [2022-12-12 18:44:26,550 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:44:26" (1/1) ... [2022-12-12 18:44:26,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:44:26" (1/1) ... [2022-12-12 18:44:26,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 18:44:26,556 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 18:44:26,556 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 18:44:26,556 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 18:44:26,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:44:26" (1/1) ... [2022-12-12 18:44:26,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 18:44:26,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 18:44:26,618 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 18:44:26,627 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 18:44:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 18:44:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 18:44:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 18:44:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 18:44:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-12 18:44:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 18:44:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-12 18:44:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 18:44:26,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 18:44:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-12-12 18:44:26,661 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-12-12 18:44:26,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 18:44:26,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 18:44:26,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 18:44:26,662 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 18:44:26,951 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 18:44:26,953 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 18:44:27,181 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 18:44:27,223 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 18:44:27,223 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 18:44:27,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 06:44:27 BoogieIcfgContainer [2022-12-12 18:44:27,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 18:44:27,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 18:44:27,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 18:44:27,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 18:44:27,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 06:44:25" (1/3) ... [2022-12-12 18:44:27,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16afbe2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 06:44:27, skipping insertion in model container [2022-12-12 18:44:27,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:44:26" (2/3) ... [2022-12-12 18:44:27,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16afbe2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 06:44:27, skipping insertion in model container [2022-12-12 18:44:27,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 06:44:27" (3/3) ... [2022-12-12 18:44:27,232 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2022-12-12 18:44:27,245 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 18:44:27,245 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-12 18:44:27,246 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 18:44:27,294 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-12 18:44:27,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 158 places, 158 transitions, 332 flow [2022-12-12 18:44:27,382 INFO L130 PetriNetUnfolder]: 8/202 cut-off events. [2022-12-12 18:44:27,382 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 18:44:27,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 202 events. 8/202 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 393 event pairs, 0 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 109. Up to 4 conditions per place. [2022-12-12 18:44:27,386 INFO L82 GeneralOperation]: Start removeDead. Operand has 158 places, 158 transitions, 332 flow [2022-12-12 18:44:27,389 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 148 places, 146 transitions, 304 flow [2022-12-12 18:44:27,390 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 18:44:27,402 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 148 places, 146 transitions, 304 flow [2022-12-12 18:44:27,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 148 places, 146 transitions, 304 flow [2022-12-12 18:44:27,461 INFO L130 PetriNetUnfolder]: 5/183 cut-off events. [2022-12-12 18:44:27,461 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 18:44:27,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 183 events. 5/183 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 344 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 99. Up to 4 conditions per place. [2022-12-12 18:44:27,464 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 148 places, 146 transitions, 304 flow [2022-12-12 18:44:27,464 INFO L226 LiptonReduction]: Number of co-enabled transitions 2704 [2022-12-12 18:45:14,731 INFO L241 LiptonReduction]: Total number of compositions: 113 [2022-12-12 18:45:14,742 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 18:45:14,746 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;@13d161c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 18:45:14,747 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-12 18:45:14,750 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2022-12-12 18:45:14,750 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 18:45:14,750 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:45:14,750 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-12 18:45:14,751 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-12 18:45:14,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:45:14,755 INFO L85 PathProgramCache]: Analyzing trace with hash 584666, now seen corresponding path program 1 times [2022-12-12 18:45:14,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:45:14,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528797159] [2022-12-12 18:45:14,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:45:14,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:45:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:45:15,032 