/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-NoLbe.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-8d0d62b [2022-12-06 16:42:06,506 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:42:06,508 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:42:06,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:42:06,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:42:06,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:42:06,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:42:06,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:42:06,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:42:06,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:42:06,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:42:06,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:42:06,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:42:06,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:42:06,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:42:06,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:42:06,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:42:06,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:42:06,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:42:06,544 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:42:06,545 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:42:06,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:42:06,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:42:06,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:42:06,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:42:06,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:42:06,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:42:06,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:42:06,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:42:06,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:42:06,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:42:06,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:42:06,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:42:06,553 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:42:06,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:42:06,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:42:06,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:42:06,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:42:06,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:42:06,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:42:06,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:42:06,570 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-NoLbe.epf [2022-12-06 16:42:06,592 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:42:06,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:42:06,594 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:42:06,594 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:42:06,594 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:42:06,595 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:42:06,595 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:42:06,595 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:42:06,595 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:42:06,595 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:42:06,596 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:42:06,596 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:42:06,596 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:42:06,596 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:42:06,596 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:42:06,596 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:42:06,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:42:06,597 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:42:06,597 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:42:06,597 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:42:06,597 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:42:06,597 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:42:06,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:42:06,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:42:06,597 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:42:06,597 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:42:06,597 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:42:06,598 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:42:06,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:42:06,598 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:42:06,598 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:42:06,598 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:42:06,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:42:06,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:42:06,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:42:06,935 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:42:06,935 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:42:06,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_4-container_of.i [2022-12-06 16:42:07,973 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:42:08,233 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:42:08,234 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_4-container_of.i [2022-12-06 16:42:08,276 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b9b5a877/2cbbbc37bf1e4aac80d5b4cb56fd0370/FLAG6eea76a14 [2022-12-06 16:42:08,290 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b9b5a877/2cbbbc37bf1e4aac80d5b4cb56fd0370 [2022-12-06 16:42:08,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:42:08,294 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:42:08,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:42:08,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:42:08,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:42:08,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:42:08" (1/1) ... [2022-12-06 16:42:08,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50189aa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:42:08, skipping insertion in model container [2022-12-06 16:42:08,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:42:08" (1/1) ... [2022-12-06 16:42:08,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:42:08,346 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:42:08,450 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-06 16:42:08,803 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] [2022-12-06 16:42:08,812 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:42:08,813 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:42:08,813 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:42:08,814 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:42:08,814 