/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_4-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 20:28:35,631 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:28:35,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:28:35,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 20:28:35,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 20:28:35,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 20:28:35,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 20:28:35,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 20:28:35,669 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 20:28:35,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 20:28:35,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 20:28:35,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 20:28:35,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:28:35,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:28:35,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:28:35,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:28:35,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:28:35,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:28:35,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:28:35,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:28:35,686 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:28:35,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:28:35,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:28:35,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:28:35,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 20:28:35,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 20:28:35,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 20:28:35,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 20:28:35,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 20:28:35,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 20:28:35,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 20:28:35,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 20:28:35,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 20:28:35,693 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 20:28:35,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 20:28:35,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 20:28:35,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 20:28:35,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 20:28:35,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:28:35,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:28:35,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:28:35,703 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 20:28:35,740 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:28:35,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:28:35,741 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:28:35,741 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:28:35,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:28:35,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:28:35,743 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:28:35,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:28:35,743 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:28:35,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:28:35,743 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:28:35,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:28:35,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:28:35,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:28:35,744 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:28:35,744 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:28:35,744 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:28:35,744 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:28:35,744 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:28:35,744 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:28:35,744 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:28:35,745 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:28:35,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:28:35,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:28:35,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:28:35,745 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:28:35,745 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:28:35,745 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:28:35,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:28:35,745 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:28:35,746 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:28:36,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:28:36,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:28:36,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:28:36,049 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:28:36,050 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:28:36,051 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_4-container_of.i [2022-12-05 20:28:37,086 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:28:37,369 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:28:37,370 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_4-container_of.i [2022-12-05 20:28:37,390 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c814c05b/6f247d4396104311bb8b3758b57cb56d/FLAG3dbb0fd5d [2022-12-05 20:28:37,403 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c814c05b/6f247d4396104311bb8b3758b57cb56d [2022-12-05 20:28:37,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:28:37,406 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:28:37,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:28:37,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:28:37,410 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:28:37,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:28:37" (1/1) ... [2022-12-05 20:28:37,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@332f8768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:37, skipping insertion in model container [2022-12-05 20:28:37,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:28:37" (1/1) ... [2022-12-05 20:28:37,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:28:37,473 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:28:37,592 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-05 20:28:37,911 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] [2022-12-05 20:28:37,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:37,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:37,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:37,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:37,924 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:37,924 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:37,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:37,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:37,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:37,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:37,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:37,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:37,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:37,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:37,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:28:37,976 