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 18:45:15,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:45:15,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528797159] [2022-12-12 18:45:15,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528797159] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:45:15,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:45:15,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 18:45:15,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854848884] [2022-12-12 18:45:15,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:45:15,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-12 18:45:15,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:45:15,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-12 18:45:15,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-12 18:45:15,058 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2022-12-12 18:45:15,059 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 53 transitions, 118 flow. Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 18:45:15,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:45:15,060 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2022-12-12 18:45:15,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:45:15,489 INFO L130 PetriNetUnfolder]: 2119/3865 cut-off events. [2022-12-12 18:45:15,490 INFO L131 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2022-12-12 18:45:15,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7290 conditions, 3865 events. 2119/3865 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 341. Compared 28504 event pairs, 2118 based on Foata normal form. 111/2071 useless extension candidates. Maximal degree in co-relation 7150. Up to 3387 conditions per place. [2022-12-12 18:45:15,509 INFO L137 encePairwiseOnDemand]: 52/53 looper letters, 41 selfloop transitions, 0 changer transitions 0/52 dead transitions. [2022-12-12 18:45:15,510 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 52 transitions, 198 flow [2022-12-12 18:45:15,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-12 18:45:15,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-12 18:45:15,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 64 transitions. [2022-12-12 18:45:15,519 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6037735849056604 [2022-12-12 18:45:15,522 INFO L295 CegarLoopForPetriNet]: 57 programPoint places, 1 predicate places. [2022-12-12 18:45:15,523 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 52 transitions, 198 flow [2022-12-12 18:45:15,535 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 52 transitions, 198 flow [2022-12-12 18:45:15,536 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 52 transitions, 198 flow [2022-12-12 18:45:15,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 18:45:15,538 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:45:15,538 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-12 18:45:15,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 18:45:15,542 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-12 18:45:15,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:45:15,548 INFO L85 PathProgramCache]: Analyzing trace with hash 18154371, now seen corresponding path program 1 times [2022-12-12 18:45:15,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:45:15,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721949028] [2022-12-12 18:45:15,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:45:15,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:45:15,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:45:15,675 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 18:45:15,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:45:15,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721949028] [2022-12-12 18:45:15,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721949028] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:45:15,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:45:15,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:45:15,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926539689] [2022-12-12 18:45:15,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:45:15,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 18:45:15,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:45:15,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 18:45:15,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 18:45:15,677 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2022-12-12 18:45:15,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 52 transitions, 198 flow. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 18:45:15,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:45:15,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2022-12-12 18:45:15,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:45:15,978 INFO L130 PetriNetUnfolder]: 2118/3774 cut-off events. [2022-12-12 18:45:15,979 INFO L131 PetriNetUnfolder]: For 346/446 co-relation queries the response was YES. [2022-12-12 18:45:15,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10582 conditions, 3774 events. 2118/3774 cut-off events. For 346/446 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 26194 event pairs, 1322 based on Foata normal form. 0/1890 useless extension candidates. Maximal degree in co-relation 10393. Up to 3385 conditions per place. [2022-12-12 18:45:15,997 INFO L137 encePairwiseOnDemand]: 50/53 looper letters, 62 selfloop transitions, 2 changer transitions 0/75 dead transitions. [2022-12-12 18:45:15,997 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 75 transitions, 418 flow [2022-12-12 18:45:15,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:45:15,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:45:15,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 98 transitions. [2022-12-12 18:45:15,999 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6163522012578616 [2022-12-12 18:45:15,999 INFO L295 CegarLoopForPetriNet]: 57 programPoint places, 3 predicate places. [2022-12-12 18:45:16,000 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 75 transitions, 418 flow [2022-12-12 18:45:16,015 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 75 transitions, 418 flow [2022-12-12 18:45:16,016 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 75 transitions, 418 flow [2022-12-12 18:45:16,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 18:45:16,016 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:45:16,016 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-12 18:45:16,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 18:45:16,016 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-12 18:45:16,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:45:16,017 INFO L85 PathProgramCache]: Analyzing trace with hash 18119010, now seen corresponding path program 1 times [2022-12-12 18:45:16,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:45:16,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225462564] [2022-12-12 18:45:16,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:45:16,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:45:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:45:16,163 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 18:45:16,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:45:16,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225462564] [2022-12-12 18:45:16,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225462564] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:45:16,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:45:16,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:45:16,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084848079] [2022-12-12 18:45:16,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:45:16,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 18:45:16,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:45:16,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 18:45:16,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 18:45:16,165 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 53 [2022-12-12 18:45:16,165 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 75 transitions, 418 flow. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 18:45:16,165 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:45:16,165 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 53 [2022-12-12 18:45:16,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:45:16,691 INFO L130 PetriNetUnfolder]: 4079/6649 cut-off events. [2022-12-12 18:45:16,691 INFO L131 PetriNetUnfolder]: For 1828/1828 co-relation queries the response was YES. [2022-12-12 18:45:16,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23870 conditions, 6649 events. 4079/6649 cut-off events. For 1828/1828 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 41691 event pairs, 2370 based on Foata normal form. 0/3847 useless extension candidates. Maximal degree in co-relation 23553. Up to 5339 conditions per place. [2022-12-12 18:45:16,729 INFO L137 encePairwiseOnDemand]: 46/53 looper letters, 88 selfloop transitions, 7 changer transitions 0/99 dead transitions. [2022-12-12 18:45:16,729 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 99 transitions, 736 flow [2022-12-12 18:45:16,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:45:16,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:45:16,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2022-12-12 18:45:16,733 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5408805031446541 [2022-12-12 18:45:16,734 INFO L295 CegarLoopForPetriNet]: 57 programPoint places, 5 predicate places. [2022-12-12 18:45:16,734 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 99 transitions, 736 flow [2022-12-12 18:45:16,755 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 99 transitions, 736 flow [2022-12-12 18:45:16,756 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 99 transitions, 736 flow [2022-12-12 18:45:16,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 18:45:16,756 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:45:16,756 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-12 18:45:16,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 18:45:16,756 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-12 18:45:16,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:45:16,757 INFO L85 PathProgramCache]: Analyzing trace with hash 561688745, now seen corresponding path program 1 times [2022-12-12 18:45:16,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:45:16,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996719181] [2022-12-12 18:45:16,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:45:16,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:45:16,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:45:16,881 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 18:45:16,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:45:16,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996719181] [2022-12-12 18:45:16,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996719181] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:45:16,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:45:16,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:45:16,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624982137] [2022-12-12 18:45:16,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:45:16,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 18:45:16,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:45:16,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 18:45:16,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 18:45:16,884 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 53 [2022-12-12 18:45:16,885 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 99 transitions, 736 flow. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 18:45:16,885 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:45:16,885 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 53 [2022-12-12 18:45:16,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:45:17,440 INFO L130 PetriNetUnfolder]: 4218/6932 cut-off events. [2022-12-12 18:45:17,441 INFO L131 PetriNetUnfolder]: For 2136/2136 co-relation queries the response was YES. [2022-12-12 18:45:17,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31664 conditions, 6932 events. 