/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/weaver/test-semi1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 22:17:41,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 22:17:41,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 22:17:41,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 22:17:41,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 22:17:41,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 22:17:41,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 22:17:41,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 22:17:41,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 22:17:41,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 22:17:41,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 22:17:41,090 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 22:17:41,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 22:17:41,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 22:17:41,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 22:17:41,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 22:17:41,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 22:17:41,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 22:17:41,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 22:17:41,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 22:17:41,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 22:17:41,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 22:17:41,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 22:17:41,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 22:17:41,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-05 22:17:41,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 22:17:41,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 22:17:41,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 22:17:41,118 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 22:17:41,154 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 22:17:41,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 22:17:41,156 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 22:17:41,156 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 22:17:41,156 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 22:17:41,157 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 22:17:41,157 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 22:17:41,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 22:17:41,157 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 22:17:41,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 22:17:41,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 22:17:41,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 22:17:41,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 22:17:41,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 22:17:41,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 22:17:41,159 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 22:17:41,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 22:17:41,159 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 22:17:41,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 22:17:41,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 22:17:41,159 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 22:17:41,159 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 22:17:41,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 22:17:41,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 22:17:41,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 22:17:41,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 22:17:41,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 22:17:41,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 22:17:41,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 22:17:41,160 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 22:17:41,160 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 22:17:41,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 22:17:41,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 22:17:41,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 22:17:41,447 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 22:17:41,448 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 22:17:41,448 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-semi1.wvr.c [2022-12-05 22:17:42,430 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 22:17:42,646 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 22:17:42,646 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-semi1.wvr.c [2022-12-05 22:17:42,668 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4389706c8/33a1910c2a9740dba384d66de6afe72b/FLAG6c38144f5 [2022-12-05 22:17:42,681 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4389706c8/33a1910c2a9740dba384d66de6afe72b [2022-12-05 22:17:42,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 22:17:42,684 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 22:17:42,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 22:17:42,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 22:17:42,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 22:17:42,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:17:42" (1/1) ... [2022-12-05 22:17:42,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff06a04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:42, skipping insertion in model container [2022-12-05 22:17:42,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:17:42" (1/1) ... [2022-12-05 22:17:42,694 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 22:17:42,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 22:17:42,838 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:42,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:42,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:42,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:42,852 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/test-semi1.wvr.c[1979,1992] [2022-12-05 22:17:42,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 22:17:42,864 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 22:17:42,878 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:42,878 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:42,878 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:42,879 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:42,884 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/test-semi1.wvr.c[1979,1992] [2022-12-05 22:17:42,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 22:17:42,903 INFO L208 MainTranslator]: Completed translation [2022-12-05 22:17:42,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:42 WrapperNode [2022-12-05 22:17:42,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 22:17:42,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 22:17:42,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 22:17:42,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 22:17:42,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:42" (1/1) ... [2022-12-05 22:17:42,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:42" (1/1) ... [2022-12-05 22:17:42,936 INFO L138 Inliner]: procedures = 21, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 71 [2022-12-05 22:17:42,937 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 22:17:42,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 22:17:42,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 22:17:42,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 22:17:42,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:42" (1/1) ... [2022-12-05 22:17:42,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:42" (1/1) ... [2022-12-05 22:17:42,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:42" (1/1) ... [2022-12-05 22:17:42,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:42" (1/1) ... [2022-12-05 22:17:42,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:42" (1/1) ... [2022-12-05 22:17:42,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:42" (1/1) ... [2022-12-05 22:17:42,951 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:42" (1/1) ... [2022-12-05 22:17:42,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:42" (1/1) ... [2022-12-05 22:17:42,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 22:17:42,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 22:17:42,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 22:17:42,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 22:17:42,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:42" (1/1) ... [2022-12-05 22:17:42,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 22:17:42,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 22:17:42,999 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 22:17:43,014 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 