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:28:37,984 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-05 20:28:38,020 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] [2022-12-05 20:28:38,021 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:38,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:38,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:38,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:38,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:38,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:38,027 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:38,027 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:38,027 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:38,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:38,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:38,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:38,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:38,030 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:38,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:28:38,153 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:28:38,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:38 WrapperNode [2022-12-05 20:28:38,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:28:38,155 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:28:38,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:28:38,155 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:28:38,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:38" (1/1) ... [2022-12-05 20:28:38,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:38" (1/1) ... [2022-12-05 20:28:38,215 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-12-05 20:28:38,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:28:38,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:28:38,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:28:38,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:28:38,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:38" (1/1) ... [2022-12-05 20:28:38,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:38" (1/1) ... [2022-12-05 20:28:38,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:38" (1/1) ... [2022-12-05 20:28:38,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:38" (1/1) ... [2022-12-05 20:28:38,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:38" (1/1) ... [2022-12-05 20:28:38,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:38" (1/1) ... [2022-12-05 20:28:38,249 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:38" (1/1) ... [2022-12-05 20:28:38,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:38" (1/1) ... [2022-12-05 20:28:38,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:28:38,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:28:38,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:28:38,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:28:38,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:38" (1/1) ... [2022-12-05 20:28:38,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:28:38,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:28:38,290 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 20:28:38,291 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 20:28:38,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 20:28:38,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:28:38,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 20:28:38,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 20:28:38,316 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 20:28:38,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:28:38,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-05 20:28:38,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:28:38,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:28:38,317 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-12-05 20:28:38,317 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-12-05 20:28:38,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:28:38,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:28:38,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:28:38,318 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 20:28:38,572 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:28:38,574 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:28:38,749 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:28:38,810 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:28:38,811 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 20:28:38,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:28:38 BoogieIcfgContainer [2022-12-05 20:28:38,813 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:28:38,814 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:28:38,814 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:28:38,816 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:28:38,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:28:37" (1/3) ... [2022-12-05 20:28:38,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71adbd79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:28:38, skipping insertion in model container [2022-12-05 20:28:38,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:38" (2/3) ... [2022-12-05 20:28:38,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71adbd79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:28:38, skipping insertion in model container [2022-12-05 20:28:38,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:28:38" (3/3) ... [2022-12-05 20:28:38,818 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2022-12-05 20:28:38,832 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:28:38,833 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-05 20:28:38,833 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:28:38,906 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-05 20:28:38,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 158 places, 158 transitions, 332 flow [2022-12-05 20:28:39,014 INFO L130 PetriNetUnfolder]: 8/202 cut-off events. [2022-12-05 20:28:39,014 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 20:28:39,018 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. [2022-12-05 20:28:39,019 INFO L82 GeneralOperation]: Start removeDead. Operand has 158 places, 158 transitions, 332 flow [2022-12-05 20:28:39,025 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 148 places, 146 transitions, 304 flow [2022-12-05 20:28:39,026 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:28:39,043 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 148 places, 146 transitions, 304 flow [2022-12-05 20:28:39,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 148 places, 146 transitions, 304 flow [2022-12-05 20:28:39,121 INFO L130 PetriNetUnfolder]: 5/183 cut-off events. [2022-12-05 20:28:39,121 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 20:28:39,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 183 events. 