/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 20:28:33,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:28:33,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:28:33,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 20:28:33,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 20:28:33,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 20:28:33,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 20:28:33,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 20:28:33,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 20:28:33,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 20:28:33,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 20:28:33,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 20:28:33,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:28:33,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:28:33,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:28:33,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:28:33,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:28:33,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:28:33,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:28:33,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:28:33,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:28:33,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:28:33,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:28:33,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:28:33,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 20:28:33,824 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 20:28:33,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 20:28:33,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 20:28:33,825 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 20:28:33,826 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 20:28:33,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 20:28:33,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 20:28:33,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 20:28:33,829 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 20:28:33,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 20:28:33,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 20:28:33,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 20:28:33,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 20:28:33,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:28:33,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:28:33,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:28:33,835 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 [2022-12-05 20:28:33,860 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:28:33,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:28:33,862 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:28:33,862 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:28:33,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:28:33,863 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:28:33,863 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:28:33,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:28:33,863 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:28:33,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:28:33,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:28:33,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:28:33,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:28:33,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:28:33,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:28:33,865 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:28:33,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:28:33,865 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:28:33,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:28:33,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:28:33,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:28:33,865 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:28:33,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:28:33,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:28:33,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:28:33,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:28:33,866 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:28:33,866 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:28:33,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:28:33,866 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:28:33,866 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:28:34,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:28:34,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:28:34,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:28:34,129 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:28:34,129 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:28:34,130 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2022-12-05 20:28:35,048 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:28:35,325 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:28:35,326 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2022-12-05 20:28:35,372 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56bc5078e/27bfe42cf5124a079e7e08f7f17c58b4/FLAGaea6759e5 [2022-12-05 20:28:35,386 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56bc5078e/27bfe42cf5124a079e7e08f7f17c58b4 [2022-12-05 20:28:35,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:28:35,388 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:28:35,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:28:35,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:28:35,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:28:35,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:28:35" (1/1) ... [2022-12-05 20:28:35,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@677e5d24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:35, skipping insertion in model container [2022-12-05 20:28:35,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:28:35" (1/1) ... [2022-12-05 20:28:35,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:28:35,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:28:35,548 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-05 20:28:36,018 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_3-container_of.i[75002,75015] [2022-12-05 20:28:36,027 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:36,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:36,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:36,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:36,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:36,030 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:36,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:36,048 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:36,048 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:36,048 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:36,049 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:36,049 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:36,049 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:36,050 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:36,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:28:36,074 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:28:36,082 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-05 20:28:36,112 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_3-container_of.i[75002,75015] [2022-12-05 20:28:36,115 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:36,117 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:36,117 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:36,118 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:36,118 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:36,118 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:36,123 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:36,123 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:36,123 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:36,124 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:36,124 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:36,125 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:36,125 