22:17:43,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 22:17:43,045 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-05 22:17:43,045 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-05 22:17:43,045 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-05 22:17:43,046 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-05 22:17:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 22:17:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 22:17:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 22:17:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 22:17:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 22:17:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 22:17:43,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 22:17:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 22:17:43,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 22:17:43,059 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 22:17:43,123 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 22:17:43,124 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 22:17:43,294 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 22:17:43,334 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 22:17:43,334 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 22:17:43,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:17:43 BoogieIcfgContainer [2022-12-05 22:17:43,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 22:17:43,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 22:17:43,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 22:17:43,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 22:17:43,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 10:17:42" (1/3) ... [2022-12-05 22:17:43,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1776afe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 10:17:43, skipping insertion in model container [2022-12-05 22:17:43,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:42" (2/3) ... [2022-12-05 22:17:43,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1776afe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 10:17:43, skipping insertion in model container [2022-12-05 22:17:43,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:17:43" (3/3) ... [2022-12-05 22:17:43,341 INFO L112 eAbstractionObserver]: Analyzing ICFG test-semi1.wvr.c [2022-12-05 22:17:43,354 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 22:17:43,354 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 22:17:43,354 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 22:17:43,392 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-05 22:17:43,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 73 transitions, 162 flow [2022-12-05 22:17:43,461 INFO L130 PetriNetUnfolder]: 3/71 cut-off events. [2022-12-05 22:17:43,461 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 22:17:43,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 71 events. 3/71 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 18 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2022-12-05 22:17:43,468 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 73 transitions, 162 flow [2022-12-05 22:17:43,471 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 63 transitions, 138 flow [2022-12-05 22:17:43,472 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 22:17:43,488 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 63 transitions, 138 flow [2022-12-05 22:17:43,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 63 transitions, 138 flow [2022-12-05 22:17:43,527 INFO L130 PetriNetUnfolder]: 3/63 cut-off events. [2022-12-05 22:17:43,527 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 22:17:43,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 63 events. 3/63 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 17 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2022-12-05 22:17:43,529 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 63 transitions, 138 flow [2022-12-05 22:17:43,529 INFO L188 LiptonReduction]: Number of co-enabled transitions 108 [2022-12-05 22:17:45,507 INFO L203 LiptonReduction]: Total number of compositions: 52 [2022-12-05 22:17:45,530 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 22:17:45,534 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;@7267d334, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 22:17:45,535 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-05 22:17:45,537 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-12-05 22:17:45,537 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 22:17:45,537 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:17:45,538 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:17:45,538 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 22:17:45,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:17:45,541 INFO L85 PathProgramCache]: Analyzing trace with hash 621310472, now seen corresponding path program 1 times [2022-12-05 22:17:45,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:17:45,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577301982] [2022-12-05 22:17:45,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:17:45,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:17:45,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:17:45,858 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 22:17:45,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:17:45,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577301982] [2022-12-05 22:17:45,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577301982] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:17:45,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:17:45,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 22:17:45,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738913318] [2022-12-05 22:17:45,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:17:45,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 22:17:45,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:17:45,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 22:17:45,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 22:17:45,887 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 11 [2022-12-05 22:17:45,888 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 11 transitions, 34 flow. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 22:17:45,889 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:17:45,889 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 11 [2022-12-05 22:17:45,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:17:45,928 INFO L130 PetriNetUnfolder]: 8/32 cut-off events. [2022-12-05 22:17:45,928 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-05 22:17:45,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 32 events. 8/32 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 60 event pairs, 1 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 45. Up to 13 conditions per place. [2022-12-05 22:17:45,930 INFO L137 encePairwiseOnDemand]: 7/11 looper letters, 10 selfloop transitions, 2 changer transitions 10/22 dead transitions. [2022-12-05 22:17:45,930 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 22 transitions, 112 flow [2022-12-05 22:17:45,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 22:17:45,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 22:17:45,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2022-12-05 22:17:45,937 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5227272727272727 [2022-12-05 22:17:45,938 INFO L175 Difference]: Start difference. First operand has 18 places, 11 transitions, 34 flow. Second operand 4 states and 23 transitions. [2022-12-05 22:17:45,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 22 transitions, 112 flow [2022-12-05 22:17:45,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 22 transitions, 96 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-05 22:17:45,943 INFO L231 Difference]: Finished difference. Result has 18 places, 11 transitions, 36 flow [2022-12-05 22:17:45,944 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=11, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=36, PETRI_PLACES=18, PETRI_TRANSITIONS=11} [2022-12-05 22:17:45,947 INFO L294 CegarLoopForPetriNet]: 18 programPoint places, 0 predicate places. [2022-12-05 22:17:45,948 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 11 transitions, 36 flow [2022-12-05 22:17:45,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 22:17:45,948 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:17:45,948 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:17:45,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 22:17:45,949 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 