5/183 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 344 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 99. Up to 4 conditions per place. [2022-12-05 20:28:39,126 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 148 places, 146 transitions, 304 flow [2022-12-05 20:28:39,127 INFO L188 LiptonReduction]: Number of co-enabled transitions 2704 [2022-12-05 20:28:43,773 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:43,774 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:43,776 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:43,777 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:44,103 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:44,104 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:44,105 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:44,106 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:44,131 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:44,132 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:44,133 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:44,134 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:46,544 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:46,545 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:46,547 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:46,548 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:48,982 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:48,982 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:48,984 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:48,985 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:51,269 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:51,274 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:51,276 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:51,276 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:53,722 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:53,723 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:53,725 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:53,725 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:53,866 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:53,867 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:53,869 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:53,869 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:56,212 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:56,213 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:56,214 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:56,215 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:05,793 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:05,794 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2022-12-05 20:29:05,795 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:05,796 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:05,799 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:05,800 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2022-12-05 20:29:05,801 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:05,804 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:06,598 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:06,599 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:06,600 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:06,601 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:06,718 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:06,719 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:06,721 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:06,721 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:06,976 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:06,977 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:06,979 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:06,980 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:08,261 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:08,266 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:08,267 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:08,268 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:08,492 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:08,492 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2022-12-05 20:29:08,503 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:08,504 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:08,508 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:08,511 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2022-12-05 20:29:08,514 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:08,515 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:08,522 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:08,523 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:08,526 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:08,527 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:08,529 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:08,530 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2022-12-05 20:29:08,532 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:08,533 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:08,535 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:08,536 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2022-12-05 20:29:08,538 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:08,538 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:14,210 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:14,211 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:14,214 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:14,215 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:14,218 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:14,219 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2022-12-05 20:29:14,223 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:14,223 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:14,229 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:14,230 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2022-12-05 20:29:14,232 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:14,233 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:14,238 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:14,239 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2022-12-05 20:29:14,243 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:14,244 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:14,247 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:14,247 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2022-12-05 20:29:14,250 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:14,250 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:38,064 INFO L203 LiptonReduction]: Total number of compositions: 112 [2022-12-05 20:29:38,074 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:29:38,078 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;@76b566fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:29:38,078 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-05 20:29:38,081 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-12-05 20:29:38,081 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:29:38,081 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:29:38,082 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-05 20:29:38,082 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-05 20:29:38,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:29:38,085 INFO L85 PathProgramCache]: Analyzing trace with hash 571168, now seen corresponding path program 1 times [2022-12-05 20:29:38,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:29:38,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31894472] [2022-12-05 