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:36,125 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:36,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:28:36,223 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:28:36,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:36 WrapperNode [2022-12-05 20:28:36,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:28:36,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:28:36,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:28:36,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:28:36,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:36" (1/1) ... [2022-12-05 20:28:36,259 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:36" (1/1) ... [2022-12-05 20:28:36,290 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-12-05 20:28:36,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:28:36,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:28:36,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:28:36,292 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:28:36,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:36" (1/1) ... [2022-12-05 20:28:36,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:36" (1/1) ... [2022-12-05 20:28:36,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:36" (1/1) ... [2022-12-05 20:28:36,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:36" (1/1) ... [2022-12-05 20:28:36,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:36" (1/1) ... [2022-12-05 20:28:36,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:36" (1/1) ... [2022-12-05 20:28:36,341 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:36" (1/1) ... [2022-12-05 20:28:36,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:36" (1/1) ... [2022-12-05 20:28:36,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:28:36,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:28:36,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:28:36,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:28:36,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:36" (1/1) ... [2022-12-05 20:28:36,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:28:36,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:28:36,385 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) [2022-12-05 20:28:36,391 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 [2022-12-05 20:28:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 20:28:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:28:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 20:28:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 20:28:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 20:28:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:28:36,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-05 20:28:36,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:28:36,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:28:36,419 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-12-05 20:28:36,419 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-12-05 20:28:36,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:28:36,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:28:36,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:28:36,420 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 20:28:36,701 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:28:36,703 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:28:36,944 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:28:36,988 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:28:36,988 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 20:28:36,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:28:36 BoogieIcfgContainer [2022-12-05 20:28:36,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:28:36,994 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:28:36,994 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:28:36,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:28:36,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:28:35" (1/3) ... [2022-12-05 20:28:36,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10698911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:28:36, skipping insertion in model container [2022-12-05 20:28:36,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:36" (2/3) ... [2022-12-05 20:28:36,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10698911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:28:36, skipping insertion in model container [2022-12-05 20:28:36,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:28:36" (3/3) ... [2022-12-05 20:28:36,999 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2022-12-05 20:28:37,012 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:28:37,012 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-05 20:28:37,012 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:28:37,136 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-05 20:28:37,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 158 places, 158 transitions, 332 flow [2022-12-05 20:28:37,244 INFO L130 PetriNetUnfolder]: 8/196 cut-off events. [2022-12-05 20:28:37,244 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 20:28:37,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 196 events. 8/196 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 340 event pairs, 0 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 103. Up to 4 conditions per place. [2022-12-05 20:28:37,249 INFO L82 GeneralOperation]: Start removeDead. Operand has 158 places, 158 transitions, 332 flow [2022-12-05 20:28:37,256 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 148 places, 146 transitions, 304 flow [2022-12-05 20:28:37,257 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:28:37,271 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 148 places, 146 transitions, 304 flow [2022-12-05 20:28:37,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 148 places, 146 transitions, 304 flow [2022-12-05 20:28:37,302 INFO L130 PetriNetUnfolder]: 5/177 cut-off events. [2022-12-05 20:28:37,303 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 20:28:37,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 177 events. 5/177 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 288 event pairs, 0 based on Foata normal form. 0/164 useless extension candidates. Maximal degree in co-relation 93. Up to 4 conditions per place. [2022-12-05 20:28:37,309 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 148 places, 146 transitions, 304 flow [2022-12-05 20:28:37,309 INFO L188 LiptonReduction]: Number of co-enabled transitions 2704 [2022-12-05 20:28:41,780 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:41,782 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:41,784 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:41,784 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:42,107 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:42,108 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:42,110 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:42,111 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:42,339 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:42,340 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:42,342 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:42,342 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:49,328 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:49,328 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:49,330 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:49,330 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:53,916 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:53,916 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:53,918 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:53,918 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:05,978 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:05,979 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2022-12-05 20:29:05,982 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:05,983 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:05,985 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:05,985 