4218/6932 cut-off events. For 2136/2136 co-relation queries the response was YES. Maximal size of possible extension queue 398. Compared 44672 event pairs, 2427 based on Foata normal form. 241/4198 useless extension candidates. Maximal degree in co-relation 31272. Up to 5693 conditions per place. [2022-12-12 18:45:17,469 INFO L137 encePairwiseOnDemand]: 47/53 looper letters, 124 selfloop transitions, 10 changer transitions 5/143 dead transitions. [2022-12-12 18:45:17,470 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 143 transitions, 1342 flow [2022-12-12 18:45:17,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:45:17,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:45:17,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 85 transitions. [2022-12-12 18:45:17,471 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5345911949685535 [2022-12-12 18:45:17,471 INFO L295 CegarLoopForPetriNet]: 57 programPoint places, 7 predicate places. [2022-12-12 18:45:17,472 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 143 transitions, 1342 flow [2022-12-12 18:45:17,495 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 138 transitions, 1292 flow [2022-12-12 18:45:17,495 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 138 transitions, 1292 flow [2022-12-12 18:45:17,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 18:45:17,496 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:45:17,496 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:45:17,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 18:45:17,496 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-12 18:45:17,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:45:17,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1982324636, now seen corresponding path program 1 times [2022-12-12 18:45:17,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:45:17,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536195635] [2022-12-12 18:45:17,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:45:17,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:45:17,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:45:17,601 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 18:45:17,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:45:17,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536195635] [2022-12-12 18:45:17,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536195635] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:45:17,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:45:17,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:45:17,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654450943] [2022-12-12 18:45:17,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:45:17,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 18:45:17,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:45:17,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 18:45:17,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 18:45:17,603 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 53 [2022-12-12 18:45:17,603 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 138 transitions, 1292 flow. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 18:45:17,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:45:17,603 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 53 [2022-12-12 18:45:17,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:45:18,231 INFO L130 PetriNetUnfolder]: 5044/8352 cut-off events. [2022-12-12 18:45:18,232 INFO L131 PetriNetUnfolder]: For 2580/2580 co-relation queries the response was YES. [2022-12-12 18:45:18,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45916 conditions, 8352 events. 5044/8352 cut-off events. For 2580/2580 co-relation queries the response was YES. Maximal size of possible extension queue 501. Compared 56651 event pairs, 1236 based on Foata normal form. 0/4953 useless extension candidates. Maximal degree in co-relation 45265. Up to 7050 conditions per place. [2022-12-12 18:45:18,270 INFO L137 encePairwiseOnDemand]: 45/53 looper letters, 156 selfloop transitions, 7 changer transitions 0/167 dead transitions. [2022-12-12 18:45:18,270 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 167 transitions, 1891 flow [2022-12-12 18:45:18,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:45:18,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:45:18,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 87 transitions. [2022-12-12 18:45:18,271 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5471698113207547 [2022-12-12 18:45:18,272 INFO L295 CegarLoopForPetriNet]: 57 programPoint places, 8 predicate places. [2022-12-12 18:45:18,272 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 167 transitions, 1891 flow [2022-12-12 18:45:18,303 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 167 transitions, 1891 flow [2022-12-12 18:45:18,303 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 167 transitions, 1891 flow [2022-12-12 18:45:18,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 18:45:18,303 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:45:18,303 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:45:18,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 18:45:18,304 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-12 18:45:18,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:45:18,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1322521937, now seen corresponding path program 1 times [2022-12-12 18:45:18,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:45:18,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788833854] [2022-12-12 18:45:18,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:45:18,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:45:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:45:18,408 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 18:45:18,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:45:18,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788833854] [2022-12-12 18:45:18,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788833854] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:45:18,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:45:18,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:45:18,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130125683] [2022-12-12 