20:29:38,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:29:38,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:29:38,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:29:38,379 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 20:29:38,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:29:38,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31894472] [2022-12-05 20:29:38,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31894472] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:29:38,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:29:38,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-05 20:29:38,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853149289] [2022-12-05 20:29:38,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:29:38,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-05 20:29:38,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:29:38,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-05 20:29:38,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-05 20:29:38,402 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 39 [2022-12-05 20:29:38,403 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 39 transitions, 90 flow. Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:29:38,403 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:29:38,403 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 39 [2022-12-05 20:29:38,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:29:38,626 INFO L130 PetriNetUnfolder]: 529/1029 cut-off events. [2022-12-05 20:29:38,626 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-12-05 20:29:38,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1949 conditions, 1029 events. 529/1029 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 6168 event pairs, 528 based on Foata normal form. 31/798 useless extension candidates. Maximal degree in co-relation 1859. Up to 897 conditions per place. [2022-12-05 20:29:38,632 INFO L137 encePairwiseOnDemand]: 38/39 looper letters, 31 selfloop transitions, 0 changer transitions 0/38 dead transitions. [2022-12-05 20:29:38,632 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 38 transitions, 150 flow [2022-12-05 20:29:38,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-05 20:29:38,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-05 20:29:38,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 46 transitions. [2022-12-05 20:29:38,640 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5897435897435898 [2022-12-05 20:29:38,641 INFO L175 Difference]: Start difference. First operand has 43 places, 39 transitions, 90 flow. Second operand 2 states and 46 transitions. [2022-12-05 20:29:38,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 38 transitions, 150 flow [2022-12-05 20:29:38,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 38 transitions, 142 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-05 20:29:38,644 INFO L231 Difference]: Finished difference. Result has 40 places, 38 transitions, 80 flow [2022-12-05 20:29:38,646 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=80, PETRI_PLACES=40, PETRI_TRANSITIONS=38} [2022-12-05 20:29:38,648 INFO L294 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2022-12-05 20:29:38,648 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 38 transitions, 80 flow [2022-12-05 20:29:38,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:29:38,649 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:29:38,649 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-05 20:29:38,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:29:38,649 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-05 20:29:38,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:29:38,649 INFO L85 PathProgramCache]: Analyzing trace with hash 17731531, now seen corresponding path program 1 times [2022-12-05 20:29:38,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:29:38,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819141346] [2022-12-05 20:29:38,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:29:38,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:29:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:29:38,758 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 20:29:38,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:29:38,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819141346] [2022-12-05 20:29:38,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819141346] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:29:38,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:29:38,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:29:38,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24693094] [2022-12-05 20:29:38,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:29:38,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:29:38,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:29:38,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:29:38,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:29:38,761 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 39 [2022-12-05 20:29:38,762 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 38 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:29:38,764 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:29:38,764 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 39 [2022-12-05 20:29:38,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:29:38,924 INFO L130 PetriNetUnfolder]: 528/1011 cut-off events. [2022-12-05 20:29:38,925 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-05 20:29:38,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1915 conditions, 1011 events. 528/1011 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 5720 event pairs, 332 based on Foata normal form. 0/746 useless extension candidates. Maximal degree in co-relation 1912. Up to 574 conditions per place. [2022-12-05 20:29:38,931 INFO L137 encePairwiseOnDemand]: 36/39 looper letters, 42 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2022-12-05 20:29:38,932 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 51 transitions, 194 flow [2022-12-05 20:29:38,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:29:38,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:29:38,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2022-12-05 20:29:38,934 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5641025641025641 [2022-12-05 20:29:38,934 INFO L175 Difference]: Start difference. First operand has 40 places, 38 transitions, 80 flow. Second operand 3 states and 66 transitions. [2022-12-05 20:29:38,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 51 transitions, 194 flow [2022-12-05 20:29:38,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 51 transitions, 194 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 20:29:38,936 INFO L231 Difference]: Finished difference. Result has 44 places, 39 transitions, 94 flow [2022-12-05 20:29:38,936 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=44, PETRI_TRANSITIONS=39} [2022-12-05 20:29:38,937 INFO L294 CegarLoopForPetriNet]: 43 programPoint places, 1 predicate places. [2022-12-05 20:29:38,937 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 39 transitions, 94 flow [2022-12-05 20:29:38,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:29:38,937 