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2022-12-05 20:29:05,987 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:05,988 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:06,648 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:06,649 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:06,651 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:06,653 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:08,903 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:08,905 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:08,906 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:08,907 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:09,031 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:09,031 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:09,033 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:09,033 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:10,416 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:10,417 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:10,418 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:10,422 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:10,526 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:10,526 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:10,534 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:10,535 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:10,540 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:10,545 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2022-12-05 20:29:10,551 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:10,552 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:10,555 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:10,556 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2022-12-05 20:29:10,558 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:10,559 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:10,563 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:10,564 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2022-12-05 20:29:10,567 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:10,567 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:10,571 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:10,572 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2022-12-05 20:29:10,575 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:10,575 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:12,022 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:12,023 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2022-12-05 20:29:12,026 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:12,026 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:12,030 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:12,031 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2022-12-05 20:29:12,034 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:12,034 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:12,040 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:12,041 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:12,043 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:12,044 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:12,047 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:12,048 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2022-12-05 20:29:12,052 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:12,052 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:12,054 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:12,055 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2022-12-05 20:29:12,058 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:12,059 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:35,373 INFO L203 LiptonReduction]: Total number of compositions: 113 [2022-12-05 20:29:35,387 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:29:35,391 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;@232275d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:29:35,391 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-05 20:29:35,409 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2022-12-05 20:29:35,410 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:29:35,410 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:29:35,410 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-05 20:29:35,411 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-05 20:29:35,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:29:35,414 INFO L85 PathProgramCache]: Analyzing trace with hash 567356, now seen corresponding path program 1 times [2022-12-05 20:29:35,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:29:35,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428312117] [2022-12-05 20:29:35,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:29:35,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:29:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:29:35,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:29:35,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:29:35,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428312117] [2022-12-05 20:29:35,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428312117] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:29:35,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:29:35,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-05 20:29:35,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572791697] [2022-12-05 20:29:35,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:29:35,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-05 20:29:35,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:29:35,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-05 20:29:35,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-05 20:29:35,761 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2022-12-05 20:29:35,762 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 88 flow. Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2022-12-05 20:29:35,762 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:29:35,762 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2022-12-05 20:29:35,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:29:36,013 INFO L130 PetriNetUnfolder]: 529/978 cut-off events. [2022-12-05 20:29:36,013 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-12-05 20:29:36,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1894 conditions, 978 events. 529/978 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 5609 event pairs, 528 based on Foata normal form. 31/744 useless extension candidates. Maximal degree in co-relation 1814. Up to 893 conditions per place. [2022-12-05 20:29:36,020 INFO L137 encePairwiseOnDemand]: 37/38 looper letters, 31 selfloop transitions, 0 changer transitions 0/37 dead transitions. [2022-12-05 20:29:36,020 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 37 transitions, 148 flow [2022-12-05 20:29:36,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-05 20:29:36,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-05 20:29:36,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 44 transitions. [2022-12-05 20:29:36,029 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5789473684210527 [2022-12-05 20:29:36,030 INFO L175 Difference]: Start difference. First operand has 42 places, 38 transitions, 88 flow. Second operand 2 states and 44 transitions. [2022-12-05 20:29:36,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 37 transitions, 148 flow [2022-12-05 20:29:36,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 37 transitions, 140 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-05 20:29:36,034 INFO L231 Difference]: Finished difference. Result has 39 places, 37 transitions, 78 flow [2022-12-05 20:29:36,035 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=78, PETRI_PLACES=39, PETRI_TRANSITIONS=37} [2022-12-05 20:29:36,038 INFO L294 CegarLoopForPetriNet]: 42 programPoint places, -3 predicate places. [2022-12-05 20:29:36,038 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 37 transitions, 78 flow [2022-12-05 20:29:36,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2022-12-05 20:29:36,038 