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:42:08,815 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:42:08,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:42:08,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:42:08,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:42:08,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:42:08,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:42:08,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:42:08,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:42:08,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:42:08,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:42:08,867 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:42:08,876 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-06 16:42:08,914 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] [2022-12-06 16:42:08,917 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:42:08,920 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:42:08,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:42:08,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:42:08,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:42:08,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:42:08,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:42:08,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:42:08,929 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:42:08,930 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:42:08,930 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:42:08,931 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:42:08,931 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:42:08,932 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:42:08,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:42:09,019 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:42:09,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:42:09 WrapperNode [2022-12-06 16:42:09,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:42:09,021 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:42:09,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:42:09,021 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:42:09,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:42:09" (1/1) ... [2022-12-06 16:42:09,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:42:09" (1/1) ... [2022-12-06 16:42:09,074 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-12-06 16:42:09,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:42:09,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:42:09,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:42:09,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:42:09,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:42:09" (1/1) ... [2022-12-06 16:42:09,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:42:09" (1/1) ... [2022-12-06 16:42:09,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:42:09" (1/1) ... [2022-12-06 16:42:09,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:42:09" (1/1) ... [2022-12-06 16:42:09,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:42:09" (1/1) ... [2022-12-06 16:42:09,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:42:09" (1/1) ... [2022-12-06 16:42:09,097 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:42:09" (1/1) ... [2022-12-06 16:42:09,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:42:09" (1/1) ... [2022-12-06 16:42:09,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:42:09,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:42:09,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:42:09,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:42:09,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:42:09" (1/1) ... [2022-12-06 16:42:09,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:42:09,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:42:09,141 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) [2022-12-06 16:42:09,147 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 [2022-12-06 16:42:09,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 16:42:09,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:42:09,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 16:42:09,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 16:42:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 16:42:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:42:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-06 16:42:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:42:09,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:42:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-12-06 16:42:09,194 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-12-06 16:42:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:42:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:42:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:42:09,195 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 16:42:09,445 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:42:09,447 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:42:09,623 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:42:09,652 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:42:09,653 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 16:42:09,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:42:09 BoogieIcfgContainer [2022-12-06 16:42:09,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:42:09,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:42:09,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:42:09,668 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:42:09,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:42:08" (1/3) ... [2022-12-06 16:42:09,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55d40846 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:42:09, skipping insertion in model container [2022-12-06 16:42:09,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:42:09" (2/3) ... [2022-12-06 16:42:09,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55d40846 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:42:09, skipping insertion in model container [2022-12-06 16:42:09,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:42:09" (3/3) ... [2022-12-06 16:42:09,670 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2022-12-06 16:42:09,681 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:42:09,681 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-06 16:42:09,681 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:42:09,731 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 16:42:09,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 158 places, 158 transitions, 332 flow [2022-12-06 16:42:09,841 INFO L130 