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:29:38,937 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-05 20:29:38,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 20:29:38,937 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-05 20:29:38,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:29:38,939 INFO L85 PathProgramCache]: Analyzing trace with hash 17700968, now seen corresponding path program 1 times [2022-12-05 20:29:38,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:29:38,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315720854] [2022-12-05 20:29:38,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:29:38,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:29:38,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:29:39,166 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 20:29:39,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:29:39,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315720854] [2022-12-05 20:29:39,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315720854] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:29:39,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:29:39,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:29:39,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469128926] [2022-12-05 20:29:39,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:29:39,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:29:39,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:29:39,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:29:39,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:29:39,169 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 39 [2022-12-05 20:29:39,169 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 39 transitions, 94 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 20:29:39,169 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:29:39,169 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 39 [2022-12-05 20:29:39,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:29:39,451 INFO L130 PetriNetUnfolder]: 1364/2250 cut-off events. [2022-12-05 20:29:39,452 INFO L131 PetriNetUnfolder]: For 160/160 co-relation queries the response was YES. [2022-12-05 20:29:39,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4663 conditions, 2250 events. 1364/2250 cut-off events. For 160/160 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 11529 event pairs, 918 based on Foata normal form. 0/1883 useless extension candidates. Maximal degree in co-relation 4658. Up to 1823 conditions per place. [2022-12-05 20:29:39,461 INFO L137 encePairwiseOnDemand]: 32/39 looper letters, 47 selfloop transitions, 7 changer transitions 0/54 dead transitions. [2022-12-05 20:29:39,461 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 54 transitions, 232 flow [2022-12-05 20:29:39,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:29:39,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:29:39,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2022-12-05 20:29:39,463 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.46153846153846156 [2022-12-05 20:29:39,463 INFO L175 Difference]: Start difference. First operand has 44 places, 39 transitions, 94 flow. Second operand 3 states and 54 transitions. [2022-12-05 20:29:39,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 54 transitions, 232 flow [2022-12-05 20:29:39,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 54 transitions, 230 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 20:29:39,465 INFO L231 Difference]: Finished difference. Result has 46 places, 43 transitions, 131 flow [2022-12-05 20:29:39,465 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=131, PETRI_PLACES=46, PETRI_TRANSITIONS=43} [2022-12-05 20:29:39,465 INFO L294 CegarLoopForPetriNet]: 43 programPoint places, 3 predicate places. [2022-12-05 20:29:39,465 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 43 transitions, 131 flow [2022-12-05 20:29:39,465 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 20:29:39,465 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:29:39,466 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-05 20:29:39,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 20:29:39,466 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-05 20:29:39,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:29:39,466 INFO L85 PathProgramCache]: Analyzing trace with hash 548729619, now seen corresponding path program 1 times [2022-12-05 20:29:39,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:29:39,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905742738] [2022-12-05 20:29:39,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:29:39,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:29:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:29:39,589 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 20:29:39,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:29:39,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905742738] [2022-12-05 20:29:39,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905742738] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:29:39,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:29:39,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:29:39,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663826581] [2022-12-05 20:29:39,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:29:39,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:29:39,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:29:39,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:29:39,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:29:39,591 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 39 [2022-12-05 20:29:39,591 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 43 transitions, 131 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 20:29:39,591 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:29:39,591 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 39 [2022-12-05 20:29:39,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:29:39,870 INFO L130 PetriNetUnfolder]: 1438/2393 cut-off events. [2022-12-05 20:29:39,871 INFO L131 PetriNetUnfolder]: For 635/635 co-relation queries the response was YES. [2022-12-05 20:29:39,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5687 conditions, 2393 events. 