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:29:36,039 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-05 20:29:36,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:29:36,039 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-05 20:29:36,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:29:36,039 INFO L85 PathProgramCache]: Analyzing trace with hash 17582795, now seen corresponding path program 1 times [2022-12-05 20:29:36,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:29:36,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042338193] [2022-12-05 20:29:36,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:29:36,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:29:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:29:36,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:29:36,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:29:36,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042338193] [2022-12-05 20:29:36,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042338193] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:29:36,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:29:36,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:29:36,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031968935] [2022-12-05 20:29:36,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:29:36,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:29:36,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:29:36,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:29:36,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:29:36,315 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 38 [2022-12-05 20:29:36,315 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 37 transitions, 78 flow. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-12-05 20:29:36,315 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:29:36,315 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 38 [2022-12-05 20:29:36,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:29:36,549 INFO L130 PetriNetUnfolder]: 1281/2115 cut-off events. [2022-12-05 20:29:36,549 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:29:36,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4241 conditions, 2115 events. 1281/2115 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 10831 event pairs, 834 based on Foata normal form. 0/1711 useless extension candidates. Maximal degree in co-relation 4238. Up to 1691 conditions per place. [2022-12-05 20:29:36,559 INFO L137 encePairwiseOnDemand]: 31/38 looper letters, 46 selfloop transitions, 6 changer transitions 0/52 dead transitions. [2022-12-05 20:29:36,560 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 52 transitions, 212 flow [2022-12-05 20:29:36,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:29:36,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:29:36,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 53 transitions. [2022-12-05 20:29:36,562 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4649122807017544 [2022-12-05 20:29:36,562 INFO L175 Difference]: Start difference. First operand has 39 places, 37 transitions, 78 flow. Second operand 3 states and 53 transitions. [2022-12-05 20:29:36,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 52 transitions, 212 flow [2022-12-05 20:29:36,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 52 transitions, 212 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 20:29:36,564 INFO L231 Difference]: Finished difference. Result has 42 places, 41 transitions, 114 flow [2022-12-05 20:29:36,566 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=42, PETRI_TRANSITIONS=41} [2022-12-05 20:29:36,567 INFO L294 CegarLoopForPetriNet]: 42 programPoint places, 0 predicate places. [2022-12-05 20:29:36,568 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 41 transitions, 114 flow [2022-12-05 20:29:36,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-12-05 20:29:36,569 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:29:36,569 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-05 20:29:36,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 20:29:36,569 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-05 20:29:36,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:29:36,571 INFO L85 PathProgramCache]: Analyzing trace with hash 545065973, now seen corresponding path program 1 times [2022-12-05 20:29:36,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:29:36,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915475310] [2022-12-05 20:29:36,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:29:36,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:29:36,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:29:36,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:29:36,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:29:36,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915475310] [2022-12-05 20:29:36,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915475310] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:29:36,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:29:36,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:29:36,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157713377] [2022-12-05 20:29:36,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:29:36,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:29:36,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:29:36,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:29:36,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:29:36,757 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 38 [2022-12-05 20:29:36,758 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 41 transitions, 114 flow. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-12-05 20:29:36,758 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:29:36,758 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 38 [2022-12-05 20:29:36,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:29:37,011 INFO L130 PetriNetUnfolder]: 1355/2259 cut-off events. [2022-12-05 20:29:37,011 INFO L131 PetriNetUnfolder]: For 416/416 co-relation queries the response was YES. [2022-12-05 20:29:37,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5240 conditions, 2259 events. 1355/2259 cut-off events. For 416/416 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 12003 event pairs, 910 based on Foata normal form. 90/2025 useless extension candidates. Maximal degree in co-relation 5235. Up to 1796 conditions per place. [2022-12-05 20:29:37,020 INFO L137 encePairwiseOnDemand]: 32/38 looper letters, 47 selfloop transitions, 9 changer transitions 3/59 dead transitions. [2022-12-05 20:29:37,020 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 59 transitions, 290 flow [2022-12-05 20:29:37,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:29:37,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:29:37,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 52 transitions. [2022-12-05 20:29:37,027 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.45614035087719296 [2022-12-05 20:29:37,027 INFO L175 Difference]: Start difference. First operand has 42 places, 41 transitions, 114 flow. Second operand 3 states and 52 transitions. [2022-12-05 20:29:37,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 59 transitions, 290 flow [2022-12-05 20:29:37,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 59 transitions, 280 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 20:29:37,042 INFO L231 Difference]: Finished difference. Result has 44 places, 46 transitions, 177 flow [2022-12-05 20:29:37,042 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=177, PETRI_PLACES=44, PETRI_TRANSITIONS=46} [2022-12-05 20:29:37,043 INFO L294 CegarLoopForPetriNet]: 42 programPoint places, 2 predicate places. [2022-12-05 20:29:37,043 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 46 transitions, 177 flow [2022-12-05 20:29:37,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-12-05 20:29:37,043 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:29:37,043 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:29:37,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 20:29:37,043 