/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-min-le-max.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 01:09:55,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 01:09:55,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 01:09:55,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 01:09:55,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 01:09:55,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 01:09:55,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 01:09:55,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 01:09:55,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 01:09:55,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 01:09:55,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 01:09:55,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 01:09:55,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 01:09:55,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 01:09:55,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 01:09:55,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 01:09:55,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 01:09:55,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 01:09:55,256 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 01:09:55,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 01:09:55,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 01:09:55,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 01:09:55,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 01:09:55,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 01:09:55,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 01:09:55,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 01:09:55,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 01:09:55,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 01:09:55,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 01:09:55,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 01:09:55,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 01:09:55,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 01:09:55,270 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 01:09:55,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 01:09:55,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 01:09:55,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 01:09:55,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 01:09:55,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 01:09:55,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 01:09:55,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 01:09:55,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 01:09:55,277 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-12 01:09:55,324 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 01:09:55,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 01:09:55,325 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 01:09:55,325 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 01:09:55,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 01:09:55,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 01:09:55,326 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 01:09:55,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 01:09:55,326 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 01:09:55,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 01:09:55,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 01:09:55,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 01:09:55,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 01:09:55,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 01:09:55,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 01:09:55,328 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 01:09:55,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 01:09:55,328 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 01:09:55,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 01:09:55,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 01:09:55,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 01:09:55,328 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 01:09:55,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 01:09:55,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 01:09:55,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 01:09:55,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 01:09:55,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 01:09:55,329 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-12 01:09:55,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 01:09:55,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 01:09:55,329 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 01:09:55,329 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 01:09:55,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 01:09:55,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 01:09:55,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 01:09:55,649 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 01:09:55,649 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 01:09:55,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-min-le-max.wvr.c [2022-12-12 01:09:56,656 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 01:09:56,853 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 01:09:56,853 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-min-le-max.wvr.c [2022-12-12 01:09:56,857 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42601ca39/2031f6709558478980344f5b8a576a0a/FLAG08dae8ede [2022-12-12 01:09:56,868 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42601ca39/2031f6709558478980344f5b8a576a0a [2022-12-12 01:09:56,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 01:09:56,871 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 01:09:56,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 01:09:56,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 01:09:56,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 01:09:56,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 01:09:56" (1/1) ... [2022-12-12 01:09:56,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c7f4f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:09:56, skipping insertion in model container [2022-12-12 01:09:56,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 01:09:56" (1/1) ... [2022-12-12 01:09:56,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 01:09:56,889 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 01:09:56,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:09:57,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:09:57,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:09:57,007 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:09:57,008 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:09:57,008 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:09:57,025 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-min-le-max.wvr.c[2486,2499] [2022-12-12 01:09:57,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 01:09:57,044 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 01:09:57,059 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:09:57,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:09:57,063 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:09:57,064 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:09:57,065 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 01:09:57,065 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 01:09:57,077 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-min-le-max.wvr.c[2486,2499] [2022-12-12 01:09:57,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 01:09:57,092 INFO L208 MainTranslator]: Completed translation [2022-12-12 01:09:57,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:09:57 WrapperNode [2022-12-12 01:09:57,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 01:09:57,095 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 01:09:57,095 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 01:09:57,095 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 01:09:57,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:09:57" (1/1) ... [2022-12-12 01:09:57,115 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:09:57" (1/1) ... [2022-12-12 01:09:57,138 INFO L138 Inliner]: procedures = 24, calls = 43, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 104 [2022-12-12 01:09:57,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 01:09:57,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 01:09:57,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 01:09:57,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 01:09:57,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:09:57" (1/1) ... [2022-12-12 01:09:57,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:09:57" (1/1) ... [2022-12-12 01:09:57,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:09:57" (1/1) ... [2022-12-12 01:09:57,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:09:57" (1/1) ... [2022-12-12 01:09:57,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:09:57" (1/1) ... [2022-12-12 01:09:57,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:09:57" (1/1) ... [2022-12-12 01:09:57,173 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:09:57" (1/1) ... [2022-12-12 01:09:57,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:09:57" (1/1) ... [2022-12-12 01:09:57,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 01:09:57,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 01:09:57,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 01:09:57,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 01:09:57,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:09:57" (1/1) ... [2022-12-12 01:09:57,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 01:09:57,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 01:09:57,222 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 01:09:57,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 01:09:57,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 01:09:57,252 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 01:09:57,252 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 01:09:57,252 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 01:09:57,252 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 01:09:57,252 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-12 01:09:57,252 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-12 01:09:57,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 01:09:57,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 01:09:57,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 01:09:57,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 01:09:57,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 01:09:57,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-12 