1438/2393 cut-off events. For 635/635 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 12650 event pairs, 994 based on Foata normal form. 91/2147 useless extension candidates. Maximal degree in co-relation 5681. Up to 1928 conditions per place. [2022-12-05 20:29:39,879 INFO L137 encePairwiseOnDemand]: 33/39 looper letters, 48 selfloop transitions, 9 changer transitions 4/61 dead transitions. [2022-12-05 20:29:39,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 61 transitions, 311 flow [2022-12-05 20:29:39,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:29:39,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:29:39,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 53 transitions. [2022-12-05 20:29:39,881 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.452991452991453 [2022-12-05 20:29:39,882 INFO L175 Difference]: Start difference. First operand has 46 places, 43 transitions, 131 flow. Second operand 3 states and 53 transitions. [2022-12-05 20:29:39,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 61 transitions, 311 flow [2022-12-05 20:29:39,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 61 transitions, 300 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 20:29:39,885 INFO L231 Difference]: Finished difference. Result has 48 places, 47 transitions, 184 flow [2022-12-05 20:29:39,885 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=184, PETRI_PLACES=48, PETRI_TRANSITIONS=47} [2022-12-05 20:29:39,886 INFO L294 CegarLoopForPetriNet]: 43 programPoint places, 5 predicate places. [2022-12-05 20:29:39,887 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 47 transitions, 184 flow [2022-12-05 20:29:39,887 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 20:29:39,887 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:29:39,887 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:29:39,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 20:29:39,887 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-05 20:29:39,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:29:39,888 INFO L85 PathProgramCache]: Analyzing trace with hash -2037857267, now seen corresponding path program 1 times [2022-12-05 20:29:39,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:29:39,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256485071] [2022-12-05 20:29:39,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:29:39,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:29:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:29:40,029 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 20:29:40,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:29:40,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256485071] [2022-12-05 20:29:40,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256485071] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:29:40,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:29:40,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:29:40,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069537235] [2022-12-05 20:29:40,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:29:40,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:29:40,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:29:40,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:29:40,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:29:40,031 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 39 [2022-12-05 20:29:40,031 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 47 transitions, 184 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 20:29:40,031 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:29:40,032 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 39 [2022-12-05 20:29:40,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:29:40,323 INFO L130 PetriNetUnfolder]: 1789/2974 cut-off events. [2022-12-05 20:29:40,323 INFO L131 PetriNetUnfolder]: For 1632/1632 co-relation queries the response was YES. [2022-12-05 20:29:40,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7790 conditions, 2974 events. 1789/2974 cut-off events. For 1632/1632 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 16764 event pairs, 932 based on Foata normal form. 0/2564 useless extension candidates. Maximal degree in co-relation 7783. Up to 2294 conditions per place. [2022-12-05 20:29:40,336 INFO L137 encePairwiseOnDemand]: 31/39 looper letters, 59 selfloop transitions, 7 changer transitions 0/66 dead transitions. [2022-12-05 20:29:40,336 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 66 transitions, 371 flow [2022-12-05 20:29:40,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:29:40,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:29:40,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2022-12-05 20:29:40,340 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4700854700854701 [2022-12-05 20:29:40,340 INFO L175 Difference]: Start difference. First operand has 48 places, 47 transitions, 184 flow. Second operand 3 states and 55 transitions. [2022-12-05 20:29:40,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 66 transitions, 371 flow [2022-12-05 20:29:40,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 66 transitions, 359 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-05 20:29:40,348 INFO L231 Difference]: Finished difference. Result has 49 places, 53 transitions, 242 flow [2022-12-05 20:29:40,348 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=49, PETRI_TRANSITIONS=53} [2022-12-05 20:29:40,350 INFO L294 CegarLoopForPetriNet]: 43 programPoint places, 6 predicate places. [2022-12-05 20:29:40,350 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 53 transitions, 242 flow [2022-12-05 20:29:40,350 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 20:29:40,350 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:29:40,350 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:29:40,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 20:29:40,351 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-05 20:29:40,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:29:40,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1250934528, now seen corresponding path program 1 times [2022-12-05 20:29:40,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:29:40,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984831442] [2022-12-05 20:29:40,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:29:40,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:29:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:29:40,444 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 20:29:40,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:29:40,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984831442] [2022-12-05 20:29:40,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984831442] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:29:40,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:29:40,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:29:40,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426908350] [2022-12-05 20:29:40,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:29:40,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:29:40,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:29:40,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:29:40,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:29:40,446 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 39 [2022-12-05 20:29:40,446 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 53 transitions, 242 flow. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 20:29:40,447 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:29:40,447 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 39 [2022-12-05 20:29:40,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:29:40,769 INFO L130 PetriNetUnfolder]: 2074/3457 cut-off events. [2022-12-05 20:29:40,769 INFO L131 PetriNetUnfolder]: For 3681/3681 co-relation queries the response was YES. [2022-12-05 20:29:40,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10004 conditions, 3457 events. 