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-05 20:29:37,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:29:37,044 INFO L85 PathProgramCache]: Analyzing trace with hash 230682413, now seen corresponding path program 1 times [2022-12-05 20:29:37,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:29:37,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535767870] [2022-12-05 20:29:37,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:29:37,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:29:37,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:29:37,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:29:37,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:29:37,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535767870] [2022-12-05 20:29:37,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535767870] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:29:37,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:29:37,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:29:37,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771565925] [2022-12-05 20:29:37,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:29:37,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:29:37,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:29:37,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:29:37,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:29:37,221 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 38 [2022-12-05 20:29:37,221 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 46 transitions, 177 flow. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-12-05 20:29:37,221 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:29:37,221 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 38 [2022-12-05 20:29:37,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:29:37,503 INFO L130 PetriNetUnfolder]: 1745/2881 cut-off events. [2022-12-05 20:29:37,503 INFO L131 PetriNetUnfolder]: For 1468/1468 co-relation queries the response was YES. [2022-12-05 20:29:37,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7440 conditions, 2881 events. 1745/2881 cut-off events. For 1468/1468 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 15692 event pairs, 848 based on Foata normal form. 0/2485 useless extension candidates. Maximal degree in co-relation 7434. Up to 2201 conditions per place. [2022-12-05 20:29:37,517 INFO L137 encePairwiseOnDemand]: 29/38 looper letters, 58 selfloop transitions, 8 changer transitions 0/66 dead transitions. [2022-12-05 20:29:37,517 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 66 transitions, 368 flow [2022-12-05 20:29:37,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:29:37,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:29:37,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2022-12-05 20:29:37,518 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4824561403508772 [2022-12-05 20:29:37,518 INFO L175 Difference]: Start difference. First operand has 44 places, 46 transitions, 177 flow. Second operand 3 states and 55 transitions. [2022-12-05 20:29:37,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 66 transitions, 368 flow [2022-12-05 20:29:37,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 66 transitions, 359 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 20:29:37,525 INFO L231 Difference]: Finished difference. Result has 46 places, 53 transitions, 248 flow [2022-12-05 20:29:37,525 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=46, PETRI_TRANSITIONS=53} [2022-12-05 20:29:37,526 INFO L294 CegarLoopForPetriNet]: 42 programPoint places, 4 predicate places. [2022-12-05 20:29:37,526 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 53 transitions, 248 flow [2022-12-05 20:29:37,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-12-05 20:29:37,526 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:29:37,526 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:29:37,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 20:29:37,527 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-05 20:29:37,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:29:37,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1438779456, now seen corresponding path program 1 times [2022-12-05 20:29:37,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:29:37,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486172962] [2022-12-05 20:29:37,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:29:37,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:29:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:29:37,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:29:37,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:29:37,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486172962] [2022-12-05 20:29:37,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486172962] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:29:37,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:29:37,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:29:37,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87503284] [2022-12-05 20:29:37,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:29:37,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:29:37,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:29:37,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:29:37,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:29:37,644 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 38 [2022-12-05 20:29:37,644 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 53 transitions, 248 flow. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-12-05 20:29:37,644 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:29:37,644 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 38 [2022-12-05 20:29:37,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:29:37,958 INFO L130 PetriNetUnfolder]: 2070/3404 cut-off events. [2022-12-05 20:29:37,958 INFO L131 PetriNetUnfolder]: For 3880/3880 co-relation queries the response was YES. [2022-12-05 20:29:37,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9974 conditions, 3404 events. 2070/3404 cut-off events. For 3880/3880 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 19106 event pairs, 1012 based on Foata normal form. 0/3022 useless extension candidates. Maximal degree in co-relation 9967. Up to 2547 conditions per place. [2022-12-05 20:29:37,975 INFO L137 encePairwiseOnDemand]: 29/38 looper letters, 62 selfloop transitions, 14 changer transitions 0/76 dead transitions. [2022-12-05 20:29:37,975 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 76 transitions, 515 flow [2022-12-05 20:29:37,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:29:37,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:29:37,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2022-12-05 20:29:37,979 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.47368421052631576 [2022-12-05 20:29:37,979 INFO L175 Difference]: Start difference. First operand has 46 places, 53 transitions, 248 flow. Second operand 3 states and 54 transitions. [2022-12-05 20:29:37,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 76 transitions, 515 flow [2022-12-05 20:29:37,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 76 transitions, 457 flow, removed 16 selfloop flow, removed 2 redundant places. [2022-12-05 20:29:37,985 INFO L231 Difference]: Finished difference. Result has 48 places, 64 transitions, 356 flow [2022-12-05 20:29:37,985 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=356, PETRI_PLACES=48, PETRI_TRANSITIONS=64} [2022-12-05 20:29:37,986 INFO L294 CegarLoopForPetriNet]: 42 programPoint places, 6 predicate places. [2022-12-05 20:29:37,987 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 64 transitions, 356 flow [2022-12-05 20:29:37,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-12-05 20:29:37,987 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:29:37,987 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:29:37,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 20:29:37,987 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-05 