PetriNetUnfolder]: 8/202 cut-off events. [2022-12-06 16:42:09,841 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 16:42:09,845 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. [2022-12-06 16:42:09,845 INFO L82 GeneralOperation]: Start removeDead. Operand has 158 places, 158 transitions, 332 flow [2022-12-06 16:42:09,852 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 148 places, 146 transitions, 304 flow [2022-12-06 16:42:09,863 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:42:09,870 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;@4ec14c20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:42:09,870 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-06 16:42:09,896 INFO L130 PetriNetUnfolder]: 0/81 cut-off events. [2022-12-06 16:42:09,896 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:42:09,897 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:42:09,897 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:42:09,898 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-06 16:42:09,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:42:09,901 INFO L85 PathProgramCache]: Analyzing trace with hash 453655506, now seen corresponding path program 1 times [2022-12-06 16:42:09,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:42:09,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507022644] [2022-12-06 16:42:09,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:42:09,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:42:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:42:10,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:42:10,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:42:10,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507022644] [2022-12-06 16:42:10,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507022644] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:42:10,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:42:10,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 16:42:10,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376972471] [2022-12-06 16:42:10,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:42:10,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 16:42:10,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:42:10,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 16:42:10,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-06 16:42:10,378 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 158 [2022-12-06 16:42:10,380 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 146 transitions, 304 flow. Second operand has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 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) [2022-12-06 16:42:10,380 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:42:10,380 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 158 [2022-12-06 16:42:10,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:42:10,469 INFO L130 PetriNetUnfolder]: 47/357 cut-off events. [2022-12-06 16:42:10,470 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-12-06 16:42:10,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 357 events. 47/357 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1493 event pairs, 47 based on Foata normal form. 8/333 useless extension candidates. Maximal degree in co-relation 339. Up to 104 conditions per place. [2022-12-06 16:42:10,473 INFO L137 encePairwiseOnDemand]: 150/158 looper letters, 22 selfloop transitions, 4 changer transitions 0/145 dead transitions. [2022-12-06 16:42:10,473 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 145 transitions, 354 flow [2022-12-06 16:42:10,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 16:42:10,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 16:42:10,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 805 transitions. [2022-12-06 16:42:10,484 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8491561181434599 [2022-12-06 16:42:10,486 INFO L294 CegarLoopForPetriNet]: 148 programPoint places, 2 predicate places. [2022-12-06 16:42:10,486 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 145 transitions, 354 flow [2022-12-06 16:42:10,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 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) [2022-12-06 16:42:10,487 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:42:10,487 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:42:10,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:42:10,487 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-06 16:42:10,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:42:10,488 INFO L85 PathProgramCache]: Analyzing trace with hash -878105208, now seen corresponding path program 1 times [2022-12-06 16:42:10,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:42:10,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866278448] [2022-12-06 16:42:10,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:42:10,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:42:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:42:10,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:42:10,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:42:10,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866278448] [2022-12-06 16:42:10,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866278448] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:42:10,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:42:10,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:42:10,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433326160] [2022-12-06 16:42:10,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:42:10,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:42:10,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:42:10,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:42:10,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:42:10,789 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 158 [2022-12-06 16:42:10,790 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 145 transitions, 354 flow. Second operand has 6 states, 6 states have (on average 91.66666666666667) internal successors, (550), 6 states have internal predecessors, (550), 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) [2022-12-06 16:42:10,790 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:42:10,790 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 158 [2022-12-06 16:42:10,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:42:11,298 INFO L130 PetriNetUnfolder]: 1049/2349 cut-off events. [2022-12-06 16:42:11,299 INFO L131 PetriNetUnfolder]: For 302/306 co-relation queries the response was YES. [2022-12-06 16:42:11,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4722 conditions, 2349 events. 