2074/3457 cut-off events. For 3681/3681 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 20011 event pairs, 1096 based on Foata normal form. 0/3061 useless extension candidates. Maximal degree in co-relation 9997. Up to 2600 conditions per place. [2022-12-05 20:29:40,784 INFO L137 encePairwiseOnDemand]: 31/39 looper letters, 63 selfloop transitions, 12 changer transitions 0/75 dead transitions. [2022-12-05 20:29:40,784 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 75 transitions, 501 flow [2022-12-05 20:29:40,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:29:40,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:29:40,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2022-12-05 20:29:40,786 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.46153846153846156 [2022-12-05 20:29:40,786 INFO L175 Difference]: Start difference. First operand has 49 places, 53 transitions, 242 flow. Second operand 3 states and 54 transitions. [2022-12-05 20:29:40,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 75 transitions, 501 flow [2022-12-05 20:29:40,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 75 transitions, 445 flow, removed 16 selfloop flow, removed 2 redundant places. [2022-12-05 20:29:40,793 INFO L231 Difference]: Finished difference. Result has 51 places, 63 transitions, 336 flow [2022-12-05 20:29:40,793 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=51, PETRI_TRANSITIONS=63} [2022-12-05 20:29:40,794 INFO L294 CegarLoopForPetriNet]: 43 programPoint places, 8 predicate places. [2022-12-05 20:29:40,794 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 63 transitions, 336 flow [2022-12-05 20:29:40,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 20:29:40,795 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:29:40,795 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:29:40,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 20:29:40,795 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-05 20:29:40,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:29:40,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1790197127, now seen corresponding path program 1 times [2022-12-05 20:29:40,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:29:40,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417670737] [2022-12-05 20:29:40,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:29:40,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:29:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:29:40,859 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 20:29:40,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:29:40,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417670737] [2022-12-05 20:29:40,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417670737] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:29:40,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:29:40,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 20:29:40,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164478862] [2022-12-05 20:29:40,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:29:40,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:29:40,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:29:40,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:29:40,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:29:40,863 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 39 [2022-12-05 20:29:40,863 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 63 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 20:29:40,863 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:29:40,863 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 39 [2022-12-05 20:29:40,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:29:41,036 INFO L130 PetriNetUnfolder]: 943/1761 cut-off events. [2022-12-05 20:29:41,036 INFO L131 PetriNetUnfolder]: For 2169/2193 co-relation queries the response was YES. [2022-12-05 20:29:41,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5134 conditions, 1761 events. 943/1761 cut-off events. For 2169/2193 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 10468 event pairs, 241 based on Foata normal form. 69/1583 useless extension candidates. Maximal degree in co-relation 5126. Up to 1272 conditions per place. [2022-12-05 20:29:41,044 INFO L137 encePairwiseOnDemand]: 37/39 looper letters, 39 selfloop transitions, 1 changer transitions 0/55 dead transitions. [2022-12-05 20:29:41,044 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 55 transitions, 350 flow [2022-12-05 20:29:41,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:29:41,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:29:41,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2022-12-05 20:29:41,045 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4700854700854701 [2022-12-05 20:29:41,046 INFO L175 Difference]: Start difference. First operand has 51 places, 63 transitions, 336 flow. Second operand 3 states and 55 transitions. [2022-12-05 20:29:41,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 55 transitions, 350 flow [2022-12-05 20:29:41,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 55 transitions, 290 flow, removed 18 selfloop flow, removed 4 redundant places. [2022-12-05 20:29:41,052 INFO L231 Difference]: Finished difference. Result has 40 places, 46 transitions, 190 flow [2022-12-05 20:29:41,052 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=40, PETRI_TRANSITIONS=46} [2022-12-05 20:29:41,052 INFO L294 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2022-12-05 20:29:41,052 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 46 transitions, 190 flow [2022-12-05 20:29:41,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 20:29:41,052 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:29:41,053 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:29:41,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 20:29:41,053 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-05 20:29:41,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:29:41,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1789186344, now seen corresponding path program 1 times [2022-12-05 20:29:41,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:29:41,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143419864] [2022-12-05 20:29:41,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:29:41,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:29:41,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 20:29:41,097 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-05 20:29:41,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 20:29:41,155 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-05 20:29:41,155 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-05 20:29:41,156 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-12-05 20:29:41,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-12-05 20:29:41,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2022-12-05 20:29:41,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-12-05 20:29:41,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-12-05 20:29:41,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-12-05 20:29:41,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-12-05 20:29:41,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2022-12-05 20:29:41,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-05 20:29:41,160 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:29:41,164 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 20:29:41,164 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 20:29:41,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:29:41 BasicIcfg [2022-12-05 20:29:41,193 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 20:29:41,193 INFO L158 Benchmark]: Toolchain (without parser) took 63787.27ms. Allocated memory was 211.8MB in the beginning and 299.9MB in the end (delta: 88.1MB). Free memory was 184.7MB in the beginning and 214.5MB in the end (delta: -29.8MB). Peak memory consumption was 58.7MB. Max. memory is 8.0GB. [2022-12-05 20:29:41,193 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 211.8MB. Free memory is still 189.