18:45:18,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:45:18,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 18:45:18,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:45:18,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 18:45:18,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 18:45:18,410 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 53 [2022-12-12 18:45:18,410 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 167 transitions, 1891 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 18:45:18,410 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:45:18,410 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 53 [2022-12-12 18:45:18,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:45:19,232 INFO L130 PetriNetUnfolder]: 5704/9432 cut-off events. [2022-12-12 18:45:19,232 INFO L131 PetriNetUnfolder]: For 3071/3071 co-relation queries the response was YES. [2022-12-12 18:45:19,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61256 conditions, 9432 events. 5704/9432 cut-off events. For 3071/3071 co-relation queries the response was YES. Maximal size of possible extension queue 597. Compared 64662 event pairs, 1294 based on Foata normal form. 0/5681 useless extension candidates. Maximal degree in co-relation 60242. Up to 8148 conditions per place. [2022-12-12 18:45:19,271 INFO L137 encePairwiseOnDemand]: 45/53 looper letters, 199 selfloop transitions, 14 changer transitions 0/217 dead transitions. [2022-12-12 18:45:19,272 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 217 transitions, 2892 flow [2022-12-12 18:45:19,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:45:19,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:45:19,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2022-12-12 18:45:19,273 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5408805031446541 [2022-12-12 18:45:19,273 INFO L295 CegarLoopForPetriNet]: 57 programPoint places, 10 predicate places. [2022-12-12 18:45:19,273 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 217 transitions, 2892 flow [2022-12-12 18:45:19,303 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 217 transitions, 2892 flow [2022-12-12 18:45:19,303 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 217 transitions, 2892 flow [2022-12-12 18:45:19,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 18:45:19,303 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:45:19,303 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:45:19,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 18:45:19,304 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-12 18:45:19,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:45:19,304 INFO L85 PathProgramCache]: Analyzing trace with hash -205561458, now seen corresponding path program 1 times [2022-12-12 18:45:19,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:45:19,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720384899] [2022-12-12 18:45:19,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:45:19,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:45:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 18:45:19,328 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-12 18:45:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 18:45:19,364 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-12 18:45:19,364 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-12 18:45:19,365 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-12-12 18:45:19,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-12-12 18:45:19,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2022-12-12 18:45:19,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-12-12 18:45:19,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-12-12 18:45:19,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-12-12 18:45:19,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-12-12 18:45:19,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2022-12-12 18:45:19,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 18:45:19,367 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:45:19,371 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 18:45:19,371 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 18:45:19,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 06:45:19 BasicIcfg [2022-12-12 18:45:19,391 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 18:45:19,392 INFO L158 Benchmark]: Toolchain (without parser) took 53583.73ms. Allocated memory was 223.3MB in the beginning and 596.6MB in the end (delta: 373.3MB). Free memory was 195.3MB in the beginning and 392.0MB in the end (delta: -196.7MB). Peak memory consumption was 176.6MB. Max. memory is 8.0GB. [2022-12-12 18:45:19,392 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 223.3MB. Free memory is still 199.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 18:45:19,392 INFO L158 Benchmark]: CACSL2BoogieTranslator took 621.60ms. Allocated memory is still 223.3MB. Free memory was 195.3MB in the beginning and 139.2MB in the end (delta: 56.1MB). Peak memory consumption was 55.6MB. Max. memory is 8.0GB. [2022-12-12 18:45:19,393 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.40ms. Allocated memory is still 223.3MB. Free memory was 139.2MB in the beginning and 135.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-12-12 18:45:19,393 INFO L158 Benchmark]: Boogie Preprocessor took 50.92ms. Allocated memory is still 223.3MB. Free memory was 135.5MB in the beginning and 132.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 18:45:19,393 INFO L158 Benchmark]: RCFGBuilder took 669.07ms. Allocated memory is still 223.3MB. Free memory was 132.9MB in the beginning and 104.6MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-12-12 18:45:19,393 INFO L158 Benchmark]: TraceAbstraction took 52164.62ms. Allocated memory was 223.3MB in the beginning and 596.6MB in the end (delta: 373.3MB). Free memory was 103.6MB in the beginning and 392.0MB in the end (delta: -288.5MB). Peak memory consumption was 85.3MB. Max. memory is 8.0GB. [2022-12-12 18:45:19,400 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 223.3MB. Free memory is still 199.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 621.60ms. Allocated memory is still 223.3MB. Free memory was 195.3MB in the beginning and 139.2MB in the end (delta: 56.1MB). Peak memory consumption was 55.