01:09:57,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 01:09:57,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 01:09:57,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 01:09:57,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 01:09:57,254 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 01:09:57,382 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 01:09:57,384 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 01:09:57,575 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 01:09:57,609 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 01:09:57,609 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-12 01:09:57,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 01:09:57 BoogieIcfgContainer [2022-12-12 01:09:57,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 01:09:57,612 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 01:09:57,612 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 01:09:57,615 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 01:09:57,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 01:09:56" (1/3) ... [2022-12-12 01:09:57,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@538af622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 01:09:57, skipping insertion in model container [2022-12-12 01:09:57,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:09:57" (2/3) ... [2022-12-12 01:09:57,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@538af622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 01:09:57, skipping insertion in model container [2022-12-12 01:09:57,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 01:09:57" (3/3) ... [2022-12-12 01:09:57,617 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-min-le-max.wvr.c [2022-12-12 01:09:57,629 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 01:09:57,629 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 01:09:57,629 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 01:09:57,679 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-12 01:09:57,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 138 transitions, 300 flow [2022-12-12 01:09:57,755 INFO L130 PetriNetUnfolder]: 10/135 cut-off events. [2022-12-12 01:09:57,755 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 01:09:57,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 135 events. 10/135 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 75 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 106. Up to 2 conditions per place. [2022-12-12 01:09:57,761 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 138 transitions, 300 flow [2022-12-12 01:09:57,768 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 125 places, 125 transitions, 268 flow [2022-12-12 01:09:57,778 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 01:09:57,787 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;@721b237a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 01:09:57,787 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 01:09:57,811 INFO L130 PetriNetUnfolder]: 10/124 cut-off events. [2022-12-12 01:09:57,812 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 01:09:57,812 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 01:09:57,812 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 01:09:57,813 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 01:09:57,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 01:09:57,816 INFO L85 PathProgramCache]: Analyzing trace with hash 762639837, now seen corresponding path program 1 times [2022-12-12 01:09:57,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 01:09:57,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274017830] [2022-12-12 01:09:57,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 01:09:57,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 01:09:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 01:09:58,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 01:09:58,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 01:09:58,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274017830] [2022-12-12 01:09:58,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274017830] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 01:09:58,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 01:09:58,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-12 01:09:58,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444207058] [2022-12-12 01:09:58,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 01:09:58,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-12 01:09:58,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 01:09:58,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-12 01:09:58,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-12 01:09:58,635 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 138 [2022-12-12 01:09:58,640 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 125 transitions, 268 flow. Second operand has 9 states, 9 states have (on average 84.77777777777777) internal successors, (763), 9 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 01:09:58,641 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 01:09:58,641 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 138 [2022-12-12 01:09:58,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 01:09:58,899 INFO L130 PetriNetUnfolder]: 74/278 cut-off events. [2022-12-12 01:09:58,899 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2022-12-12 01:09:58,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 456 conditions, 278 events. 74/278 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 788 event pairs, 17 based on Foata normal form. 59/321 useless extension candidates. Maximal degree in co-relation 247. Up to 64 conditions per place. [2022-12-12 01:09:58,903 INFO L137 encePairwiseOnDemand]: 117/138 looper letters, 0 selfloop transitions, 0 changer transitions 122/122 dead transitions. [2022-12-12 01:09:58,904 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 122 transitions, 380 flow [2022-12-12 01:09:58,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 01:09:58,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 01:09:58,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1106 transitions. [2022-12-12 01:09:58,920 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6164994425863991 [2022-12-12 01:09:58,923 INFO L295 CegarLoopForPetriNet]: 125 programPoint places, 9 predicate places. [2022-12-12 01:09:58,923 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 122 transitions, 380 flow [2022-12-12 01:09:58,924 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-12 01:09:58,924 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-12 01:09:58,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 84.77777777777777) internal successors, (763), 9 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 01:09:58,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 01:09:58,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 01:09:58,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 01:09:58,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 01:09:58,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 01:09:58,928 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-12 01:09:58,935 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 01:09:58,937 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 01:09:58,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 01:09:58 BasicIcfg [2022-12-12 01:09:58,941 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 01:09:58,941 INFO L158 Benchmark]: Toolchain (without parser) took 2070.29ms. Allocated memory was 189.8MB in the beginning and 243.3MB in the end (delta: 53.5MB). Free memory was 166.4MB in the beginning and 121.5MB in the end (delta: 45.0MB). Peak memory consumption was 99.7MB. Max. memory is 8.0GB. [2022-12-12 01:09:58,941 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 189.8MB. Free memory is still 166.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 01:09:58,942 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.67ms. Allocated memory is still 189.8MB. Free memory was 166.4MB in the beginning and 154.1MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-12 01:09:58,942 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.32ms. Allocated memory is still 189.8MB. Free memory was 154.1MB in the beginning and 152.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 01:09:58,943 INFO L158 Benchmark]: Boogie Preprocessor took 35.08ms. Allocated memory is still 189.8MB. Free memory was 152.5MB in the beginning and 151.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 01:09:58,944 INFO L158 Benchmark]: RCFGBuilder took 435.11ms. Allocated memory is still 189.8MB. Free memory was 151.0MB in the beginning and 132.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-12 01:09:58,944 INFO L158 Benchmark]: TraceAbstraction took 1328.24ms. Allocated memory was 189.8MB in the beginning and 243.3MB in the end (delta: 53.5MB). Free memory was 131.0MB in the beginning and 121.5MB in the end (delta: 9.6MB). Peak memory consumption was 64.1MB. Max. memory is 8.0GB. [2022-12-12 01:09:58,946 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 189.8MB. Free memory is still 166.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 221.67ms. Allocated memory is still 189.8MB. Free memory was 166.4MB in the beginning and 154.1MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.32ms. Allocated memory is still 189.8MB. Free memory was 154.1MB in the beginning and 152.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.08ms. Allocated memory is still 189.8MB. Free memory was 152.5MB in the beginning and 151.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 435.11ms. Allocated memory is still 189.8MB. Free memory was 151.0MB in the beginning and 132.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 1328.24ms. Allocated memory was 189.8MB in the beginning and 243.3MB in the end (delta: 53.5MB). Free memory was 131.0MB in the beginning and 121.5MB in the end (delta: 9.6MB). Peak memory consumption was 64.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 98]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 154 locations, 4 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: 1.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 215 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 179 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 174 IncrementalHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 36 mSDtfsCounter, 174 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=268occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 380 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 334 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-12 01:09:58,961 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...