22:17:45,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:17:45,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1459840864, now seen corresponding path program 2 times [2022-12-05 22:17:45,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:17:45,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129935134] [2022-12-05 22:17:45,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:17:45,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:17:45,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:17:46,151 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 22:17:46,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:17:46,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129935134] [2022-12-05 22:17:46,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129935134] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:17:46,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:17:46,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 22:17:46,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086269464] [2022-12-05 22:17:46,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:17:46,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 22:17:46,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:17:46,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 22:17:46,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 22:17:46,153 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 11 [2022-12-05 22:17:46,153 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 11 transitions, 36 flow. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 22:17:46,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:17:46,153 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 11 [2022-12-05 22:17:46,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:17:46,171 INFO L130 PetriNetUnfolder]: 2/14 cut-off events. [2022-12-05 22:17:46,171 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 22:17:46,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 14 events. 2/14 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 8 event pairs, 1 based on Foata normal form. 1/15 useless extension candidates. Maximal degree in co-relation 17. Up to 11 conditions per place. [2022-12-05 22:17:46,172 INFO L137 encePairwiseOnDemand]: 7/11 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2022-12-05 22:17:46,172 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 11 transitions, 56 flow [2022-12-05 22:17:46,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 22:17:46,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 22:17:46,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2022-12-05 22:17:46,173 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.2727272727272727 [2022-12-05 22:17:46,173 INFO L175 Difference]: Start difference. First operand has 18 places, 11 transitions, 36 flow. Second operand 4 states and 12 transitions. [2022-12-05 22:17:46,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 11 transitions, 56 flow [2022-12-05 22:17:46,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 11 transitions, 50 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 22:17:46,174 INFO L231 Difference]: Finished difference. Result has 16 places, 0 transitions, 0 flow [2022-12-05 22:17:46,174 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=11, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=16, PETRI_TRANSITIONS=0} [2022-12-05 22:17:46,174 INFO L294 CegarLoopForPetriNet]: 18 programPoint places, -2 predicate places. [2022-12-05 22:17:46,174 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 0 transitions, 0 flow [2022-12-05 22:17:46,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 22:17:46,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-05 22:17:46,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-05 22:17:46,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-05 22:17:46,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 22:17:46,177 INFO L458 BasicCegarLoop]: Path program histogram: [2] [2022-12-05 22:17:46,179 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 22:17:46,179 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 22:17:46,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 10:17:46 BasicIcfg [2022-12-05 22:17:46,181 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 22:17:46,181 INFO L158 Benchmark]: Toolchain (without parser) took 3497.55ms. Allocated memory was 200.3MB in the beginning and 241.2MB in the end (delta: 40.9MB). Free memory was 176.1MB in the beginning and 211.7MB in the end (delta: -35.6MB). Peak memory consumption was 4.7MB. Max. memory is 8.0GB. [2022-12-05 22:17:46,182 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 200.3MB. Free memory was 178.1MB in the beginning and 178.0MB in the end (delta: 70.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 22:17:46,182 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.89ms. Allocated memory is still 200.3MB. Free memory was 175.6MB in the beginning and 165.0MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-12-05 22:17:46,182 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.47ms. Allocated memory is still 200.3MB. Free memory was 165.0MB in the beginning and 163.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 22:17:46,183 INFO L158 Benchmark]: Boogie Preprocessor took 17.88ms. Allocated memory is still 200.3MB. Free memory was 163.0MB in the beginning and 162.0MB in the end (delta: 998.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 22:17:46,183 INFO L158 Benchmark]: RCFGBuilder took 380.15ms. Allocated memory is still 200.3MB. Free memory was 162.0MB in the beginning and 148.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-05 22:17:46,183 INFO L158 Benchmark]: TraceAbstraction took 2843.66ms. Allocated memory was 200.3MB in the beginning and 241.2MB in the end (delta: 40.9MB). Free memory was 147.3MB in the beginning and 211.7MB in the end (delta: -64.4MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 22:17:46,185 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 200.3MB. Free memory was 178.1MB in the beginning and 178.0MB in the end (delta: 70.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 217.89ms. Allocated memory is still 200.3MB. Free memory was 175.6MB in the beginning and 165.0MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.47ms. Allocated memory is still 200.3MB. Free memory was 165.0MB in the beginning and 163.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.88ms. Allocated memory is still 200.3MB. Free memory was 163.0MB in the beginning and 162.0MB in the end (delta: 998.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 380.15ms. Allocated memory is still 200.3MB. Free memory was 162.0MB in the beginning and 148.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2843.66ms. Allocated memory was 200.3MB in the beginning and 241.2MB in the end (delta: 40.9MB). Free memory was 147.3MB in the beginning and 211.7MB in the end (delta: -64.4MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 67 PlacesBefore, 18 PlacesAfterwards, 63 TransitionsBefore, 11 TransitionsAfterwards, 108 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 38 TrivialYvCompositions, 11 ConcurrentYvCompositions, 3 ChoiceCompositions, 52 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 59, independent: 57, independent conditional: 57, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 59, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 59, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 59, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 59, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 59, independent: 55, independent conditional: 0, independent unconditional: 55, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 14, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 59, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 59, unknown conditional: 0, unknown unconditional: 59] , Statistics on independence cache: Total cache size (in pairs): 82, Positive cache size: 80, Positive conditional cache size: 0, Positive unconditional cache size: 80, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 72]: 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 5 procedures, 81 locations, 3 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: 2.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60 IncrementalHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 60 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=1, InterpolantAutomatonStates: 8, 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, 0.4s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 168 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2022-12-05 22:17:46,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...