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 71.40ms. Allocated memory is still 223.3MB. Free memory was 139.2MB in the beginning and 135.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 50.92ms. Allocated memory is still 223.3MB. Free memory was 135.5MB in the beginning and 132.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 669.07ms. Allocated memory is still 223.3MB. Free memory was 132.9MB in the beginning and 104.6MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 52164.62ms. Allocated memory was 223.3MB in the beginning and 596.6MB in the end (delta: 373.3MB). Free memory was 103.6MB in the beginning and 392.0MB in the end (delta: -288.5MB). Peak memory consumption was 85.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 47.3s, 148 PlacesBefore, 57 PlacesAfterwards, 146 TransitionsBefore, 53 TransitionsAfterwards, 2704 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 60 TrivialYvCompositions, 48 ConcurrentYvCompositions, 2 ChoiceCompositions, 113 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3102, independent: 2949, independent conditional: 2949, independent unconditional: 0, dependent: 85, dependent conditional: 85, dependent unconditional: 0, unknown: 68, unknown conditional: 68, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3102, independent: 2949, independent conditional: 0, independent unconditional: 2949, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 68, unknown conditional: 0, unknown unconditional: 68] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3102, independent: 2949, independent conditional: 0, independent unconditional: 2949, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 68, unknown conditional: 0, unknown unconditional: 68] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3102, independent: 2949, independent conditional: 0, independent unconditional: 2949, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 68, unknown conditional: 0, unknown unconditional: 68] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1894, independent: 1839, independent conditional: 0, independent unconditional: 1839, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 17, unknown conditional: 0, unknown unconditional: 17] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1894, independent: 1828, independent conditional: 0, independent unconditional: 1828, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 66, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 17, unknown conditional: 0, unknown unconditional: 17] , SemanticIndependenceRelation.Query Time [ms]: [ total: 37295, independent: 94, independent conditional: 0, independent unconditional: 94, dependent: 601, dependent conditional: 0, dependent unconditional: 601, unknown: 36600, unknown conditional: 0, unknown unconditional: 36600] ], Cache Queries: [ total: 3102, independent: 1110, independent conditional: 0, independent unconditional: 1110, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 1945, unknown conditional: 0, unknown unconditional: 1945] , Statistics on independence cache: Total cache size (in pairs): 3857, Positive cache size: 3819, Positive conditional cache size: 0, Positive unconditional cache size: 3819, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Unknown cache size: 17, Unknown conditional cache size: 0, Unknown unconditional cache size: 17, Eliminated conditions: 0, Maximal queried relation: -1 - CounterExampleResult [Line: 1675]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1676] 0 pthread_t t1,t2; [L1745] CALL, EXPR 0 my_drv_init() [L1739] 0 return 0; [L1745] RET, EXPR 0 my_drv_init() [L1745] 0 int ret = my_drv_init(); [L1746] COND TRUE 0 ret==0 [L1747] 0 int probe_ret; [L1748] 0 struct my_data data; [L1749] CALL, EXPR 0 my_drv_probe(&data) [L1706] 0 struct device *d = &data->dev; [L1708] 0 data->shared.a = 0 [L1709] 0 data->shared.b = 0 [L1710] 0 int res = __VERIFIER_nondet_int(); [L1711] COND FALSE 0 !(\read(res)) [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, pthread_create(&t1, ((void *)0), my_callback, (void *)d)=7, res=0, t1={3:0}, t2={4:0}] [L1689] 1 struct device *dev = (struct device*)arg; [L1690] 1 struct my_data *data; [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, pthread_create(&t2, ((void *)0), my_callback, (void *)d)=8, pthread_mutex_lock (&data->lock)=0, res=0, t1={3:0}, t2={4:0}] [L1715] 0 return 0; VAL [\result=0, __mptr={5:24}, arg={5:24}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, pthread_mutex_lock (&data->lock)=0, res=0, t1={3:0}, t2={4:0}] [L1749] RET, EXPR 0 my_drv_probe(&data) [L1749] 0 probe_ret = my_drv_probe(&data) [L1750] COND TRUE 0 probe_ret==0 [L1751] CALL 0 my_drv_disconnect(&data) [L1721] 0 void *status; [L1723] 0 data->shared.a = 3 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, pthread_mutex_lock (&data->lock)=0, status={6:0}, t1={3:0}, t2={4:0}] [L1726] 0 data->shared.b = 3 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, pthread_mutex_lock (&data->lock)=0, status={6:0}, t1={3:0}, t2={4:0}] [L1694] 1 data->shared.a = 1 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, t1={3:0}, t2={4:0}] [L1729] EXPR 0 data->shared.a [L1729] CALL 0 ldv_assert(data->shared.a==3) [L1675] COND TRUE 0 !expression [L1675] 0 reach_error() VAL [\old(expression)=0, __mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, expression=0, t1={3:0}, t2={4:0}] - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1713]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 168 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.1s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 52.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 47.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 107 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 107 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 587 IncrementalHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 24 mSDtfsCounter, 587 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2892occurred in iteration=6, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 50 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 150 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-12 18:45:19,473 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...