1049/2349 cut-off events. For 302/306 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 16097 event pairs, 324 based on Foata normal form. 0/2229 useless extension candidates. Maximal degree in co-relation 4489. Up to 786 conditions per place. [2022-12-06 16:42:11,313 INFO L137 encePairwiseOnDemand]: 137/158 looper letters, 100 selfloop transitions, 48 changer transitions 0/235 dead transitions. [2022-12-06 16:42:11,314 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 235 transitions, 874 flow [2022-12-06 16:42:11,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-06 16:42:11,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-06 16:42:11,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1396 transitions. [2022-12-06 16:42:11,316 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6311030741410488 [2022-12-06 16:42:11,317 INFO L294 CegarLoopForPetriNet]: 148 programPoint places, 15 predicate places. [2022-12-06 16:42:11,317 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 235 transitions, 874 flow [2022-12-06 16:42:11,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 91.66666666666667) internal successors, (550), 6 states have internal predecessors, (550), 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) [2022-12-06 16:42:11,318 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:42:11,318 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:42:11,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:42:11,318 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-06 16:42:11,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:42:11,318 INFO L85 PathProgramCache]: Analyzing trace with hash 358018262, now seen corresponding path program 1 times [2022-12-06 16:42:11,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:42:11,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123053840] [2022-12-06 16:42:11,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:42:11,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:42:11,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:42:11,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:42:11,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:42:11,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123053840] [2022-12-06 16:42:11,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123053840] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:42:11,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:42:11,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:42:11,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431928257] [2022-12-06 16:42:11,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:42:11,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:42:11,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:42:11,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:42:11,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:42:11,521 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 158 [2022-12-06 16:42:11,522 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 235 transitions, 874 flow. Second operand has 6 states, 6 states have (on average 92.5) internal successors, (555), 6 states have internal predecessors, (555), 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) [2022-12-06 16:42:11,522 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:42:11,522 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 158 [2022-12-06 16:42:11,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:42:12,025 INFO L130 PetriNetUnfolder]: 1361/2909 cut-off events. [2022-12-06 16:42:12,025 INFO L131 PetriNetUnfolder]: For 668/778 co-relation queries the response was YES. [2022-12-06 16:42:12,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8244 conditions, 2909 events. 1361/2909 cut-off events. For 668/778 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 20301 event pairs, 339 based on Foata normal form. 48/2822 useless extension candidates. Maximal degree in co-relation 7948. Up to 1125 conditions per place. [2022-12-06 16:42:12,042 INFO L137 encePairwiseOnDemand]: 139/158 looper letters, 125 selfloop transitions, 45 changer transitions 104/356 dead transitions. [2022-12-06 16:42:12,042 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 356 transitions, 1962 flow [2022-12-06 16:42:12,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 16:42:12,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 16:42:12,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1205 transitions. [2022-12-06 16:42:12,045 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.635548523206751 [2022-12-06 16:42:12,046 INFO L294 CegarLoopForPetriNet]: 148 programPoint places, 26 predicate places. [2022-12-06 16:42:12,046 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 356 transitions, 1962 flow [2022-12-06 16:42:12,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.5) internal successors, (555), 6 states have internal predecessors, (555), 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) [2022-12-06 16:42:12,047 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:42:12,047 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:42:12,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 16:42:12,047 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-06 16:42:12,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:42:12,048 INFO L85 PathProgramCache]: Analyzing trace with hash 860538615, now seen corresponding path program 1 times [2022-12-06 16:42:12,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:42:12,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45663411] [2022-12-06 16:42:12,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:42:12,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:42:12,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:42:12,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:42:12,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:42:12,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45663411] [2022-12-06 16:42:12,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45663411] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:42:12,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:42:12,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 16:42:12,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192403472] [2022-12-06 16:42:12,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:42:12,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 16:42:12,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:42:12,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 16:42:12,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 16:42:12,219 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 158 [2022-12-06 16:42:12,220 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 356 transitions, 1962 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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) [2022-12-06 16:42:12,220 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:42:12,220 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 158 [2022-12-06 16:42:12,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:42:12,578 INFO L130 PetriNetUnfolder]: 1531/3271 cut-off events. [2022-12-06 16:42:12,578 INFO L131 PetriNetUnfolder]: For 2099/2279 co-relation queries the response was YES. [2022-12-06 16:42:12,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11293 conditions, 3271 events. 