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:29:41,194 INFO L158 Benchmark]: CACSL2BoogieTranslator took 745.78ms. Allocated memory was 211.8MB in the beginning and 299.9MB in the end (delta: 88.1MB). Free memory was 184.7MB in the beginning and 268.2MB in the end (delta: -83.5MB). Peak memory consumption was 58.4MB. Max. memory is 8.0GB. [2022-12-05 20:29:41,194 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.43ms. Allocated memory is still 299.9MB. Free memory was 267.6MB in the beginning and 264.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-05 20:29:41,194 INFO L158 Benchmark]: Boogie Preprocessor took 37.60ms. Allocated memory is still 299.9MB. Free memory was 264.5MB in the beginning and 261.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 20:29:41,194 INFO L158 Benchmark]: RCFGBuilder took 557.53ms. Allocated memory is still 299.9MB. Free memory was 261.9MB in the beginning and 234.6MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2022-12-05 20:29:41,194 INFO L158 Benchmark]: TraceAbstraction took 62378.72ms. Allocated memory is still 299.9MB. Free memory was 234.1MB in the beginning and 214.5MB in the end (delta: 19.6MB). Peak memory consumption was 19.1MB. Max. memory is 8.0GB. [2022-12-05 20:29:41,195 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 211.8MB. Free memory is still 189.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 745.78ms. Allocated memory was 211.8MB in the beginning and 299.9MB in the end (delta: 88.1MB). Free memory was 184.7MB in the beginning and 268.2MB in the end (delta: -83.5MB). Peak memory consumption was 58.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 61.43ms. Allocated memory is still 299.9MB. Free memory was 267.6MB in the beginning and 264.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.60ms. Allocated memory is still 299.9MB. Free memory was 264.5MB in the beginning and 261.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 557.53ms. Allocated memory is still 299.9MB. Free memory was 261.9MB in the beginning and 234.6MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * TraceAbstraction took 62378.72ms. Allocated memory is still 299.9MB. Free memory was 234.1MB in the beginning and 214.5MB in the end (delta: 19.6MB). Peak memory consumption was 19.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 58.9s, 148 PlacesBefore, 43 PlacesAfterwards, 146 TransitionsBefore, 39 TransitionsAfterwards, 2704 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 60 TrivialYvCompositions, 48 ConcurrentYvCompositions, 2 ChoiceCompositions, 112 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1928, independent: 1800, independent conditional: 1800, independent unconditional: 0, dependent: 76, dependent conditional: 76, dependent unconditional: 0, unknown: 52, unknown conditional: 52, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1928, independent: 1800, independent conditional: 0, independent unconditional: 1800, dependent: 76, dependent conditional: 0, dependent unconditional: 76, unknown: 52, unknown conditional: 0, unknown unconditional: 52] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1928, independent: 1800, independent conditional: 0, independent unconditional: 1800, dependent: 76, dependent conditional: 0, dependent unconditional: 76, unknown: 52, unknown conditional: 0, unknown unconditional: 52] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1928, independent: 1800, independent conditional: 0, independent unconditional: 1800, dependent: 76, dependent conditional: 0, dependent unconditional: 76, unknown: 52, unknown conditional: 0, unknown unconditional: 52] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1505, independent: 1449, independent conditional: 0, independent unconditional: 1449, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 22, unknown conditional: 0, unknown unconditional: 22] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1505, independent: 1444, independent conditional: 0, independent unconditional: 1444, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 61, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 22, unknown conditional: 0, unknown unconditional: 22] , SemanticIndependenceRelation.Query Time [ms]: [ total: 48227, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 813, dependent conditional: 0, dependent unconditional: 813, unknown: 47399, unknown conditional: 0, unknown unconditional: 47399] ], Cache Queries: [ total: 1928, independent: 351, independent conditional: 0, independent unconditional: 351, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 1535, unknown conditional: 0, unknown unconditional: 1535] , Statistics on independence cache: Total cache size (in pairs): 2676, Positive cache size: 2642, Positive conditional cache size: 0, Positive unconditional cache size: 2642, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, 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, EXPR 0 my_drv_probe(&data) [L1706] 0 struct device *d = &data->dev; [L1708] 0 data->shared.a = 0 [L1709] 0 data->shared.b = 0 [L1710] 0 int res = __VERIFIER_nondet_int(); [L1711] COND FALSE 0 !(\read(res)) [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, pthread_create(&t1, ((void *)0), my_callback, (void *)d)=8, 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)=9, pthread_mutex_lock (&data->lock)=0, res=0, t1={3:0}, t2={4:0}] [L1715] 0 return 0; VAL [\result=0, __mptr={5:24}, arg={5:24}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, pthread_mutex_lock (&data->lock)=0, res=0, t1={3:0}, t2={4:0}] [L1749] RET, EXPR 0 my_drv_probe(&data) [L1749] 0 probe_ret = my_drv_probe(&data) [L1750] COND TRUE 0 probe_ret==0 [L1751] CALL 0 my_drv_disconnect(&data) [L1721] 0 void *status; [L1723] 0 data->shared.a = 3 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, pthread_mutex_lock (&data->lock)=0, status={7:0}, 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}] [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: 62.2s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 59.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 76 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 470 IncrementalHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 24 mSDtfsCounter, 470 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=336occurred in iteration=6, InterpolantAutomatonStates: 20, 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, 0.8s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 161 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 20:29:41,246 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...