20:29:37,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:29:37,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1993503145, now seen corresponding path program 1 times [2022-12-05 20:29:37,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:29:37,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809033781] [2022-12-05 20:29:37,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:29:37,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:29:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 20:29:38,023 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-05 20:29:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 20:29:38,050 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-05 20:29:38,050 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-05 20:29:38,051 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-12-05 20:29:38,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-12-05 20:29:38,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2022-12-05 20:29:38,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-12-05 20:29:38,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-12-05 20:29:38,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-12-05 20:29:38,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-12-05 20:29:38,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2022-12-05 20:29:38,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 20:29:38,053 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-05 20:29:38,056 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 20:29:38,057 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 20:29:38,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:29:38 BasicIcfg [2022-12-05 20:29:38,075 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 20:29:38,075 INFO L158 Benchmark]: Toolchain (without parser) took 62687.19ms. Allocated memory was 185.6MB in the beginning and 246.4MB in the end (delta: 60.8MB). Free memory was 158.0MB in the beginning and 201.8MB in the end (delta: -43.8MB). Peak memory consumption was 18.1MB. Max. memory is 8.0GB. [2022-12-05 20:29:38,075 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 185.6MB. Free memory is still 163.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:29:38,076 INFO L158 Benchmark]: CACSL2BoogieTranslator took 835.04ms. Allocated memory is still 185.6MB. Free memory was 157.5MB in the beginning and 101.4MB in the end (delta: 56.1MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. [2022-12-05 20:29:38,076 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.09ms. Allocated memory is still 185.6MB. Free memory was 101.4MB in the beginning and 98.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-05 20:29:38,076 INFO L158 Benchmark]: Boogie Preprocessor took 54.35ms. Allocated memory is still 185.6MB. Free memory was 98.2MB in the beginning and 95.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-05 20:29:38,076 INFO L158 Benchmark]: RCFGBuilder took 643.84ms. Allocated memory is still 185.6MB. Free memory was 95.1MB in the beginning and 68.3MB in the end (delta: 26.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2022-12-05 20:29:38,076 INFO L158 Benchmark]: TraceAbstraction took 61081.18ms. Allocated memory was 185.6MB in the beginning and 246.4MB in the end (delta: 60.8MB). Free memory was 67.8MB in the beginning and 201.8MB in the end (delta: -134.0MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:29:38,077 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 185.6MB. Free memory is still 163.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 835.04ms. Allocated memory is still 185.6MB. Free memory was 157.5MB in the beginning and 101.4MB in the end (delta: 56.1MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 66.09ms. Allocated memory is still 185.6MB. Free memory was 101.4MB in the beginning and 98.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 54.35ms. Allocated memory is still 185.6MB. Free memory was 98.2MB in the beginning and 95.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 643.84ms. Allocated memory is still 185.6MB. Free memory was 95.1MB in the beginning and 68.3MB in the end (delta: 26.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * TraceAbstraction took 61081.18ms. Allocated memory was 185.6MB in the beginning and 246.4MB in the end (delta: 60.8MB). Free memory was 67.8MB in the beginning and 201.8MB in the end (delta: -134.0MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 58.1s, 148 PlacesBefore, 42 PlacesAfterwards, 146 TransitionsBefore, 38 TransitionsAfterwards, 2704 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 60 TrivialYvCompositions, 49 ConcurrentYvCompositions, 2 ChoiceCompositions, 113 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1972, independent: 1850, independent conditional: 1850, independent unconditional: 0, dependent: 69, dependent conditional: 69, dependent unconditional: 0, unknown: 53, unknown conditional: 53, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1972, independent: 1850, independent conditional: 0, independent unconditional: 1850, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 53, unknown conditional: 0, unknown unconditional: 53] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1972, independent: 1850, independent conditional: 0, independent unconditional: 1850, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 53, unknown conditional: 0, unknown unconditional: 53] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1972, independent: 1850, independent conditional: 0, independent unconditional: 1850, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 53, unknown conditional: 0, unknown unconditional: 53] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1560, independent: 1505, independent conditional: 0, independent unconditional: 1505, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 22, unknown conditional: 0, unknown unconditional: 22] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1560, independent: 1497, independent conditional: 0, independent unconditional: 1497, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 63, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 22, unknown conditional: 0, unknown unconditional: 22] , SemanticIndependenceRelation.Query Time [ms]: [ total: 48137, independent: 142, independent conditional: 0, independent unconditional: 142, dependent: 613, dependent conditional: 0, dependent unconditional: 613, unknown: 47382, unknown conditional: 0, unknown unconditional: 47382] ], Cache Queries: [ total: 1972, independent: 345, independent conditional: 0, independent unconditional: 345, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 1591, unknown conditional: 0, unknown unconditional: 1591] , Statistics on independence cache: Total cache size (in pairs): 2934, Positive cache size: 2901, Positive conditional cache size: 0, Positive unconditional cache size: 2901, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Unknown cache size: 22, Unknown conditional cache size: 0, Unknown unconditional cache size: 22, 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 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)=-2, 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)=-1, pthread_mutex_lock (&data->lock)=0, res=0, t1={3:0}, t2={4:0}] [L1716] 0 data->shared.a = 3 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_mutex_lock (&data->lock)=0, res=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}] [L1719] 0 data->shared.b = 3 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}, res=0, t1={3:0}, t2={4:0}] [L1722] EXPR 0 data->shared.a [L1722] 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: 60.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 58.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 352 IncrementalHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 20 mSDtfsCounter, 352 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=356occurred in iteration=5, InterpolantAutomatonStates: 14, 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, 0.7s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 142 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! [2022-12-05 20:29:38,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...