1531/3271 cut-off events. For 2099/2279 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 23286 event pairs, 332 based on Foata normal form. 0/3128 useless extension candidates. Maximal degree in co-relation 10899. Up to 1880 conditions per place. [2022-12-06 16:42:12,595 INFO L137 encePairwiseOnDemand]: 150/158 looper letters, 144 selfloop transitions, 11 changer transitions 104/375 dead transitions. [2022-12-06 16:42:12,595 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 375 transitions, 2571 flow [2022-12-06 16:42:12,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 16:42:12,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 16:42:12,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2022-12-06 16:42:12,597 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8270042194092827 [2022-12-06 16:42:12,597 INFO L294 CegarLoopForPetriNet]: 148 programPoint places, 28 predicate places. [2022-12-06 16:42:12,597 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 375 transitions, 2571 flow [2022-12-06 16:42:12,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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) [2022-12-06 16:42:12,598 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:42:12,598 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:42:12,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 16:42:12,598 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-06 16:42:12,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:42:12,598 INFO L85 PathProgramCache]: Analyzing trace with hash 906893654, now seen corresponding path program 1 times [2022-12-06 16:42:12,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:42:12,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66656808] [2022-12-06 16:42:12,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:42:12,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:42:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:42:12,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:42:12,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:42:12,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66656808] [2022-12-06 16:42:12,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66656808] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:42:12,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:42:12,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 16:42:12,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011787576] [2022-12-06 16:42:12,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:42:12,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 16:42:12,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:42:12,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 16:42:12,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 16:42:12,704 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 158 [2022-12-06 16:42:12,704 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 375 transitions, 2571 flow. Second operand has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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) [2022-12-06 16:42:12,704 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:42:12,704 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 158 [2022-12-06 16:42:12,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:42:13,090 INFO L130 PetriNetUnfolder]: 1631/3434 cut-off events. [2022-12-06 16:42:13,091 INFO L131 PetriNetUnfolder]: For 4112/4409 co-relation queries the response was YES. [2022-12-06 16:42:13,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14305 conditions, 3434 events. 1631/3434 cut-off events. For 4112/4409 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 24393 event pairs, 332 based on Foata normal form. 1/3278 useless extension candidates. Maximal degree in co-relation 13794. Up to 2021 conditions per place. [2022-12-06 16:42:13,114 INFO L137 encePairwiseOnDemand]: 150/158 looper letters, 163 selfloop transitions, 22 changer transitions 104/405 dead transitions. [2022-12-06 16:42:13,114 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 405 transitions, 3374 flow [2022-12-06 16:42:13,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 16:42:13,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 16:42:13,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 391 transitions. [2022-12-06 16:42:13,115 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8248945147679325 [2022-12-06 16:42:13,116 INFO L294 CegarLoopForPetriNet]: 148 programPoint places, 30 predicate places. [2022-12-06 16:42:13,116 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 405 transitions, 3374 flow [2022-12-06 16:42:13,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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) [2022-12-06 16:42:13,116 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:42:13,116 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:42:13,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 16:42:13,117 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-06 16:42:13,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:42:13,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1360494203, now seen corresponding path program 1 times [2022-12-06 16:42:13,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:42:13,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491875011] [2022-12-06 16:42:13,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:42:13,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:42:13,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 16:42:13,148 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-06 16:42:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 16:42:13,189 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-06 16:42:13,189 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-06 16:42:13,190 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-12-06 16:42:13,191 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-12-06 16:42:13,191 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2022-12-06 16:42:13,192 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-12-06 16:42:13,192 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-12-06 16:42:13,192 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-12-06 16:42:13,192 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-12-06 16:42:13,192 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2022-12-06 16:42:13,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 16:42:13,192 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-06 16:42:13,196 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:42:13,196 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:42:13,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:42:13 BasicIcfg [2022-12-06 16:42:13,261 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:42:13,261 INFO L158 Benchmark]: Toolchain (without parser) took 4967.55ms. Allocated memory was 203.4MB in the beginning and 371.2MB in the end (delta: 167.8MB). Free memory was 176.6MB in the beginning and 116.7MB in the end (delta: 59.8MB). Peak memory consumption was 228.6MB. Max. memory is 8.0GB. [2022-12-06 16:42:13,262 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 203.4MB. Free memory is still 180.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:42:13,262 INFO L158 Benchmark]: CACSL2BoogieTranslator took 724.53ms. Allocated memory is still 203.4MB. Free memory was 176.1MB in the beginning and 119.9MB in the end (delta: 56.2MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. [2022-12-06 16:42:13,262 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.83ms. Allocated memory is still 203.4MB. Free memory was 119.9MB in the beginning and 116.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-06 16:42:13,262 INFO L158 Benchmark]: Boogie Preprocessor took 27.26ms. Allocated memory is still 203.4MB. Free memory was 116.4MB in the beginning and 113.6MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-06 16:42:13,263 INFO L158 Benchmark]: RCFGBuilder took 561.54ms. Allocated memory was 203.4MB in the beginning and 244.3MB in the end (delta: 40.9MB). Free memory was 113.6MB in the beginning and 195.4MB in the end (delta: -81.7MB). Peak memory consumption was 7.8MB. Max. memory is 8.0GB. [2022-12-06 16:42:13,263 INFO L158 Benchmark]: TraceAbstraction took 3595.35ms. Allocated memory was 244.3MB in the beginning and 371.2MB in the end (delta: 126.9MB). Free memory was 194.8MB in the beginning and 116.7MB in the end (delta: 78.1MB). Peak memory consumption was 205.0MB. Max. memory is 8.0GB. [2022-12-06 16:42:13,264 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 203.4MB. Free memory is still 180.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 724.53ms. Allocated memory is still 203.4MB. Free memory was 176.1MB in the beginning and 119.9MB in the end (delta: 56.2MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.83ms. Allocated memory is still 203.4MB. Free memory was 119.9MB in the beginning and 116.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.26ms. Allocated memory is still 203.4MB. Free memory was 116.4MB in the beginning and 113.6MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 561.54ms. Allocated memory was 203.4MB in the beginning and 244.3MB in the end (delta: 40.9MB). Free memory was 113.6MB in the beginning and 195.4MB in the end (delta: -81.7MB). Peak memory consumption was 7.8MB. Max. memory is 8.0GB. * TraceAbstraction took 3595.35ms. Allocated memory was 244.3MB in the beginning and 371.2MB in the end (delta: 126.9MB). Free memory was 194.8MB in the beginning and 116.7MB in the end (delta: 78.1MB). Peak memory consumption was 205.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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; VAL [t1={3:0}, t2={4:0}] [L1745] CALL, EXPR 0 my_drv_init() [L1739] 0 return 0; VAL [\result=0, t1={3:0}, t2={4:0}] [L1745] RET, EXPR 0 my_drv_init() [L1745] 0 int ret = my_drv_init(); VAL [my_drv_init()=0, ret=0, t1={3:0}, t2={4:0}] [L1746] COND TRUE 0 ret==0 VAL [ret=0, t1={3:0}, t2={4:0}] [L1747] 0 int probe_ret; VAL [ret=0, t1={3:0}, t2={4:0}] [L1748] 0 struct my_data data; VAL [data={5:0}, ret=0, t1={3:0}, t2={4:0}] [L1749] CALL, EXPR 0 my_drv_probe(&data) [L1706] 0 struct device *d = &data->dev; VAL [d={5:24}, data={5:0}, data={5:0}, t1={3:0}, t2={4:0}] [L1708] 0 data->shared.a = 0 VAL [d={5:24}, data={5:0}, data={5:0}, t1={3:0}, t2={4:0}] [L1709] 0 data->shared.b = 0 VAL [d={5:24}, data={5:0}, data={5:0}, t1={3:0}, t2={4:0}] [L1710] 0 int res = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, d={5:24}, data={5:0}, data={5:0}, res=0, t1={3:0}, t2={4:0}] [L1711] COND FALSE 0 !(\read(res)) VAL [d={5:24}, data={5:0}, data={5:0}, res=0, t1={3:0}, t2={4:0}] [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)=0, res=0, t1={3:0}, t2={4:0}] [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, pthread_create(&t2, ((void *)0), my_callback, (void *)d)=1, res=0, t1={3:0}, t2={4:0}] [L1715] 0 return 0; VAL [\result=0, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, res=0, t1={3:0}, t2={4:0}] [L1749] RET, EXPR 0 my_drv_probe(&data) [L1749] 0 probe_ret = my_drv_probe(&data) VAL [arg={5:24}, data={5:0}, my_drv_probe(&data)=0, probe_ret=0, ret=0, t1={3:0}, t2={4:0}] [L1750] COND TRUE 0 probe_ret==0 [L1751] CALL 0 my_drv_disconnect(&data) [L1721] 0 void *status; VAL [arg={5:24}, data={5:0}, data={5:0}, status={7:0}, t1={3:0}, t2={4:0}] [L1723] 0 data->shared.a = 3 VAL [arg={5:24}, data={5:0}, data={5:0}, status={7:0}, t1={3:0}, t2={4:0}] [L1689] 1 struct device *dev = (struct device*)arg; VAL [arg={5:24}, arg={5:24}, dev={5:24}, t1={3:0}, t2={4:0}] [L1690] 1 struct my_data *data; VAL [arg={5:24}, arg={5:24}, dev={5:24}, t1={3:0}, t2={4:0}] [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, dev={5:24}, t1={3:0}, t2={4:0}] [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, 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}] [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}, status={7:0}, 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: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 226 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 226 mSDsluCounter, 415 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 261 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 600 IncrementalHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 154 mSDtfsCounter, 600 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3374occurred in iteration=5, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 351 NumberOfCodeBlocks, 351 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 277 ConstructedInterpolants, 0 QuantifiedInterpolants, 565 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 RESULT: Ultimate proved your program to be incorrect! [2022-12-06 16:42:13,281 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...